Improvements in or relating to Cutting Presses Employed in the Manufacture of Boots and Shoes.
Year: 1895

page_text: Date of Application, 28th Feb., 1895
Complete Specification Left, 28th Nov., 1895-Accepted, 8th Feb., 1896
PROVISIONAL SPECIFICATION.
Improvements in or relating to Cutting Presses Employed in the
Manufacture of Boots and Shoes.
We, ROBERT BEST MILLS, Engineer and ELIZABETH MILLS of Crown
Works, Upper Field Street, Kettering, do hereby declare the nature of this inven-
tion to be as follows:-
This invention consists of improvements in or relating to clutches for use with
boot and shoe machinery.
In various boot and shoe machines, such as those used for what is technically
known as "clicking " an intermittent movement of the head of the machine is
desirable, whilst the provision of means for automatically arresting the motion of
the machine when the operator removes his foot from the treadle is also requisite.
Our invention has the two points just mentioned for its object, first the provision
of a clutch of the character hereinafter described and secondly the provision of
menus for arresting automatically the movement of such clutch and thereby
decreasing the possibilities of accidents.
To carry out our invention we place on the driving shaft of a "clicking" machine,
a fly wheel and pulley loosely carried thereon and movable along the said shaft.
On the outer end of this shaft we place a pulley tightened thereon, the periphery of
said pulley being bevelled and leather faced to engage the inner side of the
periphery of the driving pulley at such times as the latter is moved along the shaft
to contact therewith.
The boss of the fly-wheel and pulley (which are preferably in one casting), is
recessed to receive the anti-friction rollers carried on the sides of the actuating
lever. The actuating lever also carries on its upper face a stud upon which is fixed
a stud to carry a cone revolving loosely thereon, the said cone being adapted to
enter a recess in the face of a cam placed at a right angle thereto and carried on
the eccentric shaft of the machine.
Fixed intermediate of the hoss of the combined fly-wheel and pulley and the
framing of the machine is another pulley which acts as a brake to the driving shaft,
when the operator's foot is removed from the treadle, by bearing against the inner
face of a recess in the side of the framing of the machine.
The levers for actuating and stopping the clutch are arranged as follows:-
On the horizontal arm of the actuating lever before mentioned and at a convenient
distance from the point where it is pivotted, a stud is fixed adapted to carry a roller
the said roller being in contact with and actuated by means of a star or other wheel
& at the side of this wheel is placed a ratohet wheel operated by a clawker carried
on the side of an intermediate lever. The said wheels and intermediate lever are
pivotted at a convenient point on the side of the framing of the machine and the
said lever is also connected at its outer end to a link whose lower end is connected
to the end of the treadle lever by which the whole of the mechanism described is
actuated,
A suitable spring connects the horizontal arm of the actuating lever and the
treadle to keep the actuating lever in position for being operated when desired.
Dated this 28th day of February 1895.
W. P. THOMPSON & Co.,
31 High Holborn, W.C., Patent Agents for the Applicants.

page_text: Improvements in or relating to Cutting Presses Employed in the
Manufacture of Boots and Shoes.
We, ROBERT BEST MILLS, Engineer, and ELIZABETH MILLS, of Crown.
Works, Upper Field Street, Kettering in the County of Northampton do hereby
declare the nature of this invention and in what mauner the same is to be
performed to be particularly described and ascertained in and by the following
statement:-
This invention bas reference to cutting presses used for stamping out the soles
aud heels for boots and shoes, and embolies improvements hereinafter fully
described.
In the class of machines referred to, a vertically reciprocating head is employed
to force the knives through the leather to produce the soles and heels mentioned
and the object of the present invention is to devise mechanism which acting in
conjunction therewith will cause the reciprocating head to come to rest at the
completion of its stroke and when in its highest position, so that it is prevented:
from further movement until actually set in motion by the operator.
The invention will be fully understood from the following further description in
reference to the accompanying drawing wherein
Figure 1 is a side elevation partly in section of a cutting press of a well known
type, having a reciprocating head and our improvements applied thereto.
Figure 2 is a back elevation taken on the line X X of Figure 1 the upper part
of the press being removed.
Figure 3 is a detail view hereinafter referred to.
A represents the reciprocating head of the machine which is raised and lowered
by means of an eccentric rod A Fig. 1 on the shaft B driven by a toothed wheel B¹
thereon engaging a similar wheel C' on the driving shaft C all arranged and
operating in the well known manner.
According to this invention there is keyed fast on the end of the driving shaft a
bevelled pulley D the periphery of which has a leather facing D'.
Adjacent thereto is the driving pulley E adapted to fit over the pulley D and
formed preferably as an integral part of a fly wheel E which both revolvo as one
wheel and are loose on the shaft and free to move to and fro thereon.
When the driving pulley E is moved against the pulley D the driving shaft is
caused to revolve and when they become disengaged the driving shalt becomes
quiescent.
The movement to and fro of the combined driving pulloy and fly-wheel for these
purposes is effected through the medium of an arched lever Fshown detached in a
Figure 3 provided with two anti-friction rollers F¹ which are located one each side
in a circumferential groove E 2 formed in the boss E 3 of the combined fly wheel
and pulley.
The legs of the arched lever are connected at their lower ends by a spindle F2
which is located in a tubular bearing F3 and forms the fulcrum of the said
lover.
Fastened on to the end of the spindle F 2 is a curved lever G (referred to in the
Provisional Specification as a horizontal arm) furnished with a pin and antifriction
roller G' thereon the latter being maintained in contact with a cam wheel H by a
spring H' one end of which is connected to the lever G and the other end to the 4
side of the tubular pillar or standard A 2.
As the roller G follows the undulating periphery of the cam wheel H the arched
lever F is rocked to and fro. on its fulcrum F2 and moves the combined fly-wheel
and pulley E E into and out of contact with the fixed pulley D as before
described.
5

