Improvements in Machines for Finishing Boots and Shoes.
Year: 1890

page_text: Date of Application, 5th Nov., 1890
Complete Specification Left, 4th Aug., 1891 Accepted; 19th Sept., 1891
PROVISIONAL SPECIFICATION.
Improvements in Machines for Finishing Boots and Shoes.
t
I WILLIAM HENRY DORMAN, of The Hawthorns, Newport Road, Stafford,
the County of Stafford, Engineer do hereby declare the nature of this invention to
be as follows
My invention consists in making a machine, for setting the edges of the soles of
boots; in such a manner that the action of the arm of the workman in finishing a
boot is imitated as nearly as possible.
1.
To accomplish this I carry the boot in a "jack".or holder with the sole in a
vertical position, that is to say: with the part of the edge to be worked upon
uppermost, in fact in the. position a finisher would hold it. This.jack." is so
constructed that the boot is held with the edge horizontal as long as the side of the
boot is being worked upon, then, as the toe is approached, the boot is gradually
rotated while the edge of the toe part is being operated upon until the side of the
boot that was underneath has come up to a horizontal position and in its turn is
worked upon.
56
1
The iron" is carried at the extremity of an arm which may be said to represent
the arm of the workman. This arm extends at right angles from a swinging frame
to which it is connected by a joint allowing it to move horizontally and vertically..
The iron is carried at the end of the arm and is made to reciprocate very
rapidly through a short distance along the edge of the boot sole this reciprocating
movenient affording the needful friction to bring up the polish.
.
The progressive movement of the "iron" along the edge is furnished by the
gradual movement of the swinging frame, which is so arranged as to carry the
rapidly reciprocating “iron” along the edge from the point of commencement, saj
at the "joint," as far as the commencement of the toe. At this point it is arrested
while the "jack" or holder is slowly revolved about a point more or less exactly.
coinciding with the symmetrical centre of the toe thus carrying the edge of the toe
part of the sole under the iron.” When a semi-revolution has been made,
bringing that edge of the boot which was undermost now uppermost, the revolution
ceases and the progressive movement of the "iron" is renewed and continues until
the iron has travelled so far as is required say to the opposite "joint." If by
once passing under the action of the iron" the edge is sufficiently polished the
returns and
boot may now be taken out and another put in but if not the "iron
the same movements take place on the return journey until the point of commence-
ment is reached. These movements may be repeated as long as is considered
necessary.
:
In adapting this process to general use it is needful to provide a means of readily
adjusting the extent of the travel of the "iron" to suit different sizes of boots and
also to cause it to travel further along one side of the boot than the other, to adapt
it to set "rights & lefts."
In constructing a machine to carry out my invention I mount the "jack" or
boot holder on the end of a shaft carried in bearings in the frame of the machine.
The "jack" is provided with an adjustable heel pin on which the last is carried
and by which it is centered also a toe rest to receive the "fore part " and a cover or
cramp to firmly fix the boot into the holder. On the "jackshaft is mounted a
pinion which gears into the toothed end of a segmental lever pivotted to the
machine frame.
The swinging frame is mounted on a pivot on the machine frame and the arm is
jointed to its upper end. Symmetrical with the pivot a pulley is carried on a
counter shaft receiving motion from the driving shaft of the machine. From this

page_text: pulley motion is communicated by a band to a pulley symmetrical with the pivot of
the arm joint and thence to a swiftly revolving shaft which imparts reciprocating
motion to the " iron."
The machine frame is provided with a vertical guide groove situated just behind
the swinging frame in which a slide block works up and down.
Upon the slide block is pivotted at its centre an adjustable guide slot in such a
manner that it can be placed parallel with the slide block, or at an angle of
about 45° with it, or at any intermediate angle, at will. The swinging frame
carries pivotted upon it a die which fits into the adjustable guide slot, with this
result, that, the die fitting the guide slot, the swinging frame is held stationary so
long as the slide block is not moved but if the guide slot be placed at an angle
with the slide block, and the slide block be caused to move up and down in the
guide groove in the frame the swinging frame by means of the die will be caused
to swing backwards and forwards on its pivot. The guide slot is made adjustable
at any angle with the slide block and by that means the amount of swing of the
swinging frame and the progressive travel of the iron on the arm is regulated.
