Improved Apparatus for Paring and Channelling Soles of Boots and Shoes.
Year: 1892

page_text: Date of Application, 23rd Apr., 1892
Complete Specification Left, 23rd Jan., 1893-Accepted, 25th Feb., 1893
PROVISIONAL SPECIFICATION.
Improved Apparatus for Paring and Channelling Soles of Boots
and Shoes.
I, HENRY WALTER PEAL, of 487 Oxford Street, London, Shoe Manufacturer,
do hereby declare the nature of this invention to be as follows:-
My invention consists of a machine for paring the edges of the soles of boots &
shoes to the form desired while they are on the last.
It is found that the soles of shoes when cut out by dies or knives do not conform
with sufficient exactness to the shape of the shoe, to serve for work of the highest
character. And in order to produce the exact conformity desired, after having sewn
ou the welt or middle sole as the case may be, I put on & block to shape a sole cut
out roughly to the form of the last. I then apply the shoe to my newly invented
machine, the subject of this application, & by it I cut the sole round the waist &
forepart to a shape correctly corresponding to that of the shoe.
This machine is furnished with a knife or cutter moving up & down in a vertical
direction also with a presser foot, to press on the surface of the work & a feed move-
ment to keep the work advancing towards the knife. Also an edge guage or table,
to go between the upper & the welt against the already sewn inseam which unites
the welt or middle sole to the shoe, & to both guide & assist in supporting the
work.
I make the knife with a cutting edge along one side & also at the point. I supply
the presser foot with a guage to determine the angle at which the shoe is to be held
& I may also combine with the presser foot the feed motion making the presser foot
also a feeding foot. I make the edge guage or table of a section suitable to enter
between the upper & the welt & to take against the inseam & of a circular shape &
I carry it on a pin placed eccentrically to the periphery of the guage the object
being that by turning the guage into different positions the inseam shall be guided
along at a greater or less distance from the knife so as to leave the breadth of the
edge of the sole outside the inseam wider or narrower as may be desired. I provide
the edge guage with suitable catches or adjusting arrangements to keep it in a
position suitable to give the width of edge desired & I arrange to fix the edge guage
at such an angle with the line of motion of the knife as I find suitable for the work
in hand at the time.
In certain classes of work it is desirable to lay the line of stitches that unite the
sole to the welt or middle sole in a channel which should follow the outline of the
sole.
In order to form this channel I use a machine very similar to that above
described but provided with a channel cutting knife in place of the vertically
moving knife above named & I may, if found desirable, employ, instead of the
inseam, as above described, the already cut edge of the sole as a guide.
D
$11902

page_text: COMPLETE SPECIFICATION.
Improved Apparatus for Paring and Channelling Soles of Boots
and Shoes.
I HENRY WALTER PEAL, of 487, Oxford Street, London, Shoe 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:-
My invention consists of a machine for paring the edges of the soles of boots and
shoes to the form desired while they are on the last.
It is found that the soles of shoes when cut out by dies or knives do not conform
with sufficient exactness to the shape of the shoe to serve for work of the highest
character. And in order to produce the exact conformity desired, after having sewn
on the welt or middle sole as the case may be, I put on, and block to shape a sole
cut out roughly to the form of the last. I then apply the shoe to my newly invented
machine, the subject of this application, and by it I cut the sole round the waist and
forepart to a shape correctly corresponding to that of the shoe.
This machine is furnished with a knife or cutter, moving up and down in a vertical
direction, also with a presser foot, to press on the surface of the work, and a feed
movement to keep the work advancing towards the knife. Also an edge guage or
table to go between the upper and the welt against the already sewn inseam which
unites the welt or middle sole to the shoe, and to both guide and assist in supporting
the work. I make the knife with a cutting edge along the side, and also at the
point. I supply the presser foot with a guage to determine the angle at which the
shoe is to be held, and I may also combine with the presser foot the feed motion
making the presser foot also a feeding foot. I make the edge guage er table of a
section suitable to enter between the upper and the welt and to take against the
inseam, and of a circular shape, and I carry it on a pin placed eccentrically to the
periphery of the guage, the object being that by turning the guage into different
positions the inseam shall be guided along at a greater or less distance from the
knife so as to leave the breadth of the edge of the sole, outside the inseam wider or
narrower as may be desired. I provide the edge guage with suitable catches or
adjusting arrangements to keep it in a position suitable to give the width of the edge
desired and I arrange to fix the edge gauge at such an angle with the line of motion
of the knife as I find suitable for the work in hand at the time.
In certain classes of work it is desirable to lay the line of stitches that unite the
sole to the welt or middle sole in a channel which should follow the outline of the
sole. In order to form this channel, I use a machine very similar to that above
described but provided with a channel cutting knife in place of the vertically
moving knife above named and I may, if found desirable employ instead of the
inseam as above described, the already cut edge of the sole as a guide.
My invention is illustrated by the accompanying drawings in which,
Figs. 1. and 2 are a front and side elevation respectively of my paring machine.
Figs. 3. and 4 are views shewing the modifications made when used for
channelling.
Figs. 5, 6, 7, 8, and 9 are details.
A. (Figs. 1 and 2) is the frame, B. the driving shaft, C. the pulleys, D. D' the
driving shaft bearings, and E. the cam which gives motion to the various working
parts of the machine.
The cam E is furnished with an eccentric groove a in its front face for giving
motion to the knife bar a' and knife a². The latter is cramped fast in the lower end
of the bar a¹ by a set screw a³ and the bar is free to slide vertically in bearings a², a
prepared for it in the frame A. A block a furnished with a roll a which
engages the groove a is cramped upon the bar a¹ by means of a set screw a³. To
regulate the height of the knife and to prevent the same moving upwards under the

