Improvements in Cutting Machinery for Paper and the like.
Year: 1897

page_text: Date of Application, 19th July, 1897
Complete Specification Left, 14th Mar., 1898-Accepted, 7th May, 1898
"
PROVISIONAL SPECIFICATION.
Improvements in Cutting Machinery for Paper and the like.
A communication from ARTHUR BENJAMIN COWLES, of 12, Chamberlain Street,
in the City of Rochester, in the State of New York, one of the United States
of America, Factory Superintendent.
I, ALFRED JULIUS BOULT, of- 111, Hatton Garden, Holborn Circus, London, in
the County of Middlesex, Chartered Patent Agent, do hereby declare the nature of
this invention to be as follows:-
The object of this invention is to provide an accurate and simple machine for
cutting paper, and the like, and it is herein described as applied to cutting into
the proper lengths the rectangular tubes for forming boxes.
On one side of the frame is the feeding table. Longitudinally upon this table
a series of supporting bars is placed, on which the stock, or, in the present case, the
unslit shells, are placed by the operator. At the end of each supporting bar next
to the cutting mechanism, is an upwardly extending lug or stop from which there
extends to the surface of the feed table an inclined face. On the feed table are
also end guides which are adjustable as usual on the feed table, as also are the
supporting bars. On one of the end guides close to the point where the stock is
delivered to the cutters, there is a spring which presses the edge of each blank or
piece of material against the other end guide and thus accurately adjusts its
position with reference to the cutting mechanism, before it begins to be cut.
Through the feed table are a pair of circular perforations in which are set a pair
of revoluble discs having their upper surfaces flush with the surface of the table.
These discs are of the same diameter and are supported on vertical axes equi-
distant from the cutters and set in bearings hung under-the table and on the lower
end of each axis is a bevelled gear wheel which meshes with a bevelled gear wheel
on a transverse shaft under the table and suitably connected with the driving
mechanism. Two gear wheels operate to turn two discs in opposite circular direc-
tions and at the same rate of speed. It will be understood that the edge of the
disc nearest to the front of the machine extends to a suitable distance between the
supporting bars and that the diametrically opposite edge of the disc extends close
to the cutting mechanism. Upon the upper surface of each disc is an adjustable
lug. Across the top of the machine is a brace extending between side supports
on the frame and from each side support, in the direction of the feed table, extends
a bracket to support a transverse shaft, driven as hereinafter described. To the
brace are fastened two brackets to which are pivoted by horizontal pivots, a pair
of feeding dogs, each of which is normally pulled upward by a spring attached to
an arm fixed to the brace. The feeding dogs extend from the pivots to points
immediately over the lugs on the two outside supporting bars and the dogs have
lower edges parallel to the axis. Upon the shaft adjacent to each dog, is a cam,
each of which bears an antifriction roller on the side of a dog. The cams are of
such form and are so set on the shaft as to cause the dogs to rise and fall alternately
and the two corresponding dogs are operated by 'the shaft to rise and fall exactly

page_text: together and the same is the case with the other pair of dogs. The cams are
preferably made so that one dog has a quick descent and quick ascent and remains
depressed only for a short time; while the other dog has a quick descent and ascent,
but remains depressed for a much longer period than the first mentioned dog. The
feeding dogs and their operating mechanism constitute an auxiliary feeding
mechanism.
Boxes are frequently manufactured in long tubes having lithographed matter
on their outsides and the machine is adapted to separate the single long tube into
a number of separate box covers. On account of the lithographed matter, it is
necessary to separate the individual covers with great accuracy on the lines of
division between the separate prints, in order that there shall be as little waste
as possible of paper, and it is also necessary that the cuts across the long tube
shall be perfectly square and clean.
That portion of this machine thus far described operates as follows; -The
operator places a series of the long tubes just described, vertically on edge upon
the supporting bars, pushing them forward towards the lug. When the foremost
tube rests against the lugs, it also rests against the front faces of two of the dogs.
If the shaft is now operated, and the foremost tube rests against the faces of the
dogs, these dogs remain depressed, until the cams permit the dogs to rise for a
brief period, pulled by their springs, whereupon one of the tubes drops forward
under the dogs on account of the engagement over its upper edge of the dogs,
which have been suddenly and momentarily depressed by the cams.
The wedge-
like ends of the dogs enter between the foremost tube and the next, and tilt the
foremost tube forward and allow it to drop over the lugs and to fall down the
inclined faces upon the surface of the feed table. When the tube falls forward
upon the table, it also falls across the discs at a time when the lugs are back of
the ends of the supporting bars. The revolution of the discs brings the lugs against
the back edges of the tube, and the continued revolution of the discs presses the
tube forward toward the cutters, both ends of the tube moving with equal speed
and in lines exactly at right angles to the cutter shaft. When the tube is pushed
forward far enough to engage with the side spring, the tube is pressed against the
other end guide and is thus accurately placed with regard to the lines on which
it is to be cut. The revolution of the discs, bringing the lugs into the proper
position, fully delivers the leading edge of the tube to the cutting mechanism.
