Improvements in Machines for Shaping the Bottoms of Shoes.
Year: 1899

page_text: Application, 5th Dec., 1899--Accepted. 25th Aug
1000
5
COMPLETE SPECIFICATION.
Improvements in Machines for Shaping the Bottoms of Shoes.
I, ELOUILD DUPLESSIS, of St. Hyacinthe, County of St. Hyacinthe, Province
of Quebec, Canada, Shoe Manufacturer, do hereby declare the nature of this
invention and in what manner the same is to be performed, to be particularly
described and ascertained in and by the following statement:
This invention relates to machines for shaping the bottoms of shoes, and its
object is to provide a machine of this character which automatically shapes the
bottom of a shoe. A further object is to provide a machine in which the pres-
sure upon the bottom of the shoe may be regulated. A further object is to
provide a bottom shaping machine with a flexible shaping roller, and with
means for varying the shape of said flexible roller. A further object is to
provide a machine for shaping the bottom of shoes which is simple in construc-
tion, effective in operation and which can be manufactured at a comparatively
moderate cost.
To these ends, the invention consists in a machine for shaping the bottom
of shoes, constructed substantially as hereinafter illustrated and described and
defined in the appended claims.
Referring to the drawings, in which similar letters of reference indicate
similar parts throughout the several views.
Figure 1 is a view in perspective of a machine for shaping the bottom of
shoes, constructed in accordance with this invention.
Figure 2 is a view in elevation thereof,
Figure 3 is a similar view, showing the other side of the machine.
Figure 4 is a view in elevation, partly in section to show details of construc-
ion.
Figure 5 is a similar view drawn on an enlarged scale, showing the lower
ortion of the machine.
Figure 6 is a top or plan view.
Figure 7 is an end elevation, viewed from the rear of the machine.
Figure 8 is a similar view, looking from the front of the machine.
Figure 9 is a view in elevation of the jack frame, partly in section.
Figure 10 is a view in perspective of the adjustable last support, the parts
ing separated to show the construction.
Figure 11 is a view in perspective of the adjustable weight, showing the
chanism for adjusting the weight upon its supporting rod.
Figure 12 is a view
its adjusting mechanism detached from the machine.
perspective of the flexible shaping roller and a portion
Figure 13 is an end view thereof, showing the flexible roller adjusted so as
shape the edges of the bottom.
igure 14 is a detail view of a portion of the adjusting mechanism of the
ible shaping roller.
n machines for shaping the bottom of shoes, as ordinarily constructed, it is
essary for the operator to swing the jack frame by hand, as the bottom is
to the shaping roller, in order to properly shape "the edges of
[Price Sd.

page_text: because of the use of a rigid shaping roller. This operation not only necessi-
tates tiresome labor, but is defective, in that as one edge of the bottom is
pressed by the shaping roller, the other edge has a tendency to bulge up, render-
ing it necessary to pass the bottom repeatedly beneath the shaping roller, and
resulting in defective bottoms, it being almost impossible to shape both edges
of the bottom uniformly Moreover, in feeding the bottom to the shaping roller
in the old form of machines, the pressure was applied through the medium of
a foot lever, which rendered it necessary for the workman to stand upon the
lever in an awkward position, at the same time the jack frame was being oscil-
lated. The pressure by this method could not be satisfactorily regulated, as
in operating upon heavy bottoms the pressure would not be sufficient, and in
operating upon light bottoms the pressure was liable to be unequal and exces-
sive.
To obviate these defects and lessen the labor attending the shaping of bottoms,
the machine herein described has been devised, whereby the entire bottom is
uniformly shaped and the pressure regulated so as to provide the exact amount
of pressure required by bottoms of varying thickness, without requiring the
personal efforts or attention of the operator.
In the drawings, A represents a suitable frame, which may be of any usual
or preferred form. Suitable bearings a are fixed upon said frame in which is
journalled the operating shaft a¹, having a balance wheel at one end and
suitable pulleys a³ and at at the other end, one of which is loose, which are
connected by a belt to the source of power, not shown. A belt shifting device A¹,
which may be of any usual or preferred form, is provided for applying and
shutting off the power. At an intermediate point upon the shaft a are fixed
two disks af, which are suitably spaced, between which is eccentrically fixed a
crank pin a', upon which is sleeved the crank rod 8, as best shown in Figure 4.
Upon the shaft a¹, adjacent to the balance wheel a² is fixed a friction disk a
having at its outer face a gear wheel a¹, which meshes with a gear wheel all
fixed upon the outer face of the friction disk a, which is fixed upon a shaft a¹³
journalled in suitable bearings mounted upon the frame A.
