Improvements in Apparatus for Feeding Sheets of Paper to Printing Presses and other Machines.
Year: 1896

page_text: Date of Application, 8th S pt., 1896-Accepted, 7th Nov., 1396
COMPLETE SPECIFICATION.
[Communicated from abroad by THE ECONOMIC MACHINE COMPANY, of the
City of New York, in the County and State of New York, United States of
America.]
Improvements in Apparatus for Feeding Sheets of Paper to
Printing Presses and other Machines.
I, WILLIAM ROBERT LAKE, of the Firm of Haseltine, Lake & Co. Patent
Agents, 45 Southampton Buildings, in the County of Middlesex, do hereby
declare the nature of this invention and in what manner the same is to be
performed, to be particularly described and ascertained in and by the following
statement :-
This invention relates to a paper feeding machine whereby sheets of paper are
fed successively from a pile to a printing press or other machine which operates
upon sheet paper.
This invention has for its objects to improve the means for supporting the feed
table so that the pile of paper may be easily adjusted to the feeding devices, to
improve the construction of the buckling mechanism, to provide simple and reliable
means for regulating the upward movement of the feed table as the sheets are fed
off from the top of the pile, to improve the means for carrying the sheets from the
pile to the printing press, to provide an automatic trip mechanism whereby the
feeding of the sheets is arrested when more than one sheet is fed or if a sheet is not
properly presented to the front guides of the press and to improve the feeding
machine in several details of construction.
In the accompanying drawings
Figure 1 is a side elevation, on a reduced scale, showing the improved paper
feeding machine connected with a printing press.
Figure 2 is a fragmentary horizontal section on line 2-2 Figure 1.
Figure 3 is a fragmentary section, on an enlarged scale, on line 3-3, Figure 1.
Figure 4 is a sectional top plan view of the paper feeder.
Figure 5 is a fragmentary side elevation of the upper portion of the improved
paper feeder.
Figure 6 is a fragmentary sectional view of the ratchet feed mechanism taken
on line 6-6, Figure 4.
Figure 7 is a fragmentary vertical section, taken on line 7-7, Figure 4.
Figure 8 is a vertical transverse section, on an enlarged scale, of the buckling
head, taken on line 8-8, Figure 4.
Figure 9 is a horizontal section on line 9-9, Figure 8.
Figures 10 and 11 are vertical longitudinal sections on lines 10-10 and 11-11,
Figure 8, respectively.
Figure 12 is a fragmentary front elevation of the paper feeder.
Figure 13 is a vertical longitudinal sectional elevation on line 13-13,
Figure 12.
Figures 14 and 15 are cross sections on lines 14-14 and 15-15, Figure 4,
respectively.
Figure 16 is a fragmentary transverse section of the buckling finger and the
abrasion plate taken on line 16-16, Figure 17.
Figure 17 is a vertical longitudinal section on line 17-17, Figure 4.
Figure 18 is a vertical transverse section on line 18-18, Figure 17.

page_text: Figure 19 is a vertical longitudinal section, on an enlarged scale, on line 19-19,
Figure 4, showing the position of the gripper preparatory to grasping the front
edge of the sheet.
Figure 20 is a fragmentary elevation of the gripper showing the same closed
upon the sheet.
Figure 21 is a vertical longitudinal section of the gripper showing the gripper
opened for releasing the sheet.
Figures 22 and 23 are vertical transverse sections on lines 22-22 and 23-23,
Figure 19, respectively.
Figure 24 is a horizontal section on line 24-24, Figure 19.
Figure 25 is a fragmentary top plan view of the mechanism whereby the sheets
are carried from the feeding machine to the printing press.
Figure 26 is a vertical transverse section, on an enlarged scale, of the side
registering device taken on line 26-26 Figure 25.
Figure 27 is a fragmentary top plan view of the same.
Figure 28 is a vertical longitudinal section on line 28-28, Figure 26.
Figure 29 is a vertical transverse section on line 29-29, Figure 4.
Figure 30 is a side elevation, on an enlarged scale, of the automatic gauge or
device for detecting the passage of more than one sheet over the tapes, the
supporting bar being shown in section.
Figure 31 is a front elevation of the same with the carrying tape shown in
section.
Figure 32 is a side elevation and Figure 33 is a front elevation of a modified
construction of the upper member of the automatic gauge or detector.
Figure 34 is a fragmentary elevation, partly in section, of a
provided with a modification of the trip mechanism.
printing press
Figure 35 is a transverse view of a portion of the mechanism illustrated in
Figure 34.
Figure 36 is a diagram illustrating the electric circuit.
Figure 37 is a sectional side view, on an enlarged scale, of the guide or detector
lever and connecting parts.
Figure 38 is a detached view of the adjustable contact bolt.
Figure 39 is a front view of the detector lever.
Figure 40 is a bottom plan view of the same.
Figure 41 is a fragmentary side elevation of the detector lever showing a
modification of the contact devices.
Figure 42 is a front elevation of the same.
Figure 43 is a bottom plan view of the same.
Figure 44 is a detached side elevation of one of the contacts.
Figure 45 is a front view of the same.
Figure 46 is a side elevation, on an enlarged scale, of the trip mechanism,
sbowing the position of the parts during the normal operation of the press.
Figures 47 and 48 are similar views, showing two positions of the trip mechanism
preparatory to stopping the press.
Figure 49 is a fragmentary transverse section on an enlarged scale, of the trip
mechanism, and
Figure 50 is a bottom plan view of the same.
Like letters of reference refer to like parts in the several figures.
The main frame of the paper feeder consists essentially of two hollow
standards A A', a cross beam A connecting the upper ends of the standards,
Figures 12 and 29, a pair of upper and lower longitudinal supporting bars a a¹
Figures 2, 5 and 29 secured about midway of their length to each standard, front
and rear end pieces or brackets a², a³, Figures 3, 5 connecting the front and rear
ends, respectively, of each pair of longitudinal supporting bars, a transverse bar a,
Figure 4, connecting the front brackets, a transverse supporting bar a Figure 4
connecting the rear brackets, an intermediate bracket or cross head aº, Figures 4,
5, 17, mounted on each pair of longitudinal bars between one of the standards.

page_text: and front brackets, and an intermediate cross bar a' connecting the upper ends of
the cross heads.
B B', Figures 17 and 29, represent the vertical feed screws whereby the pile
of paper is elevated and which are journalled in bearings b arranged in the hollow
standards. These feed screws are provided at their upper ends with bevel wheels b'
which mesh with similar wheels secured to a transverse shaft 63 journalled in
bearings in the upper ends of the standards.
C, Figures 4, 5, 17, and 29, represents a pile elevating frame arranged between
the standards and composed of two longitudinal side pieces or slides c' c², Figures 4
and 29 which are guided to move vertically in the standards and two transverse
bars which connect the ends of the slides. The feed screws are provided with
screw nuts c which are connected with the slides, so that upon turning the screw
shafts the elevator frame will be raised or lowered. For the purpose of permitting
the pile of paper to be shifted laterally for adjusting the same to the sheet feeding
mechanism, the pile is adjustably supported as follows:-
DD Figures 5, 17, 29 represent two longitudinal rails or tracks which arc
arranged loosely on the transverse bars of the elevator frame so as to be capable
of sliding transversely thereon, and d d', Figure 17 are two transverse angle bars
which connect the rails and engage under the flanges on the upper portions of the
transverse bars of the elevator frame, so as to hold the rails both against vertical
and longitudinal movement on the elevator frame while permitting the same to
slide laterally thereon. The rails and their transverse connecting bars constitute
a laterally movable frame which rests on the vertically movable elevator frame and
this laterally movable frame is connected with the vertically movable frame by
some suitable adjusting mechanism, preferably the following:
d, Figures 17 and 19 represents a screw nut journalled in a bearing d³ on the
underside of one of the rails and provided with a hand wheel d for turning the
same and with flanges d' on opposite sides of the bearing which hold the nut
against lengthwise movement in the same. d is a transverse adjusting rod secured
at its outer end to one of the longitudinal members of the elevator frame and
arranged with its inner screw threaded end in the screw nut of the movable
tracks.
d', Figures 1, 5 and 17 represents a movable table on which the pile of sheets
rests and which is provided on its underside with wheels d resting on said rails.
The pile of paper is preferably placed upon the supporting table while the latter
is supported on a transporting truck and the loaded table is then rolled from the
truck upon the rails of the elevator. After this table has been placed on the
rails, the table is held against longitudinal movement thereon, preferably, by
blocks do secured to the rails and bearing against the front and rear cleats of the
table, as shown in Figure 17. By turning the hand screw of the elevator frame
the pile of paper is shifted laterally for adjusting it to the position of the
mechanism whereby the sheets are fed off from the top of the pile.
As the sheets are fed off from the top of the pile, the feed table is raised for
maintaining the proper relation between the surface of the pile and the feeding
devices by automatic mechanism which is constructed as follows:
E, Figures 4, 5, 6 and 29, represents a ratchet wheel secured to the transverse
feed shaft and e is an actuating pawl engaging with the ratchet wheel. This
pawl is pivoted by a transverse pin e' to a rock plate or pawl carrier e which is
hung loosely on the feed shaft. The rock plate projects forwardly from the feed
shaft so that its weight always tends to swing the rock plate downwardly in front
of the feed shaft and moves the pawl forwardly independent of the ratchet wheel.
represents an actuating rod which is pivoted at its front end to a crank e
arranged on one end of a counter shaft and resting with its rear portion on the
inwardly projecting portion of the pin whereby the pawl is attached to the rock
plate. The rear portion of the actuating rod is provided with a depending hook e
which is adapted to engage with the pin of the pawl and move the latter rear-
wardly. During the rearward movement of the pawl it is in engagement with the

page_text: upper portion of the ratchet wheel and turns the same for elevating the feed table.
The pawl is always moved rearward to the same point by the crank of the counter
shaft but its forward movement is varied according to the height of the pile of
paper, so that the extent of the rearward movement of the pawl is always
dependent upon the previous forward movement thereof. is a detent pawl
whereby the forward movement of the actuating pawl is controlled and which is
adapted to engage with a shoulder e formed on the front side of the rock plate.
The detent pawl is mounted loosely on the outer end of a regulating rock shaft e
which is journalled in bearings on the standards. el is a forwardly projecting
weight lever which is secured to the regulating shaft outside of the detent pawl
and provided with two inwardly projecting pins ele2 which are arranged
respectively in front and in rear of the detent pawl. When the top of the pile is
in an abnormal position, the extent of the turning movement of the regulating
shaft, in the direction of the arrow, Figure 5, is such that the rear pin el of the
weight lever strikes a shoulder el on the rear side of the detent pawl, Figure 6,
and moves the same forwardly out of the path of the shoulder on the rock plate,
thereby permitting the latter to move forwardly and downwardly its full extent
during the forward movement of the actuating rod and causing the actuating
pawl to take up a new tooth on the ratchet wheel, so that the latter will be turned
the extent of one tooth during the subsequent rearward movement of the actuating
rod. When the top of the pile is in a normal position, the extent of movement of
the regulating shaft in the direction of the arrow, Figure 5, is not sufficient to
move the detent pawl out of the path of the shoulder on the rock plate, and the
detent pawl, therefore, arrests the forward movement of the rock plate during the
forward movement of the actuating rod by coming in contact with the shoulder of
the rock plate and prevents the actuating pawi from taking up a new tooth on the
ratchet wheel, so that the latter will not be turued during the subsequent rear-
ward movement of the actuating rod. When the forward movement of the rock
plate has been arrested by the detent pawl, the actuating rod moves forwardly
independent of the rock plate and during this movement the rod slides upon the
pin of the actuating pawl and the hook thereof is disengaged from said pin. The
front pin of the weight lever serves to prevent the actuating pawl from being
displaced. 4, Figures 4, 7 and 12, are pile regulating or gauge feet which are
adapted to bear upon the pile of paper every time a sheet has been removed
therefrom and which control the elevating mechanism of the feed table. These
feet are arranged over the front portion of the pile on opposite sides of the centre
of the table and are secured to opposite ends of a transverse bar e¹ attached to
the lower end of a vertically movable guide rod el. The latter is guided in
upper and lower eyes el els formed on a sleeve el which is connected with the front
transverse supporting rod. When the guide rod is unrestrained it is depressed for
the purpose of bringing the regulating foot to bear upon the pile, by means of a
spring surrounding the guide rod between the upper guide eye and a
collar e secured to the guide rod. Figures 5 and 7 is a horizontal shifting
rod which passes loosely with its front end through an eye e secured to the
upper end of the guide rod of the regulating foot and which is pivotally connected
at its rear end with a depending rock arm secured to the regulating shaft.
e is a stop lug arranged on one side of the shifting rod and secured to the upper
end of an arm formed on the sleeve e¹. 2 is a tappet secured to the shifting rod
and adapted to engage with the front side of the stop lug. Every time the
regulating feet are lowered upon the pile the weight lever is permitted to turn the
regulating shaft in the direction of the arrow, Figure 5, thereby exerting a
rearward pull upon the shifting rod through the depending rock arm. If the
top of the pile of paper is in a normal position, the descent of the regulating feet
is not sufficient to carry the front tappet below the stop lug and in this relative
position of the tappet and lug, which is shown in Figure 7, the tappet strikes the
stop lug during the subsequent rearward movement of the shifting rod produced
by the pull of the weight lever, whereby the rearward movement of the shifting