It will be seen that the shafts operate in time together and, at the same number
of revolutions per minute. One tube after another is automatically delivered from
the series on the supporting bars to the rotary feeding mechanism of the feed table
and thus, in respect of the feeding to the cutters, the machine is wholly automatic
and it is only necessary for the operator to keep a sufficient number of tubes upon
the supporting bars and by a weight or other suitable device placed upon the
table, to keep them pressed forward against the lugs and the faces of the dogs.
The elasticity of the tubes, when collapsed, causes a gradual feeding forward of
the tubes, so that it is not necessary for the operator to press the series of tubes upon
the supporting bars constantly in the direction of the feeding device.
Transversely in the frame are journalled two parallel shafts carrying rotary
cutters of a well-known form, arranged in pairs. The cutting points of the respec-
tive pairs of cutters are in the same plane with the surface of the table. There are,
of course, a sufficient number of pairs of cutters on the shaft to slit the tube along
as many lines as may be desired. The lower shaft is in fixed boxes, but the upper
shaft is set in movable boxes sliding in ways to and from the shaft, being pressed
toward the shaft by the set screw and being pressed away from the shaft by a
spring. The shaft is also the driving shaft and bears the fast and loose pulleys,
and, if desired, a hand wheel, for use in setting the apparatus preparatory to
operating it by power.
Between the cutters on the cutter shaft are a series of drums having peripheral
grooves therein. Through these drums and through the cutters, eccentric to the

page_text: axis, passes a gripper shaft bearing a series of gripper hooks, one for each drum.
Upon the gripper shaft is an arm bearing an antifriction roller for engagement
with a cam, which is stationary and is fixed to the frame. A spring attached
to an arm on the gripper shaft normally tends to keep the gripper hook closed.
The spring operates against a fixed abutment so as to be independent of the action
of the cam, and when the cam revolves, the gripper finger is alternately closed and
opened; the opening is performed quickly by an abrupt depression in the cam,
and the closing thereof is also quick. The gripper finger is thus closed by the opera-
tion of the spring and is also opened by the operation of the cam. The position
of the cam with reference to the position of the arm is timed with reference to the
rotation of the feeding lugs, so that, as soon as the lugs reach their extreme position
in feeding the tube forward, the grippers take hold of the leading edge of the
tube, the same being caught between the end of the gripper and the abutment
plate.
On the delivery side of the machine is the receiving table. Across the machine
and between the receiving table and the cutters is a shaft bearing a series of
adjustable strippers and stationary shell-stopping fingers having their upper
surfaces in the same plane as the table and substantially in a radial plane or line
of the drums and cutters, and having points projecting into grooves of the drums.
After the grippers have taken hold of the leading edge of the tube, the revolu-
tion of the shaft pulls the tube through the cutters and slits the tube on the desired
lines; and in this mechanism the feeding and cutting must necessarily proceed
with equal speed, without buckling the tube or tearing or breaking the edges by
reason of slip of feeding mechanism or by difference in speed between the feed and
the cutting. When the tube is slit, the cam raises the arm, and disengages all
the grippers simultaneously from the series of shells just before the leading edges
of the individual shells come in contact with the strippers or stopping finger, which
are radial to the rotary cutters. The operation of the cam causes the grippers to
grasp the shell through about one-quarter of the revolution of the shaft and to
hold the individual shells till they are delivered in a vertical position on the shell
stopping fingers, whereby further movement of the shells or sheet sections, is
arrested. As each tube is slit, the shells are delivered against the shells just
previously cut and thus they are arranged in order upon the table in a position
for convenient handling.
As these shells or sheet sections are thus delivered they are arrested by said
stopping-fingers and substantially perpendicular thereto, and since these stopping
fingers constitute continuations of the table surface, the series of sheet sections
resting on edge on the stopping fingers and on the table are moved forward by
the sheet sections produced by each successive cut.
In a modified form of this machine, one or more rollers are provided journaled
in a frame which is fastened to the upper transverse bar of the frame, as by bolts.
A lug upon the bar carries a set screw which presses upon the frame and adjusts
it vertically toward and from the shaft. The roller rests upon one of the drums
and rolls upon the same as the drum revolves. A bar underneath the shaft carries
a like series of devices, consisting of the lug, the set screw, the bolts, the frame
and the roller, which last rolls upon one of the drums, upon one cutter shaft, touch-
ing it at a point in a line passing through the two cutter shafts and the roller.
