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Патент USA US2114197

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Àpriì 12, 1938.
E_ A_ wlLLEY
SHOE PRESS
Filed April 5, 1937
(ì
2,114,197
2 Sheets-ShawI l
April 12, w38.
E. A. WILLEY
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2,1Í4yì97
SHOE PRESS
Filed April 3, 1937
2 Sheets-Sheet 2
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2,114,197
Patented Apr. 12, 1938
STATES PATENT OFFiCE
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` 2,114,197
SHoE PRESS
Edward A. Willey, Malden, Mass., assigner to
Converse Rubber Company, Malden, Mass., a
corporation of Massachusetts
Application April 3, 1937, Serial No. 134,813
4 Claims.
This invention relates to a fluid pressure ap
paratus for pressing 4strips of sheet material
(Cl. 12-1)
3 and 4; The bottom wall I0 is provided with
threaded apertures which receive screw-threaded
stems I4 and I5, and these stems carry an elon
about the lasted upper of a shoe.
In the manufacture of rubber soled shoes it is gate plate Iß which provides a support for hold
ing the lasted Shoe in spaced relation to the bot
5 customary to apply a foxing strip or the like piece . tom and side walls of the compartment, the plate
of sheet material to the lower edge of the lasted
upper before applying the outsole. As the foxing
strip extends completely around the lower edge
of the upper with its edge inturned so as to over
lie the bottom of the shoe, great care must be
taken in order to obtain a satisfactory bond
between the foxing strip and the irregular sur
faces of the shoe. In accordance with the usual
practice, the foxing strip is caused to adhere
15 either by means of a manually operated hand
roller, or a machine actuated roller. The use of
a manually operated roller is time consuming
and costly and although the use of a machine
actuated roller reduces the time element some
20 what, such machines are expensive and are not
always satisfactory. In either case the pressure
applied to the foxing strip at diñerent points
about the edge of the shoe is apt to be ununiform,
and furthermore the pressure can not always
25 be maintained for a length of time sufficient to
permit the cementitîous material to set or pro
duce a satisfactory bond.
i
The principal object of the invention is to pro
vide an improved press which is of simple oon
30 struction, reliable and efficient in operation and
which overcomes the aforementioned objection
able features of the apparatus heretofore used.
Further objects will be apparent from a con
sideration of the following description and ac
35 companying drawings, wherein:
Fig. ll is an elevation of a press constructed in
accordance with the present invention;
Fig. 2 is an enlarged top plan view of one of
the pressing compartments;
I6 being substantially narrower at the width of
the bottom of the lasted shoe so as to leave its
marginal portions exposed. The top of the com
partment is provided with a cover plate 2U hav
ing a shape conforming to the bottom wall Ill
and an opening 2l which provides access to the
interior of the compartment, the opening 2l pref
erably being shaped to permit a lasted shoe to
be easily inserted and removed from the com
partment.
The upper edges of the side walls extend out
wardly to provide flanges 24 .and 25 having mar
ginal beads or ribs 26 and 21 which cooperate
with corresponding beads or ribs 3Il and 3l 20
formed on the under surface of the cover and
the top surface of the bottom wall, respectively.
The lower flange 25 and the marginal portion of
the bottom wall .are provided with registering
openings which receive bolts or other fastening 25
elements 34 which hold the side and bottom wall
members together. The upper flange 24 and the
marginal portion of the cover plate 20 are also
provided with registering openings which receive
boltsv 35 provided with wing nuts 36, or the like 30v
fastening elements for removably holding the
cover in position.
An elastic diaphragm 4I) extends about the side
wall with its upper and lower edges securely
clamped between the beads 25, 3D and 21, SI, the
width of the diaphragm being such as to bulge
inwardly to provide an expansible chamber 4I
‘ whose inner wall surrounds the supporting plate
I6, as shown in Figs. 3 and 4. The wall I I is
provided with an opening 44 which receives the 40
end of a pressure conduit 45 through which a
and
fluid pressure medium, such as compressed air,
Fig. 4 is a section on the line 4-4 of Fig. 2.
is
introduced into and expelled from the cham
The embodiment chosen for the purpose of il- `
lustration comprises a bench, table or the like ber 4I.
'I‘he parts are so constructed and arranged 45
45 supporting structure, here shown as having up
right frame members I and 2, and upper and that when a fluid pressure-medium is introduced
lower horizontal frames 3 and 4, the upper frame into the chamber 4I, it causes the diaphragm to
3 supporting a pair of spaced presses, designated expand so that its inner wall snugly embraces
by the numerals 6 and 6a, and the lower frame the lower edge of the lasted shoe, as shown by 50
the dot and dash lines of Fig. 3, thus subjecting
50 supporting a control valve designated by the nu
the foxing strip F to- a substantially uniform pres
meral 8.
Each of the presses comprises a compartment sure.
