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Патент USA US2063484

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5484
W. C. CARD, JR
SHOE RASPING DEVICE
Filed Dec. 13, 1933
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INVENTOR
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Patented Dec. 8, 1936
2,t3,484
2,063,484
SHOE RASPING DEVICE
William 0. Card, in, Winthrop, Mass, assignor
to Compo Shoe Machinery Corporation, New
York, N. Y., a corporation of Delaware
Application December 13, 1933, Serial No. 702,110
(Cl. 12—17)
2 Claims.
5
This invention relates to a machine for use
in the manufacture of footwear and, more par
roXylin cement or the like. Such a method of
shoe manufacture is disclosed for example in the
ticularly, to that type of footwear wherein ce
ment is used adhesively to a?ix an outer sole to
Sbicca Patent No. 1,838,708 issued December 29,
1931. However, as will be readily understood by
a lasted shoe upper.
one skilled in the art, the use of the improved
machine will be found to be advantageous wher
Generally, it is an object of the invention to
ever it is desired to smooth or remove irregulari
ties from the upper surface of the insole of a
?nished or lasted shoe.
provide a machine which will rapidly, uniformly
and efficiently remove hardened excess cement,
rough edges, etc., from insoles which will be
simple and economical of construction, and which
Referring more particularly to the drawing, 10
there is shown a rigidly supported driving motor
it to one end of which is secured a housing sup
port M, which carries a rigid curved housing 92
which extends toward the operator and thence
downwardly and away from the operator, so that 15
will operate with freedom from wear and me—
chanical di?iculties.
Speci?cally, an object of the invention is to
provide a mechanism which will eifect the re
15 moval, from the insole of a semi-?nished shoe,
of excess hardened cement which has gathered
its end is conveniently positioned for operating
because of seepage or as a result of the pressure
upon‘ a shoe.
brought to bear upon the lasted upper and outer
flexible shaft l3, one end of which is coupled with
the motor shaft Hi, and the other end of which
is coupled in driving relation with a button rasp
sole. during the sole affixing operation.
Another object of the invention is to provide
a machine which will efficiently and readily pre
and has its operating face disposed substantially
pare the upper surface of the insole of a shoe for
horizontally.
The driving motor It] is rigidly supported in
25 to produce a smooth and even upper surface on
the insole.
Other objects of the invention will in part be
obvious and will in part appear hereinafter.
The invention accordingly comprises the fea
tures of construction, combination of elements,
and arrangement of parts, which will be exempli
?ed in the construction hereinafter set forth and
the scope of the invention will be indicated in the
‘claims.
For a fuller understanding of the nature and‘
35
objects of the invention reference should be had
to the following detailed description taken in
connection with the accompanying drawing
showing one embodiment of the invention, in
'40 which:
Fig. 1 is a side elevational view, of a machine
constructed in accordance with the invention
showing a portion being broken away in order
more clearly to illustrate a detail of construc
tionmnd
,.
Fig. 2 is an enlarged detail view with parts
broken away showing the parts of that portion of
the machine which extend into the forepart of
a shoe.
50
20
it which rotates on a substantially vertical axis
reception of a sock lining by removing substan
tially all traces of hardened excess cement, etc.,
5.345 -
The curved housing i2 encases a
~
A machine constructed in accordance with the
principles of this invention may be used with
particular advantage in the manufacture of shoes
having cut-out insoles, the outer soles of which
are flush with the surface of the insoles and are
55 adhesively secured to the lasted upper by py
any convenient manner so as to have the button
rasp it in proper position with respect to the
operator. For example it may be secured upon
a pedestal it by means of bolts ll, the pedestal
in turn being secured to a bench or table l8 by
lag screws 59 or the like.
30
To the motor shaft it a sleeve coupling 20
is connected by means of a dowel pin 2!, or other
suitable fastening means, the other end of the
coupling being ?rmly connected to one end of
the ?exible shaft it. The ?exible shaft it then
extends through the curved housing 52 and its
other end is operatively connected to the button
rasp it as shown, for example, in Fig. 2.
In Fig. 2, it will be observed that the outer end
of the ?exible shaft i3 is ?rmly connected to a 40
keyed coupling ‘2? which is keyed into a non
flexible extensor shaft 28 carried in a thrust
bearing 32 which is held in the outer end of the
curved housing it by means of set screws 33.
The extensor shaft 28 is provided with an en 45
larged portion 29 integral therewith which is re~
cessed and slotted to receive a reduced extension
353 and its associated key 3! of the keyed coupling
2'! whereby the flexible shaft i3 transmits its
rotary motion to the non-flexible extensor shaft 50
28. Attached to the thrust-bearing 32 by means
of set screws 35 is an angular housing all which
encloses the bevel gears or equivalent mecha
nisms by which the button rasp it may be driven
with its axis disposed substantially vertically and 55
2
2,063,484
its operating face disposed substantially hori
ing shall be interpreted as illustrative and not in
zontally. In the embodiment shown a bevel gear
36 is secured to the extensor shaft 28 in any suit
able manner, for example by means of a pin 38
and is in turn meshed with a second. bevel gear
31 which is horizontally mounted in the lower
end of said angular housing which forms a bear
a limiting sense.
ing therefor.