The cutter shafts therefore, are prevented from springing away from each other..
It is obvious that the grippers always present the blanks to the same portions
of the knife surfaces at each revolution. In the present form of machine, for the
circular knives, segmental knives which are slotted on the side next to the shaft
are therefore substituted and in the slot of each knife is a bolt, by which the knife
is fastened to the side of its drum. Each knife is therefore easily removable
without disturbing any other part of the machine than the knife and its bolt;
and each knife is also adjustable for accurate registry of each pair.
Instead of the two pairs of feeding dogs, a single pair set in the middle of the
machine to engage the middle of each blank is also used. These dogs are pivoted

page_text: to the frame of the machine on a standard so as to vibrate vertically on a pivot,
but they have other adjustments not found in the form of dogs first described.
On the pivot there vibrate two horizontal arms, each carrying a bar, which runs
in a perforation in the arm and is adapted to be adjusted and fastened therein by
set screws. These bars are movable horizontally, for adjustment with reference
to the position of the edge of the blank which is to be acted upon. The dogs are
actually rods held in transverse perforations in the ends of the rods by set screws,
and said rods are therefore vertically adjustable by moving them through said
perforations and are fastened therein by setting up the set screws last mentioned.
The lower end of the dog has a notch with two adjacent sharp edges, which notch
engages the upper edge of the first blank and holds the blank in position. The
other dog has a sharp edge, which is so adjusted as to enter between the edge of
the blank which is held by the dog and the edge of the next blank back of the
same. The accurate adjustment of the edges of the dogs is important.
Upon a transverse shaft which is geared to and actuated from the driving shaft
in any suitable manner so as to revolve once with the revolution of the shaft, are
two cams.
One cam has a depression and the arm rests on the cam, the depression
permitting the arm and dog to descend when resting in said depression.
The other cam is merely a pointed cam which raises the dog for the instant
necessary to permit the edge of the foremost blank to pass out of the notch in the
holding dog.
In order to increase the certainty of the blank falling upon the feed table and
of preventing the possibility of rebound of said blank from said table when very
heavy blanks are employed, and of forcing very light blanks into proper position
on the table, a pneumatic blank holder is made use of which seizes the blank as
soon as it is moved from the mass of blanks and carries it downward upon the table,
whereupon it releases the blank, in order that the latter may be easily moved by
the feeding dogs into position to be seized by the grippers and cut." A tube is
connected with a suitable exhaust apparatus, such as a blower connected for
exhausting. This tube is connected, by a suitable joint, with a hooked tube, the
open and free end of which passes up through an opening in the middle of the feed
table. The other end of the tube is set in suitable bearings and, preferably
through a hollow bearing, is connected with the tube. The hooked tube carries
a lug to which is pivoted a link which is connected with a crank pin upon a crank
plate upon a shaft. The end of the link has a slot engaging the pin, so that at
the two extreme positions of movement of the pin, the hooked tube has two
definite period of rest, viz.: while the pin is traversing the slot from one end to
the other and back again at the extreme position of the pin with reference to the
link.
Upon the feed table is an inclined guide surface which tends to cause the blanks
laid crosswise on edge thereon, to slide downward toward the delivery end and
this inclined table guides the blanks to and upon the supporting bars provided
with the vertical lugs at their extremities. The column of blanks descends the
inclined table and is stopped by the lugs in position under the dogs, whereupon
the dogs and pneumatic feeding device operate as follows: The stopping dog holds
the foremost blank in proper position and the dog, rising from its lowest position,
snaps over the top edge of the foremost blank and drops behind the edge of said
foremost blank. The further revolution of the cam shaft quickly lifts the dog,,
releases the edge of the foremost blank, permits the dog to descend behind said
foremost blank and to tilt it over the lugs. In the mean time, the hooked tube
has risen through the opening and has approached the forward or under surface
of the foremost blank which is, at this moment, in a position substantially parallel
to the face of the open or free end of the tube. The tube now stops for a moment
and the pneumatic suction draws the blank against the face of the tube away
from and over the lugs; the free end of the hooked tube now descends until the
blank lies upon the face of the feed table. The lugs are at this time, behind the
rear edge of the blank. Substantially as soon as the blank is set upon the face

page_text: of the table, the end of the hooked tube has passed beneath the surface of the
table, its motion is stopped and the tube is relieved of the blank, leaving the latter
free to be moved upon the table by the feeding dogs in order to be grasped by
the grippers and to be carried through and slit by the knives.
