Improvements in or relating to Punching and Eyeletting Machines.
Year: 1891

page_text: Date of Application, 16th May, 1891
Complete Specification Left, 16th Feb., 1892-Accepted. 19th Mar.,
1862
PROVISIONAL SPECIFICATION.
Improvements in or relating to Punching and Eyeletting
Machines.
1, MARSHALL HENRY PEARSON of The Union Works, Blue Boar Lane,
Leicester, in the County of Leicester, Mechanical Engineer, do hereby declare the
nature of this invention to be as follows:-
:-
This invention relates to improvements in that class of punching and eyeletting
machines such as are described in the Specification of Letters Patent granted to
me the Seventeenth day of September 1885 No. 11,041, and its object is to make
the machine self feeding and capable of being brought into or thrown out of action
by suitable power driving and stopping mechanisms.
According to this invention the swinging frame or cheek (hereafter termed the
cheek) in which the punching spindle works is hinged to the main framework of
the machine (and in bearings of which the eyeletting spindle intermittently
reciprocates) in a similar manner to that described in the abovementioned Specifi-
cation. The cheek carrying the punching spindle is held away from the main
framework by a spring and the distance between the punch and eyeletting dies
may be regulated by two screws or adjustable stops. In order to adjust the
distance between the punch and eyeletting dies to two sizes, the upper of the two
screws or stops is employed for regulating the longer distance, whilst the lower
stop (which may be an adjustable screw in a lever attached to the main trame) is
made to overcome the pressure of the abovementioned spring by working through
half a circle on a cam shaped piece fixed on the swinging cheek. The required
intermittent vertical reciprocating motion is imparted to the punching spindle from
a cato on the driving shaft of the machine through a double ended lever (armed at
the cam end with a runner) fulcrumed to the main framework of the machine. The
punching spindle which may be made adjustable is kept in contact with its actuating
lever by means of a suitable spring which is also employed for retaining the runner
at the opposite end of the fulcrumed lever in contact with the periphery of the cam.
The abovementioned cam first causes the punching spindle to descend and punch
the hole, and when this has been done the punch slightly rises in the material but
not clear of it and remains stationary as regards its vertical movement, until the
lateral feeding motion has taken place for placing the hole in position to be
eyeletted. This is accomplished by means of a second cam, also mounted on the
driving shaft of the machine, acting upon a runner or roller adjustably or otherwise
attached to the swinging cheek. Just before the lateral feeding motion takes place
the lower eyeletting die is made to fall below the level of the punching plate or
bed to permit of the punch moving the material forward as described, and
immediately the punch has completed its horizontal feeding movement the lower
die rises into the hole punched in the material, the punching spindle at the same
time being raised by its spring. The motion for raising and lowering the lower
eyeletting die is obtained from a third cam mounted on the driving shaft of the
machine which acts upon a runner mounted in the end of a double ended lever
fulcrumed to the main framework of the machine, whilst the opposite end is
attached to a sliding cam piece which operates the lower die supporting piece which
is shaped somewhat similar to a horse shoe and works within the horn of the
machine. The eyeletting spindle is operated by a fourth cam mounted on the
driving shaft of the machine which first causes the spindle to descend and take an
eyelet from the chute, insert it in the hole in the material and elench it the
lower die.
upon

page_text: The whole of the cams may be mounted loosely upon the driving shaft of the
machine but are so connected together that they will operate upon their respective
parts in proper order, thereby permitting of them remaining stationary except.
when acted upon by the hereinafter mentioned drivers. Suitable springs may also
be employed for retaining the cams in contact with their runners.
A presser foot is arranged to hold down the material whilst the punch is being
withdrawn, and to keep it in position until the eyelet is clenched. To enable the
operator to conveniently place the material in position, a lever or treadle may be
arranged to cause the presser foot to rise and the lower eyeletting die to descend
out of the way of the material, or the presser foot may be actuated from any
suitable moving part of the machine.
On the driving shaft (to which a continuous rotary motion is imparted from any
convenient source of power) of the machine on which the hereinbefore mentioned
cams are mounted loosely and which are at rest until put into motion by treadles
preferably two in number.
Between the two sets of cams is a disc keyed on the shaft (which rotates with
the shaft) between the eyeletting cans and the punching cam.
Upon this disc is a
steel pin projecting on each side thereof so as to engage with drivers (one on each
side of the disc) which are arranged respectively within the boss of the eyeletting
cam and punching cam.
