Improvements in Embossing Machines.
Year: 1893

page_text: Date of Application, 1st Aug., 1893-Accepted, 2nd Sept., 1893
COMPLETE SPECIFICATION.
Improvements in Embossing Machines.
We, ROBERT SCOTT ANDERSON of No. 359 Ontario Street Toronto, Province
of Ontario, in the Dominion of Canada, Machinist, and EDWARD WAKEFIELD
BLACKHALL of No. 93 Wood Street, Toronto, Province of Ontario, in the
Dominion of Canada, Manufacturer, 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 machines for embossing or stamping paper, particularly
envelopes and other stationery.
The objects of this invention are to produce a machine of this character which is
simple in construction, accurate in operation, easy of manipulation and which will
permit the embossing of paper, either plain or in colours, more expeditiously than
has been possible heretofore.
In the accompanying drawings,
Figure 1 is a side elevation of the improved embossing machine.
Figure 2 is a front elevation of the same.
Figure 3 is a vertical sectional detail view drawn to an enlarged scale showing
the buffer mechanism for resisting the downward movement of the plunger.
Figure 4 is a vertical cross section of the same on line 4-4 Figure 3.
Figure 5 is a horizontal section of the same, on line 5-5, Figure 3.
Figure 6 is a section on line 6-6, Figure 5.
Figure 7 is a part vertical section, on an enlarged scale, on line 7-7, Figure 1.
Figure 8 is a vertical section on line 8-8, Figure 7.
Figure 9 is a vertical central section, on an enlarged scale, of the upper portion
of the machine.
Figure 10 is a cross section on line 10-10, Figure 9.
Figure 11 is a vertical section on line 11-11, Figure 9, showing the means for
lifting the plunger.
Figure 12 is a horizontal section on line 12--12, Figure 9.
Figure 13 is a vertical cross section on line 13-13, Figure 10, showing the
wiping mechanism.
Figure 14 is a vertical cross section, on an enlarged scale, on line 14-14,
Figure 13.
Figure 15 is a front elevation of the slide detached which carries the wiping
mechanism.
Figure 16 is a vertical cross section on line 16--16, Figure 12, showing the cam
and connecting parts for raising the wiping mechanism.
Figure 17 is a vertical longitudinal section, on an enlarged scale, on line 17-17,
Figure 12.
Figure 18 is a cross section on line 18-18, Figure 12.
Figure 19 is a plan view of the main cam for throwing the clutch out of
engagement with the driving wheel.
Figure 20 is a part side elevation of the machine viewed from the side opposite
to that shown in Figure 1 and showing the trip cam for operating the auxiliary
uncoupling cam.
Figure 21 is a top plan view of the die and its carrier arm.
Figure 22 is a perspective view of the pad supporting plate and its attachments.
Figure 23 is a similar view of the bracket carrying the pad supporting plate.
Figure 24 is a part sectional elevation showing another means for actuating the
plunger from the driving shaft of the machine and
Figure 25 is a front elevation thereof.

page_text: Like letters of reference refer to like parts in the several figures.
rear
The main frame of the machine consists of an upright base A, and a horizontal
table A arranged upon the base and on one side thereof, front and
standards A' A projecting upwardly from the table, all of which are preferably
cast in one piece. The table projects in front of the standards forming an anvil
which sustains the embossing die B, and receives the impact during the operation of
embossing.
The said die is provided on its upper surface with the design which it is desired
to emboss on the paper, and it is secured to the outer free end of a horizontal
carrier arm b. The latter rests upon the table and is secured at its inner end to a
vertical rock shaft C, which is journaled at its upper portion in a bearing c formed
between the standards A2 A3, and with its lower portion in a bearing c¹ formed in
the table, Figures 9, 10.
D is a longitudinal driving shaft arranged horizontally above the upper end of
the vertical rock shaft C and journaled in bearings d d¹ formed in the upper
portion of the standards.