page_text: rod is arrested and the regulating shaft is prevented from being turned sufficiently
in the direction of the arrow, Figure 5, to throw the detent pawl out of the path
of the rock plate, whereby an effective feeding movement of the actuating pawl is
prevented. When the height of the pile of paper has been reduced considerably
the regulating foot, while being lowered upon the pile, descends a sufficient distance
to permit the tappet of the shifting rod to pass below the stop lug, so that the
shifting rod can be pulled rearwardly and the regulating shaft is free to be turned
a sufficient distance in the direction of the arrow, Figure 5, to permit the detent
pawl to be moved out of the path of the shoulder on the rock plate, thereby
enabling the latter and the actuating pawl to move forwardly to the extent of one
tooth of the ratchet wheel during the forward movement of the actuating rod
and causing the ratchet wheel to be turned during the subsequent rearward
movement of the actuating rod for elevating the feed table. represents an elbow
lever whereby the regulating foot is raised from the pile while the top sheet is
being fed off and the regulating shaft is turned for restoring the detent pawl to
its operative position. This elbow lever is mounted loosely on a transverse rock
shaft 28 and is provided on its lower arm with horizontal front and rear shifting
pins arranged on the underside of the shifting rod. is a rear tappet
secured to the shifting rod in front and in the path of the rear shifting pin. Upon
raising the lower arm of the elbow lever, after the regulating feet have been.
lowered upon a pile of normal height and the front tappet has not cleared the stop
lug, the front shifting pin engages against the underside of the shifting rod and
lifts the regulating feet from the pile. Upon raising the lower arm of the elbow
lever after the regulating feet have been lowered upon the pile while the latter is
below the normal height and the shifting rod has been moved rearwardly by the
weight lever by reason of its front tappet having cleared the stop lug, the rear
shifting pin eo first engages with the rear side of the rear tappet and inoves the
shifting rod forwardly sufficiently to carry the front tappet in front of the stop lug,
after which the front shifting pin 29 engages with the underside of the shifting rod
and lifts the regulating feet from the pile. The upward movement of the lower
arm of the elbow lever is produced by a cam e secured to the counter shaft and
engaging with a roller mounted on the upper arm of the elbow lever. After the
shifting rod has been raised by the lower arm of the elbow lever the latter returns
to its normal position by gravity. The feeding mechanism whereby the sheets are
successively fed from the top of the pile is constructed as follows:-
F, Figures 4, 8 and 12 represents longitudinal shafts which are arranged on
opposite sides of the centre of the machine, each shaft being journalled with its
ends in bearings f Figure 18 formed in brackets / but held against lengthwise
movement therein by collars f2 bearing against the inner sides of the brackets.
The brackets f are mounted on the front and rear transverse supporting rods and
are capable of transverse ndjustment thereon. F are longitudinal supporting rods
arranged parallel on the inner sides of the longitudinal shafts and secured with
their ends to the brackets f¹. The transverse counter shaft e is journalled in
bearings formed in the upper portions of the intermediate cross heads a and motion
is transmitted from the same to each of the longitudinal shafts by means of
intermeshing spiral gear wheels f f secured respectively to the transverse and
longitudinal shafts. The upper spiral gear wheel 3 Figures 4 and 12 is splined to
the counter shaft so as to permit of longitudinal adjustment of this gear wheel on
said shaft while compelling the same to turn therewith. f, Figure 29 is a yoke
which is secured to one of the longitudinal supporting rods and which embraces the
transverse and longitudinal shafts on opposite sides of the spiral gear wheels.
GG represent carrying heads which support the buckling mechanism whereby the
rear corners of the top sheet are simultaneously buckled inwardly. Each of these
heads is mounted directly upon one of the supporting rods and capable of longi-
tudinal adjustment thereon by a thumb screw 9 and is indirectly mounted on the
adjacent longitudinal shaft by means of a sleeve 9' interposed between the carrying
head and the shaft. This sleeve is capable of sliding on the shaft but held against

page_text: turning thereon by a spline g' and is capable of turning in the carrying head but
held against lengthwise movement therein by means of collars g g arranged on the
sleeve on opposite sides of the head, Figure 11.
H Figures 8 and 10 represents the reciprocating buckling fingers each of which
is pivoted to the lower arm of a rock lever and preferably provided at its free
end with a buckling roller h¹ which rests upon one of the rear corners of the pile of
paper in the usual manner. The rock lever is pivoted between its upper and lower
arms upon a horizontal arbor 2 secured to the rear side of the carrying head, so
that the rock lever will swing in a vertical plane transversely of the pile. The
forward movement of the buckling finger is produced by a cam ³ secured to the
supporting sleeve gl and engaging with a roller on the upper arm of the rock
lever and the backward movement of the same is produced by a guide rol h
ivoted at one end to the lower arm of the rock lever and passing with its other
end through a guide arm or bar on the carrier head and a spring 4 bearing with
its ends against the guide arm and a shoulder on the guide rod. I represents a
vertically oscillating rock arm Figure 10 whereby pressure is applied to the
buckling finger during its forward stroke and the latter is lifted from the pile
during its backward. movement. This rock arm is arranged trausversely above the
supporting sleeve and pivoted at its cuter end to a horizontal arbor i arranged on
the carrying head. The upward movement of the rock arm is effected by a cam¹
Figure 11 secured to the supporting sleeve and engaging with a roller Figure 8
on the rock arm and the downward movement is effected by a spring connected
at its upper end to the rock arın and adjustably connected at its lower end with the
guide arm by a screw passing through the guide arm and engaging with a screw
out secured to the lower end of the spring. is a connecting rod which is
pivoted with its upper end to the free end of the rock arm and passes with its lower
-end through an eye i formed on the inner free end of the buckling fiuger. is a
tension spring surrounding the connecting rod between the eye of the buckling
finger and a thumb nut arranged on the screw threaded portion of the connecting
rod. During the forward movement of the buckling finger the same is pressed
against the top of the pile of paper by the tension spring 8, the latter being
compressed by the preponderating pressure of the spring which pulls the rack
arm downwardly. During the backward movement of the buckling finger the rock
arm is lifted and this lifting movement is transmitted to the buckling inger by a
pin 10 arranged on the lower end of the connecting rod and engaging with the
underside of the eye of the buckling finger, thereby raising the buckling finger
from the pile on its return stroke. The backward movement of the buckling finger
can be regulated by a regulating rod i pivoted with its lower end to a lug on the
outer side of the rock lever and passing loosely with its upper cad through the
arbor i and a thumb nut 3 arranged on a screw threaded portion of said rod and
adapted to strike the underside of the arbor.
J Figures 5, 8, 17 represents the buckling or holding down feet each of which is
arranged at a short distance in front of one buckling finger and against which the
top sheet is buckled by the buckling finger during the forward movement of the
latter. Each foot has a vertical reciprocating movement toward and from
the surface of the pile of paper and also a horizontally oscillating movement for
the purpose of enabling the foot to clear the buckle in the top sheet and bear
upon the next lower sheet. The buckling foot is secured to the lower end of a
spindle arranged in rear of the pile of paper and journailed in bearings jj³
arranged on the rear side of the carrying head. The upward movement of the
buckling foot is produced by a cam 3 secured to the supporting sleeve and bearing
against a roller on the underside of a rock arm which is journalled at its outer
end on the arbor i and provided at its inner end with a fork which engages with an
annular groove in the upper end of the spindle. The downward movement of the
buckling foot is produced by a spring connected at its upper end to the rock
arm and adjustably connected at its lower end to the guide bar 4 by a thumb
screw arranged in said bar and engaging with a screw nut secured to the lower

page_text: end of the spring j. K Figures 8 and 17 is an elongated gear wheel or pinion
formed centrally on the spindle and k is a horizontally sliding bar provided with a
gear rack, Figure 9 meshing with the gear wheel and guided in ways formed in
the upper bearing of the spindle and an arm ³ secured to the rear side of the
carrying head. The spindle is turned for the purpose of moving the buckling foot
rearwardly to clear the pile by a cam k secured to the supporting sleeve and
engaging with a roller k, Figure 8 mounted on the outer end of the sliding bar.
The buckling finger is swung forwardly by a spring k which surrounds a horizontal
guide rod k and bears with its ends against the upper spindle bearing and a guide
lug 3 secured to the gear rack bar.
28
L, Figures 5, 8 and 10 represents the vertically movable pile retaining fingers
each of which bears upon the pile of paper in rear of one buckling finger and holds
the pile in place while the top sheet is being removed. Each pile retaining finger
is secured to the lower end of a vertically movable guide rod land is guided at its
lower end in the guide bar and with its upper portion in an externally screw
threaded sleeve which engages with au internally screw threaded eye 12,
Figure 10 arranged on the rear side of the carrying head. is a vertical lifting
rod arranged parallel and in rear of the guide rod and passing with its lower
portion through the guide bar. 11 represent two coupling bars arranged one-
above the other on the guide and lifting rods, each of said bars being secured to
one of said rods and capable of sliding on the other rod. The pile retaining finger
is yieldingly held in a depressed position in engagement with the top of the pile
by a spring surrounding the guide rod and bearing with its ends against the
lower end of the screw sleeve and the upper coupling bar secured to the guide
rod. Figure 8 is a cam whereby the pile retaining finger is lifted from the
paper and which is secured to the supporting sleeve. This cam bears against the
underside of a roller 18 arranged upon a rock arm 1, the latter being pivoted with
its outer end on the arbor i and connected at its inner end with the upper end of
the lifting rod. During each revolution of the cam the rock arm is lifted which
causes the lower coupling bar connected with the lifting rod to bear against the
upper coupling bar connected with the guide rod, whereby the pile retaining finger
connected with the latter is lifted from the pile and then the rock arm is again
lowered sufficiently to permit the pile retaining finger to bear on the pile and the
lower coupling bar to recede from the underside of the upper coupling bar, so that
the spring can exert its pressure freely upon the pile retaining finger. The several
cams on the supporting sleeve are separated by collars 10 Figure 11 and secured
to the sleeve by a key, so that all of the cams are compelled to turn with the
Eleeve and are also held against lengthwise movement on the sleeve by the collar g'
bearing against the foremost cam and a collar bearing against the rearmost.
Upon loosening the clamping screw g the buckling device can be shifted
backward or forward on the longitudinal supporting rod and shaft for adjusting
the same to sheets of different sizes without disturbing the adjustment of the
buckling devices and the relative position of the cams. The buckling devices can
also be adjusted transversely by loosening the clamping bolts of the brackets and
shifting the latter on the transverse supporting rods together with the buckling
devices, spiral gears and longitudinal rod and shaft.
cam.
During the forward movement of the buckling finger the holding down foot is
depressed and the pile retaining finger is slightly elevated, whereby the corner of
the top sheet is pulled from underneath the latter and buckled against the holding
down foot, as shown in Figure 8. When the buckling finger reaches the end of
its forward movement the pile retaining finger is depressed and the holding down
foot is raised, thereby allowing the buckle in the sheet to pass in front of the
holding down foot. As the holding down foot moves upwardly it is also turned
rearwardly, so as to clear the top of the pile, as shown in dotted lines in Figure 8,
and during the subsequent downward movement the foot swings forwardly and
enters underneath the buckled portion of the top sheet and also descends until it
bears upon the pile below said sheet. During the first portion of the backward