Referring to Fig. 1, the conduits 45 of the
having a bottom wall I0 and a side Wall I I whose
shape resembles approximately the contour of the presses 6 and (ìa are connected by lines 46 and 55
55 lower part of a lasted shoe S, as shown in Figs. 46“, respectively, to the control valve 8, and lines
Fig. 3 is a section on the line 3-3 of Fig. 2;
2
2,114,197
41 and 4'!a connect the conduits ¿i5 to pressure
gauges 48 and 48a, respectively. The control
valve 3 is connected by a line 5û to a suitable
source of ñuid pressure, such as an air com
pressor (not shown), the pressure applied to the
chambers 4l being indicated by the pressure
gauges 48 and d8a. The valve member of the
Valve 8 is such that it may be manipulated by a
pedal 52 so as to assume one of three positions:
10 a neutral position, as shown in Fig. l, wherein
the lines 46, 46a and Eil are all disconnected from
each other; a position wherein the line 46 is
connected to the line 56 and the line 46a is con
nected to an exhaust line; and a third position
15 wherein the line 46a is connected to the line 50
and the line ¿i6 is connected to the exhaust line.
In using the apparatus a lasted shoe S having
a foxing strip applied about its lower edge, is
inserted in the press i5 and when properly posi
tioned on the plate l5, the pedal 52 is depressed
to connect the lines MS and 5B, whereupon the
compressed air or other fluid pressure is admitted
to the corresponding edges of said side wall by
said plate and bottom Wall and means for intro
ducing a fluid pressure medium into said chamber
to cause it to expand and subject the edge por
tions of the lower part of the lasted shoe to a
substantially uniform pressure’.
2. Apparatus of the class described comprising
a compartment having a side wall conforming
approximately to the contour of the lower part
of a lasted shoe, a plate secured to the upper edge
of said side wall and having an opening through
which the lasted shoe may be inserted in and
removed from said compartment, and a bottom
wall having adjustable means for supporting the
lasted shoe in spaced relation to the bottom and 15
side walls, ilexible means extending about said
side wall and defining an expansible chamber,
the upper and lower edges of said elastic member
being clamped to the corresponding edges of said
side wall by said plate and bottom wall and means
for introducing a iiuid pressure medium into said
chamber to cause it to expand and subject the
to the chamber @5, causing the diaphragm M to
expand and subject the foxing strip to a substan
lower part ofthe edge portions of the lasted shoe
tially uniform pressure which is maintained for a
period suiîicient to insure proper adhesion. In
3. Apparatus of the class described comprising
a supporting structure, a pair of compartments
mounted on said supporting structure, each of said
compartments comprising a bottom wall, a side
the meantime another lasted shoe with its fox
ing strip applied, as above described, is inserted in
the press 6a and when properly positioned, the
30 pedal 52 may be tipped in the opposite direction
to introduce compressed air into the chamber lli
of the press 6a and simultaneously exhaust the
air from the chamber ¿ll of the press £3. During
the period in which the lasted shoe in the press
35 6a is being subjected to pressure, the shoe in the
press E may be removed and another inserted, and
the operation continued.
It will be noted that during the pressing oper
ation the diaphragm @El snugly embraces the pe
40 ripheral portions of the lasted shoe and being iiex
ible the wall ¿iii accommodates itself to the ir
regularities of the contour of the edge of the
shoe, thus folding the lower edge of the foxing
to a predetermined pressure.
wall conforming approximately to the contour of
the lower part of a lasted shoe, a plate secured .
to the upper edge of said side wall and having an
opening through which the lasted shoe may be
inserted in and removed from said compartment,
means for supporting a lasted shoe in spaced re
lation to its side and bottom walls and an elastic -
member extending about the interior of the com
partment between the supporting means and its
side wall, said elastic member deñning an ex
pansible chamber having an inner wall portion
capable of being expanded so that it engages the 40
edge portions of the lasted shoe and subjects them
to a substantially uniform pressure, and means
for successively introducing into and exhausting
strip inwardly and subjecting the entire foxing
from the expansible chambers of the respective
strip to a substantially uniform pressure which
may be maintained for any desired period of time.
compartments a fluid pressure medium.
While I have shown and described one desir
able embodiment of the invention, it is to be un
derstood that this disclosure is for the purpose of
50 illustration and that various changes in shape,
proportion and arrangement of parts, as well as
the substitution of equivalent elements for those
herein shown and described, may be made with
out departing from the spirit and scope of the
55 invention as set forth in the appended claims.
I claim:
1. Apparatus of the class described comprising
a compartment having a side wall conforming
approximately to the contour of the lower part oi
60 a lasted shoe, a plate secured to the upper edge
of said side wall and having an opening through
which the lasted shoe may be inserted in and re
moved from said compartment and a bottom Wall
having means for supporting the lasted shoe in
spaced relation to the bottom and side walls,
elastic means extending about said side wall and
defining an expansible chamber, the upper and
lower edges of said elastic member being clamped
4. Apparatus of the class described comprising
a supporting structure, a pair of compartments
mounted on said supporting structure, each oi
45
said compartments having a side wall conform
ing approximately to the contour of a lasted shoe, 50
a bottom wall having means for supporting the
lasted shoe in spaced relation to the side and
bottom walls, a plate secured to the upper edge
of said side wall and having an opening through
which the lasted shoe may be inserted in and
removed from said compartment and elastic
means extending about the side wall deñning an
expansible chamber, the upper and lower edges
of said elastic member being clamped to the cor
responding edges of said side wall by said plate 60
and bottom wall and means for successively in~
troducing into and exhausting from the expansion
chambers of the respective compartments a fluid
pressure medium to cause the respective chambers
to expand and subject the edge portions of a lasted
shoe disposed in said compartment to a substan
tially uniform pressure.
EDWARD A. WILLEY.
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