E is a vertically movable plunger, the lower end of which is provided with a
counter die e, which conforms to the design upon the die. The said plunger is
provided on opposite sides with vertical guide grooves or ways e¹ which receive
guide plates e secured to the overhanging portion of the front standard.
F is a lifting cam which is arranged in a recess formed in the front side of the
front standard in rear of the plunger and is secured to the front end of the driving
shaft D. The said lifting cam is provided with a concentric face f, an abrupt
face and a lifting nosef as shown in Figure 11. A portion of the rear side of
the plunger is preferably flattened and provided with a roller f³ which rests upon
the lifting cam. As the driving shaft revolves, the nose of the cam engages
under the roller and raises the plunger. The plunger remains elevated while the
roller rests upon the concentric face of the lifting cam and until the rear end of the
concentric face clears the roller, when the plunger drops and delivers a blow upon
the die. After the plunger strikes the die the nose of the lifting cam engages with
the roller of the plunger and raises the same upon the concentric face of the
cam. The concentric face of the lifting cam is provided with a notch f' which
receives the roller of the plunger whereby the latter is held in an elevated position
when the machine is at rest.
9.
The downward movement of the plunger may be effected solely by gravity and
its weight may be increased by a head G secured to its upper end by a bolt
The
weight of the said head is determined by the amount of force necessary to properly
emboss the paper which is placed upon the die. In order to increase the effectiveness
of the blow of the plunger without materially adding to the weight of the machine
a set of springs g₁ are arranged on opposite sides of the plunger and secured with
their upper ends to laterally projecting aims g² secured to the upper end of the
plunger and with their lower ends to laterally projecting pins g³ secured to opposite
sides of the front standard. Upon raising the plunger the said springs are compressed
and when the plunger is released from the lifting cam their resilience increases the
force of the blow of the plunger.
Upon striking the die the plunger rebounds and begins to descend again, but is
prevented from striking the die a second time, by a buffer mechanism which is
constructed as follows:-
H, represents a horizontal shelf (sec Figures 3, 9) projecting forwardly from the
upper end of the front standard into a recess formed in the upper rear portion of
the plunger. h is a plate which carries the buffer mechanism and which rests upon
the shelf H. This carrying plate is pivoted to the shelf on one side of the plunger
by a screw so as to be capable of swinging horizontally rearward. The said carry-
ing plate is provided at its opposite end with a notch 2 which receives a screw ³,
secured to the shelf. represent two vertical buffer plates arranged one behind
the other upon the carrying plate within the recess of the plunger. The front
buffer plate is provided at its lower end with a rearwardly projecting foot,

page_text: which is secured to the top of the carrying plate, and the lower end of the rear
buffer plate 5 is provided with a shoulder, which rests upon the rear end of said
foot. represents a longitudinal tie rod which passes through both buffer plates
and which is provided at its front end with a head which bears against the front
side of the front buffer plate. The buffer plates are yieldingly drawn together by
a spiral spring h', which surrounds the tie rod and bears with its ends against the
rear side of the rear buffer plate and a hand screw 8 arranged upon the rear screw
threaded end of the tie rod. The upper portions of the buffer plates are held
apart, so as to form a space between them, by a sleeve i, surrounding the tie rod
between the buffer plates. represents a depending wedge which is secured to the
plunger in the top of the recess, and which is adapted to pass between the buffer
plates during the last portion of the downward stroke of the plunger. The wedge
is bifurcated to permit it to straddle the tie rod and sleeve and the upper opposing
edges of the buffer plates are bevelled or rounded to facilitate the entrance of the
wedge between them. When the plunger descends its momentum is sufficient to