page_text: movement of the buckling finger it is raised, as usual, to allow the buckled portion
of the sheet to straighten out and then lowered again during the last portion of
the backward movement. In order to prevent the top sheet, while straightening
out from getting under the pile retaining finger, in which case the sheet would be
clamped by the retaining finger, the latter is lowered upon the pile before the
buckling finger is raised from the top sheet at the end of its forward movement, so
that when the buckling finger rises and the straightening out of the sheet takes
place, the sheet will pass over the top of the retaining finger and so be left free
to be fed off from the top of the pile.
The front corners of the sheets are simultaneously buckled inwardly, as shown
in Figures 4 and 12 by two buckling devices which may be of any suitable
construction. Each of these buckling devices is preferably constructed as
follows:-
m, Figures 4, 12 and 17 represents a carrying head supporting the buckling
mechanism and mounted on one of the longitudinal shafts and supporting rods.
m² represents the reciprocating buckling finger pivoted to the lower arm of a rock
lever m² and resting on one of the front corners of the pile of paper. The rock
lever is pivoted between its upper and lower arms upon a horizontal arbor m³
secured to the front side of the carrying head. The forward movement of the
buckling finger is produced by a cam m secured to the longitudinal shaft and
engaging with a roller m³ on the upper arm of the rock lever. m is a guide rod
pivotally connected at its lower end with a lug on the outer side of the rock lever
and passing with its upper portion through a stud or arbor m' arranged on the
front side of the carrying head. The backward movement of the buckling finger
is produced by a spring . surrounding the upper portion of the guide rod and
bearing with its end against the top of the stud and a screw nut m³ arranged on
the threaded upper end of the guide rod. The backward movement of the
buckling finger may be regulated by means of a thumb nut m10 arranged on the
guide rod and adapted to bear against the under side of the stud. At the end of
the forward movement of the buckling finger the latter is raised from the pile and
retained in an elevated position until it reaches the end of its backward movement
by means of a rock arm ml which is pivoted at its outer end on the stud m² and
connected at its inner end by a rod m with the buckling finger and a cam m
secured to the longitudinal shaft and bearing against a roller on the rock arm.
The buckling finger is raised slightly near the end of its forward stroke for the
purpose of freeing the lower sheets from the top sheet, if more than one sheet has
been buckled, the lifting cam m being constructed to produce this effect, as shown
in Figure 15. While the buckling finger is slightly raised it still retains a sufficiently
firm grip on the top sheet to preserve the buckle in the same but the pressure is
removed from the lower sheets so that if more than one sheet has been buckled,
all the sheets below the top sheet will slip along the underside of the top sheet
and then straighten out again. m Figures 14 and 16 represents an abrasion plate
whereby the face of the rubber buckling roller is kept clean and prevented from
becoming smooth or glazed. This plate is arranged above the buckling roller
with its toothed or roughened underside in that portion of the path of the buckling
roller which the latter traverses during its backward movement while in an elevated
position, as shown in Figure 16. As the buckling roller rolls along the toothed
lower face of the abrasion plate the latter digs into the surface of the roller and
removes any grit, fibres or other matter adhering to the roller, and also rougbens
the same, thereby preventing the roller from becoming smooth and insuring a firm
grip of the same upon the paper. The inner end of the abrasion plate is curved
upwardly, so as to direct the buckling roller to the underside of the same. The
plate is supported so as to be capable of vertical adjustment toward and from the
buckling roller by means of a stem m¹s arranged on the upper side thereof and
secured in a lug me on the front side of the carrying head by a set screw.
By shifting the brackets on the transverse supporting rods the buckling devices
may be adjusted transversely in the machine for feeding different sizes of sheets.

page_text: The gauge feet bear upon the pile in front of the buckling fingers and serve the
double purpose of abutments against which the top sheet is buckled by the front
fingers during the forward movement of the latter and also as gauge feet whereby
the upward movement of the feed table is regulated and controlled.
It has been found in practice that when the buckling devices at the front and
rear corners of the sheet on the same side of the machine are actuated so that the
front and rear portions of the sheet are buckled simultaneously, a kink is formel
in the sheet where the two buckled portions of the sheet meet at an angle to each
other. This is particularly liable to happen when operating upon heavy or com-
paratively stiff paper, thereby damaging the sheet and rendering the same worthless
in the production of fine printed work. In order to avoid this kinking of the
sheets the front and rear buckling devices are so timed that they work successively
and not simultaneously. The rear corners of the sheet are buckled first by the
rear buckling devices and then allowed to straighten out again by lifting the
buckling devices from the top sheet after which the front corners of the sheet are
buckled by the front buckling devices and then allowed to straighten out again by
raising the front buckling devices. By this relative timing of the front and rear
buckling devices the front and rear portions of the sheet cannot be buckle at the
same time thereby avoiding damaging and wasting of the sheets which would
otherwise result and also allowing the air to enter underneath the top sheet and
separate the same more thoroughly from the next following sheet. It is
advantageous to buckle the rear corners first when feeling off devices are used
which take hold of the buckled front edge of the sheet but otherwise it is
sufficient to buckle the front and rear corners successively.
N, Figure 13 represents the receiving tape roller of the mechanism which
carries the sheets from the pile to the printing press or other machine to which
the sheets are being fed. This roller is journalled transversely in bearings on the
front brackets of the longitudinal supporting rods and is provided at one end with
a driving sprocket wheel n, Figure 1 and geared at its opposite end with the trans-
verse driving shaft of the feeding mechanism by means of gear wheels n' n³,
Figure 12 secured respectively to the roller shaft and driving shaft and a counter
shaft n³, Figures 4 and 12 provided with gear wheels n4, n meshing respectively
with the gear wheels of the tape roller shaft and the driving shaft.
After the rear and front corners of the top sheet have been buckled, the sheet
is carried from the pile to the tape roller by two gripping carriers, each of which
is constructed as follows:-
O, Figures 4 and 19, represents a reciprocating actuating rod arranged length-
wise over the pile between one of the front buckling fingers and the adjacent
buckling or gauge foot. This rod is pivotally connected at its rear end with a
depending rock arm o secured to the transverse rock shaft 28 and sliding with its
front portion in front and rear eyes o² 3 formed on a supporting yoke of. The
rock shaft is arranged in rear of the transverse driving shaft and is journalled with
its ends in bearings formed in the intermediate crossheads or brackets. The
yoke o is hung loosely on the front transverse supporting bar a and is held
against sliding lengthwise thereon by means of two connected collars o, Figure 23,
arranged on the supporting rod on opposite sides of the yoke, and a set screw
arranged in one of the collars. The forward movement of the reciprocating rod
is produced by an upper rock arm of secured to the rock shaft 28 and a cam o
secured to the driving shaft and engaging with a roller ou the upper rock arm.
The backward movement of the reciprocating rod is produced by a lower rock
arm o secured to the same rock shaft and a cam o arranged on the driving shaft
and engaging with a roller on the lower rock arm. P represents a gripper head
which is mounted on the actuating rod and which carries the gripping devices
whereby the sheet is grasped and carried from the pile to the receiving tape
roller.
P. Figures 12 and 22 represents the upper jaw of the gripper which is arranged
horizontally and connected at its rear end with the lower portion of the gripper

page_text: "
head, while its front end is bifurcated. p' represents the lower jaw of the gripper
which is shaped and pivoted at its upper end by a transverse pin p² to the lower
portion of the gripper head. The lower portion of the lower jaw is adapted to
pass through the space in the bifurcated portion of the upper jaw, as shown in
Figure 20. p is a gear segment formed concentrically with the pivot on the upper
end of the lower gripper jaw and p represents a gear rack arranged to slide in a
horizontal socket Figure 21 formed in the gripper head above the gripper jaws
and engaging with the gear segment of the lower jaw, so that upon moving the
gear rack lengthwise in the gripper head the lower jaw will be opened or closed.
The rear portion of the gear rack is provided with a contracted stem p" which
forms a shoulder in rear of the rack and which is guided in a hollow screw
sleeve parranged in the screw threaded rear portion of the socket. The gear
rack is moved forwardly, for the purpose of closing the lower jaw by means of a
spring p surrounding the stem of the gear rack and bearing with its ends against
the shoulder on the rack and the front end of the screw sleeve. The tension of
the spring may be regulated by screwing the screw sleeve into the socket more or
less. Figure 21, is a stop against which the gear rack strikes during the last
portion of the forward movement of the gripper head and whereby the gear rack
is shifted for opening the gripper and releasing the sheet. This stop consists,
preferably, of a screw arranged in a depending lug po Figure 19 on the front eye
of the gripper head, so that by adjusting this screw the time of opening the gripper
can be regulated. 11, Figures 22 and 2+ represents a spring bolt or catch whereby
the lower jaw is held in an open position preparatory to closing upon the sheet.
This spring bolt is arranged to slide at right angles to the gear rack in a socket pl
formed on the outer side of the gripper head and is adapted to engage its inner
end with a shoulder pla formed on the outer side of the gear rack for holding the
same against forward movement in the gripper head. p is an elbow lever whereby
the spring bolt is retracted for releasing the gear rack. This lever is pivoted on
the gripper head in rear of the spring bolt and extends with one of its arms into
a notch p¹ formed in the rear side of the spring holt. p is a stop against which
the other arm of the elbow lever engages during the last portion of the backward
movement of the gripper head for withdrawing the spring bolt and permitting the
gear rack to close the lower gripper jaw. This stop consists of a screw arranged
in a depending lug p" on the rear eye of the gripper head, so that by adjusting
this screw the closing of the gripper can be regulated.
For the purpose of thoroughly separating the top sheet from the pile, the
grippers of both heads are swung first outwardly and then inwardly after they
have grasped the sheet. The simultaneous outward movement of both grippers
raises the middle portion of the sheet from the pile, thereby allowing air to enter
between the top sheet and the next lower sheet and effectually separating these
sheets. The subsequent inward movement of the grippers permits the central portion
of the sheet to descend loosely upon the pile. This outward and inward movement
of each gripper is effected by the following mechanism :-
p18, Figures 4, 12 and 14, is a cam which is secured to the longitudinal shaft in
front of the carrying head. p is a rock lever which is pivoted on the supporting
rod adjacent to the front side of the carrying head and engages with its short
outer arm against said cam while its long inner arm engages against the underside
of a lug 2 on the outer side of the gripper head. The rock lever is held against
the face of the cam by a spring p. The gripper head is so mounted on its
actuating rod that it can rock on the same and the cam and lever just described
produce a rocking movement of the gripper head in the direction in which the
gripper jaws swing outwardly. As the gripper head moves forwardly in feeding
off the sheet the lug 20 slides off the inclined or curved front face, Figure 4, of
the rock lever, which latter does not partake in this forward movement, and the
gripper is swung inwardly by a flat spring p22 Figure 22 secured to the yoke and
bearing against the gripper head below the actuating rod. The inclined or curved
face of the rock lever allows the gripper head to leave the lever gradually. When

