IMPROVEMENTS IN APPARATUS OR MACHINERY TO BE USED IN THE MANUFACTURE OF BOOTS AND SHOES
Year: 1877

page_text: LETTERS PATENT to Bristow Hunt, of Serle Street, Lincoln's Inn, in the County
of Middlesex, Gentleman, for the Invention of "IMPROVEMENTS IN APPARATUS
OR MACHINERY TO BE USED IN THE MANUFACTURE OF BOOTS AND SHOES." (A
communication from abroad by Samuel Henshall, of Philadelphia, Pennsylvania,
in the United States of America)
Sealed the 1st September 1877, and dated the 31st March 1877.
PROVISIONAL SPECIFICATION left by the said Bristow Hunt at the Office of
the Commissioners of Patents on the 31st March 1877.
BRISTOW HUNT, of Serle Street, Lincoln's Inn, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN APPARATUS OR MACHINERY TO BE USED IN THE
MANUFACTURE OF BOOTS AND SHOES." (A communication from abroad by Samuel
Henshall, of Philadelphia, Pennsylvania, in the United States of America.)
This Invention relates to improvements in apparatus or machinery used in the
manufacture of boots and shoes, for channelling the sole, for turning the edge of the
sole after it has been channelled, and for sewing the sole and upper together.
The apparatus for channelling the sole consists of a base or table in bearings, on
which turns a shaft carrying at its front end a bevil wheel which gears into a pinion
formed in or secured to the under side of a rotary bed on which the work rests as it
is being operated upon.
.
To a standard at the rear end of the table is hung the rear end of an arm having
bearings for a second shaft, which carries at its front end a toothed or roughened
feed wheel. It should be understood that both shafts are so geared together, and
that the feed wheel is of such a diameter that the periphery of the said wheel and
that part of the face of the rotary bed immediately below the wheel travel at the
same speed.
Two cutting knives are employed, one for cutting the channel in the sole and tho
other for cutting the groove. The channelling knife is secured to the lower end of
a bar, which is adapted to a guiding slot cut in the front end of the said arm, and
has a threaded stem passing through a bracket upon the arm and provided abovo
7.77

page_text: with a thumb nut. Around this stem is coiled a spring which bears at one end
upon the braket and at the other upon an under nut adapted to the threaded
portion of the stem. By opening the thumb nut the sliding bar and consequently
the channelling knife can be raised or lowered at pleasure, and by operating the
under nut the pressure of the spring upon the slide cam can be easily regulated.
The grooving knife is carried by a sliding bar adapted to a slot in a fixed frame at
the front of the machine, this frame having arms which serve to steady the said
arm in its vibrating movement. This vibrating movement of the said arın is
necessary, partly on account of irregularities in the thickness of the soles to be
operated upon, and partly because the front end of the arm has to be elevated to
permit the introduction and withdrawal of the work. The elevation of the outer
end of the arm for the latter purpose is effected in the present instance by means
of a lever, the long arm of which is arranged so as to be readily depressed either
by hand or treadle, while its short arm engages with a pin on an arm hung to the
said arm, so that by depressing the long arm of the lever the outer end of the
said arm will be raised, and on releasing the lever the said outer end will be
depressed.
In order to insure the raising of the sliding bar which carries the grooving knife
at the same time that the said arm is raised there is used a lever hung to the said
fixed frame, the short arm of the lever engaging with a pin on the sliding bar, while
its long arm is acted upon by a set screw carried by an arm of the lever mentioned
in the preceding paragraph. Both this sliding bar and the said arm are acted upon
by springs, which tend to maintain the said bar and arm in their lowest positions,
the downward movement of the bar being limited by a set screw, while that of the
arm is determined by the lower end of its said depending arm coming into contact
with the table.
In ordinary channelling machines the channelling knife is rigidly carried by the
said arm, so that the depth to which it enters the leather is governed merely by the
depth to which the feed wheel penetrates, the result being a deep cut when the
leather is soft and a shallow cut when the leather is hard.