Pivotted to the frame by one end is a lever the free end of which is coupled to
the slide block above mentioned and at a suitable point between the two ends the
lever carries a cam roll and pin.
"
The main shaft of the machine is carried in bearings in the frame and mounted
upon it is a spur wheel which gears with a pinion on the driving shaft from which
it receives motion.
On the main shaft is a modified heart cam, I distinguish it as the "side" cam,
in the groove of which works the cam roller above mentioned. As the cam revolves
the lever is caused to move up and down together with the slide block so that the
swinging frame and ultimately the arm and the "iron are made to move in
conformity with the shape of the cam.
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The contour of the cam is such as to produce the periods of motion and rest in
the progressive movement of the "iron "already described.
As for every revolution of the cam the swinging frame makes one complete
oscillation back and forth the convex side of the cam traverses the "iron" to one
extremity of its travel and the re-entrant side to the other extremity. The cam is
made adjustable so that the extent of movement of the swinging frame in one
direction can be regulated independently of that in the other and by this means the
" iron " can be made to travel further on one side of the boot than on the other so
as to set rights and lefts. By altering the degree of obliquity of the guide slot
compared with the slide block, variation in the general extent of the travel of the
iron" is obtained so as to set the edges of boots of various sizes.
"
toe
22
Upon the main shaft is carried another cam, which may be distinguished as the
cam, in the groove of which a cam-roll works which runs on a pin in
the geared segmental lever above mentioned as gearing with a pinion on the "jack"
shaft.
This cam is shaped so as to set in motion the segmental lever and consequently
revolve the "jack" during the times that, in obedience to the "side" cam, the
progressive movement of the "iron" is suspended.
"
In some shapes of boot soles it may be desirable to allow the revolving motion of
the "jack and the progressive movement of the "iron" to act at the same time
so as to produce a movement compounded of both.
This can be arrived at by varying the relative shapes of the cams.
In applying this invention to a machine for setting heels I place the boot in the
"jack "the opposite way so that the heel stands where the toe was, and I provide
a movement to cause the arm to traverse the convex
27
25
burnishing iron across the
6.
face of the heel so as to cover in turn every part of its surface.
In setting "waists " I so construct the "jack" that the symmetrical centre of
the "waist of the boot coincides with the centre of rotation of the jack" and I
disuse the cam for working the "jack" and turn by hand so as to present each
edge to the "iron" alternately.

page_text: may also construct the machine for setting "waists" with two "irons " acting
at the same time so as to set both edges at once. In this case I dispense with the
turning of the "jack" altogether and I may so place the boot that the sole is
uppermost.
Dated this 4th day of November 1890.
W. H. DORMAN.
COMPLETE SPECIFICATION.
Improvements in Machines for Finishing Boots and Shoes.
I WILLIAM HENRY DORMAN, of The Hawthorns, Newport Road, Stafford, in
the County of Stafford, 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 machinery employed for burnishing or finishing the
edges of the soles of boots and shoes.
The finishing or setting of the edges of the soles of boots and the burnishing of
the heels is accomplished by rubbing the properly inked surfaces with hot burnishing
irons of suitable forms.
My invention consists in making a machine, for setting the edges of the soles of
boots in such a manner, that the action of the arm of the workman in finishing a
boot, is imitated as nearly as possible.
To accomplish this, I carry the boot in a "jack" or holder, preferably with the
sole in a vertical position, that is to say; with the part of the edge to be worked
upon, uppermost, in fact, in the position a finisher would hold it. This "jack" is
so constructed, that the boot is held with the edge approximately horizontal, as long
as the side of the boot is being worked upon, then, as the toe is approached the boot
is gradually rotated; while the edge of the toe part is being operated upon, until the
side of the boot that was underneath, has come up to an approximately horizontal
position, and in its turn is worked upon.
::
The burnishing ironis carried at the extremity of an arm, which may be said
to represent the arm of the workman. This arm extends at right angles from a
swinging frame, to which it is connected by a joint allowing it to move, horizontally
and vertically.
The "burnishing iron" is made to reciprocate rapidly through a short distance
along the edge of the boot sole, this reciprocating movement affording the needful
friction to bring up the polish.
