Year: 1893

page_text: Date of Application, 4th Aug., 1893-Accepted, 7th Oct., 1893

page_text: accurately to the shape and dimensions of the pattern. The movable frame is
pivoted or otherwise supported so that the sole-blanks while revolving receive
motion to and from the cutter, such reciprocating motion being controlled by the
pattern, which revolves with the blanks. The present invention contemplates
mechanism for imparting a variable rotatory movement to the blanks while being
dressed, mechanism for shifting the axis on which the blanks revolve relatively to
the cutter while they are being moved to and from the cutter by the action of the
pattern, an improvement in the construction of the cutter whereby the soles are
finished with perfectly clean edges, means for reducing friction, an improved
blank-guide, and various other novel features, as hereinafter more specifically
described.
A represents the main-frame, which in the construction shown, consists of the
uprights or standards B B, the base C, and the cross-bar D. The main-frame
supports the driving shaft E, provided with the tight and loose pulleys a a', and
the cutter-shaft F, which revolves in the boxes on the cross bar D. G is
the cutter, which in Fig. 3 is shown as covered by the movable guards e d, which
are employed to prevent fuzziness of the edges of the dressed soles. The cutter-
shaft is driven from the main-shaft E by suitable pulleys and a belt H.
provided with a fly-wheel 1, to secure steadiness of rotation.
It may be
J is the movable carriage or frame, which supports the intermittently revolving
sole-clamps eel, and the pattern or former and which, in the form of machine
represented, is pivoted on the shaft K supported in suitable journals on the
base C, its outer end being free to move inward and outward, to and from the
cutter. Provision is made for locking the movable frame in the position farthest
away from the cutter, as indicated by the full lines in Fig. 2, by means of the
notched link L, and, when released from this position, the frame is drawn toward
the cutter by the weights and cords i, passing over suitable corner-pulleys, Fig. 2.
A rock-shaft M, journalled in suitable bearings on the main-frame, is provided at
or near its ends with arms k, attached by connecting rods to the frame J, so that
any springing or twisting of the frame during its movement is prevented. A weight
on an arm attached to the rock-shaft M will draw the movable frame towards the
cutters, but I prefer the weights and cords, as the pressure tending to move the
frame towards the cutter is thus rendered uniform. The rods I are pivoted to
suitable lugs on the movable frame.
The boxes bb for the cutter-shaft F are constructed to permit the movable
frame carrying the sole blanks and the former to come as near to the shaft as
possible. For this reason the lower portions, 3 of the boxes are made
removable, being attached to the standards on the main-frame by the bolts a², and
forced against the other portions of the boxes by the set-screws e¹, passing through
lugs on the frame.
The movable frame J consists of two portions, one of which N is pivoted to
swing on the shaft K, while the other, 0, is arranged to reciprocate lengthways as
indicated by the full and dotted lines in Fig. 4. The sole-clamps and former are
supported by the reciprocating part of the frame, which receives a to and fro
movement lengthways as the clamps revolve, so that the sole-blanks are shifted up
and down relatively to the cutter during the rounding operation, as hereinafter
more fully described, for the purpose of facilitating the cutting by keeping the
cutting point as nearly as possible opposite the center of the shaft, and to relieve
the friction between the former and the guide.
The lower portion N of the frame, consists of a hollow bar d, the hollow
uprights, and the cross-bar. The bar is fitted on the shaft K. The
movable portion of the frame is provided with the rods, which slide in the
uprights. The weight of the movable portion of the frame, is supported
by the springs, Fig. 1, which are placed within the uprights, bearing at
their upper ends against shoulders on the rods, and at their lower ends upon
Le ends of tubes j inserted in the uprights. The uprights are slit for a distance
from their upper ends, as indicated at 4, and provided with clamping screws, so

page_text: that the divided portions may be drawn together to take up any wear on the rods.
The springs serve to keep tension on the eccentries and rods, and to relieve them
from the weight of the frame.
The longitudinally adjustable portion of the movable frame, consists of the
hollow bar m', the standards n' n² n³ and the upper cross-bar p. These standards
support the journals for the shafts of the sole-clamps and the former.