One end of each driver projects from the said bosses and as it revolves and comes
iuto contact with a curved wedge (hinged to the main framework) which causes the
driver to move away from the pin in the disc. The disc is then free to revolve and
a shoulder on the curved wedge prevents the driver from continuing its motion,
that is, it acts as a positive stop. A slight pressure on the treadle causes the
curved wedge to move and thus releases the driver which is then pressed towards
the disc by a spring, the steel pin in the disc then strikes the driver and causes the
cam to revolve, but before a complete revolution has been made the treadle may
be released, the curved wedge returns to its normal position, and the rotation of the
cam or cams stopped. If the cams are required to make several rotations without
stopping, the treadle may be held down by the foot of the operator. The two
curved wedges are controlled by separate treadles which may be depressed singly
or together as required.
The mechanism for sorting and feeding the eyelets and the upper eyeletting die
may be the same and actuated in the same manner as that described in the
aforesaid Specification and in the Specifications of Letters Patent granted to the
said Marshall Henry Pearson and Charles Bennion Nos. 149 of 1887 and 1317 of
1888.
The cycle of movements is as follows:-
The punch descends and makes a hole, and then rises just clear of the punch
bed, the lower die descends and the punch moves laterally, carrying the material
with it, the lower die rises into the hole punched, and the punch rises and moves
back to its original position, lastly the upper eyeletting die descends, inserts and
clenches the eyelet and rises again to its original position.
T'a
MARSHALL HENRY PEARSON,
By W. Fairburn Hart,
Agent.

page_text: COMPLETE SPECIFICATION.
Improvements in or relating to Punching and Eyeletting
Machines.
I, MARSHALL HENRY PEARSON of The Union Works Blue Boar Lane
Leicester in the County of Leicester, Mechanical Engineer, 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 improvements in that class of punching and eyeletting
machines such as are described in the Specification of Letters Patent granted to
ine in Great Britain the Seventeenth day of September 1885 No. 110,41, and the
object of the present invention is first, to make the machines self feeding that is in
addition to automatically supplying the eyelets to the clenching mechanism, to
intermittently traverse the work forward after the punching and eyeletting
operations or punching operation alone have or has taken place and, second, to
provide suitable power driving and stopping mechanism for actuating and arresting
the motion of the eyeletting and punching spindles.
1 attain these objects by mechanism illustrated in the accompanying drawings in
which-
Fig. 1. is a front elevation of the machine with the stand and treadle arrange-
ment removed.
Figs. 2. and 3 are respectively left and right hand elevations with driving pulleys
and fly wheel removed.
Fig. 4. a plan looking at the top as it appears after the removal of the horn and
eyelet receiving box.
Fig. 5. a part back elevation of machine.
Fig. 6. a section through the cams, disc, and drivers.
Fig. 7. clevations of the cams.
Fig. 8. a part front. clevation showing presser foot arrangement.
Fig. 9. an elevation of means for supporting the lower die.
Fig. 10. a part sectional plan of horn, and method of supporting the lower die.
Figs. 11 and 12, are respectively a part elevation and plan drawn to an
enlarged scale of means for adjusting the position of the punching and eyeletting
spindles.
Figs. 13. and 14 are respectively side and end elevations of drivers.
Figs. 15 and 16 are respectively side and end elevations of curved wedges.
Similar letters refer to similar parts throughout the several views.
A. is the swinging frame or check (hereafter termed check) in which the
punching spindle a (arned with a punch a¹) works.
The cheek a is hinged at a* to the main framework B of the machine. In
bearings of the framework B the eyeletting spindle armed with the upper
clenching,die 2) intermittently reciprocates. C is the eyelet receiving box which
is jointed to the chute D.
All the above described parts may be of the same construction and are operated
(with the exception of the spindles a and b) in the same manner as described in the
aforesaid Specification. The mechanism for sorting and feeding the eyelets (and
the upper eyeletting die) may also be of the same or a similar construction, and
actuated in the same manner as that described in the aforesaid Specification,
and in the Specifications of British Letters Patent granted to the said Marshall
Henry Pearson and Charles Bennion Nos. 149 of 1887, and 1317 of 1888.
The cheek A carrying the punching spindle a is held away from the main
framework B, by a spring, a2, (see Figs. 11 and 12) and the distance between the
punch a', and eyeletting dies 6, 7 may be regulated by two screws a³, a*. In
order to adjust the distance between the punch and eyeletting dies for two sizes,
the upper (3) of the two screws is. employed for regulating the longer distance

page_text: while the lower stop at (which may consist of an adjusting screw a' armed with a
lock-nut-mounted in a lever a carried on a spindle a, fixed in a boss 3, on the
frame B,) is made to overcome the pressure of the spring a³, whenever the end of
the screw a, is made to describe a semi-circle (in the direction of arrow) on the
face of the cam shaped piece a', fixed on the check A. The position of the
screws a³, a', may when desired be reversed.
In the above described arrangement of lower stop a', the head of the spindle a*,
(on which the lever a³, turns) is cut away as shown at Fig. 11. to form a stop
against which a pin a, mounted on the lever a³, works.