Screwed into the horizontally
mounted bevel gear 31 is the aforementioned but
10 ton rasp l5 having its horizontal face provided
with rasp teeth 39. The bevel gear 3? is held in
position by an end plate 25 secured to the hous
ing 34 by means of set screws 26. The end plate
25 is provided with a stepped opening 44 forming
15 a vertical thrust-bearing with the shank 45 of
the button rasp l5. When it is desired to un
screw the rasp from its operative position in or
der to sharpen or replace it, the operator merely
grasps the rasp and turns a hand knob 40 secured
at the other end of the motor shaft I4 on the
motor H). In order to take up any slack, which
might occur in the ?exible shaft on account of
use, or from other causes, and thereby forestall
chattering, or in order to eifect a desired adjust
ment, the housing support H is split a substan
tial distance beyond two clamping members 22
which have openings 23 adapted to receive two
machine bolts for holding the housing in its ad
justed position. The keyed connection between
30 the coupling 21 and the extensor shaft 28 is suf
?ciently tight to permit this operation but never
theless permits separation of the parts when it
is desired to dismantle the machine or replace
the parts.
35
Preferably the shaft housing is underslung to
Ward the rear of the standard and driving motor
and spaced a sufficient distance therefrom con
veniently to allow a comfortable manipulation of
a shoe during the rasping operation so that the
40 operator can see the work as it progresses, as il
lustrated in dotted lines in Fig. 1.
In order further to aid the operator a small
electric lamp 4| and re?ector 42 is mounted by a
simple universal clamp 43 to the shaft housing
45 l2, thus allowing the operator to adjust the posi
tion of the lamp and to provide a constant source
Having described my invention, what I claim
as new and desire to secure by Letters Patent, is:
1. A machine for the removal of excess hard
ened cement formed in a cement constructed
shoe during the sole affixing operation in the
marginal forepart area at the junction where the
upper surface of, a randed insole aligns with the
upper surface of a landed portion of a comple 10
mentary outsole comprising, in combination, a
driving means having a rigid support, a rear
wardly curved shaft housing extending toward
said support and in spaced relation thereto with
the upper end of said housing associated with 15
said driving means, a rotatable ?exible shaft
mounted in said housing and connected with said
driving means, a horizontally disposed rotary ce
ment removing rasp having a downwardly sus
pended horizontally disposed rasping face ro 20
tated by said shaft and associated with the lower
end of said housing and projecting therebelow
whereby said rasp is spaced sufficiently distant
from said support and said housing to permit easy
application and removal of a shoe and to allow 25
said rasp horizontally to operate upon the fore
part of an insole of a horizontally positioned shoe
so that said forepart of said insole as well as said
rasp are at all times presented to the observa
tion of an operator to disclose the progress and 30
permit control of the cement removing operation.
2. A machine for the removal of excess hard
ened cement formed in a cement constructed
shoe during the sole ai?xing operation in the
marginal forepart area at the juncture where the
upper surface of a randed insole aligns with the
upper surface of a landed portion of a comple
mentary outsole comprising, in combination: a
driving means having a rigid support; a curved
shaft housing the upper end of which extends
horizontally away from said driving means and
toward an operator, the midportion thereof ex
tending substantially vertically downwardly, and
the lower portion extending obliquely away from
said operator; a ?exible shaft within said hous
of illumination to the inside of the shoe. It is
convenient and desirable that the lamp and re
?ector be mounted in cooperative relation with
50 respect to the curved housing in such manner
that the projected light rays also make an acute
forward and rearward movement of said shaft
housing thereby taking up any slack or easing
any tension upon said shaft; a horizontally dis
posed rotary cement removing rasp having a
angle with the re?ecting surface operated on by
rasping face rotated by said shaft and associated
with the lower end of said housing and project
the rasp so that the entire forepart of the insole
is illuminated and the re?ected light issues in a
55 manner convenient for observation by the opera
tor as the shoe is manipulated against the rasp.
It will thus be seen that by means of the pres
ent invention there has been provided a device
which will rapidly and ef?ciently accomplish the
60 objects set forth and since certain changes may
be made in the above construction and different
embodiments of the invention could be made
without departing from the scope thereof, it is
intended that all matter contained in the above
65 description or shown in the accompanying draw
45
ing; a split shaft tensioning support to permit
downwardly suspended horizontally disposed
ing and therebelow so that said rasp is spaced
sufficiently distant from said support and said 55
housing to permit ‘easy application and removal
of a shoe by said operator and to allow said rasp
horizontally to operate upon the forepart of an
insole of a horizontally positioned shoe whereby
said forepart of said insole as well as said rasp 60
are at all times presented to the observation of
an operator to disclose the progress and permit
control of the cement removing operation.
WILLIAM C. CARD, JR.
65
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