A standard B is mounted upon the frame A adjacent to the shaft a¹, and
is provided with suitable bearings, in which is journalled a hollow shaft or
sleeve b, having the eccentric cam 61. Within the hollow shaft b is a shaft 12
arranged eccentrically with respect to said cam b¹ and fixed upon the outer
end, of said shaft 62 is the friction wheel 63, which is adapted to be thrown into
and out of engagement with the friction disks and a¹, as best shown in
Figure 5.
Fixed to the hollow shaft b is an upwardly projecting lug b, which is pro-
vided upon its upper end with the lateral extensions 5 and 6, which project
in opposite directions upon each side of the said lug b. Pivotally connected
with the extension b is an operating rod 67, which is adjustably connected at
its other end to an operating lever BI, by means of a pin adapted to engage one
of a series of perforations formed in said lever B¹.
The tubular or hollow shaft is provided at its end portions with eccentrics
or cams which are mounted in proper bearings of the bracket B, as shown by
Figure 3 of the drawing, whereby this tubular shaft is adapted to be turned
on its axis for the purpose of shifting the drive shaft 62. This drive shaft
extends through the tubular shaft so as to be free to rotate therein and so as
to be movable with the tubular shaft when the latter is turned on its axis either
by shifting the hand lever B¹ or when actuated by the automatic shifting rod H.
It is to be understood that the drive shaft is provided with a gear pinion
adapted to work in a slot of the tubular shaft, as shown by Figure 4, so that
the pinion will have intermeshing engagement with the toothed segment d
on the vibratory frame D, and this drive shaft is provided at one end
with the friction wheels 63, the latter being presented in operative relation to
the oppositely rotating friction discs a³, a¹², as shown by Figure 5. The move-

page_text: being linked at to the hand lever B' and furthermore having a shifting rod E
smart is effected by the upstanding arm 6'; said arn
slidably connected thereto. Said shifting rod carries the adjustable stops h,
adapted to alternately impinge on the arm b, and the rod H is connected to
5 a lug on the vibratory frame, said lug being clearly represented by Figure 4
With the friction wheel b in engagement with the friction disc a, the tubular
shaft occupies the position shown by Figure 9 and the frame I) is driven in
one direction by the shaft be.
described direction, the rod H is drawn so as to make one stop impinge on the
As said frame D makes this movement in tho
Carm and thereby turn the tubular shaft b in its bearings, so that the eccen-
tries will operate to shift the tubular shaft, and with it the drive shaft be,
thereby moving the friction wheel from engagement with the disc and into
engagement with the other disc 12, the effect of which is to reverse the direc-
tion of rotation of the drive shaft 2 automatically.
5
From the above description, it will be apparent, that by moving the lever B,
the friction wheel & may be thrown into or out of engagement with the friction
disk or a, or retained in an inoperative position between the two disks u
and a, and out of engagement with either.
tion wheel b can be rotated in either direction in accordance with the friction
disk with which it is thrown into engagement.
It also obvious that the fric-
Pivotally supported in suitable brackets mounted upon the frame A is the
oscillating frame D, which is provided at one end with a toothed segment d,
which is adapted to mesh with a pinion fixed upon the shaft 62, as best
shown in Figure 4.
yoke having upwardly extending arms and 3, within which is pivotally sup-
The other end of the oscillating frame D is formed into a
ported the jack frame D', so as to permit said jack frame to swing freely in
said oscillating frame. The upper end of the arm is provided with two out-
wardly extending pins d, upon which are rotatably mounted the friction
rollers d, clearly shown in Figure 1.
The jack frame 1', shown in detail in Figure 9, is also yoke shaped and con-
forms substantially in shape with the yoke of the oscillating frame D. One
of the arms of the jack frame D' is provided with a pivot pin which is
dapted to engage an eye formed in the upper end of the oscillating frame 1),
hile the other arm is provided with a lateral extension 9, in which is
ormed a series of openings or sockets 10. Upon the under surface of the
xtension is secured a plate ", which is adapted to rest and slide upon the
iction rollers, clearly shown in Figure 1. A block E, having a threaded
pening e, is adjustably mounted upon the upper face of the extension, the
ntacting surfaces of the block and extension being suitably curved in order
maintain the proper adjustment.
A toe cap E is secured to the block E, by means of a threaded shank e' en-
ging the opening e, so as to permit of the vertical adjustment of said cap.
e upper surface of the toe cap E' is suitably curved or hollowed so as to
apt it to receive and retain the toe portion of the last. The under surface
the toe cap is provided with a notch e2 which is adapted to receive the end
a spring pressed pin e³ mounted in the block E, by means of which the toe
is prevented from accidentally turning. A recess et is formed in the upper
face of the block E to receive the end of the pin e³, when the same is pressed
n, to permit of the adjustment of the toe cap.
nk el is provided with a pin e, which is adapted to engage one of the
ets 10, by means of which the block E is held in its adjusted position.