"
The progressive movement of the "burnishing iron" along the edge, is furnished
by the gradual movement of the swinging frame, which is so arranged, as to carry
the rapidly reciprocating "burnishing iron" along the edge from the point of com-
At this
mencement, say at the "joint," as far as the commencement of the toe.
point it is arrested, while the "jack or holder, is slowly revolved about a point,
more or less, exactly coinciding with the symmetrical centre of the toe, thus carrying
When a semi-
the edge of the toe part of the sole, under the "burnishing iron."
revolution has been made, bringing that edge of the boot which was undermost, now
uppermost, the revolution ceases, and the progressive movement of the burnishing
iron is renewed, and continues until the burnishing iron has travelled so far as is
required; say to the opposite "joint." If by once passing under the action of the
"burnishing iron" the edge is sufficiently polished, the boot may now be taken out
and another put in, but if not, the "burnishing iron" returns, and the same move-
ments take place on the return journey, until the point of commencement is reached.
These movements may be repeated as long as is considered necessary.
In adapting this process to general use, it is needful to provide a means of readily
adjusting the extent of the travel of the "iron," to suit different sizes of boots,
and also, to cause it to travel, further along one side of the boot than the other, to
adapt it to set "rights and lefts."
In constructing a machine to carry out my invention, I 'mount the "jack" or

page_text: "2
0.1.
The "jack TRO
is provided with an adjustable beel-pin, on which the last is carried,
and by which it is centred, also a toe rest to receive the fore-part" and a cover o
cramp to firmly fix the boot into the holder. "
5.
11. 0070 (
or
On the "jack" shaft is mounted a pinion which gears into the toothed end of a
segmental lever, pivotted to the machine' franie.
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The swinging frame is mounted on a pivot on the machine frame, and the arm is
jointed to its upper end.
Symmetrical with the pivot, a pulley is carried on a counter shaft, receiving
motion from the driving shaft of the machine.
•
From this pulley, motion is communicated by a band to a pulley, symmetrical
with the pivot of the arm joint, and thence, to a swiftly revolving cam, which
imparts reciprocating motion to the "iron."
The machine frame is provided with a vertical guide groove situated just behind
the swinging frame, in which a slide block works up and down.
Upon the slide block is pivotted at its centre, an adjustable guide slot, in such a
manner, that it can be placed parallel with the slide block, or at an angle of about
45° with it, or at any intermediate angle at will. The swinging frame carries
pivotted upon it, a die, which fits into the adjustable guide slot, with this result;
that the die, fitting the guide slot, the swinging frame is held stationary so long as
the slide block is not moved; but if the guide slot be placed at an angle with the
slide block, and the slide block be caused to move up and down in the guide groove,
in the frame, the swinging frame, by means of the die, will be caused to swing
backwards and forwards on its pivot. The guide slot is made adjustable at any
angle with the slide block, and by that means the amount of swing of the swinging
frame, and the progressive travel of the "iron on the arm is regulated.
"
Pivotted to the frame by one end, is a lever, the free end of which is coupled to
the slide block above mentioned, and at a suitable point between the two ends, the
lever carries a cam roll and pin.
The main shaft of the machine is carried in bearings in the frame, and is geared
to the driving shaft, from which it receives motion.
On the main shaft, is a modified heart cam; I distinguish it, as the "side" cam,
in the groove of which works the cam-roller above mentioned. As the cam revolves,
the lever is caused to move up and down, together with the slide block, so that the
swinging frame, and ultimately the arm and the "iron," are made to move in
conformity with the shape of the cam.
The contour of the cam is such, as to produce the periods of motion and rest in
the progressive movements of the "iron" already described.
As for every revolution of the cam, the swinging frame makes one complete
oscillation back and forth; the convex side of the cam traverses the iron," to one
extremity of its travel, and the re-entrant side to the other extremity. The cam
is made adjustable, so that the extent of movement of the swinging frame in one
direction can be regulated independently of that in the other, and by this means the
iron" can be made to travel further on one side of the boot' than on the other,
so as to set "rights and lefts."
2.