page_text: the gripper head makes its backward stroke the cam has depressed the inner arm
of the rock lever and the gripper head takes position with its lug p2 above the
inner arm of the lever. The extent of the rocking movement of the gripper head
is limited by a cross pin p" which is secured in the actuating rod and projects into
slots p Figure 19 in the hub of the gripper heal. If desired, only one of the
grippers may be provided with mechanism for producing said lateral movement,
in which case one gripper holds one side of the sheet while the other gripper
moves outwardly to lift and loosen the sheet.
During the forward movement of each front buckling finger the adjacent buckling
foot bears upon the pile, the adjacent carrying gripper is open and stands with its
upper jaw over the front edge of the pile, as represented in Figures 4 and 12, and
the corner of the sheet is buckled against the lower face of the upper jaw, as
represented in Figure 12, by dotted lines. At the end of the forward movement
of the buckling finger the latter and the buckling foot remain upon the pile so as
to preserve the buckle in the sheet. At this time the gripper head completes ita
backward movement, which causes the elbow lever p to strike the rear stop pls,
thereby withdrawing the spring bolt, releasing the gear rack and closing the lower jaw
upon the sheet, as represented in Figure 20. The buckling finger and buckling foot are
now raised and the gripper is swang outwardly and inwardly for loosening and
separating the central portion of the sheet and the gripper is moved forward in
this closed position until the front end of the sheet arrives over the tape roller.
The front end of the gear rack now strikes the front stop whereby the forward
movement of the gear rack is arrested while the gripper head continues its forward
movement independently of the gear rack, thereby causing the lower gripper jaw
to be turned on its pivot in the proper direction to open the jaw and release the
sheet, as shown in Figure 21. The lower jaw is turned to such an extent in
opening that it passes above the face of the upper jaw, thereby preventing the edge
of the sheet from being caught by the lower jaw upon withdrawing the sheet from
the pile. While the sheet is being withdrawn from the pile the buckling finger
moves backward to the place of beginning and when the said sheet has been
wholly withdrawn from the pile the buckling finger and buckling foot are again
lowered upon the pile, and the gripper head moves backwardly almost to the
eud of its backward movement until its elbow lever stands close to the rear
stop. During the forward movement of the gripper head independently of the
gear rack, the spring bolt is carried in front of the shoulder of the gear rack, so
that the latter upon being projected by its spring during the subsequent backward
movement of the gripper head will catch with its shoulder against the spring bolt,
thereby permitting only a partial downward movement of the lower gripper jaw
and holding the same in an oblique position but sufficiently open to permit of
buckling the sheet properly against the upper jaw, as represented in Figure 19.
The face of the lower gripper jaw is smooth so as to offer only slight resistance to
the paper while the upper gripper is preferably provided in rear of its bifurcated
portion with a facing p of rubber or similar material which offers considerable
resistance to the paper. When two sheets have been buckled accidentally at the
same time this construction of the jaws causes the upper jaw to grasp the upper
sheet while the lower jaw slips on the second or lower sheet, so that the latter is left
behind and only the top sheet is carried to the tape roller, thereby preventing more
than one sheet from being fed at a time. It has been found in practice that the
grippers do not always close upon the sheet properly and often miss a sheet when
the two jaws of each gripper stand vertically in line because the buckled portion of
the sheet is generally presented to the jaws at an angle thereto.
avoid this difficulty, the two jaws are preferably placed obliquely and at right
angles, or nearly so, to the buckled portion of the sheet on that side of the crown
of the buckle nearest the buckling foot, as shown in Figures 12 and 22, thereby
better enabling the jaws to grasp the sheet.
After the sheet has heen deposited with its front edge upon the tape roller
and tapes it is pressed against the tape roller by two vertically movable pressure

page_text: rollers Q Figures 4 and 17 which bear upon the longitudinal margins of the sheet.
Each of these pressure rollers is raised and lowered by the following mechanism:
2 Figure 17 is a lower elbow lever pivoted on the front side of the head carrying
the buckling mechanism so as to swing vertically and provided on its front arm
with a transverse arbor on which the pressure roller is journalled. q is a follower
rod extending horizontally through openings in the carrying head and a bracket g
secured to the rear side of the head and provided at its front end with a head.
The upper arm of the elbow lever is provided with a screw q³ which engages with
a seat formed in the front side of the head on the follower rod. 9 is a spring
which tends to depress the pressure roller and which bears with its ends against the
bead of the follower rod and the bracket of the carrying head. is an elbow lever
pivoted on the arbor m at right angles to the lower elbow lever and having its
lower arm connected with the lower arm of the lower lever by a link q. The
upper elbow lever is turned in the proper direction for raising the pressure roller
by a cam g' mounted on the longitudinal shaft and engaging with a roller on the
upper arm of the upper elbow lever. While the sheet of paper is being carried
with its front edge by the grippers upon the tape roller the pressure rollers are
elevated by the cams g. After the grippers have released the sheet and deposited
the same on the tape roller the springs lower the pressure rollers so that they
press the sheet against the tape roller, whereby the sheet is carried wholly from the
pile. By mounting the pressure rollers on the heads which carry the buckling
devices, these parts are always adjusted together for different size sheets whereby
the relative position of the buckling devices and pressure rollers is always
preserved.
When comparatively stiff or heavy paper is being fed the corner portions of the
sheets bear against the under sides of the buckling rollers and pressure rollers with
considerable friction while being carried off from the pile by the grippers and
sometimes the resistance of these rollers causes the sheet to be pulled out of the
jaws of the grippers. In order to avoid this a guard y Figure 17 is arranged in
rear of each buckling finger in such a position that the marginal portions of the
sheets are thereby depressed below the buckling and pressure rollers as the sheets
are carried away by the grippers and prevented from coming in contact with said
rollers. These guards are preferably composed of bent rods or heavy wires and
supported at their rear ends on the supporting roda, as shown in Figures 12
and 17.
R Figures 5, 7 and 17 represents the stationary guides against which the front
of the pile is placed and whereby it is kept in position while being elevated. These
guides are mounted loosely ou a transverse rock shaft r which is journalled in
bearings on the front brackets and extend to within a short distance from the top
of the pile. represents movable front guides which have a movement toward
and from the upper front side of the pile for the purpose of removing the
resistance from the sheets during the buckling operation and straightening the
pile after the buckling operation. These movable guides are secured with
their lower ends to the guide rock shaft and extend with their upper ends a
short distance above the top of the pile. These guides are awung forward, away
from the front of the pile by a spring Figure 13 secured at one end to an
upwardly extending rock arm mounted on the guide rock shaft. is a rock
lever pivoted on one of the intermediate brackets and having its lower arm
connected by a rod with the rock arm of the guide rock shaft. The movable
front guides are moved backwardly against the front side of the pile by a cam
secured to the transverse driving shaft and engaging with the upper arm of the rock
lever . During the forward movement of the buckling fingers the movable
front guides are swung forwardly out of contact with the top portion of the pile, ad
shown in Figure 13, whereby the front edge of the top sheet is relieved fron
resistance and the top sheet is left free to be buckled. The upper end of the
movable front guides are arranged in front of the points where the buckles in the
sheet are formed and extend a short distance above the pile, as shown in Figures 12

page_text: and 13. This enables the grippers which are arranged adjacent to these movable
guides to carry the top sheet over the same but the latter intercept any lower sheets
which may be pulled forward by friction and prevent them from leaving the pile.
After the buckled top sheet has been grasped by the grippers and before the latter
begin their forward movement the front guides are moved rearwardly against
the pile so as to prevent the following sheets from being pulled forward and
displaced to any considerable extent. After the greater portion of the top sheet
has been carried from the pile to the carrying mechanism the front guides are
vibrated back and forth several times in quick succession whereby any lower sheets
which may have been displaced are loosened and pushed back in line with the front
side of the pile and returned to the proper position.
S Figure represents the main frame of a printing press, s the impression
cylinder provided with the usual grippers s', s the feed board and s³ the vertically
movable front guides. represents the carrying tapes whereby the sheets are
carried from the pile in the feeding machine to the front guides of the press and
which pass with their receiving portions around the receiving tape roller N
arranged in front of the feeding machine, thence forwardly with their upper
portions and downwardly around a delivery roller so, theuce backwardly and down-
wardly around tightening rollers, then forwardly and downwardly around an
intermediate roller s', then backwardly and upwardly to the place of beginning.
8 represents the tape frame which consists of two longitudinal side bars ss, a
cross bar connecting the front ends of the side bars, a cross bar sll connecting
the rear ends of the side bars, and arins & supporting the rear cross bar from the
shaft of the receiving roller. The delivery roller is journalled in bearings 3 which
are capable of lengthwise adjustment on the side bars so that the delivery portion
of the tapes can be moved toward aud from the front guides of the press. The
intermediate roller is journalled in bearings which are also capable of length-
wise adjustment on the side bars for taking up a portion of the slack in the tapes
upon adjusting the delivery roller. Each of the tightening rollers is mounted on
an arm which is adjustably secured to the rear cross bar so that upon turning
this arm the tape passing around the respective roller can be individually
tightened. are pressure rollers which press the side portions of the sheets down
upon the delivery roller so as to increase the carrying effect of the latter. These
rollers are mounted on a transverse shaft s journalled in bearings 18 which are
secured to posts 8 arranged on the bearings of the delivery roller.
2021 represent the two sections of an adjustable dead board or supplemental
feed board which bridges the greater portion of the space between the delivery
roller and the feed board. The front section 20 which is conveniently made of
wood, is secured to the upper side of the front cross bar of the tape frame while
the rear sections, which is conveniently made of metal, overlaps the front section
and is secured with its rear portion to a cross bar which is capable of lengthwise
adjustment on the side bars by means of clamps $23. Upon adjusting the delivery
roller toward or from the front guides the rear section of the dead board is
adjusted backward or forward accordingly, so as to properly bridge the space
between said roller and the feed board. In feeding sheets to a lithographic or
other color printing press it is usually desirable to so adjust the delivery roller
that it just clears the rear edge of the sheet when the front edge of the latter is
in engagement with the front guides thereby avoiding displacement of the sheet
which would destroy the register of the same. In feeding sheets to a typographic
printing press where the same nicety of register is not usually required the delivery
roller may be so adjusted that the delivery portions of the tapes remain in
engagement with the rear portion of the sheet after the latter bears with its front
edge against the front guides, whereby the tapes tend to constantly feed the sheet
forward and hold the same against the front guides. By adjusting the delivery
roller on the side bars only so much of the tapes may be retained in engagement
with the sheets as may be necessary to hold the sheets properly against the front
guides without turning over the front edges of the sheet.

page_text: In order to prevent the sheets from being fed by the tapes against the front
guides with a force which would turn over the front edge of the sheets, the
speed of the latter is retarded during the last portion of its forward movement
by the following means:-
T Figure 1 represents a retarding roller whereby the sheets are retardel
during the last portion of their movement toward the front guides, and which is
arranged between the front dead board section and the feed board. This roller is
arranged below the path of the sheet and has a movement toward and from the
same. tt represent abutting rollers which are arranged above the path of the
sheet, over the end portions of the retarding roller so as to bear only upon the edge
portions of the sheets. These abutting rollers are arranged above the space
between the dead board and the feed board and the retarding roller is arranged in
that space. The retarding roller is mounted on a transverse shaft t¹ which is
journailed in the front ends of horizontal rock arms t². The rear ends of the
latter are secured to a transverse rock shaft t3 which is journalled in bearings t¹ on
the feed board and provided at one end with an upright rock arm to Figure 25.
The abutting rollers are secured to a transverse shaft te which is pivoted at its
ends in bearings 7 secured to posts 8 on the feed board. The retarding roller
rotates at a slower peripheral speed than the lineal speed of the tapes and the
sheet carried thereby and is raised at the proper time and pressed against the
sheet, finding its abutment on the abutting rollers, thereby reducing the speed of
the sheet, after which the roller is lowered to its normal position. The mechanism
for raising and lowering the retarding roller aud for rotating it is constructed as
follows:-
Figures 4 and 13 represents a rock lever pivoted on the frame of the feeding
mechanism and 'having its lower arm connected with the free end of the upright
rock arm of the rock shaft by a rod 10 Figures 4 and 25. The retarding roller is
raised by a cam t" Figure 13 secured to the driving shaft of the feeding mechanism
and bearing against the upper arm of the rock lever. The retarding roller is
lowered when released by the cam, by a spring 12 Figure 25 secured to the feed
board and the upright rock arm. A continuous rotary movement is imparted to
the retarding roller in the direction of the arrow, Figures 1 and 25, with a
peripheral speed less than the lineal speed of the tapes, by a chain belt t¹³ passing
around sprocket wheels t¹¹ secured respectively to the shaft of the tape delivery
roller and the shaft of the retarding roller, sufficient slack being allowed in the
chain belt to permit of the necessary swinging movement of the retarding roller.
While the sheet is being carried by the tapes toward the front guides the
retarding roller is at first held below the surface of the dead board and feed board,
so that the sheet can move freely forward between the retarding and abutting
rollers. After a portion of the sheet has passed the retarding roller the latter
rises and presses the sheet against the abutting rollers, whereby the speed of the
sheet is reduced from the high speed of the tapes to the low speed of the retarding
roller, thereby preventing the sheet from striking the front guides with sufficient
force to turn the front edge or rebound. After the sheet has been fed against the
front guides the retarding roller is lowered to clear the sheet and the latter is
registered ou one of its side edges. For this purpose both sides of the feed board
are provided with a registering device so that the sheet can be registered from
either side, each of said registering devices being constructed as follows:
U Figure 28 represents a transversely reciprocating slide which is guided on
ways u formed on an open frame secured to the feed board and provided on the
upper side of its inner end with a lower gripper jaw u' which projects upwardly.
Figure 26 represents an elbow lever pivoted on lugs arranged on the outer
portion of the slide and provided on its inwardly projecting horizontal arm u³ with
au upper gripper jaw u which is adapted to co-operate with the lower jaw. The
other arm of the elbow lever is bifurcated and extends downwardly through an
opening in the outer portion of the slide. u' represents a reciprocating
actuating rod guided in eyes us on the guide frame and provided with a sleeve u