page_text: The cam wheel H has attached to its side and receives motion from a ratchet.
wheel J Figs. 1 and 3 both of which wheels are rigidly fixed on an arbor or
spindle K located in a tubular bearing K' attached to the pillar A 2.
The ratchet wheel J is actuated by a clawker J' pivotted to the side of a plate J 2.
loosely carried on the arbor K the said plate being furnished on its face with a pin
which enters a boss on the upper end of a link L whose lower end is attached to.
the treadlo lever M.
On the upper end of the arched lever is an antifriction roller N which when the.
reciprocating head of the machine is quiescent and in its highest position is located
in a recess O' formed in the face of a cam O carried on the end of the usual'
eccentric shaft B.
During the time between the commencement and finishing of the stroke of the
reciprocating hend the roller N rides on the face of the cam O and immediately.
upon the completion of the stroke and when the head is at its highest point the said
roller enters the recess O¹ in the cam and in order to bring the machine to a stand--
still at this point a bevelled leather fuced pulley P is feathered on the driving shaft
and wedged on to the boss E3 so that as the roller of the arched lever moves into.
the recess of the cam the said pulley is forced into frictional contact with the
inner edge R of an opening in the plate R' and brought to rest thereby.
The action of the machine is as follows:-
Upon the operator placing his foot upon the treadle lever M the link L is
elevated and causes the pawl J' to move the ratchet wheel and the cam wheel'
forward so that a projection on the latter passes under the roller G¹ on the lever G
causing the latter to rock the arched lever F forward to withdraw the roller N from,
the notch O in the cam O and thereby place the friction clutch or pulley E into.
contact with D and set the driving shaft C in motion.
The spur wheels C'B' thereupon impart motion to the eccentric shaft 13 and upon.
the latter commencing to move, the face or rim of the cam O revolves in contact
with the roller N on the arched lover F thus keeping the latter in that position.
until the eccentric shaft B has made a complete revolution by which time the head
through the medium of the rod A' will have made a complete stroke or down and
up movement.
At this point the arched lever F through the indirect influence of the spring H
will be brought back to its original position so that the roller N enters the notch in
the cam O, the friction clutch pulleys E and D disconnectel and the clutch
pulley P moved against the edge R of the recess in the plate R' and brings the
machine to rest as before described.
To again set the machine in motion and cause the reciprocating head to descend.
upon the cutting knife the operator places his foot upon the treadle as before.
Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed we declare that what we
claim is :-
1. In a cutting press of the character described the combination of a reciprocating.
head and means interposed between it and the driving shaft to actuate the said
head, fast and loose friction pulleys on the said shaft, a lever such as F interposed
between the said loose pulleys, and meaus to actuate the said lover to cause the
loose pulleys to engage the fixed pulley D and disengage the recess R and vice versa:
to revolve the driving shaft or bring it to rest substantially as described.
2. In a cutting press of the character described the combination with the driving
shaft and means interposed between it and the reciprocating head to actuate the
latter, of friction pulleys on the said shaft, a lever interposed between the said loose
pulleys, a spring controlled lever connected to the said interposed lever, a cam wheel.
to actuate the spring controlled lever, a ratchet wheel, actuating clawker and treadle
lever to operate the said cam wheel substantially in the manner and for the purpose-
described.
3. In a cutting press of the character described the combination with the driving.

page_text: shaft and means interposed between it and the reciprocating head to actuate the
latter, of friction clutch pulleys on the said shaft, a lever such as F interpose<l
between the said loose pulleys, a cam such as O and recess therein and a lever such
ns G and means for actuating the latter to cause the lever F to move the clutch
pulleys into and out of operative position substantially as and for the purpose
described.
4. In a cutting press of the character described the combination with the driving
sbuft and means between it and the reciprocating head to actuate the latter, of
friction pulleys on the said shaft a spring controlled lever interposed between the
loose pulleys and means for actuating the said lever to place the said pulleys in
operative position, a cam such as O arranged to maintain the said lever and pulleys
in operative position during the time the head is moving down and up, a recess in
the said cam in which the said lever enters and withdraws the pulleys from operative
position at the completion of the stroke of the head and when the latter is at its
highest position substantially as described.
-
5. In a cutting press of the character described the combination of mechanism
constructed, operating and arranged substantially in the manner described and
illustrated in the accompanying drawings.
Dated this 20th day of November 1895.
ROBERT BEST MILLS.
ELIZABETH MILLS.
Boult & Wade,
Agents for the Applicants.
ROBERT BEST MILLS.
ELIZABETH MILLS.
Boult & Wade,
Agents for the Applicants.