It is obvious that this device is adapted to the cutting of other forms of paper
stock than the tubular blanks mentioned above; for instance, it is adapted to
feed sheets or strips of paper or of card board and to cut the sheet sections
accurately and rapidly. It is further clear that the tubes and tube sections herein
described are merely forms of sheets and sheet sections and in this specification
sheets of paper, strips of card board, tubular blanks and other like materials or
articles are to be considered as equivalents.
Dated this 19th day of July 1897.
BOULT & WADE,
Agents for the Applicant.
Improvements in Cutting Machinery for Paper and the like.
A communication from ARTHUR BENJAMIN COWLES, of 12, Chamberlain Street,
in the City of Rochester, in the State of New York, United States of America,
Factory Superintendent.
I, ALFRED JULIUS BOULT, of 111, Hatton Garden, in the County of Middlesex,
Chartered Patent Agent, do hereby declare the nature of this invention and in
what manner the same is to be performed, to be particularly described and ascer-
tained in and by the following statement:-
In the drawings accompanying this specification,-
Fig. 1 is a top plan view of one of the machines;
Fig. 2 is a front view thereof, looking in the direction of the arrow marked 2, in
Fig. 3;
Fig. 3 is a side view thereof, looking in the direction of the arrow marked 3 in
Fig. 1, parts being removed to exhibit construction;
Fig. 4 is a cross section on the line 4-4 of Fig. 1;
Fig. 5 is a cross section on the line 5-5 of Fig. 2;
Figs. 6 and 7 are vertical sections on the lines 6-6 and 7-7 respectively of
Fig. 9;
Fig. 8 is a detail; and
Fig. 9 is a front elevation of a modification of the machine.
The object of this invention is to provide an accurate and simple machine for
cutting paper, in the form of tubular blanks, sheets, strips &c. and other like
materials; and it is herein shown and described as applied to cutting into the
proper lengths rectangular tubes for forming boxes.
This invention consists in the mechanisms hereinafter described and claimed.
In the drawings A is the frame of the machine, which of course may be of any
suitable form necessary to sustain the mechanism. On one side of the frame is
the feeding table B. Longitudinally upon this table is placed a series of support-
ing bars B', on which the stock, or, in the case shown, the unslit shells X are
placed by the operator. At the end of each supporting bar next to the cutting
mechanism, is an upwardly extending lug or stop 6' from which there extends to
the surface of the feed table an inclined face b, (see Figs. 3 and 4). On the feed
table B are also end guides B2 which are adjustable as usual on the feed table,
as also are the supporting bars B'. On one of the end guides close to the point

page_text: where the stock is delivered to the cutters, there is a spring 62 which presses the
edge of each blank or piece of material against the other end guide and thus
accurately adjusts its position with reference to the cutting mechanism, before it
begins to be cut. Through the feed table B are a pair of circular perforations in
which are set a pair of revoluble discs C having their upper surfaces flush with the
surface of the table B, (see Figs. 1 and 4). These discs are of the same diameter
and are supported on vertical axes C equidistant from the cutters and set in
bearings Chung under the table B, and on the lower end of each axis C¹ is a
bevelled gear wheel C³ which meshes with a bevelled gear wheel C on a transverse
shaft C under the table and suitably connected with the driving mechanism.
The gear wheel C3 and the gear wheel C operate to turn the two discs C in opposite
circular directions and at the same rate of speed. It will be noticed that the edge
of the disc C nearest to the front of the machine extends to a suitable distance
between the supporting bars B1 and that the diametrically opposite edge of the
disc extends close to the cutting mechanism. Upon the upper surface of each
disc C is an adjustable lug c. Across the top of the machine is a brace A¹ extend-
ing between side supports A2 on the frame and from each side support A2, in the
direction of the feed table, extends a bracket A³ to support a transverse shaft D,
driven as hereinafter described. To the brace A' are fastened two brackets D¹
to which are pivoted by horizontal pivots D³, (see Fig. 4), a pair of feeding
dogs D3 D4, each of which is normally pulled upward by a spring D³ attached to
an arm De fixed to the brace A¹. The feeding dogs extend from the pivots D²
to points immediately over the lugs on the two outside supporting bars B¹ and
the dogs have lower edges parallel to the axis D. Upon the shaft D adjacent to
each dog, is a cam ³ d, each of which bears upon an anti-friction roller d², (see
Fig. 4), on the side of dog. The cams are of such form and are so set
on the shaft as to cause the dogs D3 D4 to rise and fall alternately and the two
corresponding dogs D3 are operated by the shaft 1) to rise and fall exactly together
and the same is the case with the two dogs D4. The cams are preferably made
as shown in Fig. 4, so that the dog D has a quick descent and quick ascent and
remains depressed only for a short time; while the dog 13 has a quick descent
and ascent, but remains depressed for a much longer period than the dog D4.
The feeding dogs and their operating mechanism constitute an auxiliary feeding
mechanism.