page_text: which is adjustably secured thereto by a set screw 10. This sleeve is provided
on opposite sides with notches which receive the bifurcated arm of the elbow
lever. During the inward movement of the actuating rod the elbow lever is turned
on its pivot without disturbing the slide until its lower arm strikes the inner end
of the opening us thereby opening the gripper after which the slide and lever move
inwardly together until the actuating rod reaches the end of its inward movement.
During the subsequent outward movement of the rod the elbow lever turns
on its pivot without affecting the slide until the upper gripper jaw engages
with the lower jaw after which the slide and lever move outwardly together
to the end of the outward movement of the actuating rod. The outward
movement of the gripper is limited by a stop which consists preferably of
a block adjustably secured to one of the ways u by a set screw 2413
Figure 28 represents a registering plate resting on the slide and provided
with an upright registering face or guide against which the side edge
of the sheet is registered. This plate is provided with a slot u16 through
which the lower gripper jaw projects and is capable of transverse adjustment
with reference to the feed board so that the registering face can be adjusted for
correctly registering the sheets. This adjustment is preferably effected by a screw
adjusting rod u connected at one end with the registering plate and extending
with its opposite screw threaded end through eyes us u18 on the outer portion of the
slide and a thumb nut which is arranged between said eyes and which receives
the screw threaded portion of the adjusting rod. Upon turning this thumb nut,
the side guide is shifted transversely and after adjustment the side guide is held in
position by means of a clamping screw u20 Figure 27 passing through a slot u
in the registering plate and engaging in a screw threaded opening in the slide.
While the gripper is in its outer position the upper jaw is open and the sheet
passes with its marginal portion between the upper and lower jaws in the usual
manner. During the inward or forward movement of the gripper the side guide
strikes the side edge of the sheet and during the subsequent outward or backward
movement of the gripper the latter closes upon the sheet, while the sheet rests
against the side guide, and carries it outwardly in this position until the gripper
reaches the end of its outward movement. The actuating rod is next moved
inwardly sufficiently to open the upper jaw and release the sheet without affecting
the slide and registering guide, the gripper now remains in its outer open position
until the registered sheet has been withdrawn by the grippers of the press cylinder
and another shect has been fed between the registering grippers and against the front
guides. A curved guide plate u" Figure 28 is preferably secured to the registering
plate in front of the gripper jaw so as to facilitate the passage of the sheet between
the gripper jaws. When it is desired to shift the side registering grippers for
registering sheets of different widths, the coarse or principal part of the adjustment
is effected by shifting the stop block u and the sleeve u together with the gripper
approximately into position for registering the sheets after which the side guide
of the registering plate is finely and accurately adjusted to the proper position by
turning the thumb nut u. The actuating rods of both side registering devices
are coupled so as to operate in unison and are reciprocated by the following
means:
u23 Figure 25 represents a rock arm having its free end arranged between two
collars 24 on the inner end of one actuating rod, and 2 is a rock lever
having one of its arms arranged between two collars u on the other actuating rod
while its other arm is connected with the rock arm u by a link u whereby the
actuating rods are caused to move simultaneously outward and inward. The
actuating rods are moved inwardly by means of a spring us which is secured at
one end to one arm of the rock lever and with its other end to a stationary
part of the feed board. 20 is a rock lever which is pivoted on the frame of the
feeding mechanism and which has its lower arm connected with one of the actuating
rods by a rod 30 connected with the lower arm of the rock lever and a chain usi
Figures 1 and 25 extending from the rod to the actuating rod and passing around

page_text: a roller arranged on the feed board. The outward movement of the actuating
rod and the grippers connected therewith is produced by a cam 33 mounted on the
driving shaft of the feeding mechanism and engaging with the upper arm of the
rock lever u. For the purpose of rendering the feeding and printing mechanism
inoperative when more than one sheet of paper is fed or if a sheet is incorrectly
presented to the front guides of the press an electric tripping mechanism is provided
which is constructed as follows:-
V Figure 1 represents the driving shaft of the printing press and a sprocket
wheel mounted loosely on one end thereof and connected by a chain belt V₁ with
the sprocket wheel n of the feeder. The sprocket wheel is connected with or
disconnected from the press shaft by any suitable coupling mechanism the preferred
form being constructed as follows: is a dog pivoted on the sprocket wheel and
provided at its front end with a hook which is adapted to engage with a coupling
fug formed on a collar which is secured to the press shaft. is a spring
whereby the hook of the dog is yieldingly held in engagement with the lug v2.
is a shifting disk pivoted on the sprocket wheel and provided with a pin which
engages with a slot in the rear arm of the dog. Upon turning the shifting disk
in one direction or the other the dog is moved into or out of engagement with the
lug v².
v is a trip lever whereby the shifting disk is turned for disengaging the
dog from the coupling lug v2. This lever is pivoted on the main frame and is
adapted to engage with its upper arm against a pin 8 on the shifting disk for
turning the latter and disengaging the dog from the coupling lug. During the
normal operation of the paper feeder the upper arm of the trip lever is arranged
outside of the path of the pin as the latter rotates with the sprocket wheel v so
that the dog is permitted to remain in engagement with the coupling lug. is an
elbow lever pivoted on the main frame and having one of its arms connected with
the lower arm of the trip lever by a rod v10. is a transverse rock lever pivoted
on the main frame and connected with its outer arm to the other arm of the elbow
lever by a rod 13. 13 is a rock lever pivoted on the main frame and connected at
its rear end with the inner arm of the transverse rock lever v. 15 Figures 1 and 2
represents a hand crank or rock arm provided with a cam v and mounted loosely
ou a transverse shaft 7. This cam engages with a roller on the front arm of the
rock lever. Upon swinging the hand crank v forwardly as represented in dotted
lines, Figure 1, the cam depresses the front arm of the rock lever and this movement
is transmitted by the intermediate mechanism to the trip lever for holding the
same out of the path of the pin of the shifting disk. Upon swinging the hand
crank rearwardly, as shown in full lines in Figures 1 and 2, the trip lever is turned
so that its upper arm stands in the path of the pin 8 whereby the latter, upon
striking the trip lever causes the shifting disk to be turned and the dog to be
disengaged from the coupling lug whereby the operation of the paper feeder is
arrested regardless of whether or not the press continues its operation. The
front arm of the rock lever 3 is caused to follow the cam 7 by a spring 18 secured
with its ends to the rear arm of said lever and the main frame. 10 represents a
hand crank or rock arm secured to the shaft which latter is provided with a
cam. The cam 20 is arranged to engage a lug or roller on a rod v pivoted
at its upper end to the thrust bar 23 provided with the notch 2 and operating to
oscillate the arm 25 which in the well known way serves to start the cylinder
periodically at the proper time. When the crank is thrown forward the rod 2
drops so that the bar 23 engages with the arm 26, but when the crank is thrown in
the opposite direction the cam 20 lifts the, bar 23 out of engagement and the
printing operation is discontinued although in the style of press shown in the
drawings the type bed continues to reciprocate as is well known. It is not
considered essential to show or describe more fully than has been done, the
various elements of the printing press for they are old and well known in
the art.
The crank carries a spring bolt Figures 1 and 2 normally engaging a
socket in the crank but arranged to be disengaged therefrom by a handle so

page_text: that these cranks may be operated simultaneously or dissimultaneously as desired.
The shaft carries a crank to which is connected one end of a suitably
supported thrust rod a Figure 1 actuated by a spring or other suitable means
to throw the shaft 7 and crank and backward into the position shown in
Figures 1 and 2. When the crank or both the cranks 18 and 19 are thrown
forward by hand the shaft 7 is turned and the crank and rod are pushed
back against the spring ". The cranks and s, it will be seen, operate separate
stop mechanisms for the feeding and printing mechanisms which they respectively
control, and when thrown forward by hand put these feeding and printing
mechanisms into operation. The thrust rod e, by means of the spring, however,
give these stop mechanisms a normal tendency to discontinue the operations which
they control. In order to hold the stop mechanism against this normal tendency
an electric circuit is provided, including any suitable translating device but prefer-
ably a magnet 33, Figures 1 and 3. This magnet is arranged on the frame of the
press and operates a latch or armature 33 Figure 3 adapted to engage the
crank when thrown forward against the stop . One end of the coil of
the magnet is connected by a wire with one pole of an electric generator
and the other end of the coil is preferably connected with the metallic frame of the
machine by a wire 37.
On each side of the tape mechanism there is arranged an automatic gauge
or sheet detecting device whereby the passage of more than one sheet is detected
and whereby the operation of the feeder and press is controlled, each of said
automatic gauges or detecting devices being constructed as follows:-
The
W Figures 30, 31 represents a bracket arranged underneath the outer or side
tape and secured to the intermediate cross bar so as to be capable of transverse
adjustment thereon to suit the width of the tape mechanism. This bracket is
provided on its outer side with an upwardly and inwardly projecting arm w which
overhangs the outer or side tape. ' represents a roller which is arranged below
the path of the sheets, preferably on the inner side of the side tape and which
forms the lower member of the automatic gauge or detector. The gauge roller is
provided on its outer side with a driving roller to which is of slightly smaller
diameter and upon which the outer tape runs for driving it. The gauge and
driving rollers are journalled transversely in bearings formed in the front portion
of the bracket and are constantly rotated by the tape in the direction in which the
sheets move, as indicated by the arrows in Figure 30. For the purpose of giving
the tape a better hold upon the driving roller, the latter is pressed against the
driving roller by a pressure roller w arranged above the tape. The gauge roller
is of such diameter that its uppermost portion is in line with the top of the tape,
thereby forming a level support for the sheets which pass over the same.
pressure roller is journalled in a bifurcated arm w which is mounted on the
overhanging arm of the bracket, which arm is provided with a transverse pin,
shown in dotted lines in Figure 31, to which the arm w is secured by a set screw.
represents a movable detecting device which forms the upper member of the
automatic gauge and is arranged with its face over the lower gauge roller at such
a height that only one sheet can pass between these two members without moving
the upper member. The latter, as shown, has the form of a depending segment
and is journalled transversely with its upper portion by a pin w on the front arm
of an adjusting lever u. This lever is pivoted transversely on the inner end of the
overhanging arm of the bracket by a pin and its rear arm wo is arranged
between an upper and a lower lug to" w formed on the inner end of the overhanging
arm. Upon turning the rock lever the segment can be raised or lowered for
adjusting the space between the same and the gauge roller to suit the thickness of
the sheets of paper. " represents a spring whereby the segment is yieldingly held
in a depressed position and which is arranged between the lower lug w and the
rear arm of the adjusting lever. The latter is turned for raising the seginent by
means of an adjusting screw " arranged in the upper lug to" and engaging against
the rear arm of the lever. In the normal position of the segment the latter depends
с