cause its wedge to overcome the tension of the spring h' and spread the buffer
plates thereby effecting a full blow upon the die. After the blow has been
delivered upon the die, the plunger rebounds a short distance, and the tendency of
the plunger to descend a second time is resisted by the buffer plates, the tension of
the spring being so adjusted that it overcomes the momentum of the plunger after
its rebound. In fitting the counter die of the plunger to the die, the plunger must
rest upon the die until the counter die is set. In order to permit the plunger to
remain in its lowest position and rest upon the die the carrying plate supporting
the buffer plates is swung rearwardly from underneath the wedge so that no
resistance is offered to the descent of the plunger. The buffer plates are preferably
held in their operative position underneath the wedge by a spring catch; secured
with its rear portion in a recess formed in the free end of the buffer carrying plate
and provided at its front end with a shoulder which engages over the front edge of
the front standard as represented in Figures 5 and 6,
When it is desired to emboss a design upon the paper in colours a quantity of
ink of any desired colour is placed upon the face of the die by the operator, and
the die is carried rearwardly beneath a wiper for removing the surplus ink from
the die, and then forwardly to a position below the plunger, by the following
mechanism :-
K represents a spherical head secured to the driving shaft between the
bearings dd, and provided around its periphery with an inclined groove or cam
face k, and at its front end with a concentric face k¹. represents a curved
actuating arm secured with its lower end to the upper end of the rock shaft C, and
provided at its upper end with a roller k³, which engages with the cam face k, and
concentric face k, of the spherical head. The roller k³ is held against the
concentric face k¹, and in the cam groove k by a spiral spring k', which is attached
with one end to an arm k, secured to the lower end of the rock shaft and with its
opposite end to an adjustable bar k, secured in a hanger k7, as shown in Figure 10.
Upon rotating the driving shaft the cam face k, engaging with the roller k³ of
the curved arm of the rock shaft actuates the latter and imparts a backward and
forward movement to the die, and during this movement the inking and wiping of
the die is effected. At the end of the forward movement of the die the roller k³,
has arrived at one end of the cam k, and engages with the concentric face k¹.
While the roller is engaged with the concentric face k, the die remains stationary
in its forward position below the plunger and in this position the plunger is released
from the cam F and strikes the die.
L represents a vertically movable slide which supports the wiping mechanism
and which is guided in ways formed in a side standard L', secured to the outer
side of the table and preferably formed integrally with the hanger k7. 1 represents
a rock shaft journaled in bearings formed on the outer side of the side standard L',
and provided with a lifting arm l, which projects inwardly through vertical slots
formed respectively in the slide and side standard with its free end bearing against

page_text: the upper end of the slot in the slide. P, is an upwardly extending rock arm
secured to the rear end of the rock shaft 7, and 13 is an actuating arm pivoted with
its lower end to the rear standard A³, as shown in Figures 10 and 16 and connected
at its upper end with the rock arm 2 by a rod . m represents a cam secured to
the driving shaft and bearing with its face against a roller m', mounted on the upper
free end of the actuating arm 13. When the salient portion of the cam m engages
against the roller of the actuating arm the movable slide is raised through the
medium of the rock shaft l, arms 113, and rod 1. is an externally screw threaded
sleeve arranged in a screw threaded opening formed in a lug projecting from the
upper end of the slide L. n' is a vertical guide rod passing through the sleeve and
secured at its lower end to the side standard and n is a spiral spring surrounding
the rod n', between the sleeve n, and a screw nut n³. When the salient portion of
the cam passes by the roller m', the slide is forced downwardly by the spring n³,
bearing against the sleeve a; the downward movement of the slide being limited
by the lower end of the sleeve striking the top of the standard L.