The mechanism for imparting rotary motion to the sole-clamps and former, will
be understood from an examination of Figs. 2, 4, and 10. A pulley P on the
shaft K, on which the movable frame swings, receives motion from the driving
shaft E by the belt o. A pinion, attached to the pulley P, drives the gear Q,
which runs en a stud, n, and is provided with a sprocket-wheel r. A chain or
other belt R transmits motion from the sprocket-wheel to the wheels, which is
connected by the clutch t with the shaft u, which at its inner end carries the
pinion which meshes with the gear w. The gear wis double or made long, and
its inner part projects into and meshes with the teeth of the internal elliptoid
gear T, which is secured on the shaft S, journaled in the lower cross bar m² of the
adjustable frame O. From the shaft S the motion is transmitted to the shafts
of the sole clamps and former by means of a train of gearing, y, at each
side of the frame 0. The irregular or ellipse-shaped gear T is introduced in
order to impart a rotary motion at a variable speed to the sole-blanks, so that the
cutting operation is rendered uniform, whether it takes place near the axis of
revolution, as along the shanks, or at a greater distance therefrom, as at the heels
and toes.
In order to permit the use of the elliptoid gear, the transmitting
mechanism, including the chain R, the clutch, the pinion and gear we are mounted
on a supplementary frame, V, which oscillates on the shaft K, and permits the
gear to to conform to the outline of the elliptoid gear T. Inside the gear is placed
a form W, of a shape corresponding with that of the gear, and against the edge of
which a roller 2, Fig. 10, bears. This roller is concentric with the gear w, and
causes it to maintain its proper mesh with the teeth of the elliptoid gear as the
latter revolves. The gear w is sustained by a stud 2 inserted in a suitable boss e
on the upper end of the frame V, and which stud projects through the gear and
carries the roller e. The form W is fastened to the web of the gear in any
suitable way. It is provided around its edge with a groove /³, Fig. 10, with which
a projecting flange g on the roller engages, so that the supplementary frame V
receives lateral support from the shaft S, and is prevented from springing outwards.
A tightener, Fig. 2, may be used on the chain R. It is carried by a suitable
arm on the frame V.
The speed is reduced from the driving shaft by the belt and gearing shown, su
that the elliptoid gear and the former and sole clamps make about six revolutions
per minute, a speed which has been found satisfactory in practical operation,
although it may be either greater or less.
The supplementary frame is provided at its lower end with a sleeve j
which is fitted on the shaft K. It has a suitable boss in which the stud n is
inserted, and at its upper and it is provided with bosses, and e, for the shafts u
and . An arm projects outwards and supports the outer end of the shaft 1.
The sprocket-wheels runs loose on the shaft w, except when connected thereto by
the clutch t, which is operated by the hand-lever X. One member of the clutch is
attached to the sprocket wheels, while the other member Figs. 1 and 10, is
movable lengthways of the shaft, being splined thereon. The pinion is secured
on the inner end of the shaft. The movable member t¹ of the clutch is connected
with the hand-lever X by the slide of Fig. 10 having a segment which engages with
the groove. The slide of is pivoted to the lever at its inner end, and moves in a
groove in the side of the boss ¹, being held in place by the cap. The hand lever X
is pivoted on the frame V, at ', and it is provided with a spring, s', which forces
it towards the elliptoid gear and holds the clutch disengaged. A spiral spring
may be placed between the members of the clutch, to force them apart as indicated
at, Fig. 10. The elliptoid gear has a projecting rim a', which has a notch,

page_text: Fig. 2, in which the lever X engages, when the clutch is thrown out. In order to
cause the sole-clamps and former to revolve, the operator shifts the hand-lever X
into the position represented by the dotted lines in the drawings, disengaging it
from the notch in the elliptoid gear, and engaging the clutch, so that the motion
of the sprocket-wheel s is transmitted to the gear w which drives the elliptoid
gear T, and from its shaft motion is conveyed to the sole-clamps and former by the
trains of gearing at the sides of the frame O. During the rotation of the elliptoid
gear, the lever X rides on the flanges u', but as soon as the revolution is completed,
the lever snaps into the notch ¹, and disconnects the clutch, and holds the gear
from further movement until the lever is again shifted. It will thus be observed
that the sole-clamps make one complete revolution and then remain stationary until
again started into operation, and that the sole-blanks are rounded into the proper
shape for soles during this movement. It will also be understood that during this
movement, the movable frame J is caused to swing to and fro relatively to the
cutter, by the former which bears on the guide Z during its rotation, this causing
the cutter to dress the sole-blanks to the same shape as the former, and also that the
supplemental frame V has daring this movement an independent oscillation on
the shaft K, as the gear e conforms to the shape of the elliptoid gear, with its teeth
in mesh with the teeth thereof. It will be seen that the long axis of the elliptoid
gear is arranged parallel with the length of the sole-clamps, so that, as the heel
and toe of the sole-blanks pass by the cutter, the speed of the rotation is reduced,
thus compensating for the increased length of the cut which must be taken on the
leather in consequence of the greater distance of these portions from the center of
rotation, thereby securing uniformity in the cutting operation, and presenting to the
cutter an equal amount of work during the whole revolution.