Another objection to the ordinary machine is that the channelling knife must be
adjusted to suit the different thicknesses of soles, so that the attention of a skilled
workınan is required in running tho machine.
It will be seen that in this machine the bar carrying the channelling knife is in
its vertical movement entirely independent of the feed wheel, the depth of the cut
made by the knife depending solely upon the extent to which the said knife
projects beyond the end of the bar, which may be furnished with an anti-friction
roller, so that the solo will move freely beneath the bar without being indented
thereby.
It will also be observed that as this bar is acted upon by a spring it will readily
yield to suit different thicknesses of soles, the usual tedious adjustment being entirely
dispensed with.
The depth of the groove cut by the grooving knife may also be regulated by
adjusting the said set screw so as to limit the downward movement of its sliding
bar.
The apparatus for turning the edge of the sole after it has been thus channelled
consists of a base, near each end of which is a vertical standard, and in the latter,
near the bottom, are formed bearings for a shaft, on the front end of which is
formed a collar, the shaft beyond this collar turning in a lug on the base.
Hinged to the rear standard of the machine are two frames, the outer ends of
which slide in and are guided by the front standard; one of these frames carries a
second shaft and the other a third shaft. The second shaft is the driving shaft, and
carries at the front end a feed wheel, while the third shaft carries a disk occupying a
certain position in relation to the feed wheel. The three shafts are so geared
together that the peripheries of the collar, the feed wheel, and the disk move at the
same speed.
The vertical position of the feed wheel can be varied by operating a lever hung

page_text: to the frame of the machine, and having a short arm connected to the front end of
the hinged frame carrying the feed wheel, and the vertical position of the disk can
also be changed at pleasure by operating a lever, the long arm of which is connected
to a suitable treadle, while the short arm acts upon a pin carried by a rod secured
to the frame carrying the disk. This rod extends down through the base and is
acted upon by a spring, which tends to constantly depress the saine, a similar spring
rod being attached to the other frame.
In operating on a sole these levers are first moved so as to raiso the feed wheel
and disk; the sole is then inserted between the feed wheel and collar to such an
extent that its outer edge is just beneath the disk; this is determined by a stop.
The feed wheel is then allowed to descend, so as to clamp the sole firmly between
its edge and that of the collar, and the disk finally descends, so as to turn down the
edge. The turning of the feed wheel causes the passage of the sole through the
imachine, and this movement is continued until the entire edge of the solc has been
operated upon, when the feed wheel and disk are raised, the sole removed, and a new
one inserted.
By employing a feed wheel and turning disk which are independent of each other,
as regards vertical movement, they can operate on the sole much more advantageously
than when carried by the same shaft, as hitherto.
The apparatus for sewing the upper and sole together consists of a framework
and a driving shaft carrying two scroll cams, a bevil wheel, and a cam wheel, which
serve to impart movement to the various working parts of the machine in the
following manner:-A crank pin on the face of the cam wheel is connected by
means of a rod to a slide secured to the needle bar, the latter carrying a hooked
needle to which the required vertical reciprocating movement is thus imparted as
the cam wheel revolves. The edge of the cam wheel acts upon an anti-friction
roller carried by a slide secured to the lower end of a spring rod carrying at its upper
end a block, to which is pivotted the upper end of a plate, the lower end of which
extends down to a point adjacent to the base of the machine and is provided with
a jaw. Immediately adjacent to the face of this plate is arranged a second similar
plate, which carries at its lower end a jaw and is guided by lugs on the first-
inentioned plate, and is vibrated with the same, as described herein-after, but is
entirely independent of the said plate in its vertical movement, as it is slotted
vertically at the top, where the pivot pin passes through it and receives its vertical
movement from the said block through the medium of a lever, vertical bar, and
connecting plate, the latter having a curved slot to permit the vibration of the plate.
It will thus be seen that vertical movements in opposite directions are imparted to
the said plates, the latter falling when the other rises, and vice versa.