page_text: pressure due to the work it has to perform a long screw a³ is provided which sets
down against the end of the knife at a and the knife bar a¹ is made hollow to
receive it.
The boot on its last y is supported on a table 6 which also acts as an edge gauge
having a thin edge b' which enters between the upper a¹ and the welt against the
already sewn inseam or sewing which unites the welt, the insole and the upper.
The table b is mounted on a pin in a block the table edge being eccentric to
the pin In the upper surface of the table band near the edge is a series of
narrow slots or depressions 64 (see Fig. 6) arranged concentrically with the pin 62
and therefore at varying distances in from the edge b'. These slots extend about
half the circumference of the table and are for the purpose of receiving the point
or end edge of the knife a² when it passes through the edge of the boot sole. By
turning the table upon the pin ² anyone of the slots 6* may be brought under the
knife a and according as the distance from a slot to the edge is wider or
narrower so will the knife a cut further from or nearer to the inseam and leave a
wider or narrower welt a upon the boot c. To prevent the table 6 from revolving
during the paring operation notches (see Fig. 6) are formed in the edge of the
table, on the opposite side to the slots, and a spring catch 66 is provided to engage
the notches, being carried on the block. So that the table b. may be accurately set
in regard to the knife a' the block is arranged to slide forwards and backwards
in a way b' prepared for it in the frame A wherein it may be cramped fast by means
of a screw ³.
For the purpose of holding down and feeding forward the work a presser foot c
is provided which is carried on the lower end of a bar cand operated by cam
surfaces formed upon the periphery of the cam E. The bar c is free to slide
up and down in a swing arm c which is pivotted on pins cand e carried in the
frame A. The raising of the presser foot c is performed by the cam surface c³ acting
upon a cam roll e' carried on one end of a lever which is mounted on a pin c³ in
the frame A and furnished at its other end with a pawl c¹. The pawloon rising
engages teeth e formed in a block c" attached to the bar c' and raises the presser
foot c and on the descent of the pawl eo an incline c¹³, carried on the swing arm c*
and upon which the pawl co slides, withdraws the pawl co from the teeth c¹¹ so as
to release the bar which is then drawn down upon the work by a spring c¹4
provided for the purpose. A spring c" keeps the pawl co up to the incline cand
another spring ed maintains the cam roll in contact with the cam and also draws
down the pawl c¹º. This arrangement gives a sufficient lift to allow of the feeding
movement taking place and also accomodates varying thicknesses of work.
The feeding of the work is performed by the cam surface acting upon a roll c
mounted at the end of an extended portion e18 of the swing arm e. A spring c"
being provided to maintain the roll c" in contact with the cam.
The movement of the swing arm c' and consequently the amount of the feed is
regulated by a set screw d against which the arm takes in its outward movement
and which screw is set fast by a jam nut d².
To raise the presser foot c for the purpose of inserting the work a hand lever e is
provided being carried upon a pin e' in the frame A and furnished with a stude³
which engages a collar e provided upon the bar c¹.
The presser foot is supplied with a gauge which determines the angle at which
the shoe is to be held. It is hinged on a pin f¹ and may be turned up out of the
way as shewn in dotted lines. This gauge may also be constructed as shewn in
Fig. 5 being carried on a fixed part of the frame A. and adjustable up and down by
means of a screw f³.
The machine used for channelling the sole is constructed as shewn in Figs. 3
and 4.
A is the frame B' the driving shaft and E¹ the cam. The channelling knife g
which is of suitable shape at the cutting end is cramped by means of a nut g¹ in a
holder which is again carried in the second holder cramped fast by a set
screw 9 in the frame A': by this arrangement the knife can be set at any desired