O represents a bracket projecting inwardly from the side standard and supporting
a pad carrying plate 0. This bracket is pivoted near its rear end to the slide by a
screw o, which latter passes through the vertical slot o' in the slide so as to be
accessible from the outer side of the machine. The carrying plate o, is arranged
underneath the bracket, and is provided on its underside with a pad o³, of rubber or
similar flexible material. The outer edge of the pad carrying plate is arranged in
a longitudinal groove formed in the bracket and its inner end is provided with a
socket o, in which is arranged the lower headed end of a vertical screw bolt of
'which is secured to the bracket. The screw bolt is provided with a screw nut o
"at its upper end which bears against the upper side of the bracket, and upon
turning said nut, the pad can be tilted in a vertical transverse plane for the purpose
of adjusting the pad transversely to the face of the die.
represents a vertical thumb screw whereby the pad is tilted in a vertical
longitudinal plane to adjust it lengthwise to the face of the die. As shown in
Figure 13 this screw engages with its lower end in a post p¹, secured to a forwardly
projecting arın formed on the slide L. The upper portion of the thumb screw is
arranged in a bifurcated post p³, secured to the front end of the bracket and is
provided with collars above and below said post, so that upon turning the screw the
front ends of the bracket and the pad connected therewith are raised or lowered
with reference to the slide. The pad is retained in its lengthwise adjusted position
by a jam nut p³, arranged upon the lower end of the thumb piece p. The wiping
pad is held in a raised position during the backward movement of the die and is
lowered upon the die during the forward movement of the same.
Qrepresents a wiping tape or band of paper or similar material which is fed
across the underside of the wiping pad and removes the surplus ink from the die
as the latter passes forwardly underneath the depressed wiping pad. This tape is
rolled upon a spool q, arranged above the wiper mechanism and journaled on an
arbor g, which latter is supported by arms q² attached to the upper portion of the
front and rear standards. From the pool g, the tape passes over a tension
- roller q³, which is suspended by a spring attached to an overhanging rod 9°,
Figures 1, 2. From the tension roller the tape passes downwardly through a
guide 9 (shown in Figure 13) around a roller q', at the front end of the pad
carrying plate, thence underneath the pad and upwardly around a roller q8 at the
rear end of the pad carrying plate, and between a feed roller g³ and a pressure
roller 9 arranged transversely over the bracket, thence upwardly and rearwardly
around the pressure roller and outwardly over a transverse arm 92, secured to the
rear portion of the side standard. The downward movement of the wiping pad is
so regulated that it moves but slightly downward after the die moves from
underneath the same and the rollers upon the ends of the pad carrying plate are
arranged a short distance above the face of the pad so that the die will not come
in 'contact with the same. The feed roller is mounted on a 'transverse shaft R,
(Figures 10, 13) which passes through the slot in the slide and is journaled with

page_text: its ends in bearings formed respectively on the main frame and in the side standard,
as shown in Figure 10.
a
The wiping tape is fed intermittently across the face of the pad so as to present
a new portion to the die during each forward stroke of the latter, by means of a
ratchet mechanism which is constructed and operated as follows:-As shown in
Figure 10, represents a bevel gear wheel mounted loosely on the inner end of
the shaft R of the feed roller, and meshing with a bevel gear wheel, secured to
the vertical rock shaft C. 2 is a disc formed integrally with the bevel gear
wheel r.
is a ratchet wheel mounted on the transverse shaft and provided with
a hub which is secured to said shaft. 4 is a pawl which is pivoted to the
outer side of the disk and which has its front end engaging with the teeth of
the ratchet wheel. During each backward movement of the die and its actuating
shaft C, the pawl is moved forwardly thereby turning the ratchet wheel and feed
roller and shifting the tape in the underside of the wiping pad. In order to enable
the feed of the tape to be regulated according to the amount of ink which must be
wiped from the die, the effective forward movement of the pawl is varied, by
trip cam arranged above the ratchet wheel. This cam is secured to an arm
mounted loosely on the hub of the ratchet wheel and bears against the tail of the
pawl, during the last portion of its backward movement. thereby disengaging
the front end of the pawl from the ratchet wheel. This causes the pawl, during
the first portion of the forward movement, to be held out of engagement with the
ratchet wheel by the cam 5. The instant the tail of the pawl has passed the end
of the cam, the pawl is moved into engagement with the ratchet wheel by a
spring secured to the carrying disk and bearing against the underside of the
pawl, thereby causing the ratchet wheel to be turned during the last portion of the
forward movement of the pawl. is a horizontal shifting rod whereby the trip
cam is shifted circumferentially with reference to the ratchet wheel and the pawl is
thrown out of engagement at any point during its backward movement. This
shifting rod is pivoted with its rear end to a lug on the arm of the trip cam and
provided in its front portion with a longitudinal slot which is secured to the outer
side of the front standard A2 by a screw 28, Figures 12, 17, passing through the slot
of the shifting rod. The feed roller q is prevented from moving backward by a detent
pawl pivoted on the inner side of the side standard L' and engaging with a ratchet
wheel secured to the feed roller shaft adjacent to the slide, see Figures 10, 11.