Projecting from the front edge of the table of the machine in advance of the said
jaws is a finger which, in the present instance, forms part of a bell-crank lever, and
is arranged in line vertically with the needle bar, being perforated for the passage of
the needle.
The bell-crank lever, of which the finger forms a part, is hung to a bracket on the
frame of the machine, and its short arm is connected to a rod, the opposite end of
which carries an anti-friction roller adapted to the groove in one of the scroll cams
on the driving shaft, this groove being of such a character that the movement
herein-after described will be imparted to the finger.
The long arm of the bell-crank lever carries a spring lasting arm, which has at
the outer end a roughened block for bearing against the edge of the upper, and
holding the same firmly against the sole whilst the shoe is being sewn.
The bevil wheel on the driving shaft imparts motion to two bevil pinions,
one of which is carried by the lower end of a vertical shaft, and the other by the
upper end of another vertical shaft.
The first of these shafts carries at its upper end a disk having in its under side a
cam groove, to which is adapted a pin on a sliding plate, the forked inner end of
which embraces a collar on the shaft, while its outer end is provided with a rack
adapted to the teeth of a pinion connected to the needle bar in such a manner

page_text: that the latter can slide freely in but cannot revolve independently of the said
pinion.
The other shaft carries at its lower end a disk having a crank pin connected to
the inner end of the looper arm, the latter having at the outer end an eye for the
passage of the thread, and being connected at any desired point to a radius arm
pivotted to the base of the machine, so that a circular movement is imparted to the
oye at the outer end of the arm.
It will be observed that the relative sizes of the bevil wheel and of the pinion on
the upper end of this shaft are such that two revolutions of the shaft, and con-
sequently two operations of the looper are made during every revolution of the
driving shaft, and consequently during every complete up-and-down movement of
the needle. This is done in order that the movement of the eye around the end of
the needle when the latter is down shall be abrupt, so as to draw the thread against
the needle and insure its being caught on the hook as the latter ascends. The other
scroll cam on the driving shaft acts on a connecting rod attached at the outer end
to the end of an arm on the rear end of a rock shaft turning in bearings at the sido
of the frame, and carrying at its front end another arm to a segmental slot, in which
is adapted a bolt having a thumb nut, and connected to the outer end of a rod, the
inner end of which is connected to the first-mentioned of the said plates, to which
a vibrating motion is thus imparted, the extent of vibration being governed by the
position of the said bolt in the slot of the last-mentioned arm.
The operation of this machine is as follows:-Supposing the needle to be
elevated, the said finger depressed, and the jaws drawn back to their fullest extent
and closed on the work, the jaws now move forward, carrying the work with
them, and the needle descends, laying the thread which was caught on its hook
down on the face of the work in the form of a loop, down through which and
through the work the needle passes. Before the needle commences to pass through
the work however the operation of the machine causes the raising of the finger,
which thus supports the work when the pressure of the needle is exerted upon it.
The needle descends and a loop of thread is wrapped around it by the eye of the
looper and catches on its hook. As the needle rises it is caused to turn half way
round, its hook being thrown back, so that as it rises and passes through the work
and the loop on the top of the same, the latter will not catch on the hook but will
be cast off, the needle continuing its upward movement, and during this movement
having a reverse rotary motion imparted to it, so as to bring its hook again to the
front. Such a movement is then imparted to the said plates as to cause the jaws to
open and release the work, which is then supported by the finger while the jaws
move backward and close on the work. As soon as the jaws have closed and
commence to move forward the finger is depressed, so as to be out of the way and
not interfere with the free feeding of the work, but as soon as the jaws have reached
the limit of their forward movement the finger ascends and supports the work
during the operation of the needle, as above described.
If the thickness of the upper which is being sewn to the sole varies, the lasting
arm is at liberty to yield longitudinally to accommodate itself to such a difference
in thickness, the spring which acts upon the arm causing it to keep the edge
of the upper in its proper position without interfering with this longitudinal
movement.