When at rest the movable frame occupies a position away from the cutter, to
enable the operator to conveniently place the sole-blanks between the clamps. It
is preferable to have the frame incline outwards from the vertical, as represented
by the full lines in Fig. 2, as thereby the blanks will remain in the blank-gauges
until the clamps are set up on them. The position of the movable frame relatively
to the main-frame is determined by the length of the connection L, which, as
represented in Fig. 12, is pivoted to the main-frame, at w', and is provided with a
notch on its lower edge, which engages with a lug y" on the movable frame, and
holds it in the position mentioned. In order to present the sole-blanks to the
cutter, the operator lifts the connection L, when the weights h draw the frame
towards the cutter, until the former rests against the guide Z, and then causes the
soles to revolve by throwing in the clutch t by means of the hand-lever X.
The sole-clamps e e' are made adjustable to and from cach other by the screw y
and hand-wheel A. The sole-clamps are made of any suitable shape or dimensions,
according to the size of the soles to be rounded by the machine. They may be made
so as to be easily changed,-being fitted on their shafts on taper bearings provide.
with keys by which the clamps are compelled to revolve with the shafts. One of
the clamps, as e', is pivoted on its shaft, so that it may adapt itself to sole-blanks
differing in thickness at their ends, as indicated by the dotted lines in Fig. 5.
The end of the shaft is flattened, and inserted in a recess in the clamp,-a pin or
pivot being inserted through the clamp and the shaft. By this construction, the
pivoted clamp is enabled to take a position with its face at an angle with that of
the other clamp, when, as frequently bappens, a number of sole-blanks are thicker
at one end than at the other, thus securing an equal pressure on the blanks, and
avoiding strain on the parts. The clamp may be attached to the shaft in any
other manner which secures the same result. A ball or universal joint may
be used.
The band-wheel, A' is secured on a sleeve a³, Fig. 5, threaded to fit the screw y',
and provided on its inner end with a circular flange e³, which is held in place by
the nut d³, provided with an annular rim which is threaded onto the projecting
portion of the frame. The screw y' is prevented from turning by a key in the
frame portion fitting a longitudinal key-way in the screw. The revolution of the

page_text: hand-wheel-A will therefore cause the screw to move lengthways, and this motion
is transmitted to the sole-clamp by the antifriction or ball-bearing, and the
shaft 2. At its inner end, the screw is provided with the plate or disc 2, Fig. 6,
which has a circular groove, for the ring of balls, m, on its inner face. The outer
end of the shaft k² is provided with a dise, which is also provided with a circular
groove for the ring of balls. o is a cap or socket, which fits over the disc ', ami
is screwed onto the edge of the disc thus forming an enclosure containing the
balls. As the shaft revolves the disc turns with it, and the balls receive the
end-thrust caused by the pressure used to clamp the sole-blanks between the sole-
clamps, and relieve the friction which would otherwise be caused thereby. At the
same time, the longitudinal motion in either direction, of the screw, is transmitted
to the shaft k². At the other side of the movable frame the end-thrust is relieved
by a corresponding ball-bearing p³, Figs. 4 and 5.
The sole-clamp e is supported on a shaft, g, Fig. 5, arranged to slide lengthways
through a bearing in the bar ², so that the former-clamp at the opposite end of
the shaft may be withdrawn from its fellow,, for the purpose of changing the
former. A spring 2, Fig. 5, surrounds the shaft and bears at one end against a
shoulder thereon, and at the other end against a collar or socket inserted in the
bearing. This construction permits the former-clamp to be withdrawn from the
corresponding clamp, as indicated by the full and dotted lines in the drawings.