The pressure roller q10 is journaled in the front ends of carrying arms S which
latter are connected at their rear ends by a sleeve S¹. This sleeve is hung upon
a transverse arbor secured to the inner side of the side standard. The pressure
roller is yieldingly held against the feed roller by a spring S², surrounding the
arbor and bearing with its ends against one of the carrying arms and the side
standard. In order to prevent the tape, which passes with its freshly inked
surface around the pressure roller from clinging to the latter, a number of stripping
fingers S³, are provided, which strip the tape from the pressure roller. These
fingers are arranged with their free ends in circular grooves q" formed on the
pressure roller q10 and secured with their rear ends to a sleeve S which is hung
upon an arbor projecting inwardly from the rear portion of the side standard L.
T represents the driving wheel or pulley which is mounted loosely on the rear
end of the driving shaft D and is coupled and uncoupled with the latter by a
clutch mechanism which is constructed and operated as follows:-t represents a
clutch sleeve mounted on the driving shaft, adjacent to the hub of the driving
wheel and attached to the shaft by a suitable feather which permits the clutch to
move lengthwise on the shaft but compels it to rotate therewith. The rear end of
the clutch sleeve is provided with clutch teeth which are yieldingly held in
engagement with similar clutch teeth formed on the front side of the hub of the
driving wheel by a spring t¹ surrounding the driving shaft and bearing against a
shoulder formed on the clutch sleeve. is the main uncoupling cam whereby the
clutch is automatically uncoupled from the driving wheel at each revolution of
This cam is arranged underneath the clutch sleeve and when it is in its
the shaft.

page_text: raised or normal position it extends across the path of a laterally projecting pin t³
arranged on the clutch sleeve. When the plunger has been raised to its highest
position by the lifting cam, the pin on the clutch sleeve engages against the
main uncoupling cam and moves the clutch sleeve out of engagement with the
driving wheel, thereby arresting the movement of the driving shaft. The parts of
the machine are so timed that when the clutch is uncoupled by the main cam, the
die is arranged on one side of the plunger to permit the operator to apply ink
thereto. The main uncoupling cam is secured to the upper end of a vertically
movable guide rod which slides in upper and lower guides to to, arranged on the
rear sides of the rear standard and the table. The main uncoupling cam is
yieldingly held in its raised or normal position by a spring t' surrounding the guide
rod t and bearing with its ends against the lower guide and a collar secured to
said rod below the upper guide. 18 is a treadle, whereby the main cam is moved
out of engagement with the pin of the clutch sleeve and which is pivoted to the
base and connected with the lower end of the guide rod t by a connecting rod to.
Upon depressing the treadle the clutch sleeve is released from the uncoupling cam
and moves into engagement with the continuously revolving driving wheel
whereby the machine is set in motion.
U represents an auxiliary uncoupling cam whereby the machine is stopped when
the plunger is in its lowest position for the purpose of renewing or setting the
counter die on the plunger. As shown in Figures 12 and 18, this cam is arranged
in advance of the main uncoupling cam and is secured to the free end of a
carrying arm u, which latter is secured to a longitudinal rock shaft u¹, journaled
in bearings u² u³, formed on the front and rear standards. Upon moving the
auxiliary cam into its operative position it stands in the path of the pin of the
clutch sleeve and uncouples the latter during its rotation with the driving wheel.