1
By altering the degree of obliquity of the guide slot, compared with the slide
block, variation in the general extent of the travel of the "iron" is obtained, so as
to set the edges of boots of various sizes.
1
'
j
14
"
Upon the main shaft is carried another cam which may be distinguished as the
toe "cam, in the groove of which cam roll works, which runs on a pin, in the
geared segmental lever above mentioned as gearing with a pinion on the "jack
shaft. This cam is shaped so as to set in motion, the segmental lever, and conse-
quently revolve the "jack" during the times that, in obedience to the side cam, the
progressive movement of the "iron" is suspended.
In some shapes of boot soles, it may be desirable to allow the revolving motion
of the "jack," and the progressive movement of the iron, "to act at the same time,
so as to produce a movement compounded of both."
2

page_text: This can be arrived at by varying the relative shapes of the cams.
In setting waists I so construct the "jack" that the centre point of that part of
the sole of the boot known as the waist coincides with the centre of rotation of the
jack" and I disuse the cam for working the "jack" and turn by hand so as to
present each edge to the "iron" alternately.
Fig. 2. is an end elevation of the same.
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Figs. 3 and 4 shew, the operation of the cams upon the "jack" and the swinging
frainc.
Fig. 5 shews the swinging levers, afterwards referred to.
Figs. 6 and 7 are views of the "toc cam."
"
Figs. 8 and 9 are views of the "side cam and the lever for adjusting the
same.
Figs. 10, and 11 are views shewing the pinion and clutches for turning the
"jack.
"
Fig. 12 shews the swinging frame and connection bolt.
Figs. 13, 14 and 15 are a section, elevation and plan shewing the connection of
the arm to the swinging frame.
Figs. 16 and 17 are a sectional elevation and plan shewing the link, the slide block,
the vertical guide groove, the adjustable guide slot, the die pivotted to the swinging
lever and the swinging frame with its bolt.
The machine is shown in the drawings constructed, as a double machine-that is
to say, with two working sides, or sets of mechanism so as to be capable of operating
on two boots at one time. But in describing it, for the sake of clearness, I shall
speak of it, as if it had one working side only; the two working sides are counter-
parts of one another, and the saine letters are used to indicate the corresponding
parts in each.
2.4
(see Figs. 1 and 2) is the main frame of the machine, which carries the
various parts as hereafter described.
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The driving, shaft "a" is carried in the main frame "A." It is provided with
fast and loose pulleys "a"a"." Mounted on the shaft a is a pinion
which gears with a wheel on one end of a shaft "a" carried in the main
frame A On the other end of the shaft is a pinion "a" which gears
with the large wheel «,” on "the end of a shaft "5" carried in bearings in the
main frame A.
"2
7794
22
22
For the purpose of operating the jack" "B" which carries the boot "C,"
which is preferably finished on the last, the following arrangement is employed.
Upon the shaft" (see Figs. 1, 2, 3 and 4) is mounted a cam "" which I call a
toe cam having a groove of such a shape as will give the desired movement
to the "jack'
"B." The cam groove engages a roll "2" which is mounted
on a toothed segment "3" pivotted in the main frame "A" at "." The toothed
segment is free to move up and down under the influence of the cam "" and
communicate a reciprocating rotary movement to a pinion "" (see Fig. 10) into
which it gears. The pinion "" is formed with a long hub "" arranged to turn
in a bearing "7" carried by the main frame "A" and the ends """" of
the hub are adapted to engage with clutches "10" (see Figs. 10 and 11). The
clutches
are mounted upon shafts """the ends of which meet within the
hub
The clutches are arranged to slide to and fro upon feathers in
the shafts and for the purpose of putting them in and out of gear with the
pinion the clutch levers "12" are provided, being pivotted to the main
frame "A" at "13" A spring "tends always to keep the clutches "10" in
gear with the pinion "" To hold the clutches out of gear spring
catches are provided which when the clutch levers "" are inoved so as
to withdraw the clutches, retain the same in the out of gear position.