The lower jaw is recessed, while the upper jaw has a sharp V shaped edge. By
this means the lower jaw affords a firm bearing for the edge of the sole, while the
upper jaw enters into the thread slot cut in the sole, and thus serves as a guide for
feeding the shoe to the machine, and insures the proper laying of cach stitch in the
slot, which it has a tendency to open for this purpose.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed by
the said Bristow Hunt in the Great Seal Patent Office on the 29th September
1877.
BRISTOW HUNT, of Serle Street, Lincoln's Inn, in the County of Middlesex,
Gentleman. "IMPROVEMENTS IN APPARATUS OR MACHINERY TO BE USED IN THE
MANUFACTURE OF BOOTS AND SHOES." (A. communication from abroad by Samuel
Henshall, of Philadelphia, Pennsylvania, in the United States of America.)
This Invention relates to improvements in apparatus or machinery used in the
manufacture of boots and shoes, for channelling the sole, for turning the edge of
the sole after it has been channelled, and for sewing the sole and upper together.
The apparatus for channelling the sole is illustrated on the accompanying
Drawings in Figures 1 to 5, Figure 1 being a side view of the improved channelling
machine, Figure 2, a section on the lines 1-2; Figure 3, a front view of the upper
part of the machine with the feed wheel removed; Figure 4, an enlarged view of
part of the machine; and Figure 5, a diagram illustrating the edge of the finished
sole.
A is the base or table of the machine in bearings, on which turns a shaft B,
carrying at its front end a bevel wheel a which gears into a pinion b, formed in or
secured to the under side of a rotary bed c, on which the work rests as it is being
operated upon.
To a standard C, at the rear end of the table A, is hung the rear end of an
arm D, having bearings for a shaft E, which carries at its front end a toothed or
roughened feed wheel d. It should be understood that the shafts B and E are so
geared together, and that the wheel dis of such a diameter that the periphery of
the said wheel and that part of the face of the table c immediately below the wheel
travel at the same speed.
Two cutting knives are employed, the one e for cutting the channel o in the sole,
and the other for cutting the groove 3 (Figure 5). The knife e is secured to the
lower end of a bar I, which is adapted to a guiding slot cut in the front end of the
arm D, and has a threaded stem g passing through a bracket g¹ upon the arm, and
provided above with a thumb nut h; around this stem g is coiled a spring i, which
bears at one end upon the bracket g¹ and at the other end upon a nut i adapted to
the threaded portion of the stem. By operating the thumb nut h the sliding bar and
consequently the channelling knife e can be raised or lowered at pleasure, and by
operating the nut the pressure of the spring i upon the slide can be easily regu-
lated. The grooving knife f is carried by a sliding bar adapted to a slot in a fixed
frame K at the front of the machine, this frame having arms which serve to steady
the arm D in its vibrating movement. This vibrating movement of the arm D is
necessary partly on account of irregularities in the thickness of the soles to be
operated upon, and partly because the front end of the arm has to be elevated to
permit the introduction and withdrawal of the work. The elevation of the outer
end of the arm for the latter purpose is effected in the present instance by means
of a lever M, the long arm of which is arranged so as to be readily depressed either
by hand or treadle, while its short arm engages with a pink on an arm N, hung
to the arm D, so that by depressing the long arin of the lever the outer end of the
arm E will be raised, and on releasing the lever the said outer end will be
depressed.
In order to insure the raising of the sliding bar J, which carries the grooving
knife fat the same time that the arm D is raised, there is used a lever hung to the
frame K, the short arm of the lever engaging with a piu m on the bar J while its
long arm is acted upon by a set screw carried by an arm of the lever M. Both
the sliding bar J and the arm D are acted upon by springs R, which tend to
maintain said bar and arm in their lowest positions; the downward movement of
the bar J being limited by a set screws while that of the arm D is determined by
the lower end of its arm N coming into contact with the table A.

page_text: In ordinary channelling machines the channelling knife e is rigidly carried by
the arm D, so that the depth to which it enters the leather is governed merely by
the depth to which the feed wheel penetrates, the result being a deep cut when
the leather is soft and a shallow cut when the leather is hard.