Boxes are frequently manufactured in long tubes having lithographed matter
on their outsides and the machine as shown is adapted to separate the single tube
into eleven separate box covers. On account of the lithographed matter, it is
necessary to separate the individual covers with great accuracy on the lines of
division between the separate prints, in order that there shall be as little waste as
possible of paper, and it is also necessary that the cuts across the long tube shall
be perfectly square and clean.
That portion of this machine thus far described operates as follows;-The
operator places a series of the long tubes X just described, vertically on edge upon
the supporting bars B¹ pushing them forward towards the lug ¹. When the
foremost tube rests against the lugs b¹, it also rests against the front
faces of two of the dogs D3 or 14, as shown in Figs. 3 and 4. If
the shaft D is now operated in the direction of the arrow in Fig. 4,
and the foremost tube rests against the faces of the dogs D³, these dogs
remain depressed, in the position shown in Fig. 4, until the cams permit the
dogs to rise for a brief period, pulled by their springs D5, whereupon one of the
tubes X drops forward under the dogs 13 on account of the engagement over its
upper edge of the dogs 14, which have been suddenly and momentarily depressed
by the cams d. The wedge-like ends of the dogs enter between the foremost tube
and the next, and tilt the foremost tube forward and allow it to drop over the
lugs and to fall down the inclined faces 6 upon the surface of the feed table B.
The tube, in the course of this tilting and dropping, is shown in dotted lines in
Fig. 4.
When the tube falls forward upon the table B, it also falls across the

page_text: discs C at a time when the lugs c are back of the ends 6 of the supporting bars B¹.
The revolution of the discs C, (which occurs in the direction of the arrows in
Fig. 1), brings the lugs c against the back edges of the tube X, and the continued
revolution of the discs C presses the tube forward toward the cutters, both ends of
the tube moving with equal speed and in lines exactly at right angles to the cutter
shaft. When the tube is pushed forward far enough to engage with the side
spring 62, the tube is pressed against the other end guide B2 and is thus accurately
placed with regard to the lines on which it is to be cut. The revolution of the
discs C, bringing the lugs c into the position shown in dotted lines in Fig. 1, fully
delivers the leading edge of the tube to the cutting mechanism.
It will be seen that the shafts C and D operate in time together and, as shown
in the drawings, at the same number of revolutions per minute. One tube after
another is automatically delivered from the series on the supporting bars B¹ to the
rotary feeding mechanism of the feed table and thus, in respect of the feeding to
the cutters, the machine is wholly automatic and it is only necessary for the
operator to keep a sufficient number of tubes upon the supporting bars B¹ and by
a weight Y or other suitable device placed upon the table B, to keep them pressed
forward against the lugs b' and the faces of the dogs D³. The elasticity of the
tubes, when collapsed into the forms shown in Figs. 3 and 4, causes a gradual
feeding forward of the tubes, so that it is not necessary for the operator to press
the series of tubes upon the supporting bars B' constantly in the direction of the
feeding device.
Transversely in the frame A are journalled two parallel shafts E and F, carrying
rotary cutters of a well known form, arranged in pairs. The cutting points of
the respective pairs of cutters are in the same plane with the surface of the table B.
In Fig. 4 a tube is shown in the position of delivery to the cutters ef. There
are, of course, a sufficient number of pairs of cutters on the shaft to slit the tube
along as many lines as may be desired. The lower shaft F is in fixed boxes, but
the upper shaft E is set in movable boxes E' sliding in ways E2 to and from the
shaft F, being pressed toward the shaft by the set screw E3 and being pressed away
from the shaft F by the spring E. The shaft. F is also the driving shaft and
bears the fast and loose pulleys F1 F2, and, if desired, a hand wheel F3, for use in
setting the apparatus preparatory to operating it by power. The shafts C³, F, E
and are all parallel and are geared together as follows;-The shaft E and F
directly the shaft D to the shaft E by the idler.G; and the shaft C³ to the
shaft F by the idler G¹. The arrows in Fig. 3 show. the direction of rotation of
the respective shafts and idlers.
Between the cutters on the shaft F are a series of drums f¹ having peripheral
grooves therein. Through these drums and through the cutters f, eccentric to
the axis, passes a gripper shaft H bearing a series of gripper hooks H', one for
each drum. Upon the shaft H is an arm H3 bearing an antifriction roller H' for
engagement with the cam H2, which is stationary and is fixed to the frame A.
