Year: 1887

page_text: Date of Application, 11th July, 1887
Complete Left, 10th May, 1888
Complete Accepted, 15th June, 1888
We, JOHN CAVE, PAUL CAVE, AMOS CAVE, FREDERICK CAVE and ARTHUR CAVE,
all of Rushden, Higham Ferrers, in the County of Northampton, Shoe Manufacturers,
do hereby declare the nature of this invention to be as follows
This invention relates to machinery by which a boot or shoe upper can be drawn
over a last and the sole attached ready for being sewn, rivetted, screwed or otherwise
attached to the upper.
The soles are prepared, with the middle soles pressed on, ready to be applied to the
upper by our machine.
In carrying out the invention we adapt a last on a stand on which last we place
the insole the last is brought under a machine provided with a number of pincers
and constructed with a shaft and cams for giving motion to the said pincers which
are made of different shapes to correspond with the last and, so arranged and hinged
as to draw the upper over the last.
In practice we find that one pair of pincers can with advantage be hinged at the toe
and heel respectively and several pairs at the sides.
The edges of the uppers are prepared with suitable cement and when drawn over
the last by the pincers the upper is allowed to remain under pressure for sufficient
time for the cement to harden; for this purpose suitable clamps are provided operated
by the machine.
The boot lasted as above described is now ready for the bottom filling and the shank,
and the partly finished boot is carried or passed along and the sole is laid on by pressure
and cement and is then ready for sewing, rivetting or the like. Or the shank and
bottom filling can be placed on the soles and middles.
G. F. REDFERN,
4, South Street, Finsbury, London,
Agent for the Applicants.

page_text: Machinery therefor.
We, JOHN CAVE, PAUL CAVE, AMOS CAVE, FREDERICK CAVE and ARTHUR CAVE,
all of Rushden, Higham Ferrers, in the county of Northampton, Shoe Manufacturers,
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 :-
Our invention chiefly relates to machinery by which boot or shoe uppers can be
lasted and the soles applied ready for being sewn, rivetted, screwed or otherwise attached
to the uppers, and it comprises the improvements hereinafter described.
In the accompanying drawings:
Figures 1 and 2 are a longitudinal section and plan respectively of a machine
constructed according to our invention.
Figure 3 is a section on the line c,, Figure 1.
Figures 4, 5 and 6 are longitudinal sections drawn to an enlarged scale of the
mechanism for lasting the heel portion of the upper of a boot or shoe, the said mechanism
being represented in three of the positions which it occupies while performing the said
operation.
Figure 7 is a longitudinal section, also drawn to an enlarged scale, of the mechanism
for lasting one of the sides of the upper of a boot or shoe.
Figures 8 and 9 are plans of the mechanism for holding the toe portion of the upper
of a boot or shoe while being lasted.
Figures 10 and 11 are a longitudinal section and plan respectively of the mechanism
for rivetting a sole to a boot or shoe upper after being lasted.
Similar reference letters indicate similar or corresponding parts throughout the
drawings.
a is the frame of the machine and is a duplex last holder which is mounted on
trunnions supported in bearings in the frame .
e, care two lasts which are mounted upon the opposite ends of the holder b and
secured thereto by means of spring catches d, d. Each last is adapted to carry an
upper so that while one upper is being lasted the sole can be applied to the upper
previously lasted. The ends e, e of the holder b which directly carry the lasts are
provided with sockets having internal screws e¹, el, as shewn in Figure 3, engaging
with right and left-hand screw threads on a spindle operated by a hand-wheel
for the purpose of adjusting the position of the lasts as hereinafter described.
9 is an opening in the top of the frame, through which the last, which is uppermost,
projects more or loss.
h is a heel support for holding the upper last firmly while an upper is being lasted
thereon and is a sliding toe support operated by a hand-wheel and screw in an
inclined direction. The support has pivotted therein a block capable of adjustment
by means of a screw and provided, as shewn in Figures 8 and 9, with a recess or
channel having inclined surfaces i*.