Another objection to the ordinary machine is that the channelling knife must
be adjusted to suit the different thicknesses of soles, so that the attention of a
skilled workman is required in running the machine.
It will be seen that in this machine the bar I carrying the channelling knife is
in its vertical movement entirely independent of the feed wheel d, the depth of the
cut made by the knife depending solely upon the extent to which the said knife
projects beyond the end of the bar, which may be furnished with an antifriction
roller so that the sole will move freely beneath the bar without being indented
thereby.
It will also be observed, as the bar I is acted upon by a spring it will readily
yield to suit different thicknesses of soles, the usual tedious adjustment being
entirely dispensed with.
The depth of the groove cut by the knife ƒ may also be regulated by adjusting
the set screw, so as to limit the downward movement of the bar J.
The apparatus for turning the edge of the sole after it has been thus channelled
is illustrated in Figures 16 to 19, Figure 16 representing a side view of the
machine, and Figures 17, 15, and 19, sectional views on the lines 1-2, 3-4,
and 5-6 respectively.
A is the base of the machine, near each end of which is a vertical standard B,
and in the latter near the bottom are formed bearings for a shaft D on the front
end of which is formed a collar a, the shaft beyond this collar turning in a lug h
on the base.
Hinged to the rear standard B of the machine are two frames E and F, the outer
ends of which slide in and are guided by the front standard, the former of thesc
frames carries a shaft I and the latter a shaft J; the shaft I is the driving shaft,
and carries at the front end a feed wheel M while the shaft J carries a disc d,
occupying the position shown in relation to the feed wheel; the shafts D, I, and J,
are so geared together that the peripheries of the collar a, feed wheel M, and disc d
move at the same speed.
The vertical position of the feed wheel M can be varied by operating a lever P
hung to the frame of the machine, and having a short arm connected to the front
end of the hinged frame E, and the vertical position of the disc d can also be
changed at pleasure by operating a lever R, the long arm of which is connected to
a suitable treadle while the short arm acts upon a pine carried by a rod S secured
to the frame F. The rod S extends down through the base, and is acted upon by
a spring which tends to constantly depress the same, a similar spring rod T being
attached to the frame E.
In operating on a sole the levers P and R are first moved, so as to raise the feed
wheel M and disk d; the sole is then inserted between the wheel M and collar a
to such an extent that its outer edge is just beneath the disc d; this is deterinined
by a stop (Figure 19); the feed wheel is then allowed to descend so as to clamp
the sole firmly between its edge and that of the collar a, and the disc d finally
descends so as to turn down the edge. The turning of the feed wheel causes the
passage of the sole through the machine, and this movement is continued until the
entire edge of the sole has been operated upon, when the feed wheel M and disc d
are raised, the sole removed, and a new one inscrted.
By employing a feed wheel M and turning disc d, which are independent of
each other as regards vertical movement, they can operate on the sole much more
advantageously than when carried by the same shaft as usually.
The apparatus for sewing the upper and sole together is illustrated in Figures 6
to 15, Figure 6 being a side view, partly in section, of the improved shoe sewing
machine; Figure 7, a plan view, partly in section; Figure 8, a longitudinal section
of the front end of the machine; Figure 9, a sectional plan of the front end of the

page_text: machine; Figure 10, a plan view of the looping arm; Figure 11, a side view of
a portion of the machine; and Figures 12 to 15, diagrams illustrating the formation
of the stitch.