One of the former-clamps is provided with pins, w, which project into holes in the
other, through holes made for them in the former, so that the former is held in
place and the clamps caused to revolve simultaneously thereby. The former
clamp is supported by the shaft 2 arranged to revolve in a suitable bearing in
the bar, and provided at its end with a grooved disc which bears against the
balls of the anti-friction bearing p³. A screw inserted in the projecting
frame, serves to take up the wear in the ball bearing.
The clamps are driven from the shaft S by the trains of gears x, y, z, on each
side the movable frame. The gearing is similar on each side of the frame, except
that the shaft is splined through its gear, ', which is prevented from shifting
laterally by the clip secured to the frame and entering a groove in the hub of
the gear.
The gears are keyed or otherwise secured to the shaft S, and revolve there-
with. The gears and are of the same size, so that the elliptoid gear T and
the sole-clamps and former revolve simultaneously. The gears and revalve on
studs inserted in the side-bars of the frame. The gears yy are made of one-half
the diameter of the gears, and they have attached to them the eccentrics 13*, which
operate, in connection with the eccentric-rods m³ m², to cause the longitudinal
reciprocating movement of the upper portion of the movable frame. These
eccentrics are made in one piece with their pinions, or attached thereto in any
suitable manner, as for instance, the pins ³, Fig. 8. Fig. 9 represents the stud
on which the pinion and the eccentric revolve, which is provided on its outer
end with a nut and washer 3 which holls the eccentric strap onto the eccentric.
The lower ends of the eccentric-rods are pivoted at 3, to the lower portion N
of the movable frame. The eccentric-rod m is provided with an opening through
which the shaft S passes of sufficient dimensions to permit the vibration of the
rod. As the eccentrics revolve the adjustable portion of the frame moves up
and down, the rods sliding in the frame N. The sole-clamps, former, and their
driving mechanism, including the elliptoid gear T, partake in this movement, as
indicated by the full and dotted lines in Fig. 4. The effect of this movement in
varying the relations of the sole-blanks and the cutter, while the blanks are
revolving in contact with the cutter, under the influence of the former, is
illustrated in the diagrams, Figs. 21 to 28 inclusive, which represent the various
positions of the parts during a complete revolution of the blanks, at distances of
about a quarter turn apart. As the eccentric revolves twice during one revolution
of the shaft S, the adjustable portion of the movable frame, will make two
reciprocating movements during one revolution of the blanks. Thus Fig. 21

page_text: represents the position of the blank and the cutter, with the center of rotation of
the blank directly opposite the axis of revolution of the cutter-shaft, this figure
showing the relation of the parts when the movable frame is first moved up so as to
bring the blanks against the cutter. In Fig. 22, the blank having made about an
eighth of a revolution, the center is shifted above the axis of the cutter, in
consequence of the movement of the frame O, and in Fig. 23, when the blank has
nade a quarter-revolution, the center has descended to the line of the axis of the
cutter. At this time, the cutter is dressing the heel of the sole, the speed of
rotation of the blank having been gradually reduced, because the gear w is engaged
with one of the more elongated portions of the elliptoid gear T. In Fig. 24, the
center is below the axis of the cutter, in Fig. 25 it is again opposite it, in Fig. 26
it has risen above it, in Fig. 27 it is again opposite it, and in Fig. 28 it has again
travelled below it. This construction facilitates the cutting, avoids unnecessary
strain, and causes the machine to work freely and easily at all points in the
revolution. The shitting motion of the frame O reduces the resistance between the
former and guide, by presenting the former at a more favorable angle to the guide.
The construction of the cutter G will be understood from Figures 13 to 18
inclusive. Care the knives, which are clamped between the head D' and the
self-adjusting collar E', which is used to prevent springing the shaft in case of any
variation in the width of the knives. His a collar on the cutter-shaft F, against
which a sleeve, carrying the head D' bears. The inner surfaces of the head D'
and the collar El are provided with transverse grooves to receive the sides of the
knives, as indicated at K K Fig 16. Lis a sleeve which is forced up against the
collar E by the jam-nuts M' M fitting a threaded portion of the shaft. At its
inner end the sleeve L' is provided with a collar, N' the inner surface of which is
turned spherical, to correspond with the spherical surface of the collar E'. The
hole in the collar E' through which the shaft F passes, is made tapering, as
represented at O' in the sectional view, Fig. 15, so that the collar E¹ may adjust
itself slightly to suit any irregularity or difference in thickness in the knives C C²,
while still maintaining an effective clamping pressure upon them, when the jam-nuts
are screwed up.