A spring H attached to an arm H6 on the gripper shaft H normally tends to keep
the gripper hook H¹ closed. The spring operates against a fixed abutment ho
so as to be independent of the action of the cam H³, and, when the cam revolves,
the gripper finger is alternately closed and opened; the opening is performed
quickly by an abrupt depression in the cam, as shown in Fig. 5, and the closing
thereof is also quick. The gripper finger is thus closed by the operation of the
spring H and is also opened by the operation of the cam. The position of the cam
with reference to the position of the arm H³ is timed with reference to the rotation
of the feeding lugs c, so that, as soon as the lugs reach their extreme position in
feeding the tube X forward, the grippers take hold of the leading edge of the tube,
the same being caught between the end of the gripper and the abutment plate H7.
In Fig. 4 the parts are shown in the position when the tube is fed forward and the
gripper finger is just at the point of being operated to grasp the tube, and in Fig. 5
the full lines show the parts in position when the gripper finger has just taken
hold of the leading edge. The shaft H and the gripper mechanism revolve with

page_text: the shaft F, while the cam H2 is stationary. On the shaft E are also a series of
drums provided with openings e² to permit the movements of the gripper
fingers H. The drums on the respective shafts assist in keeping the tubes flat
and straight during the process of cutting.
On the delivery side of the machine is the receiving table K. Across the machine
and between the receiving table and the cutters is a shaft J bearing a series of
adjustable strippers and stationary shell-stopping fingers having their upper
surfaces in the same plane as the table K and substantially in a radial plane or
line of the drums f¹ and cutters f, and having points projecting into the grooves f²
of the drums f¹.
After the grippers have taken hold of the leading edge of the tube, the revolution
of the shaft pulls the tube through the cutters and slits the tube on the desired
lines; and in this mechanism the feeding and cutting must necessarily proceed
with equal speed, without buckling the tube or tearing or breaking the edges by
reason of slip of feeding mechanism or by difference in speed between the feed and
the cutting. When the tube is slit, the cam H2 raises the arm H³, and disengages
all the grippers H¹ simultaneously from the series of shells just before the leading
edges of the individual shells come in contact with the strippers or stopping
fingers J, which are radial to the rotary cutters. The positions of the gripper
and of the shell at this moment are indicated in dotted lines in Fig. 5. The
operation of the cam causes the grippers to grasp the shell X through about one-
quarter of the revolution of the shaft F and to hold the individual shells till they
are delivered in a vertical position on the shell stopping fingers J¹, whereby
further movements of the shells or sheet sections is arrested. As each tube is
slit, the shells are delivered against the shells just previously cut and thus they
are arranged in order upon the table K in a position for convenient handling.
As these shells or sheet sections are thus delivered they are arrested by said
stopping-fingers and substantially perpendicular thereto, and since these stopping-
fingers constitute continuations of the table surface, the series of sheet sections
resting on edge on the stopping fingers and on the table are moved forward by
the sheet sections produced by each successive cut. The manner of stopping the
sheet sections and the delivery thereof on edge upon the stopping fingers will be
clearly seen in Fig. 5.
In Figs. 6, 7, and 9, is shown a modified form of this machine, which is preferred
to the form first shown in several respects. In these views A is the frame of the
machine; E and F are the shafts bearing the cutters which are arranged as in
the first described machine so that the shaft E is movable to and from the shaft F
in order to obtain the proper relative adjustment of the cutting edges. The
shaft is provided with the drums E and the shaft F is provided with the
drums f. In the case of long shafts, it is necessary to provide means for prevent-
ing the springing of the shafts when the cutting operation occurs and, therefore,
in a modified form of this machine, there is provided one or more rollers L
journalled in a frame L¹ which is fastened to the upper transverse bar A¹ of the
frame, as by bolts . A lug a¹ upon the bar A¹ carries a set screw which presses
upon the frame A¹ and adjusts it vertically toward and from the shaft E. The
roller L rests upon one of the drums E and rolls upon the same as the drum
revolves. A bar A10 underneath the shaft F carries a like series of devices, con-
sisting of the lug a10, the set screw 110, the bolts 10, the frame L10 and the roller Lº,
which last rolls upon one of the drums f¹ upon the cutter shaft F, touching it at
a point in a line passing through the two cutter shafts F, E and the roller L. The
cutter shafts EF therefore, are prevented from springing away from each other.
It is obvious that the grippers always present the blanks to the same portions
of the knife surfaces at each revolution. In the present form of machine, there
are substituted for the circular knives f and e, segmental knives fo and eº, which
are slotted on the side next to the shaft and in the slot of each knife is a bolt f10
or eo by which the knife is fastened to the side of its drum. Each knife is there-

page_text: fore easily removable without disturbing any other part of the machine than the
knife and its bolt; and each knife is also adjustable for accurate registry of each
pair.