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The shafts "" are free to turn in bearings "1" in the main frame "A" and
carry at their outer ends the "jack "frames "67"

page_text: The
The
may be
The boot "C is secured in the "jack "B" in the following manner.
jack frame "" is provided with a heel pin "e" which receives the heel of the
last. The toe of the boot is supported by the rest ""adjustable in a socket"
carried by the jack frame "17 The position of the boot in the jack should be
such that the centre of the toe is in the line of the centre of the shaft ""
swan neck "" is carried upon a pin "c" in the frame "17" on which it
swung sidewise to remove or insert the boot. The handle ""may be turned
upon a pin "c" in the swan neck "3" and has a cam "c" which operates on a
rod so as to hold down the cramp
The pawl "10" acting in the ratchet teeth on the sole and heel of the boot.
retains the cramp "c" in position.
By pressing upon the handle ""the pawl "10" is released, and by turning the
handle in the opposite direction, the cramp "" is withdrawn so as to free
the boot. The heel pin "c" can be changed in the holes "13" to accommodate
different sizes of boots. The jack "B" is balanced by the counterweight "c"."
"
66
66
For the purpose of carrying the burnishing iron, and the mechanism for operating
it, the following arrangement is made use of.
Carried on the base of the main frame "A" (see Figs. 1, 2, 3, 4 and 5) are
bearings","""in which are tubular pivots ""." On these pivots is
mounted a swinging frame "." The upper end of the swinging frame "d" is
provided with a tubular trunnion piece "" (see Figs. 13, 14 and 15) which
carries the burnishing arm
« 16.3*
The burnishing arm "d" is mounted on the
swinging frame so that the end "" is capable of vertical and horizontal
movement.
on
18."
"0."
The burnishing iron "e" is carried on a ball joint on the end of the lever "e"
which is pivotted on the pin "e" carried in the end of the burnishing arm
The driving arrangement for vibrating the burnishing iron, is as follows.
The upper end of the lever "e" is furnished with a cam roll ""
which works in the cam groove "e" formed in the side of the pulley
The pulley "e" is driven by the band "e" from the pulley "" mounted
the shaft
The shaft "e" which is carried on the upper end of
the swinging frame "d" receives motion from the shaft "e" at the base of the
machine by means of the band "e" and pulley "e." The shaft "e" is carried
in the tubular pivots ","
The shaft "" is driven from the main
driving shaft by the pulleys "e" and "1" and the band "14" In order
to be able to stop the vibration of either burnishing iron at will, a treadle "f"
is provided, which is pivotted to the main frame at ""and provided with a forked
end "engaging with the friction clutch "f3" which slides upon feathers in the
shaft "e." The clutch "" is held in gear by a spring "f" and when drawn out
of gear by depressing the treadle "" is retained by the catch "fo."
** d³."
To give the swinging movement to the frame "d"," necessary to carry the
burnishing iron "e" to and fro along the side of the boot sole, the following
arrangement is employed.
way
A cam called the "side cam," is mounted on the shaft "a" the groove being
in the form of a modified heart cam. The cam roll ". "enters the groove and is
mounted on a lever "g" which is carried at one end on a pivot " in the main
frame "A." The other end of the lever "," is jointed by means of a link "g*,”
to a slide block "g","free to slide up and down in a vertical guide groove or slide
"prepared for it in the main frame "A." Carried in the slide block "g","
is a horizontal stem "," (see Figs. 16 and 17) which has, (either secured to it or
forming part of it) at the front end an adjustable guide slot "g." Upon the rear
end of the stem "g" is a worm-wheel "g" which may be turned by a worm "lo"
so as to set the guide slot """ either in line, or at any desired angle with the
slide way ""The worm "0" is mounted on an inclined shaft "g" carried in
a bracket upon the slide block "g," and a hand wheel "g13" is provided for
turning it.
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Fitting in the adjustable guide slot "g," so as to be capable of sliding therein, is
a die "y," which is mounted on a pivot """ in the 'upper end of a lever "gl

page_text: The lever
is attached to a barrel piece
дии апоснет
is attached to the other end of the barrel piece """
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The tubular pivots "d" which have been already referred to as carrying, in
conjunction with the tubular pivots "," the swinging frame "d" stand through
the bearings sufficiently far, (see Fig. 5) to carry also the levers ""
and which formn with the barrel piece """ one rigid connection, so that any
swinging motion communicated to the lever "1" is transmitted to the other
lever "A catch bolt "g" (see Fig. 12) serves to connect, when desired, the
levers 18" 18" with the swinging frames"."