*
In order to dress the edges of the soles clean, and to prevent the formation of
any fuzziness at the edges, which is especially likely to occur on the flesh side of
the leather, a revolving circular guard is employed the edge of which bears against
the side of the blank, and is provided with a projecting flange or groove which
draws the fuzz into the cutter and subjects it to the action of the knives so that it
is entirely removed and the edges of the soles finished clean and neat,-in such
condition that, for some classes of shoes, they may be used without any further
dressing or edge-trimming." These guards may be used on either or both sides
of the blanks, and either or both of them may be movable or adjustable length-
ways of the shaft. In the construction represented in the accompanying drawings,
are shown two of these guards, e and d, both of which are movable lengthways
of the shaft, being connected together, by suitable mechanism, such for instance as
that represented in Figs. 3 and 12, so that they may be separated from each other
to expose the cutter, just before the blanks are presented thereto. The edge of
the guard which bears against the side of the blank is provided with an inclined
or eccentric groove, V', Fig 13, which draws the uncut fuzz adhering to the corner
of the edge of the sole into the knife by which it is removed. A corresponding
V, performs a similar function for the knife C. In addition to the groove,
groove,
inwardly projecting flanges U1 U2 carry the fuzz inside the cutting edges of the
knives. The inner edge of these flanges is inclined or eccentric, preferably on the
same lines with the grooves or channels VV. These flanges terminate
immediately in front of the knives, their ends projecting inward a short distance
inside the cutting edges. The grooves may be used without the internal flanges,
with satisfactory results, but it is preferred to employ both, as the fuzz is
thereby brought positively inside the cutting edges of the knives. Instead of the
grooves VV2, projecting flanges may be employed, which will give a continuous

page_text: bearing on the side of the blanks, and carry the fuzz inside the knives. The guard
is provided with a corresponding arrangement. The head D' and collar E' are
notched on their peripheries, so as to permit their introduction inside the guards
and the internal flanges U Ú, as indicated at Q Figs. 16 and 17.
The guard d is a cylinder of sufficient length to move over the knives, and
provided with a grooved hub, P' Fig 15, which slides on the sleeve L', being
splined or otherwise attached so as to revolve therewith. The adjustment of the
guard d lengthways of the shaft is indicated by the full and dotted lines in Fig. 15.
The groove R' in the hub P receives a shifter, 3, Figs. 11 and 12, which is
connected by an arm with a sleeve arranged to slide on a rod m³ secured to the
boxes on the main-frame. The sleeve has a lug n', Fig. 3, to which the upper
end of the lever of is connected by a suitable slotted joint. The lever of, is pivoted
to the main-frame at and extends outwards and is connected with the rod S',
attached to the treadle lever T. The operator, by depressing the outer end of the
pivoted treadle lever T, shifts the lever of on its pivot p³, as indicated by the full
and dotted lines in Fig. 3, and this movement is transmitted by the sleeve and
shifter 3, to the guard, so as to move the latter lengthways of the cutter-shaft,
while revolving, and to expose the knives to the distance required by the thickness
of any number of sole-blanks presented to the cutter. A spring, Fig. 3, serves
to restore the parts to their former position, the guard enclosing the knives. A
weight may be used as an equivalent for the spring.
The guard e, if movable lengthways of the shaft, may be connected with the
lever so as to be shifted at the same time by the treadle T. Only a limited
amount of motion if any need be given to one of the guards,-which in the con-
struction shown is the guarde,-just enough to permit the presentation of the
blanks on the side of the guard, the sole clamp e being arranged in line with the
edge of the guard. The hab of the guard e is provided with a groove, W1 Fig. 14
in which a shifter, Fig. 11, is fitted. This shifter is connected with a sleeve³
arranged to slide on the rod m³, and is pivoted to the upper end of the lever 13,
which is pivoted to the main frame at A rod, w³, serves to transmit the motion
of the lever o to the lever 3,-the rod being arranged to slide through a hole in
the lower end of the lever, and being provided with the adjusting nuts ³, so that
the amount of motion given to the guard e may be varied. A spring on the rod w³
ensures the return movement of the guard.