The auxiliary uncoupling cam is normally held out of engagement with the clutch
sleeve by a spring surrounding the rock shaft u¹ and bearing with its ends against
the rear bearing, and a collar secured to the rock shaft. u is a hand trip cam
whereby the auxiliary uncoupling cam is moved into its operative position. This trip
cam is pivoted to the rear portion of the front standard and bears against a depending
arm, secured to the front end of the rock shaft u. Upon turning the trip cam
so as to move the depending arm inwardly, the auxiliary uncoupling cam is moved
into its operative position as shown in dotted lines, Figure 18. When the machine
is in operation the auxiliary cam remains in its inoperative position as shown in
full lines, Figure 18.
When the machine is at rest the plunger and wiping pad are raised and
the die is between the plunger and the wiping mechanism as represented in
Figures 1, 2, 9, 10 and 12. After the die has been inked by hand, the clutch
sleeve is released from the uncoupling cam by depressing the treadle, whereby
the driving shaft is coupled with the driving wheel and the machine set in
motion. The cam face k on the spherical head engaging with the actuating arm of
the rock shaft moves the die rearwardly underneath the wiper and at the end of its
rearward movement the wiper is pressed upon the die to remove the excess of ink
from the die. During the subsequent forward or return movement of the die the
tape wipes off the face of the die. When the die has reached the limit of its
forward movement it is immediately below the plunger in correct register with the
plunger and while in this position it is momentarily held at rest, the plunger
descends upon the die and embosses the paper previously placed over the die by the
operator. The plunger and wiper are again raised and the die moves backwardly
until it again occupies a position on one side of the plunger. Immediately after
the machine is started the treadle is released and the uncoupling cam is returned
to its raised position by the spring and when the driving shaft has about
completed a single revolution the pin on the clutch sleeve again engages with the
uncoupling cam and uncouples the shaft from the driving wheel, and stops the
machine. The top of the anvil is preferably provided with a stop v against which
the die carrier arm bears at the end of its forward movement.

page_text: When it is desired to produce plain embossing without employing colour, the
inking of the die and the wiping thereof is dispensed with and the die is held
constantly underneath the plunger by a spring bolt or catch W (see Figures 7 and 8),
arranged in a vertical socket W₁ formed in the face of the anvil on the side opposite
to that on which the lug is arranged. This bolt is provided at its upper end with
an abrupt front face and an inclined rear face and is yieldingly held in a raised
position with its upper end projecting above the face of the anvil by a spring arranged
in the socket and bearing against the lower end of the bolt. W' represents a thumb
piece whereby the spring bolt is retracted. This thumb piece is provided with a
shank W arranged in an opening extending from the outer side of the anvil to the
socket W. The inner end of the shank is provided with an eccentric pin W
which is arranged in a recess formed in the side of the spring holt. When the
spring bolt is not in use its upper end is arranged below the face of the anvil and
it is held in this position by the pin of the shank engaging with a notch formed in
the lower side of the recess in the bolt. When it is desired to hold the die against
movement from underneath the plunger the thumb piece is turned so that the
eccentric pin is released from the spring bolt and permits the same to rise above
the face of the anvil. The upward movement of the spring bolt is limited by the
eccentric pin. If the spring bolt is raised when the die is in rear of the same, the
die carrier arm, during its forward movement engages against the rear inclined side
of the spring bolt and depresses the same, and when this arm has passed the spring
bolt the latter will spring upwardly and lock the said carrier arm in its forward
position, underneath the plunger. During the time that the die is held stationary
underneath the plunger, the roller on the actuating rock arm travels continually
in the concentric groove l' on the front end of the spherical head.