A is the framework of the machine and B the driving shaft, carrying two scroll
cams a and b, a bevil wheel c, and a cain wheel d, which serve to impart movement
to the various working parts of the machine in the following manner:-A crank
pin on the face of the cam wheel d is connected by means of a rod e to a slide f
secured to the needle bar D, the latter carrying a hooked needle E to which the
required vertical reciprocating movement is thus imparted as the can wheel &
revolves. The edge of the cain wheel & acts upon an antifriction roller carried by
a slide g, secured to the lower end of a spring rod F, carrying at its upper end a
block g to which is pivotted the upper end of a plate I, the lower end of which
extends down to a point adjacent to the base of the machine and is provided with
a jawi. Immediately adjacent to the face of this plate I is arranged a similar
plate J, which carries at its lower end a jaw i, and is guided by lugs on the plate I
and is vibrated with the same as described herein-after, but is entirely independent
of the said plate I in its vertical movement, as it is slotted vertically at the top
where the pivot pin passes through it, and receives its vertical movement from the
block g' through the medium of a lover G, vertical bar H, and connecting plate h,
the latter having a curved slot to permit the vibration of the plate. It will thus
be seen that vertical movements in opposito directions are imparted to the plates I
and J, the latter falling when the other rises, and vice versa.
Projecting from the front edge of the table of the machine, in advance of the
jaws i,, is a finger m, which in the present instance forms part of a bell-crank
lever L, and is arranged in line vertically with the needle bar, being perforated for
the passage of the needle.
The bell-crank lever L, of which the finger m forms a part, is hung to a bracket
on the frame of the machine, and its short arm is connected to a rod k, the opposito
end of which carries an antifriction roller adapted to the groove in the scroll
cam a on the driving shaft; this groove being of such a charactor that the move-
ment herein-after described will be imparted to the finger m.
The long arm of the bell-crank lever carries a spring lasting arin n, which has
at the outer end a roughened block for bearing against the edge of the upper,
and holding the same firmly against the sole whilst the shoe is being sewn, as shewn
in Figure 11.
The bevel wheel c on the driving shaft imparts motion to two bevil pinions a
and t, the former being carried by the lower end of a vertical shaft S, and the latter
by the upper end of a vertical shaft T.
The shaft S carries at its upper end a disc V, having in its under side a cam
groove (see Figure 7) to which is adapted a pin on a sliding plate R, the forked
inner end of which embraces a collar on the shaft, while its outer end is provided
with a rack adapted to the teeth of a pinion p, connected to the needle bar D in
such a manner that the latter can slide freely in, but cannot revolve independently
of the said pinion.
The shaft T carries at its lower end a disc u having a crank pin connected to the
inner end of the looper arm W, the latter having at the outer end an eye x for the
passage of the thread, and being connected at any desired point to a radius arm V
pivotted to the base of the machine, so that a circular movement is imparted to the
eye at the outer end of the arm (see Figure 10).
It will be observed that the relative sizes of the wheel c and of the pinion t are
such that two revolutions of the shaft T, and consequently two operations of the
looper arm are made during every revolution of the driving shaft, and consequently
during every complete up-and-down movement of the needle; this is done in order
that the movement of the eye a around the end of the needle, when the latter is
down, shall be abrupt, so as to draw the thread against the needle and ensure its
being caught on the hook as the latter ascends. The scroll cam on the driving
shaft B acts on a connecting rod r attached at the outer end to the end of an

page_text: arm X on the rear end of a rock shaft Y, turning in bearings at the side of the
frame, and carrying at its front end an arm X' to a segmental slot, in which is
adapted a bolt y having a thumb nut and connected to the outer end of a rod z, the
inner end of which is connected to the plate I to which a vibrating motion is thus
imparted, the extent of vibration being governed by the position of the bolt y in the 5
slot of the arm X¹.