::
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Should the cam "y" be now revolved it would operate the lever "" and through
the link "g" move the slide block "y" and the adjustable guide slot "8" up and
down. If the guide slot "were set vertically, it would move up and down upon
the die "g" without communicating any movement; but if the guide slot "y" were
set at an angle to the vertical, it would in moving up and down, press sidewise
upon the die "14" and move it, as well as the lever " to which it is pivotted,
over alternately to the left and right of the vertical; (see Figs. 2, 3 and 4), and, as
the lever is rigidly connected to the lever it would likewise be moved
to and fro in a precisely similar manner. The amount of the swinging movement
of the two levers "1" and "g" being of course determined by the amount of the
angle at which the adjustable guide slot "g" is set to the vertical.
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::
As it is necessary to be able to cause the swinging frames "" to either swing,
or remain stationary at will, independently of one another, an arrangement is
provided for connecting and disconnecting them with the levers """"
For this purpose the catch bolt "10" previously referred to, is arranged, so that
it may be worked by means of a handle. The catch bolt "10" (see Fig. 12) slides
in a hole "provided for it, in the swinging frame "d".""
For the purpose of withdrawal, the end is adapted to be acted on by a
lever pivotted on a pin "23" in the swinging frame ";" and for the purpose
of shooting the bolt "the lever "" is arranged to act upon a spring "24"
which bears against a shoulder "25" on the bolt "The upper end of the
lever "2" forms a handle "20" and a handled pawl "" is pivotted to it, on a
pin its end "" engaging in notches """" in a quadrant "32"
attached to the swinging frame." The end of the catch bolt enters a
hole or notch 31" provided for it in the levers "g" and the end "" of
the pawl retains the bolt "" either in or out of gear. The curved arm; ""
prevent the bolt",
"y' 19" being shot forward except when opposite the hole "y".
"
For the purpose of lifting the burnishing iron "e" up from the edge of the boot
sole, a handle is provided in the arm and a link "" is suspended from
a gibbet "," carried on the main frame "A," for maintaining the arm "" in its
raised position. The link "" terminates in an eye "h" at its lower end which
engages with a hook "" in the arm "d"
The downward pressure of the burnishing iron "e" on the edge of the boot sole,
necessary for producing the polish or burnished appearance, is procured by means
of a coiled spring "" (see Figs. 13, 14 and 15) wound upon a barrel
upper end of the swinging frame "." The outer end of the spring "" is attached
at to the arm and the spring may be wound by means of the worm
"
wheel and worm "."
CC
on the
In right and left boots, the length of the edge of the sole, requiring to be
burnished, is greater on the outside than on the inside of the boot, an in straight
boots the length of each side is equal, it is therefore necessary that the swinging
frame be caused, when burnishing rights and lefts, to swing further from the
vertical on one side than on the other, and when burnishing straight boots, to swing
equally on each side of the vertical. So that this may be arrived at, the side
cam is constructed in such a manner that the amount of its inward throw may
be varied. The portion of the cam groove from "j" to "j" (see Figs. 8 and 9) is
not made solid with the rest of the cam, but is in two pieces "*" and "j" pivotted
on pins "" and "" in the cam g." These two pieces "" and "" meet
< 12
65
66 ::

page_text: 22
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"A" on, a
at in a sort of half lap joint, and a slide “engages with each of them by
means of dies. pivotted to the slide and engaging in slots "" "in the
pieces The slide is arranged so that it may move in a slide
way prepared for it in the cam "g." It is provided with a box "having
two inclined sides" and "13" In the box is fitted a block "having
two of its sides "110" inclined at the same angle as the sides """" of the
box. The block has a hole "" through its centre, fitting on the shaft "a"
on which it is free to slide. Around the end of the block "," is a groove","
which engages with a forked lever pivotted to the main frame ".
pin "and operated by a screw "" and hand wheel ""The Screw "21"
is carried in a bearing on the main frame A," and works in a pivotted
nut (see Fig. 8) in the end of the lever "10" By turning the hand
wheel in one direction, the lever "i" is moved so as to slide the block"
upon the shaft "a" and move outwards the slide and cam pieces"
and "," so as to diminish the amount of inward movement (towards the shaft "a"
given to the lever ";" and by turning the hand wheel in the opposite
direction, the block "" will be made to slide, so as to move inwards the slide "j"
and cam pieces "" and "" and increase the amount of inward movement
(towards the shaft "a") given to the lever "g" and as this lever "is
connected to the swinging lever "," its movement will be likewise affected.