The operator, having inserted and secured a batch of sole-blanks between the
clamps e el, depresses the treadle T', thereby separating the guards to the necessary
distance to permit the blanks to enter between them, and, then, by releasing the
treadle, allows the spring to bring the edges of the guards in contact with the
sides of the leather after it has been presented to the cutter.
The guide against which the former bears when the machine is dressing the
soles, is shown detached in Fig. 29. It consists of a ring, Z of the same diameter
on the outside as the cutter. It is supported by the bracket in a position which
is substantially concentric, with the cutter shaft F, but which may be adjusted in
two directions at right angles with each other as indicated by the full and dotted
Jines, in Fig. 30. The bracket 1 is attached to the side of the journal-box by a
screw passing through a slot, so that the bracket and guide can be adjusted up and
down, a rib or flange on the bracket projecting into the box serving to hold
the bracket in position. The bracket carries a hollow hub J, through which the
threaded stem 12 passes. The stem is provided with jaws Us, between which the
guide Z is supported on a tube X, secured in place by the set-screw or other
device V. The tube cucircles the cutter-shaft, and is made of sufficient diameter
to permit the requisite adjustment of the guide. The stem I, is provided with
the nuts TT, by which the adjustment of the guide in the horizontal direction is
effected. The hub or one of the nuts may be provided with a scale, which
indicates the position when the guide Z is concentric with the shaft and cutter, or
its adjustment there.rom in either diection. A scale also may be applied to the

page_text: qurnal-box or bracket, to indicate the adjustment of the guide in the vertica
direction. Three inches in diameter are suitable dimensions for the cutter and
guide. Fig. 30 serves also to illustrate the relative positions of the guide and
former when the axis of the rotation of the sole-clamps has been shifted past the
cutter by the movement of the frame O.
In Fig. 19 is represented a former of a shape which, although difficult, is exactly
reproduced in the finished soles by the improved rounding machine. Fig. 20
represents one of the sole-clamps in face view. It is preferably recessed on its
face, and may be made of any desired shape or dimensions.
It will be understood that the form of the variable speed gear may be modified
without materially affecting the result sought. Thus the gear represented in face
view in Fig. 32, and edge view in Fig. 33, has been employed with good results,
being driven by the gear, the movements of which are controlled by a roller
bearing against the Hanges. The motion of the gear will in this case be
reversed, which may be readily accomplished by using a straight instead of a
crossed belt o. The row of teeth in the gear shown in Figs. 32 and 33 are
disposed in the form of an outline of a sole. It is preferred however to employ a
gear of an ellipse-shaped or elliptoid form similar to that partially represented in
Fig. 31. It will be observed that the flange of this gear and the row of
teeth are curved inward at R, and that the form W is given a corresponding
shape, which arrangement facilitates the operation of the parts and the rounding of
the soles by the cutter.
The blank-gauges are supported by an arm or arms which extend outward from
the cross-bar D and pass between the bars and g of the movable frame J. The
gauges consist of two rods, of and %, which bear against the sides of the sole-blank
and the former above and below the shank, and of a curved arm which comes
against the lower part of the former at one end and at the other is provided with
a plate which supports the sole-blanks until they are clamped between the sole-
clamps. These arms are adjustable horizontally and vertically, and they are made
to slide up towards and away from the former and the sole clamps. In the
construction shown, the gauges are supported by a standard which slides on the
rods inserted in the end of the arm E, and arranged, if preferred, to swing on a
pivot, a clamping device being employed. The arms are attached to blocks
adjustable lengthways of the standard by set-screws or clamp-nuts. The arms o
and are secured by a single clamp-nut although relatively adjustable. The ends
of the arms which bear against the former, are provided with adjustable
contact pieces, The operator moves the blank-gauges up to the sole-clamps
and into contact with the former, to enable him to place the sole-blanks properly
in the sole-clamps, and then, after the clamps have been forced together so as to
secure the blanks between them, the gauges are moved away.
17.9
It will be obvions to the skilled constructor that many changes may be made in
the machine herein described, without departure from the principles of this
invention. Thus, the cutter itself may be made movable, or it may be arranged so
that its axis will travel past the axis of the sole-clamps, the variable rotation of the
sole-clamps may be secured by any suitable mechanism, the carriage for the former
and the sole-clamps may be constructed in any suitable way, cams may be substituted
for the eccentrics, any suitable form of cutter may be used, the guards over the cutter
may be arranged in various different ways, gearing may be used instead of the
chain R, the cutter-shalt may be placed with its axis vertical instead of horizontal,
and the correspon ling changes made in the arrangement of the carriage and the 5
driving mechanism, and various other modifications introduced into the machine
still employing the invention herein described and claimed.