The operation of this machine is illustrated in Figures 12 to 15, and is as
follows Supposing the needle E to be elevated, the finger m depressed, and the
jaws i, i¹, drawn back to their fullest extent and closed on the work, the jaws now
move forward carrying the work with them, and the needle descends, laying 1
the thread which was caught on its hook down on the face of the work in the form
of a loop (as shewn in Figure 13), down through which and through the work the
needle passes. Before the needle commences to pass through the work, however, the
operation of the machine causes the raising of the finger m, which thus supports
the work when the pressure of the needle is exerted upon it. The needle descends 1
and a loop of thread is wrapped around it by the eye of the looper and catches on
its hook. As the needle rises it is caused to turn half way round, its hook being
thrown back, as shewn in Figure 14, so that as it rises and passes through the work
and the loop on the top of the same, the latter will not catch on the hook but will
be cast off, the needle continuing its upward movement, and during this movement 2
having a reverse rotary motion imparted to it so as to bring its hook again to the
front, as shown in Figure 16. Such a movement is then imparted to the plates I
and J as to cause the jaws i and to open, and release the work which is then
supported by the finger while the jaws move backward, and close on the work in
the manner shewn in Figure 12. As soon as the jaws have closed and commenced 2
to move forward, the finger m is depressed so as to be out of the way and not
interfere with the free feeding of the work, but as soon as the jaws have reached the
limit of their forward movement the finger ascends and supports the work during
the operation of the needle, as above described.
If the thickness of the upper which is being sewn to the sole varies, the lasting
arm is at liberty to yield longitudinally, to accommodate itself to such a difference
in thickness, the spring which acts upon the arm causing it to keep the edge
of the upper in its proper position without interfering with this longitudinal
movement.
It will be observed in Figures 6, 8, and 11, that the lower jaw i is recessed, while
the upper jaw has a sharp V shaped edge. By this means the lower jaw affords a
firm bearing for the edge of the sole, while the upper jaw enters into the thread slot
cut in the sole, and thus serves as a guide for feeding the shoe to the machine and
insures the proper laying of each stitch in the slot, which it has a tendency to open
for this purpose.
Having now described the nature and object of the said Invention, together with
the manner in which the same is to be or may be performed or carried into practical
effect, I would remark in conclusion that I claim as the Invention communicated to
me by the above-mentioned Samuel Henshall,-
First. A channelling machine in which the channelling knife is capable of moving
vertically, independently of the feed wheel during the operation of the machine,
as set forth.
Second. The combination of the arm D carrying the feed wheel d, with the
spring sliding bar I, carrying the channelling knife, as shown in Figure 1.
Third. The combination of the lever M and spring sliding bar J with the inter-
nediate lever P, as shewn in Figure 1.
Fourth. The combination of the levers Mand P with the adjusting screw n, as set
forth, and as shewn in Figure 1.
Fifth. The combination in a shoc sewing machine of vibrating arms I and J,
provided with jaws i, i, and having vertical movements in opposite directions
imparted to thein, substantially as described, and as shewn in Figures 6 to 8.
Sixth. The combination of the feeding jaws i and it with a finger m, in advance

page_text: of the jaws for supporting the work during the passage of the needle through the
same, as set forth, and as shewn in Figures 12 to 15.
Seventh. The combination of the feeding jaws i, ¹, with the finger m, to which
the above described movements are imparted, as set forth.
Eighth. The combination of a supporting finger or plate m of a shoe sewing
machine, with a spring lasting arm n, forming with the finger a recess for receiving
the edge of the sole, as set forth, and as shown in Figure 11.
Ninth. The combination of the finger m, bell-crank lever L, the connecting rod k,
and scroll cam a, as shewn in Figure 6.
Tenth. The combination of the cam d, the spring rod F and its block g¹, with
the vibrating plate I pivotted to the block g¹, as described, and as shewn in Figure 6.
Eleventh. The combination of the spring rod F and its block gl, and the vibrating
plate J with the lever G, bar H, and connecting plate h, as set forth, and as shewn
in Figure 6.
'
Twelfth. The combination of the needle bar D and pinion p, connected together
as described, with the sliding plate R and its rack, and the disk V with the cam
groove u, as shewn in Figure 7.
And, Thirteenth. The combination in an edge turner of a feed wheel and an
edge turning disk independent of each other as regards vertical movement.
In witness whereof, I, the said Bristow Hunt, have hereunto set my hand
and seal, this Twenty-eighth day of September, in the year of our Lord
One thousand eight hundred and seventy-seven.
BRISTOW HIINT