The cams " and "
are distinguished, the former, "," as the "toc-cain
because it operates the "jack" to turn the boot, while the burnishing iron is upon
the toe, and the latter "y" as the "side cam," because it operates to move the
swinging frame, and traverse the burnishing iron up and down the side of the boot.
The cams are shewn in the drawings as cach having two periods of movement,
and two periods of rest; the periods of rest in the one cam corresponding with the
periods of movement in the other; thus while the "side cam
9
"
"
2
12
rests, and the
burnishing iron vibrates upon the boot toc, centrally over the line of the axis about
which the toc of the boot turns, the "toe-cam" turns the "jack" through some
half revolution, and then while the "toe-cam" rests, with the boot lying in a more
or less horizontal position, the "side cam traverses the iron" up and down one
side of the boot.
If desired however the shape of the "toc-cam" may be modified, so that instead
of resting while the iron travels up and down the side of the boot sole, the boot
shall have given to it, a rising and falling movement, such, that the portion of the
boot-sole edge at any given moment, undergoing the burnishing operation, shall be
presented level or square to the burnishing iron.
The gas apparatus or other arrangement for heating the burnishing iron, is
arranged as is usual in burnishing machines, and is not shewn in the drawings.
The machine is operated in the following manner. The machine being set in
motion by a band to the driving pulley "," the shafts """""" and ""
as also the cams "" and "" are, through their several connections, put into
continuous rotary movement. The cam "" moves the segment "3" up and down;
and communicates a reciprocating rotary movement to the pinion "*" and its
hub The cam "" operates the lever "" and through its connections
moves the adjustable guide slot "g" up and down, which, having been previously
set, by the operator at an angle, suitable to the size of the boots about to be
burnished, swings the levers """18" to and fro. The operator puts a boot on
its last, with its edges inked, into the machine, dropping the heel socket of the last
upon the heel pin C "and the boot toe, upon the toe-rest "," and turns the swan
neck cover the boot sole, and by means of the handle the cam "C" is
moved so as to press down the cramp "firmly upon the boot sole, where it is
retained by the pawl "c"
<
12
"
C IS
The gas, having been previously lit and the burnishing iron heated, the link "A"
is released from the hook "" and by means of the handle ""the iron "
lowered on to the edge of the boot. The operator then with his foot releases the
catch "f" from the treadle "f," thus putting the clutch "" in gear with the

page_text: k
bulley """ and setting the iron "e" in vibration upon the boot edge. He then
releases the spring catch "18" so as to liberate the lever "61" and allow the
spring "64" to draw the clutch "610" into gear with the pinion "65" and so set in
motion the jack "B." Then by means of the handle "y" he presses forward the
spring so as to shoot the catch bolt "g" into gear with the lever "16" and
so set the swinging frame "d" in motion.
<<
19
The burnishing operation then proceeds as follows. The iron "e" vibrates upon
the edge of the boot sole, say at the toe, while the jack "B" is slowly turned by
the operation of the portion "k" to "i" (see Fig. 7) of the cam "" upon the
toothed segment "."
When the point "" of the cam ""reaches the cam roll "the movement
of the jack "B" will cease, the boot will be lying in a somewhat horizontal position
and the iron will have operated round the toe. The circular portion or rest in the
cam "," from "k" to "" will now engage the roll "2" and the portion
from "" to "" (see Fig. 8) of the cam ""will operate upon the lever "g²,"
and through its connections, move over the swinging frame and arm "d" so
as to traverse the burnishing iron e" along the boot edge.
"
دو
When the point "of the cam "g" has arrived at the roll "g"the iron".
will have arrived at the waist of the boot (see Fig. 3) and the movement of the
iron in the direction from the toe of the boot will cease: the part of the cam
from "" to "12" will then operate upon the roll ""and return the iron "
the toe of the boot.