Instead of the two pairs of feeding dogs D3 D4, a single pair 130 ] 10 is used set
in the middle of the machine to engage the middle of each blank. These dogs are
pivoted to the frame of the machine on a standard D10 so as to vibrate vertically on a
pivot D20 but they have other adjustments not found in the form of dogs first
above shown. On the pivot 120 there vibrate two horizontal arms 131 and D",
each carrying a bar D2 D2, which runs in a perforation in the arm and is adapted
to be adjusted and fastened therein by set screws 31 41. These bars D2 and D42
are movable horizontally, for adjustment with reference to the positions of the
edge of the blank which is to be acted upon. The dogs 10 and 140 are actually
rods held in transverse perforations in the ends of the rods D3 D42 by set
screws 32 d2, and said rods 130 and 140 are therefore vertically adjustable by
moving them through said perforations and are fastened therein by setting up
the set screws last mentioned. The lower end of the dog D30 has a notch d³ (see
Fig. 8), with two adjacent sharp edges which notch engages the upper edge of the
first blank and holds the blank in position. The other dog D40 has a sharp edge,
(see Fig. 8), which is so adjusted as to enter between the edge of the next blank
back of the same, (see Fig. 6). The accurate adjustment of the edges of the dogs
is important.
Upon a transverse shaft 10 which is geared to and actuated from the driving
shaft F, in any suitable manner so as to revolve once with the revolution of the
shaft F, are two cams d³ and d. The cam d has a depression do and the arm D"
rests on the cam, the depression permitting the arm and dog 10 to descend when
resting in said depression, as shown in Fig. 7. This action of the dog 140 is much
the same as that of the dog D shown in Figs. 1 to 4 inclusive, but is arranged so
as to have a greater descent and by its weight to force the blank to tip over further
toward the feeding table B in order to increase the. certainty of the blank falling
properly thereon. The other cam I³ is merely a pointed cam which raises the dog D30
for the instant necessary to permit the edge of the foremost blank to pass out of
the notch 30 in the holding dog D30.
In order to increase the certainty of the blank falling upon the feed table and
of preventing the possibility of rebound of said blank from said table when very
heavy blanks are employed, and of forcing very light blanks into proper position
on the table, a pneumatic blank holder is used which seizes the blank as soon as
it is moved from the mass of blanks and carries it downward upon the table,
whereupon it releases the blank, in order that the latter may be easily moved by
the feeding dogs e into position to be seized by the grippers and cut. This device
is most clearly shown in Figs. 6 and 7. M is a tube connected with a suitable
exhaust apparatus, such as a blower connected for exhausting. This tube, at m,
is connected, by a suitable joint, with a hooked tube N, the open and free end of
which passes up through an opening in the middle of the feed table B. The
other end of the tube N is set in suitable bearings and, preferably through a hollow
bearing, is connected with the tube M. The two extreme positions of the hooked
tube N are shown in Figs. 6 and 7. The hooked tube N carries a lug N¹ to which
is pivoted a link № which is connected with a crank pin N³ upon a crank plate
upon a shaft O. The end of the link N2 has a slot n2 engaging the pin N³, so
that at the two extreme positions of movement of the pin N³, the hooked tube N
has two definite periods of rest, viz.: while the pin N³ is traversing the slot from
one end to the other and back again at the extreme positions of the pin N³ with
reference to the link N2..
Upon the feed table B is an inclined guide surface B which tends to cause the
blanks laid crosswise on edge thereon, to slide downward toward the delivery end
and this inclined table B3° guides the blanks to and upon the supporting bars B¹
provided with the vertical lugs 6 at their extremities. The column of blanks
descends the inclined table B° and is stopped by the lugs b¹ in position under the
B

page_text: dogs 10 D40, whereupon the dogs and pneumatic feeding device operate as follows:
the stopping dog 130 holds the foremost blank in proper position and the dog 140,
rising from its lowest position shown in Fig. 7, snaps over the top edge of the fore-
most blank and drops behind the edge of said foremost blank in the position shown
in Fig. 6. The further revolution of the cam shaft Do quickly lifts the dog D30,
releases the edge of the foremost blank, permits, the dog D40 to descend behind said
foremost blank and to tilt it over the lugs b. In the mean time, the hooked
tube N has risen through the opening n and has approached the forward or under
surface of the foremost blank which is, at this moment, as shown in Fig. 7, in a
position substantially parallel to the face of the open or free end of the tube.
The tube now stops for a moment and the pneumatic suction draws the blank
against the face of the tube away from and over the lugs ; the free end of the
hooked tube now descends toward the position shown in Fig. 6, until the blank
lies upon the face of the feed table B. The lugs Care at this time, behind the
rear edge of the blank. Substantially as soon as the blank is set upon the face of
the table B, the end of the hooked tube has passed beneath the surface of the
table, its motion has stopped, and the tube is relieved of the blank, leaving the
latter free to be moved upon the table by the feeding dogs c in order to be grasped
by the grippers H¹ and to be carried through and slit by the knives.