The gearing at the sides of the movable frame is protected by the covers, w³,
Fig. 7, not shown in Fig. 4. The sides of the bosses in the frame O
away, as indicated at, Fig. 4, so as to permit this frame to approach as near as i
may be cut
possible to the main-frame and the cutter.

page_text: Having now particularly described and ascertained the nature of the said inven-
tion as communicated to me by my foreign correspondent and in what manner the
same is to be performed, I declare that what I claim is-
1. The combination, in a sole-rounding machine, of a rotating cutter, a vibrating
carriage, revolving sole-clamps and former, and means substantially as described
for shifting the sole-clamps, while revolving, relatively to the cutter, substantially
as described,
2. The combination, in a sole-rounding machine, of a rotating cutter, a vibrating
carriage, revolving sole-clamps and former, and means for shifting the sole-clamps
while revolving across the path of their vibration relative to the cutter, substantially
as described.
3. The combination, in a sole-rounding machine, of a relatively movable rotating
cutter and revolving sole-clamps and former, and means substantially as described
for shifting the cutter and clamps relatively to each other, substantially as
described.
4. The combination, in a sole-rounding machine, of a relatively movable rotating
cutter and revolving sole-clamps and former, a vibrating carriage or frame
consisting of two relatively adjustable portions, and mechanism substantially as
described for shifting one of the said parts relatively to the other, substantially as
described.
5. The combination, in a sole-rounding machine, of a rotating cutter, a movable
carriage supporting revolving sole-clamps and a former, and consisting of two rela-
tively movable portions, one of which is provided with a revolving eccentric or cam
acting upon a part of the other portion, substantially as described.
6. The combination, in a sole-rounding machine, of a main frame, supporting
a rotating cutter, a movable carriage supported thereon and carrying revolving
sole-clamps and a former, and consisting of two relatively movable portions, and
mechanism for shifting the portion carrying the sole-clamps and the former while
these parts revolve, substantially as described.
7. The combination, in a sole-rounding machine, of the frame A carrying
rotating cutter G, the movable carriage J, formed of the frame N and the rela-
tively adjustable frame O, supporting the revolving sole-clamps e el and former,
and a revolving cam or eccentric operating to produce a relative movement of the
frames, substantially as described.
8. The combination, in a sole-rounding machine, of a rotating cutter, and a
carriage supporting revolving sole-clamps and a former, the cutter and carriage
being relatively movable in one direction to cause the cutter to dress the soles to
the shape of the former, and also relatively adjustable in a lateral direction while
the clamps revolve and reciprocate under the influence of the former, substantially as
described.
9. The combination, in a sole-rounding machine, of a relatively movable rotating
cutter a suitable carriage, and revolving sole-clamps and a former, and mechanism
adapted to revolve the sole-clamps at a variable speed, whereby the rotation of the
sole-clamps is retarded, while the cutter is dressing the toe and heel, substantially
as described.
10. The combination, in a sole-rounding machine, of a relatively movable rotating
cutter, a suitable carriage, and revolving sole-clamps and a former, and variable
speed gearing arranged to revolve the sole-clamps at a varying rate, whereby the
rounding of the heel and toe is effected at a reduced speed, substantially as
described.
11. The combination, in a sole-rounding machine, of a relatively movable rotating
cutter and revolving sole-clamps and a former, and an elliptical or elliptoid gear
arranged to transmit rotary motion to the sole clamps at a variable speed, substan-
tially as described.
12. The combination, in a sole-rounding machine, of a rotating cutter, the
pivoted frame carrying revolving sole-clamps and a former, the elliptical or elliptoid

page_text: gear T, and a movable arm carrying a gear meshing with said gear T, substantially
as described.
13. The combination, in a sole-rounding machine, of a relatively movable rotating
cutter and carriage, revolving sole-clamps and a former, mechanism for revolving
the sole-clamps at a variable speed, and mechanism for shifting the cutter and sole-
clamps relatively to each other while the clamps revolve and reciprocate under the
influence of the former, substantially as described.