page_text: from its supporting pin by gravity and has about the central portion of its face
arranged over the gauge roller, as shown in full lines in Figure 30. The space
between the segment and the roller is so adjusted that only a single sheet can pass
freely between these parts without moving the segment. If two or more sheets are
carried between the roller and segment, the increased thickness of paper causes the
paper to bind against the faces of the gauge roller and segment with sufficient
friction to turn the segment on its pivot by the continuing forward movement of
the sheets. This movement of the segment is utilized for closing the electric
circuit, therely uncoupling the clutches and stopping the operation of the machines.
tol is a movable contact secured to the upper portion of the segment and forming
one of the terminals of the generator because it is in electric communication with
the same metallic parts of the machine which connect with the wire 7 of the
magnet coil. represents an insulated stationary contact connected with the
other pole of the generator by a wire to and secured to the overhanging arm so as
to project into the path of the movable contact.
In the normal depending position of the segment its contact is out of engagement
with the upper contact, as shown in full lines in Figure 30 and it remains in this
position as long as only one sheet is carried forward by the tapes between the gauge
roller and the segment. In this position of the parts the circuit is broken and the
electro magnet is de-energized, thereby permitting the clutches to remain coupled
for driving the feeding mechanism and the printing press. When two or more
sheets of paper are carried by the tapes between the roller and segment the latter
is turned until its contact comes into engagement with the upper stationary contact,
as shown in dotted lines in Figure 30. This closes the electric circuit which causes
the electro magnet to become energized and attract the armature or latch thereby
releasing the cranks and 1 and arresting the operation of the feeding and
printing mechanism. The sheets of paper continue in their course while turning
the segment until the feeder and press are stopped which prevents the next
following sheet which is fed by the feeding machine upon the tapes from coming in
conflict with the previous sheet and injuring the same. The parts of the detecting
device and the clutch are so organized that the tripping mechanism is operated
before the sheets have reached the front guides of the press, thereby preventing the
sheets from being drawn partly around the cylinder and spoiled. When the surplus
sheet or sheets have been removed the segment drops hack to its normal position by
gravity and the machine is again started by restoring the cranks by hand. The
distance between the two contacts is such that when a sheet of paper having a lump
or thickened portion passes between the roller and segment, the latter will be
turned, but not sufficiently to bring the contacts into engagement and the segment
will drop back into its normal position after the lump in the sheet has passed,
thereby preventing the magnet from being operated when the abnormal thickness in
the sheet does not extend over a considerable portion of the sheet. When the
advancing sheet has a turned over edge, the same action takes place, that is to say,
the abnormal or double thickness of paper sets the segment in motion but the
extent of movement is not ordinarily enough to bring the contacts together and call
the stop mechanism into action, so that in this case, ordinarily, the sheet is allowed
to pass on to the press. When, however, the abnormal thickness of paper entering
between the two members of the automatic gauge is of such length that the segment
is not released before the contacts are brought together, then the stop mechanism
is called into action, and the machine is stopped. Abnormal thickness in this
connection means more than one sheet of paper or other material operated upon
and also to a single sheet having a lump or other portion of abnormal thickness
and to any other condition of thickness greater than that for the passage of which
the gauge has been constructed or adjusted. The spring 3 which bears against the
supporting lever of the segment renders the latter slightly yielding away from
the gauge roller, so that the segment can rise slightly when more than one sheet or
a sheet with thickened portions Jasses between the roller and segment.
It is not necessary that the upper member of the automatic detector or gauge

page_text: should be a segment or that it should be returned to its normal position by gravity.
For instance, as shown in Figures 32 and 33, the upper member may be a
roller wwhich is returned to its normal position by a spring w" which holds the
roller in its normal position against a stop to on the supporting bracket, the roller
being provided with a projection to which bears against said stop. The device
which detects any inaccuracies in the feeding of the sheets to the front guides or
the failure to feed a sheet is constructed as follows:
X Figure 25 represents a stationary metallic contact which is arranged centrally
on the front edge of the feed board transversely in line with the front guides of the
press and which is connected with the metallic frame of the press so as to form a
terminal of that pole of the electric generator to which the wire Figure 1 is
Figures 1 and 25 is a movable contact capable of moving toward and
from the stationary contact and connected with the other pole of the generator by
a wire a. The movable contact is carried by a rock arm which is mounted on
a transverse rock shaft a. The latter is jouroalled in bearings on the press frame
and is turned by a spring for raising the movable contact. The latter is
periodically moved toward the stationary contact by a rock lever a pivoted on the
feeder frame, a rod a connecting the lower arm of the rock lever with a rock
arm on the rock shaft and a cama mounted on the driving shaft of the
sheet paper feeder and engaging with the upper arm of the rock lever.
Every time a sheet has been delivered to the grippers of the cylinder the rock
arm carrying the upper contact inoves toward and from the lower contact. If the
sheet has been properly presented to the grippers it covers the lower contact and
serves as an insulator to prevent the circuit from being closed during the descent
of the upper contact upon the lower contact thereby preventing the magnet from
becoming energized and releasing the crank arm and . In the event of no
sheet being fed to the grippers of the cylinder or of a sheet being improperly
presented to the grippers so as to leave the lower contact uncovered the upper
contact in descending upon the lower contact will close the circuit thereby
energizing the magnet. The instant this takes place the latter attracts the
armature or catch and withdraws the shoulder of the same from engagement with
the crank or rock arm thereby releasing the latter together with the rock arm
and permitting the spring to swing these arms backward for simultaneously
stopping the operation of the feeder and press.
The modification of the trip mechanism shown in Figures 34-50 is constructed
as follows:-
In Figure 34 is represented in dotted lines a portion of an ordinary form of
reciprocating bed and cylinder press, the operation of the impression cylinder
being controlled by a clutch Y adapted to be actuated by a clutch fork y while
the operation of the feeding devices is controlled by another clutch Y which
operates the pins of the tumbler box in the usual way and which is adapted to be
actuated by an arm y. The clutch fork y is carried by a rock shaft having an
army connected by a rod y' to a vertically reciprocating slide y which latter is
guided on the main frame and acted upon by springs y tending to raise it. The
rock shaft y has another army which is connected by a rod y to a bell crank
lever y, the latter being connected by a rod yo to an arm y" on a horizontal rock
shaft y. The rock shaft y12 has another arm y18 connected by a rod y¹ to an
arm ys on a rock sbaft yle which latter carries the arm y'. Both clutches are thus
adapted to be operated in unison and the parts are so arranged that when the
slide is raised by its spring the clutches are engaged and the impression cylinder
and feeding devices are in operation, but when said slide y is depressed the clutches
will be disengaged and the impression cylinder and feeding devices are rendered
inoperative.
On the slide y is a pivoted catch or trigger y" which is normally held in the
retracted position shown in Figure 46 by means of a spring ys and to this trigger
is pivoted a supplementary trigger or toe y", the upper end of which is normally
held in a retracted position by means of a spring y, the toe y however being

page_text: capable of a limited independent movement on the trigger y" to an extent limited
by the contact of said toe with the stop y" on said trigger. To suitable guides on
the same frame which carries the slide y is adapted another slide y" to which
during the operation of the press, a constant vertical reciprocation is imparted by
reason of the engagement of an anti-friction roller " Figure 46 at the upper end
of the upper slide with a cam groove y" Figures 34 and 40 on the horizontally
reciprocating bed of the press. The lower end of the upper slide y" is provided
with an inclined or bevelled face y which is adapted to engage with the toe or
trigger of the lower slide for coupling the two slides together. A pin "* Figure 49
on the upper slide is connected by a red y" to a horizontally movable slide 8
carrying an electro magnet y30 hence as the slide y" reciprocates in a vertical plane
the slide y will be reciprocated in a horizontal plane and the magnet y will be
caused to approach and recede from the toe y" which latter serves as an armature
for the magnet. The upper slide is preferably connected with the main frame by
a spring ya which constantly tends to raise the upper slide and normally holds the
slide in its highest position so that the roller y23 upon leaving the cam groove y
during the forward movement of the bed will be in the proper position to again
engage with said groove during the subsequent backward movement thereof.
Suitably pivoted adjacent to the impression cylinder is a detector or guide
lever Z (see Figures 37 and 40), this detector lever consisting of an arm provided
at its front end with a downwardly projecting front guide z. is a plate which
is pivoted with its upper end to the front side of the front guide and which is
provided with a finger 2 projecting rearwardly through an opening in the guide z
and normally resting in contact with an eye on the lower end of a bolt . The
upper end of this bolt is threaded and engages with a nut z mounted between two
lugs on the back of the front guide z so that by operating said nut the bolt can
be adjusted vertically as desired. The electro magnet 70 Figure 36 is contained
in a circuit of which the bolt 23 constitutes one terminal and the plate the other
terminal, as shown in Figure 36, hence whenever the finger of the plate is in
contact with the eye of the bolt the circuit will be completed and the magnet
will be rendered active but whenever the plate 21 is pressed inward towards the
depending portion of the arm z the finger will be lifted from contact with the
eye of the bolt 3 and the circuit will be broken and the magnet thus rendered
inactive. The movement of the electro magnet toward and from the armature of
the trigger is so timed that it stands in working proximity to the trigger when a
sheet is supposed to be present at the front guide and the circuit is expected to be
broken by the engagement of the front edge of the sheet against the pivoted
plate but the magnet is removed from the vicinity of the trigger at all other
times. When, therefore, a sheet of paper is properly fed to the impression
cylinder the front edge of the sheet of paper will engage with the lower portion
of the plate a' and move the same forward, thereby breaking the circuit and
preventing the magnet, which at this time stands close to the trigger, from
attracting the latter. In this manner the reciprocating magnet will always be
de-energized as it approaches the trigger during the normal operation of the press
and the toe and trigger will both remain retracted out of the path of the recipro-
cating upper slide so that the lower slide remains at rest in its elevated position
and holds the clutches of the impression- cylinder and feeding device in their
coupled position. If no sheet has been presented to the front guide or if a sheet 1
has not been placed properly against the front guide so as to break the circuit the
magnet remains energized as it approaches the trigger and attracts the armature
of the same, thereby carrying the upper end of the trigger underneath the inclined
or bevelled lower face y25 of the upper slide, as shown in Figure 47. The outward
movement of the toe y which is begun by the auction of the magnet y20 is continued
by the action of the bevelled lower end of the slide y and such movement is
communicated to the trigger y, as shown in Figure 48, owing to the fact that
when the toe y is moved to the position shown in Figure 47 it has a rigid hearing
upon the shoulder " of the trigger y" and hence becomes in effect a rigid