Instead of lifting the plunger by a cam and permitting it to descend by gravity,
the plunger may be positively and uniformly raised and lowered by the mechanism
shown in Figures 24 and 25. In these figures X represents a disc secured to the
front end of the driving shaft D and provided with an eccentric pin X'.
y represents a cylindrical shank extending through the plunger and provided at its
rear end with an eccentric pin y¹ which latter is connected with the pin X₁ of the
disc by a link y². Upon rotating the driving shaft the link raises and lowers the
plunger with a uniform movement. Z is a segmental worm wheel secured to
the shank y in front of the plunger and Z is a worm journalled in bearings Z³
arranged on the plunger and engaging with the worm wheel.
When it is desired to raise or lower the plunger for adjusting the counter die to
the height of the dic, the worm is turned by applying a crank or wrench to the
flattened end of the spindle thereof, rotating the shank through the medium of the
worm wheel. After adjustment the shank is held in position by the worm.
This construction, as shown in Figures 24 and 25, is preferably used when
embossing upon very thin paper with a fine or small die as a more uniform
impression is assured without danger of cutting the paper or injuring the die, while
the first described construction is more desirable for heavy work. When the
plunger is connected to the driving shaft by the mechanism shown in Figures 24
and 25 the buffer mechanism is not required and the weight on the plunger and the
springs g' shown in Figures 1 and 2 are also dispensed with.
Having now particularly described and ascertained the nature of this said inven-
tion and in what manner the same is to be performed, as communicated to me
by my foreign correspondents, I declare that what I claim is
1. The combination with the main frame, the die and the vertically movable plunger
guided in said frame, of a lifting cam whereby the plunger is raised and permitted
to drop on the die, and a buffer mechanism which resists the downward movement
of the plunger and which can be shifted out of engagement with the plunger,
substantially as set forth.
2. The combination with the main frame, the die and the vertically movable
plunger guided in said frame, of a lifting cam whereby the plunger is raised and

page_text: permitted to drop on the die, a supporting plate pivoted to the main frame and
provided with buffer plates, and a wedge arranged on the plunger and adapted to
engage with said buffer plates substantially as set forth.
3. The combination with the main frame and the die of buffer plates arranged
vertically on the main frame, a tie rod connecting said plates, a spring surrounding
the tie rod and drawing the plates together, and a vertically movable plunger
provided with a wedge adapted to engage with said plates, substantially as set
forth.
4. The combination with the vertically movable plunger, the driving shaft and
mechanism for actuating the plunger from the said driving shaft, of a rock shaft
arranged below the driving shaft and provided with an oscillating arm carrying a
die, a cam secured to the driving shaft and an actuating arm secured to the rock
shaft and engaging with said cam substantially as set forth.
5. The combination with the vertically movable plunger, the driving shaft and
mechanism for actuating the plunger from the driving shaft, of a vertical rock
shaft arranged below the driving shaft and provided with an oscillating arm
carrying a die, a cam secured to the driving shaft and engaging with an actuating
arm on the rock shaft, and a spring whereby the actuating arm of the rock shaft is
held in engagement with said cam, substantially as set forth.
6. The combination with the vertically movable plunger, the driving shaft and
mechanism whereby the plunger is actuated from the driving shaft of a wiper, a
rock shaft arranged below the driving shaft and provided with an arm carrying a
die, a cam secured to the driving shaft and an actuating arm secured to the rock
shaft and engaging with said cam, whereby the die is oscillated back and forth
beneath the plunger and wiper, substantially as set forth.
7. The combination with the vertically movable plunger, the driving shaft and
mechanism for actuating the plunger from the driving shaft, of a rock shaft
provided with an arm carrying a die, a head secured to the driving shaft and
provided with a cam face and a concentric face, an actuating arm secured to the
rock shaft, and provided with a roller engaging with the said cam face and concentric
face of the head, substantially as set forth.