page_text: Within the recess or channel is arranged another block provided with spring.
jaws in a recess for receiving the toe of the last and the upper thereon. j is a
spring which normally causes the block to project so that when the slide or toe
support i is operated by the hand-wheel in the direction of the arrow, Figure 1, the
said block, when it meets the toe of the last as shown in Figure 8, is caused to
remain stationary, while the slide i and block 3 continuing to move forward cause
the inclined surfaces to force the jaws 7 inwardly so as to press the upper tightly
upon the toe of the last. In addition to holding the last and upper firmly while
being lasted, the toe-holding mechanism causes the toe of the upper to conform to
exactly the shape of the toe of the last thereby saving the extra hand-labour which is
required to do the same thing when using other lasting machines.
.
k, k, k, are the pincers which are made of shapes corresponding to the last, as
shown in Figure 2, and which we provide for pulling and stretching the upper tightly
over the last in the operation of lasting, the pincers k, k being used at the toe and heel
and the pincers k₁, k¹ at the sides.
Each pair of pincers comprises a pair of jaws ², 1³ hinged together, each
jaw being provided with an extension * pivotted at to a slide 1, and
with a counterweight. The extension is also provided with a cam or inclined
portion. Each of the jaws is also provided with an extension having a cam
or double inclined portion. The two cams and are caused to move against
adjustable rollers, respectively and to thereby operate the pincers when the
slide is moved as hereinafter described. 1³, 13 are screws for adjusting the
rollers and 12.
m is a shaft having the worm m³, and n is a ring having teeth on its periphery which
engage with the said worm.
n', n' are cam slots which are formed in the ring n and engage with rollers o on
the undersides of the slides so that when the said shaft is turned by the hand wheel m²
in the direction of the arrow, figure 2, the ring will be caused to turn and move all the
slides simultaneously towards the last and upper.
P, P are clamps for pressing down the edges of the upper onto the insole as hereinafter
described, the said clamps being attached to the undersides of the slides and formed
as flat or approximately flat springs.
y is a presser adapted to apply a sole to an upper on the lower last.
This presser slides and is capable of adjustment longitudinally in a. block q¹ by
means of a screw q, the said block q' sliding and being capable of adjustment trans-
versely by means of a screw in a bracket . The bracket r slides vertically between
brackets s, s attached to the base plate of the machine and is operated by means of a
lever u mounted upon a shaft u' and having worm teeth which engage with a worm v
on the shaft m and a lever u² also mounted upon the shaft u' and engaging by means
of an adjustable link or connecting rod w with toggle levers w¹, connected to the said
bracket and to the base plate (.
x is a stop capable of adjustment by means of a screw in a bracket ³ depending
from the frame of the machine, the said stop serving to support the pressure upon the
lower last while the sole is being pressed onto the upper thereon; 3 is a lock nut to
fix the screw after having been adjusted.
In applying the uppers and soles the edges or portions of the same which come into
contact are coated with glue, cement or other adhesive material so that they will
adhere thus rendering the use of tingles or tacks unnecessary.
The operation of our machine is as follows, that is to say :-
Assume the slides to be in the position shewn in figures 1 and 2 and the support.i
slightly drawn back. We place upon, say, the last e a boot or shoe upper y and an
insole y in the usual manner and then pass the last with the boot thereon down
through the opening g in the top of the machine, and cause it to engage with one end.
of the holder b by means of its spring catch d. The hand-wheel is then operated to
cause the support to move in the direction of the arrow, figure 1, so as to firmly hold
the last and upper against the heel support has hereinbefore described.
The upwardly projecting edges of the upper having been prepared with suitable
I