page_text: projection of said trigger and imparts to the latter any outward movement which
it may received. After the trigger has been directed by the magnet underneath
the inclined or bevelled face of the upper slide, the latter during its descent
moves the trigger laterally without effecting the lower slide, until the trigger
engages with a shoulder or stop y at the base of the incline after which the
movement of the upper slide is transmitted to the lower slide and from the latter
by the intermediate mechanism to the clutches for tripping the impression cylinder
and feeding devices and rendering the same inoperative. The arm y' which
connects with the gripper clutch Y¹ acts upon the pins which enter the tumbler
box on the end of the gripper shaft in a well known manner. The fork y connects
with the clutch y' of the bed and thereby operates the ordinary trip mechanism
which is commonly used on two revolution presses and which sets in motion
mechanism which lifts the cylinder so that the type will not touch the paper.
When the mechanisin is organized as hereinafter described the press continues to
run but refuses to print or to take the sheet from the feed table until it is so fed
that the sheet touches the guides and breaks the circuit.
As the upper end of the trigger y" is moved outward by the action of the
bevelled lower end of the upper slide the magnet is withdrawn by the retraction of
the horizontal slide, said magnet resuming its normal position as the upper slide
rises. The magnet might he strong enough to pull the trigger y" directly into
engagement with the lower end of the upper slide but by the use of the lighter
toe y Figures 46-49 the work of the magnet is materially lessened and the
apparatus is rendered operative with the use of a much weaker current than would
otherwise be required.
In Figures 41-45 I have illustrated a modified form of circuit breaking device
in which a spring plate Z' is mounted upon the front side of the front guide and
carries at its lower end an inwardly projecting hooked contact finger which is
adapted to contact with a terminal plate on the back of said depending portion
of the arm. Each of the plates Z' and 2 is preferably made of spring metal and
secured at its upper end to the front guide by pins a arranged vertically in line.
The lower end of the front plate is adjusted toward and from the lower end of the
rear plate by an adjusting screw arranged in a screw threaded opening in the
front guide and engaging with the spring plate Z' between its supporting pins, so
that by turning the adjusting screw in the proper direction, the portion of the plate
between the pins will be deflected more or less and the lower end of the plate
shifted accordingly. The lower end of the rear spring plate is in like manner
adjusted by an adjusting screw " engaging with a screw threaded opening formed
in the rear spring plate between its supporting pins and engaging with its end
against the front guide. When the lower end of the plate Z' is carried forwardly
by the action of the paper, the contact plates will be separated and the circuit
broken, but when the lower end of the plate Z₁ is permitted to remain projected
the plates 2 2 will remain in contact and the circuit will be complete.
The detecting device may be so located that its trip plate will engage with the
sheet of paper at any desired point, thus if a single detector is used it may be
located midway between the opposite edges of the sheet or if a pair of detectors are
used one may be located near each edge of the sheet and the circuit may pass through
both detectors so that buth detector plates will have to be depressed in order to
break the circuit, the result in this case being that the press will be tripped either
when no sheer is presented for the action of the printing devices or when the sheet
is so crooked that both ends of the same will not act simultaneously upon the
circuit breakers.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed, as communicated to ine by
my foreign correspondents, 1 declare that what I claim is :-
1. The combination with the main frame and the sheet feeding devices, of a
vertically movable pile support arranged in the main frame a longitudinal track

page_text: capable of being shifted transversely on said support, an adjusting device whereby
said track can be shifted transversely on said pile support and a removable feed
table resting on said track, substantially as set forth.
2. The combination with the buckling finger and mechanism whereby the same
is moved backward and forward, of a lifting rock arm, a cam engaging with said
rock arm, a rod connected at its upper end with said arm and passing loosely with
its lower end through the opening in the buckling finger, a spring interposed
between said finger and rod, and a stop arranged on said rod below the buckling
finger, whereby said rod can perform the double function of compressing the spring
for increasing the downward pressure of the buckling finger and of lifting the
buckling finger, substantially as set forth.
3. The combination with the buckling finger having a forward and backward
movement, of a buckling foot adapted to hear upon the pile during the forward
movement of the buckling finger so as to cause the shect to be buckled between
said finger and said foot, and mechanism whereby a vertically reciprocating and a
horizontally rocking movement is imparted to the buckling foot and whereby said
foot is raised and swung rearwardly, away from the pile, to allow the buckle to
extend beyond the buckling foot and then swung forwardly and down upon the
pile below the buckled portion of the sheet, substantially as set forth.
4. The combination with the buckling finger having a forward and backward
movement, of a buckling foot adapted to bear upon the pile during the forward
movement of the buckling finger so as to cause the sheet to be buckled between
said finger and said foot, a vertically reciprocating spindle carrying said foot and
provided with a gear wheel, and a reciprocating gear rack meshing with said gear
wheel and imparting a horizontally rocking movement to said spindle, substantially
as set forth.
5. The combination with the buckling finger, of a buckling foot provided with
an elongated gear wheel arranged to turn in a horizontal plane, a reciprocating
gear rack meshing with said gear wheel, a cam actuating said gear rack, a lifting
rock arm connected with the buckling foot and arranged to move the same
vertically, and a cam whereby said rock arm is actuated, substantially as set
forth.
6. The combination with the pile retaining finger provided with an upwardly
extending stem and a vertically movable rock arm whereby the finger is elevated,
of a lifting rod connected with the rock arm and means whereby said rod is coupled
with the stem of the finger during the upward movement of the lifting rod, for
lifting the finger, substantially as set forth.
7. The combination with the carrying head supporting the buckling devices aud
the driving shaft, of a supporting sleeve connected with the carrying head so as to
turn therein but held against lengthwise movement therein and mounted on said
shaft so as to slide thereon and turn therewith, and cams secured to said supporting
sleeve and operating the buckling devices, substantially as set forth.
8. The combination with the vertically movable pile support and the elevating
mechanism thereof provided with ratchet wheel, of a pawl carrier provided with an
actuating pawl engaging with the ratchet wheel, a reciprocating actuating rod
capable of moving with said carrier or independent of said carrier, a regulating
rock shaft provided with a detent pawl which is adapted to engage said carrier or
to clear the same, and a vertically movable regulating foot adapted to bear upon
the pile and connected with said rock shaft, substantially as set forth.
9. The combination with the vertically movable pile support and the elevating
mechanism thereof provided with a ratchet wheel, of a pawl carrier provided with
an actuating pawl engaging with the ratchet wheel, an actuating rod provided with
a book engaging with a pin on said carrier, a regulating rock shaft provided with a
weight lever, a detent pawl mounted loosely on said shaft and adapted to engage
with said carrier or to clear the same, means connecting said weight lever with said
detent pawl and a vertically movable regulating foot adapted to bear upon the
pile and connected with said rock shaft, substantially as set forth.

page_text: 10. The combination with the vertically movable pile support and the elevating
mechanism thereof provided with a ratchet wheel, of a pawl carrier provided with
an actuating pawl engaging with the ratchet wheel, an actuating pawl engaging
with the ratchet wheel, an actuating rod engaging with said carrier, a regulating
rock shaft provided with a detent pawl adapted to engage with said carrier or to
clear the same, a vertically movable regulating foot adapted to bear upon the pile,
a rock arm connected with said rock shaft, a shifting rod connected with said rock
arm and with the regulating foot, a rock lever engaging with said shifting rod, a
cam engaging with said rock lever for lifting the regulating foot, and a spring for
depressing said foot, substantially as set forth.
11. The combination with the vertically movable pile support, and the elevating
mechanism thereof provided with a ratchet wheel, of a pawl carrier provided with
an actuating pawl engaging with the ratchet wheel, a regulating rock shaft
provided with a detent pawl adapted to engage with said pawl carrier or to clear
the same, a vertically movable regulating foot adapted to bear upon the pile, a rock
arm connected with said regulating rock shaft, a shifting rod connected with said
rock arm and with said regulating foot, and a stop device whereby an effective
movement of said shifting rod is prevented when the regulating foot is supported
at the normal height of the pile, substantially as set forth.
12. The combination with the vertically movable pile support and the elevating
mechanism thereof provided with a ratchet wheel, of a pawl carrier provided with
an actuating pawl engaging with the ratchet wheel, an actuating rod engaging
with said rock plate, a regulating rock shaft provided with a detent pawl adapted
to engage with said carrier or to clear the same, a vertically movable regulating
foot adapted to bear upon the pile, a spring for depressing the regulating foot, a
rock arm connected with said rock shaft, a shifting rod connected with said rock
arm and with said regulating foot, front and rear tappets secured to the shifting
rod, a stop lug arranged in rear of the front tappet, a rock lever provided with
projections adapted to engage with the shifting rod and with the rear tappet, and a
cam for actuating said rock lever, substantially as set forth.
13. The combination with the feed table supporting the pile of sheets and a
buckling device having a transverse movement with reference to the pile of sheets
and adapted to produce a transverse buckle in the front portion of the top sheet, of
a longitudinally reciprocating carrying gripper arranged in front of the point where
the sheet is buckled and adapted to seize the margin of the buckled portion of the
sheet and remove the sheet from the pile, substantially as set forth.
14. The combination with a transversely moving buckling finger adapted to
engage with the front portion of the top sheet and form a transverse buckle in the
same and a buckling foot against which the sheet is buckled, of a longitudinally
reciprocating carrying gripper arranged between the buckling finger and the
buckling foot and adapted to seize the front margin of the buckled portion of the
sheet and remove the same from the pile, substantially as set forth.
15. The combination with a transversely moving buckling device adapted to
engage with the front portion of the top sheet and form a transverse buckle in the
same, of a longitudinally reciprocating carrying gripper, having its upper jaw
arranged over the top sheet, and forming a stop against the underside of which the
buckled portion of the sheet abuts and having its lower jaw adapted to clamp the
buckled portion of the sheet against the upper jaw preparatory to removing
the sheet from the pile, substantially as set forth.
16. The combination with the gripper head having a forward and backward
movement and provided with a fixed gripper jaw, of a movable gripper jaw pivoted
on said head and provided with a gear segment, a gear rack having a reciprocating
movement in said head independent of the fixed gripper jaw and engaging with
the segment of the movable jaw, and mechanism whereby said gear rack is actuated,
substantially as set forth.
17. The combination with the gripper head having a forward and backward
movement, of a fixed gripper jaw arranged on said head, a inovable gripper jaw

page_text: pivoted on said head and provided with a gear segment, a gear rack arranged on
said head and engaging with said segment, a spring whereby the gear rack is
moved forwardly in said head, and a stop whereby the gear rack is moved
rearwardly in said head, substantially as set forth.
18. The combination with the gripper head having a forward and back ward
movement, of a fixed gripper jaw arranged on said head, a movable gripper jaw
pivoted on said head and provided with a gear segment, a gear rack arranged on
said head and engaging with said segment, a spring whereby the gear rack is
moved forward in said head, a stop whereby the gear rack is moved rearwardly
in said head, a spring bolt whereby the forward movement of the gear rack is
arrested for holding the gripper open, and a stop whereby the spring bolt is
withdrawn, substantially as set forth.
19. The combination with the gripper head having a forward and backward
movement, of a fixed gripper jaw arranged on said head, a movable gripper jaw
pivoted on said head and provided with a gear segment, a gear rack arranged on
said head and engaging with said segment, a spring whereby the gear rack is
moved forwardly in said head, a stop whereby the gear rack is moved rearwardly
in said head, a spring bolt whereby the forward movement of the gear rack is
arrested for holding the gripper open, an elbow lever engaging with the spring
bolt, and a stop adapted to engage with the elbow lever for disengaging the spring
bolt from the gear rack, substantially as set forth.
20. The combination with the feed table supporting the pile of sheets, of two
buckling devices whereby the front portion of the sheet is buckled at two points,
two longitudinally movable grippers adapted to seize the buckled portions of the
sheet and mechanism whereby one gripper is moved laterally with reference to the
other, before beginning the forward stroke of the grippers, whereby the front
portion of the sheet between the buckled portions is raised from the pile and the
sheet is thoroughly loosened before being removed from the pile, substantially as
set forth.
21. The combination with the feed table supporting the pile of sheets, of two
buckling devices whereby the front portion of the sheet is buckled at two points,
two grippers having a reciprocating forward and backward and a lateral movement
and adapted to seize the buckled portions of the sheet while the same rests on the
pile and a cam and rock lever whereby each gripper is moved away from the other
gripper before the grippers begin their forward movement, substantially as set
forth.
22. The combination with the feed table supporting the pile of sheets, of two
buckling devices whereby the front portion of the sheet is buckled at two points,
two gripper heads having a longitudinally reciprocating and a laterally oscillating
movement and provided with gripping jaws which grasp the buckled portions of
the sheet while the same rests on the pile and rock levers which are held against
longitudinal movement with the gripper heads and which are adapted to engage
with the gripper heads before the latter begin their forward movement and move
the gripper jaws of one head away from the gripper jaws of the other head,
substantially as set forth.
23. The combination with the feed table and the tape roller arranged in front of
the table, of a carrying head arranged above the feed table and capable of
transverse adjustment in the machine, a buckling mechanism arranged on said head,
and a vertically movable pressure roller also mounted on said head and adapted to
bear against the tape roller, substantially as set forth.
24. The combination with the tape roller and the carrying head of the buckling
mechanism, of a vertically movable pressure roller adapted to move toward and from
the tape roller, a lower elbow lever pivoted on said head and supporting the pressure
roller, a spring engaging with the lower elbow lever for lowering the pressure
roller, an upper elbow lever pivoted on said head and connected with the lower
elbow lever, and a lifting cam mounted on said head and engaging with the upper
elbow lever, substantially as set forth.