•
73
"
CC
23°
e".to
e
By this time the point "2" of the cam "" will have arrived at the roll "1,2,"
and the part of the cam from "" to "".will next turn the jack "B" back
again; the rest "12" to "13" in the cam " now engaging the roll gland
keeping the swinging frame "ɖ4” in its upright position, and the iron
stationary. As soon as the jack "B" has completed its backward turn and the
boot has become approximately level in the opposite direction, the rest from "3"
to "k" will engage the cam roll "2" and the portion from "13" to "14" of the
cam " will operate upon the cam roll "1" and move over the swinging
frame" and the iron "e" to the opposite side, until the waist on that side is
reached (see Fig. 4) when the part of the cam from "A" to ""will come into
and the iron ",
action and return the swinging frame "dr
to the central
position.
These operations are allowed to continue as long as may be necessary, and when
the operator considers the edge of the sole to be sufficiently burnished, he removes
the finished boot and inserts another.
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23
As each half or side of the machine may be worked quite independently of the
other, the operator is enabled to put in a boot and start up one side of the machine,
while the other, side is burnishing another boot, and so always have a boot under
the burnishing operation.
•
When the machine is constructed as a single machine, so as to do only one boot
at a time, one of the jacks "B" and one of the swinging frames "d" is dispensed
with together with the parts belonging to it, as well as the levers "1" "g" and
the barrel piece "The die "" is pivotted directly to the remaining
swinging frame, and the clutches "60" and "3" with the arrangements for
working them, need not be employed.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is
In a machine for " setting" or burnishing the edges of the soles of boots
or shoes
•
1. Causing the shoe to turn about a point approximately the centre of the toe,
while the edge of the toe-part of the sole, is being burnished, and to remain
stationary while the edges of the sides are being burnished.
2. Giving to the. arm which carries the burnishing iron, a to and fro movement
B

page_text: while the edges of the sides of the sole are being burnished, and causing it to rest
while the edge of the toe is being burnished.
3. The use of a swinging frame and jointed arm for carrying the burnishing iron
so operated by the machine as to carry the burnishing iron to and fro along the
edges of the sides of the sole.
4. The use of a system or arrangement of jointed levers for carrying the
burnishing iron the pivots of which are approximately at right angles to the plane
in which the sole of the shoe lies, so that the action of the system is approximately
in the direction of the line of the edge of the sole.
5. The use of a guide slot carried upon a sliding block at an angle with the line
of motion of the sliding block, and acting on the swinging frame so as to cause it
to move to and fro the angle which the guide slot makes, with the line of motion
of the slide block, being capable of being varied, so as to vary the extent of motion
given to the swinging frame.
6. The arrangement of bands and pulleys mounted concentrically with the pivots
which carry the swinging frame and burnishing arm for the purpose of giving a
vibrating motion to the burnishing iron carried at the extremity of the arm.
7. The use of an adjustable cam, so arranged that the form of the cam path or
groove may be varied, so as to vary the amount of movement imparted to the cam
lever or its equivalent, in order to vary the amount of travel of the burnishing iron,
on one side of the sole relatively to the other.
8. The use of a cam for giving movement to a jack" or boot-holder, so
constructed as to cause the jack to turn while the toe is being burnished, and to rest
while the sides are being burnished.
9. In a machine for "setting" or burnishing the edges of the soles of boots or
shoes in which the sides of the sole are burnished by a burnishing iron carried by
a system of levers having a to and fro movement, and in which the boot or shoe is
carried in a "jack or boot holder, having a turning movement while the toe is
burnished; continuing the turning movement during the whole or part of the time
that the sides are being burnished.
10. A machine for "setting or burnishing the edges of boots or shoes having a
"jack" or boot-holder for carrying the boot, a cam, geared segment and pinion
for operating the "jack," a cam and lever, with connections for travelling a
burnishing iron along the edge of the sole. An adjustment in the cam for varying
the amount of the travel of the iron along the edge of one side of the sole. An
adjustable guide slot for varying the amount of the travel of the iron. Means for
vibrating the burnishing iron and for applying pressure thereto, all substantially
as described and illustrated.
J
1001