page_text: cement, the shaft m is rotated in the direction of the arrow, figure 2, so as to cause the
pincers to grip the said projecting edges of the upper and pull and thereby stretch the
said upper tightly on the last. This operation will be more clearly understood by
reference to figures 4, 5 and 6 which represent the mechanism for lasting the heel of
the upper as hereinbefore described, the mechanisms for lasting the other parts of the
upper being of similar construction and operating in the same manner. Figure 4
represents the normal or open position of the slide 7. If the said slide be now advanced
by means of its eam slot n into the position shown in Figure 5 it will be seen that the
cam or inclined portion of the extension * will come against and pass under the
roller and thereby depress the pincers into the position shewn, the jaws of the pincers
being on either side of the projecting edge of the upper and at the same time the
extension will have moved down onto the roller 1. By continuing the movement
of the slide the cam on the extension of the pincers will ride over the roller
and cause the pincers to grip the upper, which by the continued movement of the slide
will be stretched tightly over the last. The pincers will then be caused to release their
grip by the cam 8 passing over the roller P, and the continued movement of the slide /
will cause the clamp p to press down the edge of the upper onto the insole as
represented in figure 6. The edges of the upper being now all pressed down, the
clamps are kept in their position until the cement is sufficiently hard. When this is
effected the slides are all moved back into their normal or open positions and the
toe-holding mechanism also drawn back by the screw . The last holder is now
turned upon its trunnions so that the last c with the upper thereon rests against the
stop a. The last e with an upper and insole thereon is now inserted through the
opening in the top of the machine. In the meantime a sole
ས་ having the middle sole
pressed on and provided with the shank and bottom filling is placed in the recess in
the presser block y the said sole being cemented on its upper edge round the said
shank and bottom filling. If now the hand-wheel m² be turned as before the upper
which is under the pincers will be lasted and the already lasted upper which, if required,
can also have its turned-down edges covered with cement will have the sole pressed
onto it by the presser q under the action of the levers u, ², the link w and toggle
levers was will be well understood. Instead of the shank and bottom filling being
fixed to the sole they may be fixed to the lasted upper before having the sole pressed
After the sole has been pressed on, the boot or shoe can be removed by depressing
its spring catch d.
on.
=
If required the sole can be further secured by sewing, rivetting or the like.
Sometimes we rivet the sole, and with it the heel, directly to the lasted upper; for
this purpose we provide the mechanism shewn in figures 10 and 11 which, as will be
seen, is somewhat similar to the mechanism for pressing the cemented sole on, as
shewn in figure 1, and is fixed in the same position on the bed plate of the machine.
The block is, however, made in two parts, the upper part of resting on springs
attached to the lower part q. The part is provided with plungers q' which work
through holes q in the part 9. If, now, rivets be placed in the holes q* above the
plungers q' and a sole with heel attached be placed in the recess in the part of the
block q, by moving the block with the sole thereon upwards in a similar manner to
that hereinbefore described, the said sole and the part of the block will be first
caused to bear against the lasted upper. During the continued upward movement of
=
through the holes and force the rivets into the sole and lasted upper, thereby
completing the boot. By employing more holes and plungers we can, if required,
drive studs or nails into the sole of the boot at the same time that we rivet the
sole on.
Having now particularly described and ascertained the nature of our said
invention and in what manner the same is to be performed we declare that what
we claim is :-
1. In the manufacture of boots and shoes, the use of cement for securing the soles
and unnare tacother without the use of tingles or tooks

page_text: 2. In the manufacture of boots and shoes, cementing the uppers to the insole pre-
paratory to securing the outer soles by sewing, stitching or otherwise, substantially as
described.
3. In a machine for use in the manufacture of boots and shoes, the combination with
lasting mechanisin, of mechanism for applying or pressing on an outersole to an upper
previously lasted, substantially in the manner described.
4. In a machine for lasting boots and shoes the employment of devices for auto-
matically gripping the edges of the upper so as to pull the upper over the last.
5. The gripping mechanism constructed and arranged to operate substantially as
hereinbefore described.
6. In a machine of the kind referred to in the third claiming clause, the employment
of a duplex last holder, arranged substantially as herein before described.
7. The combination with the duplex last holder, of mechanism for securing the
sole by means of cement, rivets, nails or the like, substantially as herein before
described.