page_text: 25. The combination with the feed table and the buckling finger arranged over
the front portion of the pile, of a gripper arranged over the front portion of the
pile and a guard arranged over the pile in rear of the buckling finger and adapted
to hold the sheet out of contact with said finger while the sheet is being removed
from the pile by the gripper, substantially as set forth.
26. The combination with the buckling finger and its roller, of an abrasion
plate arranged in the path of said roller, substantially as set forth.
27. The combination with the carrying head and the buckling finger mounted
thereon and having a buckling roller, of an abrasion plate arranged above the
buckling finger and made vertically adjustable on the carrying head, substantially
as set forth.
28. The combination with the feed table supporting the pile of sheets, of a
buckling finger having a forward and backward movement and a cam constructed
to hold the finger down upon the pile during the first portion of its forward move-
ment, slightly raising the finger near the end of its forward movement, and then
lowering the finger upon the pile at the end of its forward movement, substantially
as set forth.
29. The combination with the feed table and the buckling device, of stationary
front guides which do not extend to the top of the pile, a movable front guide
which extends above the stationary guides, and mechanism whereby the movable
guide is moved toward and from the pile, substantially as set forth.
30. The combination with the feed table and the buckling device, of stationary
front guides which do not extend to the top of the pile, a movable front guide
which extends fabove the stationary guides, and a rock shaft upon which the
stationary guides are loosely hung and to which the movable guide is secured,
substantially as set forth.
31. The combination with the feed table and the tape mechanism arranged in
front of the table, of a transversely movable buckling device whereby a transverse
buckle is formed in the front portion of the sheet, a carrying gripper adapted to
carry the sheet from the pile to the tape mechanism and arranged in front of the
point where the sheet is buckled, and a front guide bearing against the front side
of the pile adjacent to the gripper and extending with its upper end above the top
of the pile, substantially as set forth.
32. The combination with the feed table and the tape mechanism arranged in
front of the table, of a transversely movable buckling device whereby a transverse
buckle is formed in the front portion of the sheet, a carrying gripper adapted to
carry the sheet from the pile to the tape mechanism and arranged in front of the
point where the sheet is buckled, a front guide bearing against the front side of the
pile adjacent to the gripper and extending with its upper end above the top
of the pile, and mechanism whereby the front guide is moved away from
the pile during the operation of buckling the top sheet and pressed against
the pile while the top sheet is being carried from the pile, substantially as set
forth.
33. In a paper feeding machine, the combination with the feed table supporting
the pile of sheets, of a buckling device arranged over the rear portion of the
table and adapted to buckle the rear corner of the sheet, a buckling device
arranged over the front portion of the table and adapted to buckle the front
corner of the sheet, and actuating mechanism connected with both of said buckling
devices and so timed that said buckling devices are operated successively, sub-
stantially as set forth.
34. In a paper feeding machine, the combination with the feed table supporting
the pile of sheets, of a rear buckling device adapted to engage with the rear corner
of the sheet and buckle the same during its forward movement and to be lifted
from the sheet at the end of its forward movement, a front buckling device adapted
to engage with the front corner of the sheet and buckle the same during its forward
movement and to be lifted from the sheet at the end of its forward movement, and
D

page_text: actuating mechanism connected with both front and rear buckling devices and so
timed that the rear buckling device is moved forward in contact with the top sheet
and then lifted therefrom while the front buckling devices remain inactive, after
which the front buckling device is moved forward in contact with the top sheet and
then lifted therefrom, substantially as set forth.
35. The combination with the feed board, the front guides and the tape
mechanism capable of adjustment toward and from the front guides, of a stationary
dead board or sheet support arranged between the tapes and the feed board and
composed of a front and a rear section, and a support for the rear section capable
of adjustment toward and from the front guides, substantially as set forth.
36. The combination with the feed board, of a transversely movable slide pro-
vided with gripper jaws, a side registering plate provided with a side guide and
capable of transverse movement on said slide, a transverse adjusting screw and nut
mounted on said slide and connected with said registering plate, and a clamping
screw passing through a slot in said plate and engaging in the slide, substantially
as set forth.
37. The combination with the feed board and the reciprocating actuating rod, of
a transversely movable slide provided with a lower gripper jaw on its inner
portion and with two eyes on its outer portion, an elbow lever pivoted on said slide
and having one of its arms connected with said rod while its other arm is provided
with an upper gripper jaw, a registering plate provided with a side guide and
arranged on said slide and an adjusting rod connected at one end with said plate
and arranged with its other screw threaded end in said eyes, a screw nut arranged
on the adjusting rod between said eyes and a clamping screw passing through a slot
in said plate and engaging with a threaded opening in the slide, substantially as
set forth.
38. The combination with a sheet paper feeder provided with a stop mechanism,
and a press provided with a stop mechanism, of a coupling adapted to connect the
stop mechanism of the feeder and the press whereby both stop mechanisms can be
operated simultaneously or the stop mechanisins of the feeder and the press can be
disconnected, substantially as set forth.
39. The combination with a sheet paper feeder and a press, of a stop mechanism
controlling the feeder and provided with a rock arm, a stop mechanism controlling
the press and provided with a rock arm, and a coupling whereby said rock arms
can be connected or disconnected, substantially as set forth.
40. The combination with the printing press frame, the rotary cylinder provided
with grippers, and the stop mechanism whereby the press is coupled with or
uncoupled from its driving mechanism, of an electro magnetic catch whereby the
stop mechanism is held in position for coupling the press with the driving
mechanism, a lower contact connected with said catch a sheet carrier whereby the
sheets are delivered upon the lower contact and to the grippers, a movable upper
contact mounted on said frame and also connected with said catch, and mechanisin
whereby the upper contact is moved toward the lower contact after each sheet
delivery movement of the carrier and away from the lower contact before the
grippers have closed or withdrawn the sheet whereby an incorrectly placed sheet
is prevented from being carried partly around the cylinder, substantially as set
forth.
41. The combination with a paper feeder provided with sheet carrier, of two
gauge jaws between which the sheets are fed, a stop mechanism controlling
said feeder, an electro-magnetic catch controlling said stop mechanism, and two
contacts which form the terminals of the electro magnetic catch and between which
the sheets are fed, one of said contacts baving a movement toward and from the
other contact, substantially as set forth.
42. The combination with a sheet carrier, a press and a stop mechanism coD-
trolling the press, of two gauge jaws between which the sheets are fed, an electro
magnetic catch controlling said stop mechanism, and two contacts which form the

page_text: terminals of the electro magnetic catch and between which the sheets are fed, one
of said contacts having a movement toward and from the other contact, sub-
stantially as set forth.
43. The combination with a sheet paper feeder provided with a stop mechanism
and a press provided with a stop mechanism, of a coupling whereby said stop
mechanisms can be connected or disconnected, an electro magnetic catch controlling
said stop mechanism, two contacts forming the terminals of the electro inagnetic
catch and arranged on opposite sides of the path of the sheets, one of said
contacts having a movement toward and from the other contact, and two gauge
jaws arranged on opposite sides of the path of the sheets, substantially as set
forth.
44. The combination with a gauge having a member which is capable of rotative
movement with its peripheral face in the direction in which the material moves
past the gauge and which is normally at rest but is rotated by an abnormal thick-
ness of material, for instance, more than one sheet of paper, and moves at its face
with the passing material, of an electric stop mechanism having contacts which are
engaged by such rotative movement of said member, substantially as set forth.
45. The combination with a gauge roller arranged below the path of the passing
material, of a pivoted segment which is arranged with its peripheral face above the
path of the material and which faces said roller, said segment being normally at
rest but rotated by an abnormal thickness of material to move at its peripheral
face with the passing material, and an electric stop mechanism having contacts
which are engaged by said rotative movement of said segment, substantially as set
forth.
46. The combination with a gauge roller, of a movable gauge member which is
capable of rotative movement with its peripheral face in the direction in which
the material moves past the gauge and which is normally at rest but is rotated by
an abnormal thickness of material and moves at its peripheral face with the passing
material, a contact carried by said rotative member, a supporting bracket carrying
another contact, and an electric stop mechanism connected with said contacts,
substantially as set forth.
47. The combination with the gauge roller arranged below the path of the
passing material, a pivoted segment arranged above the path of the passing material
in line with said roller and adapted to be turned by the passage of an abnormal
thickness of material, for instance, more than one sheet of paper, between the roller
and segment, and an adjustable support carrying said segment and capable of
moving the segment toward or from said roller, of an electric stop motion having
contacts which are engaged by the rotative movement of said segment, substantially
as set forth.
48. The combination with a gauge roller adapted to support a sheet of paper, of
a driving roller connected with said gauge roller and adapted to be rotated by one
of the carrying tapes, and a gauge member facing said gauge roller and capable of
rotative movement, substantially as set forth.
49. The combination with a gauge roller adapted to support a sheet of paper, of
a driving roller connected with said gauge roller and adapted to be rotated by one
of the carrying tapes, a gauge member facing said gauge rollers and capable of
rotative movement, and a pressure roller facing said driving roller, substantially as
set forth.
50. The combination with a gauge roller having a driving roller adapted to be
rotated by one of the carrying tapes, and a gauge member facing said gauge
roller, and capable of rotative movement, of an electric stop mechanism having
contacts which are engaged by the movement of said rotative member, substantially
as set forth.
51. The combination with two normally disengaged parts of the tripping
mechanism of a printing press or other machine to which sheets of paper are fed,
one of which parts is normally reciprocated by engagement with some moving part
of the press while said other part is normally at rest, of a catch or trigger carried

page_text: by one of said parts and adapted to couple the same to the other part, an electro-
magnet for operating said catch or trigger, mechanism whereby said electro
magnet is moved toward and from said catch or trigger to bring the magnet
alternately within operative distance of the same and remove it therefrom, and a
circuit breaker which is acted on by the sheet, substantially as set forth.
52. The combination with two normally disengaged parts of the tripping
mechanism of a printing press or other machine to which sheets of paper are fed,
one of which parts is normally at rest, of a catch or trigger carried by one of said
parts provided with an armature, and adapted to couple both parts together, an
electro magnet for operating upon said armature and catch or trigger, mechanism
whereby said electro magnet is moved toward and from said armature to bring
said magnet alternately within operative distance of said armature and remove it
therefrom, and a circuit breaker which is acted on by the sheet, substantially as
set forth.
53. The combination with two normally disengaged parts of the tripping
mechanism of a printing press or other machine to which sheets of paper are fed,
one of which parts is normally reciprocated by engagement with some moving part
of the press while said other part is normally at rest, of a catch or trigger adapted
to couple said parts together and mounted on the part which is normally at rest, an
electro magnet for operating said catch or trigger, and a circuit breaker which is
acted on by the sheet, substantially as set forth.
54. The combination with two slides, one normally at rest and connected with
the trip mechanism of the press and the other reciprocated by some moving part
of the press, of a catch or trigger adapted to couple said parts together and
mounted on the part which is normally at rest, an electro magnet which is recipro-
cated toward and from said catch or trigger in a direction which does not coincide
with that of said reciprocating slide and a circuit breaker which is acted on by the
sheet, substantially as set forth.
55. The combination with two slides, one connected to the trip mechanism of
the press and the other reciprocated by engagement with some moving part of the
press, of a catch or trigger carried by one of said slides, a pivoted toe mounted on
said catch or trigger, an electro-magnet acting on said pivoted toe so as to draw it
into engagement with the other slide, and a circuit breaker acted on by the sheet
of paper as it is fed into the press, substantially as set forth.
56. In a circuit breaker, the combination with a supporting arm, of a depending
plate arranged on the front side of said arm and pivoted at its upper end thereto,
a finger secured to the lower portion of said plate and projecting rearwardly
therefrom and beyond the rear side of said supporting arm and a bolt adjustably
attached with its upper end to the rear side of said supporting arm and supporting
at its lower end said finger when said plate is projected, substantially as set
forth.
HASELTINE, LAKE & Co.,
45 Southampton Buildings, London, W.C., Agents for the Applicant.