8. The combination with the vertically movable plunger, the driving shaft, and
mechanism for actuating the plunger from the driving shaft, of a rock shaft provided
with an arm carrying a die, a head secured to the driving shaft and provided
with a cam face and a concentric face an actuating arm secured to the rock shaft
and provided with a roller, and a spring whereby the roller is held against the cam
and concentric faces of the head, substantially as set forth.
9. The combination with the vertically movable plunger, the driving shaft and
mechanism for actuating the plunger from the driving shaft of a wiper a rock
shaft, provided with an arm carrying a die, an actuating arm secured to the rock
shaft, a cam arranged on the driving shaft and engaging with said actuating arm
whereby the die is oscillated below the wiper and plunger and mechanism for
moving the wiper to and from the die, substantially as set forth.
10. The combination with the vertically movable plunger, the driving shaft
and mechanism for actuating the plunger from the driving shaft, of a movable
wiper mechanism a die moving alternately underneath the wiper mechanism and
the plunger, and a cam secured to the driving shaft and connected with the wiper
mechanism for moving the latter to and from the die, substantially as set forth.
11. The combination with the vertically movable plunger, the driving shaft and
mechanism for actuating the plunger, from the driving shaft of a wiper, a rock
shaft provided with an arm carrying a die, an actuating arm secured to the rock
shaft, a cam arranged on the driving shaft and engaging with said actuating arm,
whereby the said die is oscillated below the wiper and the plunger, a wiper cam
secured to the driving shaft and connected with the wiper whereby the latter is
raised from the die and a spring whereby the wiper is pressed against the die when
released from the wiper cam, substantially as set forth.
12. The combination with the plunger and the movable die of a vertically movable

page_text: slide, a bracket pivoted with its outer rear portion to the slide by a transverse
pivot bolt, a pad carrying plate attached with its outer end to the outer end of the
bracket, a bolt adjustably connecting the inner ends of the bracket and plate and a
vertical screw adjustably connecting the front portions of the said slide and bracket,
substantially as set forth.
13. The combination with the plunger, the movable die and the wiping pad, of a
wiping tape arranged on the pad, a feed roller whereby the tape is fed across the
pad, a shaft supporting the feed roller and provided with a ratchet wheel, a disc
mounted loosely on said shaft and provided with a pawl adapted to engage with the
ratchet wheel and an adjustable trip cam whereby the pawl is disengaged from
the ratchet wheel, substantially as set forth.
14. The combination with the plunger, the movable die, and the wiping pad, of a
wiping tape arranged on the pad, a feed roller whereby the tape is fed across the
face of the pad, a shaft supporting the feed roller and provided with a ratchet wheel
a disc mounted loosely on said shaft and provided with a pawl adapted to engage
with the ratchet wheel, a carrying arm adjustably mounted on the shaft, and a trip
cam secured to the carrying arm and adapted to disengage the pawl from the
ratchet wheel, substantially as set forth.
15. The combination with the plunger, the movable die, and the wiping pad, of a
tape arranged on the underside of the pad, a feed roller whereby the tape is shifted
on the pad, a pressure roller pressing against the feed roller and provided with
grooves in its periphery, and stripping fingers extending into said grooves, substan-
tially as set forth.
16. The combination with the plunger, the movable die, and the wiping pad, of a
wiping tape arranged on the underside of the pad, a spool carrying the supply of
tape, a feed roller whereby the tape is shifted, a tension roller supporting the tape
between the spool and the pad, and a spring yieldingly supporting the tension roller,
substantially as set forth.
17. The combination with the driving shaft, the driving wheel and the clutch
adapted to couple the driving shaft and wheel, of a movable die, a vertically movable
plunger actuated from the driving shaft a main uncoupling cam whereby the clutch
is disengaged when the plunger is raised from the die, and an auxiliary uncoupling
cam whereby the clutch is disengaged when the plunger rests on the die, substantially
as set forth.