The required intermittent vertical reciprocating motion is imparted to the
punching spindle a from a cam E on the driving shaft F (mounted in the
bearings 6, formed on the bifurcated portion 6°, of the framework B) of the machine
through a double ended lever e armed at the cam end with a runner e¹, and
fulcrumed to the framework B at ². The punching spindle a which may be
provided with an adjustable head a** is kept in contact with its actuating lever e
by means of a suitable spring e* which is also employed for retaining the runner e
at the opposite end of lever e in contact with cam E. The cam E first causes the
punching spindle a to descend and punch the hole and when this has been done the
punch a slightly rises in the material but not clear of it and then remains
stationary as regards its vertical movement until the lateral feeding motion has
taken place for placing the hole in position to be eyeletted.
The feeding of the work is accomplished by means of a cam G also mounted on the
driving shaft F, acting upon a runner g mounted in a carrier g', adjustably or other-
wise attached to the check A at a².
Just before the lateral feeding motion takes place the lower eyeletting die b' is
made to fall below the level of the punching plate or bed k to permit of the
punch a moving the material forward as described, and immediately the punch has
completed its horizontal feeding movement the lower die ; rises into the hole
previously punched in the material. The spindle a at the same time is raised by
its spring e*.
The motion for raising and lowering the lower eyeletting die ', is obtained from
a third cam El mounted on the driving shaft F, which acts upon a runner i mounted
in the upper end of a double ended lever I fulcrumed at to the framework B.
The opposite
or lower end of lever I is attached by a link is, to a sliding cam
piece, which actuates the lower die supporting piece J. The supporting piece J
is shaped somewhat similar to a horse shoe (see Fig. 9.) and works within
the horn K of the machine as shown at Figs. 1, 2 and 3. The position of
the lower cycletting die 7, and its supporting piece J may be adjusted by set
screw j.
The cycletting spindle is reciprocated by a fourth cam L, mounted on the
driving shaft F by means of a double ended lever (which is fulcrumed at 12 to the
framework B, and armed at one end with a runner, whilst the opposite end is
slotted to receive a die l, mounted on a piu fixed to the eyeletting spindle) which
first causes the spindle to descend and take an eyelet from the chute D, insert it in
the material, and then to clench it upon the lower die b'.
Suitable springs may also be employed for retaining the cams E, G, H and Lin
contact with the runners e', g, i and 1.
On reference to the drawings it will be seen at Fig. 6. that the cams E, G,
and H are arranged so that they may be secured by set screws M. M so as to
operate together.
The whole of the cams E, G, H and L may be mounted loosely upon the driving
shaft F, but are so connected together that they will operate upon their respective
parts in proper order. They also remain stationary upon the shaft F, except when
acted upon by the drivers N, N¹. That is to say on the driving shaft F (to which
a continuous rotary motion is imparted through driving pulley O, from any con-
venient source of power. O, is a loose pulley and O, a flywheel) on which the
cams E, G, H and L are mounted loosely and remain at rest until put into motion by

page_text: treadle (not shown in the drawings but which may be two in number) and of a
similar construction to those described and illustrated in the aforesaid Specification.
Between the cams E and L, that is the punching and eyeletting cams, is a disc P
which is secured by a set screw p to the shaft F, and is free to rotate with the said :
shaft. Mounted in or upon the disc P is a steel pin p' (which is held in position
by a set screw p³) so as to project on each side of the disc to engage with the
drivers N. N. The drivers are mounted loosely on the hubs of the disc P', and
arranged respectively within the bosses c', and of the punching cam E and
eyeletting cam L. The ends of the drivers N. N¹, project. beyond the
peripheries of the bosses et, and 1, whilst their opposite ends are within the said
bosses, and are provided with the heels n³, n³, on which the drivers oscillate.
As the drivers revolve with the cams E and L they are arranged to come.
separately or simultaneously, in contact with one
or both of the curved
wedges Q, Q', the inner faces of which are shaped to fit the peripheries of the
bosses e, as shown at Fig. 2. Each wedge Q, or Q, is adjustably attached to a
bell crank or other lever g or q' which levers are jointed or centred at g* to a
bracket fixed to the bifurcated portion of the framing B.
When a driver N or N', during its rotation comes in contact with the
wedge Qor Q', it is thereby caused to move away from the pin p' in the dise P.
The disc is then free to revolve without actuating the cams. A shoulder or
projection or 9, is formed on each of the wedges Q. Q', for preventing the
drivers N. N', continuing their rotation that is, each shoulder acts as a positive stop.