page_text: angle to the boot sole and at any desired height. The presser foot c, bar c', cams c³
and swing arm e' roll c' lever ca pin c pawl c20 teeth e incline c¹³ roll c, screw_d
and hand lever e are all of similar construction and mode of action to those already
described except that as the cam groove a is no longer required to operate the knife
the cam E' is made of much smaller diameter and the other parts correspondingly
reduced in dimensions.
In channelling the slots 6' are not required in the table b nor need the latter be
adjustable backwards and forwards.
When the pared edge of the sole is used as a guide the table is made of the form
shewn in Figs. 8 and the edge of the sole taking against the part h and the welt
being supported on the lip .
The machine is operated in the following manner. A belt is applied to the
pulley C for driving the machine.
The table 6 is set by the operator in such a position as will suit the work in
hand. The presser foot c is raised by the handle e and the edge of the sole is
inserted between it and the table b. The knife a is driven down by the cam E
through the work and on its ascent the presser foot is lifted by the pawl cand
moved backwards by the swing arm & falling again when released by the pawl c¹0
and feeding forward the work before the next descent of the knife a. The
operations are repeated until the paring of the edge is completed. The presser
foot c is raised sufficiently by the pawl co to allow of feeding an increasing thickness
of sole as when passing from the waist to the forepart and as the pawl co is always
on its descent entirely released from the teeth c" by the incline the presser foot c
is then free to descend under the influence of the spring until it reaches the work
whether such be of increasing thickness as above described or decreasing as when
passing from the forepart to the waist.
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 :
In a machine for paring the soles of boots and shoes:
1. Using the inseam as the guide to which the edge is pared. Substantially as
described.
2. The table or edge gauge mounted so that it can be turned into various positions
and having an eccentric edge. Substantially as described.
3. Slotting the table or edge gauge so that the knife point may pass through the
work without damage. Substantially as described.
4. The arrangement for preventing revolution of the table during the paring
operation. Substantially as described.
5. The arrangement for setting the table backwards and forwards in relation to
the knife. Substantially as described.
6. The arrangement for regulating the position of the knife and for preventing
upward movement of the same. Substantially as described.
7. The arrangement for raising and lowering the presser foot so as with a small
amount of lift to accomodate varying thicknesses of work. Substantially as
described.
8. The arrangement for feeding forward the work and the set screw for regulating
the amount of the feed. Substantially as described.
9. The gauge for determining the angle at which the shoe is held constructed in
either of the ways herein described and illustrated.
10. The combined machine as herein described and illustrated for paring the
edges of the soles of boots and shoes.
In a machine for channelling soles while on the boot or shoe.
11. Using the inseam as the guide to which the channel is cut. Substantially as
described.
12. Using the pared edge of the sole as the guide for cutting the channel. Sub-
stantially as described.

page_text: 13. The table or edge gauge mounted so that it can be turned into various
positions and having an eccentric edge to guide the sole and a lip to support the
same. Substantially as described.
14. The arrangement for carrying the channelling knife by which the same can
be set at any desired angle to the boot sole and at any desired height. Substan-
tially as described.
15. The table or edge gauge mounted so that it can be turned into various
positions and having an eccentric edge. Substantially as described.
16. The arrangement for preventing revolution of the table during the channelling
operation. Substantially as described.
17. The arrangement for raising and lowering the presser foot so as with a small
amount of lift to accomodate varying thicknesses of work. Substantially as
described.
18. The combined machine as herein described and illustrated for channelling the
soles of boots and shoes.
Dated the 21st day of January 1893
W. H. DORMAN,
Agent for Applicant.