14. The combination, in a sole-rounding machine, of a relatively movable rotating
cutter and a pair of sole-clamps, a suitable carriage and a former, one of the clamps
being rigid on its shaft and the other pivoted on its shaft so as to revolve there-
with but movable at its ends relative to the rigid clamp to compensate for stock
different in thickness at the heel and tue, substantially as described.
15. The combination, in a sole-rounding machine, of a relatively movable rotating
cutter and sole-clamps, a suitable carriage, and a former, and a revolving guard
applied to the cutter and adapted to carry uncut portions of the edge of the stock
into the cutter, substantially as described.
16. The combination, in a sole-rounding machine, of the sole-clamps, the rotating
cutter and a guard applied thereto and provided on its edge with an inclined or
eccentric groove or flange, substantially as described.
17. The combination, in a sole-rounding machine, of the sole-clamps, the rotating
cutter, and a guard applied thereto and provided on its edge with an inclined or
eccentric groove or Hange, and with an inwardly projecting inclined or eccentric
flange or rib, substantially as described.
18. The combination, in a sole-rounding machine, of the sole-clamps, a rotating
cutter, and two guards applied to the cutter and provided on their opposing edges
with inclined or eccentric grooves or flanges, substantially as described.
19. The combination, in a sole-rounding machine, of a relatively movable rotating
cutter and carriage, a pair of opposing sole-clamps, supported on positively driven
shafts, and anti-friction bearings applied to each of the said shafts, to relieve the
friction of the clamps, while revolving, substantially as described.
20. The combination, with the sole-clamps eel, of the cutter-shaft F, knives C'C',
and heads D' E one of which is self-adjusting, substantially as described.
21. The combination, with the sole-clamps, e el of the cutter shaft F, head D',
self-adjusting head E', sleeve or collar L', and clamping nut M'; substantially as
described.
22. The combination, with the cutter-shaft F, of the knives CC, head D',
self-adjusting head E, sleeve L', and adjustable guard d, substantially as
described.
23. The combination, with the cutter-shaft F, of the knives C₁ C², head D',
self adjusting head E', sleeve L', and adjustable guards c and d, substantially as
described.
24. The combination, with the cutter G, of the adjustable guards and d, and
means for operating them simultaneously, substantially as described.
25. The combination, with the cutter G, of the adjustable guards c and d,
levers of and 3, rod w³ and treadle lever T', substantially as described.
26. The combination, with the sole-clamps e el, of the cutter-shaft F, knives C¹ C²,
heads D' E', one of which is self-adjusting, and the adjustable guard d, adapted to
carry uncut portions of the stock into the cutters, substantially as described.
27. The combination, with a rotating cutter, of the movable carriage carrying
the revolving sole-clamps aud former, gearing at each side for revolving the sole-
clamps and the former, the shaft. S, and means substantially as described for imparting
rotary motion at a variable speed to the said shaft, substantially as described.
28. The combination, with a rotating cutter, of the movable carriage, carrying
the revolving sole-clamps and former, gearing at each side for revolving the sole-
clamps and the former, the shaft S, elliptical or elliptoid gear T, and movable driving
pinion, substantially as described.
29. The combination, with a rotating cutter, of the movable frame carrying the
3.4

page_text: revolving sole-clamps and former, the gearing at each side for revolving the sole-
clamps and the former, the shaft S, elliptical or elliptoid gear T, movable driving
pinion, movable support V and means for driving the pinion, substantially as
described.
30. The combination, with a rotating cutter, of the movable frame J, consisting
of two relatively movable portions, one of which carries the revolving sole-clamps
and the former, and is provided with two trains of gearing, the shaft S, and the
eccentrics or cams 13, adapted to produce a reciprocating motion between the two
portions of the frame, substantially as described.
31. The combination, with a rotating cutter, of the movable frame J consisting
of two relatively movable portions, one of which carries the revolving sole-clamps
and former, and is supported on the other by a spring or springs, and means for
reciprocating the relatively movable portion, substantially as described.
32. The combination, with a rotating cutter, of the movable carriage carrying the
revolving sole-clamps and former, and the adjustable guide Z, arranged to he
adjusted in two directions at right angles with each other, and means for shifting
the sole-clamps and former relatively to the cutter while revolving under the influence
of the former, substantially as described.
Dated this 4th day of August 1893.
W. P. THOMPSON & BOULT,
Agents for the Applicant.