A slight pressure on either of the treadles will cause the rod (³, and lever
7 or q¹
to be depressed, in the direction of arrow, for moving one of the wedges Q, or Q,
away from the boss of the cam thereby releasing it from contact with the.
driver N, N', the end n or n' of which is then free to be pressed inwards towards
the disc P by a spring p³ or p, (arranged within the said cams) within the gyration
of the pin. As soon as the pin strikes the driver it causes the cam (to which.
the driver is connected) to rotate. Thus if the eyeletting spindle is required to
be operated, the eyeletting treadle will be depressed thereby withdrawing the
projection, on wedge Q, from its contact with driver N', which permits the
spring p to press the end n' of driver N', within the gyration of pin p', for
operating the cam L. When the other treadle is operated a similar result will be
obtained for punching and feeding the work, namely, on wedge Q being moved.
outwards projection 93, will be released from its contact with the driver N thereby
allowing the spring, to press the end n of driver N into contact with the end of
pin p', for rotating cams E, G, and H. But when desired, before a complete
revolution of the cams has been made the treadle or treadles may be released and
the wedge or wedges returned to its or their normal position, thus forcing the
driver or drivers out of contact with the pin and against the projection or.
projections or g for stopping the rotation of the cam or cams. If the cams are
required to make several rotations without stopping the treadle or treadles
may be held down by the foot of the operator. The two wedges Q, Q₁ are
controlled by separate treadles which may be depressed singly or simultaneously as
required.
A presser foot R is provided to hold down the material whilst the punch a', ig
being withdrawn, and also for keeping the work in position until the eyelet is
clenched. The presser foot R is mounted on a bar carried in bearings, on
the framework B, as shown at Figs. 3 and S. The requisite motion for raising the
presser foot is obtained from the double ended lever e through a set screw r²,
(mounted in a projection e, on the lever e) which is made to engage with the.
end of a lifting bar 2, fulcrumed at 3, to the framework B. The lifting bar 2,
is connected to the presser bar r by means of a pin, which is arranged to work
in the slot hole 7. The presser foot R is retained to and kept down to its work by
a spring In order to move the eyelet chute D to the left, that is, in direction
of arrow 1, whenever the presser foot R is raised (by the means described) a cam³

page_text: is formed on or attached to the presser foot which is arranged to engage with a
pin projecting from the back of the chute D.
A small chute S may also be attached to the punching spindle a for conveying
the punchings away, thus preventing them from falling under the punching or
eyeletting dic.
The cycle of movements is as follows :-
The punch a is first caused by cam E. to descend and make a hole, and then to
rise just clear of the punch bed k; second the lower die 7, is caused by cam H to
descend to permitiof the cam Gto move the cheek A. and punch a', latterly with it;
third, the lower die 6', then rises into the hole punched and the pinch a', rises and
moves back to its original position and lastly, the upper eyeletting die b², is by
cam L caused to descend, receive an eyelet from chute D, and to clench it in the
material, and then to rise to its original position. During the above cycle of
movements, the presser foot is arranged so that it will always press upon the
material except during the time that the punch is in the material, that is the presser
foot is raised as soon as the punch enters the material and it falls when the punch
is raised after the feeding movement has taken place.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed, I declare that what I
claim is
ist. A punching and eyeletting machine having a reciprocating punching spindle
mounted in a cheek hinged to the framework B. said check being held away
from the framework by a spring and cam arrangement, substantially as described
and illustrated at Figs. 11 and 12 of the accompanying drawings.
2nd. The combination in a punching and self-feeding eyeletting machine, of a
cheek A hinged to framework B with a spring a², interposed between said cheeks
and framework a screw a, mounted in a lever a, (armed with a pin a) turning on
a' spindle a³, attached to said framework, and a cam a³, all substantially as and
for the purposes herein set forth.
3rd. In a punching and eyeletting machine such as herein described the employ-
ment of the parts E, F, G, g', H, I, 2, 8, J, L, N, n. n' P, p and p, more
particularly as seen and described with reference to Figs. 1 to 7, for the purposes of
effecting the requisite driving, feeding, holding and stopping.
4th. The combination in a punching and self-feeding eyeletting machine of
cams E, G, H and L mounted on driving shaft F, a disc P, pin p drivers N. N
and springs p, p, for actuating the spindles a and b either separately simultaneously
substantially as herein set forth.
5th. The improved means for effecting a fixed communication between the
driving and one of the other cams E, G, H and L, which consist of the disc P with
its allied parts as shown and working in the manner substantially as herein before
described.
.
6th. In punching and eyeletting machines of the kind herein before described
and shown, the employment of curved wedges Q. Q', having projections formed on
their sides substantially as and for the purposes specified.
7th. The combination in a punching and self-feeding cycletting machine of a
presser foot such as R mounted on bar and lever, with the reciprocating
spindle a and eyelet chute D, substantially as and for the purposes set forth.
8th. The combination of the various parts forming the punching and self-
feeding eyeletting machine as a whole constructed substantially as herein described
and illustrated in the accompanying drawings.
Dated this 13th day of February 1892.
MARSHALL HENRY PEARSON.