The extremity of the
hollow arm E is formed integral with the jack frame D' and extends
ardly between the arms and 8. The upper end of the arm E is pro
d with a threaded collar e and within said collar is loosely sleeved the
sting nut e', which is of slightly smaller diameter than the opening of
collar e, and is provided with a flange upon its upper end. A last sup-
ng rod es is threaded in the nut e³, so as to be adjusted vertically, and its

page_text: lower end is engaged by a suitable spring e, the end of which is secured to
the arm E, by means of which the rod es is held back to the limit of its move-
ment in one direction in the collar 6. By means of this construction the last,
which is secured in the usual manner upon the end of the rod e, is adapted to
move slightly under the pressure of the shaping roller.
It is apparent, from the construction above described, that the rotation of
the shaft 2 will cause an upward or downward movement to the oscillating
frame D, corresponding with the direction of rotation of the friction wheel 63,
and this movement will force or feed the last, carrying the bottom being oper-
ated upon, back and forth under the shaping roller.
To a lug formed upon the lower portion of the oscillating frame 1 is pivoted
a rod H, the outer end of which plays freely in an opening formed in the lateral
extension 66 of the lug bt. At suitable points on the rod H are adjustably fixed
the stops and ', located respectively on either side of the said extension 66,
as shown in Figure 5. During the movement of the oscillating frame D, the
rod H moves freely through the extension 66 until one or the other of the stops h
or h¹ comes into contact therewith, whereupon the hollow shaft will be rotated
and the friction wheel 63 thrown out of contact with its operating disk and into
contact with the other, whereby the movement of the oscillating frame is re-
versed. This construction also prevents the toothed segment d from running
.off the pinion d. By suitably adjusting said stops hand h¹ upon the rod H,
the oscillating movement of the frame 1) may be limited to suit the require-
ments of the work being done.
Upon the rear of the frame A is the standard F, in which is pivoted the
link f, the lower end of which is pivotally connected with the crank rod 8.
The upper end of the link f is pivotally connected with the rod f¹ which extends
forwardly over the top of the oscillating frame 1). Upon the rod f¹ are fixed
the brackets and f³, within which are journalled the shafts f and f³, in the
forward extremities of which are journalled the two sections f and f of the
flexible shaping roller F. The general conformation of this shaping roller F
corresponds to those in common use, being of the smallest diameter at the
center and curving from thence to the outer ends. The shifting roller form-
ing an important feature of this invention is, however, made in two similar
sections, f and f which are rotatably supported in the ends of the shafts fo
and respectively as clearly shown in Figures 12 and 13. One of the sections
is provided with a socket and the other with a pin at their meeting faces, whereby
they are supported under pressure and retained in proper position with respect
to each other.
At a suitable point upon each of the shafts f and f³ is fixed a sleeve f8 and f",
having toothed segments f10 and f" upon their adjacent faces, whereby the
movement of one shaft will cause a corresponding movement of the other shaft.
One of these sleeves, preferably f, is provided with an outwardly extending
lug f having upon its extremity a friction roller f3, clearly shown in Figures 12,
13 and 14. This friction roller f13 engages a guide-way formed by a bracket f¹
slidably mounted upon the upper end of a supporting rod f15. Pivotally con-
nected with the bracket f¹ is an operating lever F, the rear end of which is
pivoted to a rod f16, adjustably secured in an arm f fixed to the rod f15, (see
Figure 1). A suitable spring 18 is coiled about the rod f15 and serves to return
the lever to its normal position after having been depressed by the operator.
By reason of the connection of the crank rod as with the disk a, it will be
apparent, that the rotation of said disks will impart a horizontally reciprocating
movement to the shaping roller F, while depressing the lever F³ will force the
shaping roller to assume the desired curvature to simultaneously shape both
edges of the bottom.
To the bracket f³ are pivotally connected the rods G, which are pivotally
connected at their lower ends to lugs g fixed upon a cross bar g', see Figures 4,
7 and 8. Upon the cross bar g' is supported a strong spring 9, which is secured

page_text: of Droes.
ported in a notch formed in the curved projection g of the lever bar g, wh
ore the bolt 3, while the other end of this spring is s
is pivotally supported by means of a tie bolt y in the lower part of the frame
see Figure 4. The lever bar g extends beneath the franie A and along
5 entire length thereof, and slidably secured upon said lever bar is the weight
which is provided with an indicator arm g. A suitable scale is formed up
the side of the frame A, whereby the amount of pressure upon said lever b
and consequently upon the shaping roller F can be accurately determine
The weight G is provided with perforated lugs 5, and a suitable stop and
10 handle rod 10 is slidably sleeved in the perforations of said lugs 98.