It is obvious that this device is adapted to the cutting of other forms of paper
stock than the tubular blanks mentioned above; for instance, it is adapted to
feed sheets or strips of paper or of cardboard and to cut the sheet sections accurately
and rapidly. It is further clear that the tubes and tube sections herein described
are merely forms of sheets and sheet sections and in this specification and in the
following claims, sheets of paper, strips of card board, tubular blanks and other
like materials or articles are to be considered as equivalents.
☐ Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, as communicated to me by
my foreign correspondent, I declare that what I claim is:
1. In a paper cutting machine, the combination of a pair of shafts having pairs
of cooperating rotary cutters thereon, a series of grippers one for each pair of
cutters, said grippers revolving with one of said shafts and adapted to carry sheets
through the cutters, mechanism for opening and closing said grippers, and a
delivery table having stopping fingers for arresting the sheet sections and in con-
tinuation of the table surface and below the level of the line of cut of said rotary
cutters, whereby the sheet sections are delivered to said table and perpendicular
thereto.
2. In a paper cutting machine, the combination of a delivery table, a pair of
shafts having pairs of cooperating rotary cutters thereon, a series of drums upon
each shaft between the respective pairs of cutters, a series of grippers, one for each
pair of cutters, revolving with one of said shafts, mechanism for operating said
grippers simultaneously, the drums upon the shaft with which the gripper shaft
revolves having peripheral grooves, and a series of fingers set in the same plane
as the delivery table and extending into said grooves.
3. The combination of a feeding table, and a feeding device consisting of a pair
of equal discs revolving horizontally in opposite rotary directions and having their
surface in the same plane with the feeding table, and a lug on each disc extending
above the surface of the table, whereby material placed upon said feeding table
and across said discs is fed forward by the motion of said lugs.
4. In a paper cutting machine, a feeding table, and an auxiliary feeding
mechanism consisting of a stop on said table and pairs of alternately moving
feeding dogs operating alternately on the upper edge of each blank for separating
the successive blanks from a mass of vertically arranged blanks.
5. In a paper cutting machine, a feeding table, and an auxiliary feeding
mechanism consisting of a stop on said table and pairs of alternately moving feed-
ing dogs operating alternately on the upper edge of each blank for separating the

page_text: successive blanks from a mass of vertically arranged blanks and a mechanism to
which the dogs deliver the blanks for advancing the same to the cutters.
6. In a paper cutting machine, a feeding table, and an auxiliary feeding
mechanism consisting of supporting bars above the level of the feed table, each
bar having a stop on its end next the cutters, and pairs of alternately moving
feeding dogs operating alternately on the upper edge of each blank for separating
the successive blanks from a mass of vertically arranged blanks and delivering
them successively over the stop upon the feeding table.
7. In a paper cutting machine, a feeding table, an auxiliary feeding mechanism
consisting of a stop on said table, and pairs of alternately moving feeding dogs
operating alternately on the upper edge of each blank for separating the successive
blanks from a mass of vertically arranged blanks and delivering them successively
over the stop upon the feeding table.
8. In a paper cutting machine, a feeding table, and a feeding device, consisting
of a pair of equal discs revolving horizontally in opposite directions and having
their surfaces in the same plane with the feeding table, a lug on each disc
whereby the blank is pressed forward to the cutters, and an auxiliary feeding
mechanism consisting of a stop on said table, and pairs of alternately moving dogs
operating alternately on the upper edge of each blank for separating the succes-
sive blanks from a mass of vertically arranged blanks and delivering them
successively over the stop upon the feeding table, and across said discs.
9. In a paper cutting machine, a feeding device, consisting of a pair of equal
discs revolving horizontally in opposite directions, a lug on each disc whereby the
blank is pressed forward to the cutters, and an auxiliary feeding mechanism, con-
sisting of a stop on said table and pairs of alternately moving feeding dogs operat-
ing alternately on the upper edge of each blank for separating the successive
blanks from a mass of vertically arranged blanks and delivering them successively
to said feeding device.
10. In a paper cutting machine, a feeding table, and a feeding device, consisting
of a pair of equal discs revolving horizontally in opposite directions having their
surfaces in the same plane with the feeding table, a lug on each disc whereby the
blank is pressed forward to the cutters, and an auxiliary feeding mechanism, con-
sisting of a stop on said table and pairs of alternately moving feeding dogs
operating alternately on the upper edge of each blank for separating the successive
blanks from a mass of vertically arranged blanks and delivering them successively
over the stop upon the feeding table.
D
1
1441
of Maval 1900
BOULT & WADE,
Agents for the Applicant.