F
One end of the rod go is provided with a suitable handle, while the other en
is bent at an angle whereby it may be turned into and out of contact with th
stop g, as is clearly shown in Figure 11.
By means of this construction, the rod can be made of sufficient lengt
15 to permit of the convenient adjustment of the weight to any point upon the
lever bar g, without projecting an objectionable distance beyond the frame A
It is believed that the operation of the machine will be fully understood, in
view of the above description, without further detailed explanation.
While I have herein shown a preferred form of carrying my invention into
20 effect, yet I do not desire to limit myself to such preferred details of construc-
tion, but claim the right to use any and all modifications thereof which will
serve to carry into effect the objects to be attained by this invention, in so far
as such modifications and changes may fall within the spirit and scope of my
said invention.
5. Having now particularly described and ascertained the nature of my said
invention, and in what manner the same is to be performed, I declare that what
I claim is:
-
1. In a machine for shaping the bottoms of shoes, the combination with
a suitable jack frame of a flexible shaping roller, substantially as described.
2. In a machine for shaping the bottoms of shoes, the combination with
a suitable jack frame of a flexible shaping roller; and means for varying the
shape of said shaping roller, substantially as described.
3. In a machine for shaping the bottoms of shoes, the combination with
an oscillating frame and a jack frame mounted to automatically swing therein,
of a flexible shaping roller, substantially as described.
4. In a machine for shaping the bottoms of shoes, the combination with
an oscillating frame and a jack frame mounted to automatically swing therein,
of a flexible shaping roller; and means for varying the shape of said shaping
oller, substantially as described.
5. In a machine for shaping the bottoms of shoes, the combination with
flexible shaping roller of an oscillating frame; and a jack frame pivotally
ounted therein and adapted to automatically swing by the movement of said
exible shaping roller, substantially as described.
6. In a machine for shaping the bottoms of shoes, the combination of a
exible shaping roller; means for varying the shape of said shaping roller; an
cillating frame; means for imparting an oscillating movement to said oscil-
ting frame; and a jack frame pivotally mounted in said oscillating frame and
apted to be swung automatically by the movement of said flexible roller,
bstantially as described.
7. In a machine for shaping the bottoms of shoes, the combination of a
tible shaping roller; means for varying the shape of said shaping roller; an
illating frame; means for imparting an oscillating movement to said frame;
ans for limiting the movement of said oscillating frame in either direction;
a jack frame pivotally mounted in said oscillating frame and adapted to be
ng automatically by the movement of said shaping roller, substantially
ribed.
a

page_text: 8. In a machine for shaping the bottoms of shoes, the combination of an
oscillating frame; a jack frame pivotally mounted therein, a rod pivotally sup-
ported above said oscillating frame; means for imparting a horizontal recipro-
cating movement to said rod; parallel shafts journalled in bearings fixed upon
said rod intermeshing toothed segments fixed upon said shafts; means con-
nected with one of said segments for rotating said shafts; and a divided shaping
roller rotatably mounted between said shafts, substantially as described.
9. In a machine for shaping the bottoms of shoes, the combination of an
oscillating frame; a jack frame pivotally mounted therein; a rod pivotally sup-
ported above said oscillating frame; means for imparting a horizontally recip-
rocating movement to said rod; a flexible shaping roller rotatably supported
upon said rod; means for varying the shape of said shaping roller; a rod pivot-
ally connected with the aforesaid rod; a spring connected to the lower end of
said rod; a lever bar connected with one end of said spring; and a weight
adjustably mounted upon said lever bar, substantially as described.
10. In a machine for shaping the bottoms of shoes, the combination of an
oscillating frame, having vertically extending arms integral therewith; friction
rollers mounted upon the extremity of one of said arms, and an eye formed in
the extremity of the other of said arms; a jack frame having vertically extend-
ing arms; a perforated extension fixed upon one of said arms and adapted to
rest and slide upon said friction rollers, and a pivot pin integral with the other
of said arms and adapted to engage the eye of said oscillating frame; a last
support carried by said jack frame; a flexible shaping roller mounted above
said jack frame; means for varying the shape of said shaping roller; means
for imparting a horizontally reciprocating movement to said shaping roller;
means for oscillating said oscillating frame, and an adjustable weight connect-
ing with said shaping roller, substantially as described.
Dated this 4th day of December 1899..
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.