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Патент USA US2098773

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Nov. 9, 1937.
'
w. c. CARD. an
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METHOD OF PREISSING SHOES
2,098,773‘
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Original Filed March .11, 1931
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INVENTOR
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‘Nov. 9, 193.7‘?
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2,098,773
METHOD OF PRESSING SHOES
original Filéd March \11, 1951
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INVENTOR
2,098,773
Patented Nov. 9, 1937
UNITED STATES
PATENT OFFICE J
2,098,773
METHOD OF PRESSING SHOES
William 0.‘ Card, Jr., Winthrop, Mass, assignor
to Compo Shoe Machinery Corporation, New
‘York, N. Y., a corporation of Delaware
Original application March 11, 1931, Serial No.
522,738. Divided and this application June 19,
1935, Serial No. 27,288
3 Claims. 7 (Cl. 12-142)
This invention relates to the manufacture of
cemented shoes and more particularly to that
step in the manufacture of such shoes which in
volves a?ixing the outer sole to the lasted upper‘
ill by means of an adhesive cement.
A general object of the invention is to provide
an improved method of cement affixing an out
metal such as aluminum or the like.
The‘base
which is shaped to conform in longitudinal con- '
desired, be provided with a casing l3 of leather
' or the like.
sole to a lasted upper by means of an in?atable
Extending medially across the base portion
from front to rear is a bow member l4 adapted
More particularly, objects of the invention are
to provide a method of pressing an outer sole to
an upper which involves a considerable saving in
the amount of time and effort expended by the
operator, with consequent advantages and econo
mies in production of the shoes.
Other objectsrof the invention will in part be
obvious and will, in part appear hereinafter.
i
tour substantially to a shoe last, and in which is
disposed in in?atable rubber pad [2 which may, if
pressure applying pad operating in conjunction
10 with an associated shoe supporting means.
‘
It! is provided with a cavity II, the bottom of
to support an instep pad l5 andv a bearing mem
ber l6. > The instep pad 15 may comprise a mush
room shaped'rubber pad having its stem l1 car
ried within a recess [8 in a lug l9 which projects
downwardly from the bow member [4.
The bearing member [6 may take the form of a
15
flat plate adapted to bear against the upper.
heel portion ‘of the last and supported from the
bow member’ M by a screw nipple 2D. This con
struction permits the bearing member [6 to en
eral steps and the relation of one or more of such . gage with lasts of varying lengths and makes it
’ The invention accordingly comprises the sev
2
steps with respect to each of the others thereof,
which will be exempli?ed in the method herein
after disclosed, and the scope of the application
of which will be indicated in the claims.
2
objects of the invention reference should be had
to the following detailed description taken in
connection with the accompanying drawings, in
For a fuller understanding of the nature and.
which:
3O
35
40
7
Fig. 1 is a top plan View of one form of appa
ratus suited to carry out the invention;
Fig. 2 is a side elevation thereof;
Fig. 3 is a longitudinal section of the same ap
paratus with the position of a pressed shoe indi
cated in dotted lines;
_
Fig. 4 is a section on the line 4-4 of Fig. 3;
and
Fig. 5 is a front elevation showing the valve
mechanism.
This case is a division of applicant’s copending
application Serial No. 522,738, ?led March 11,
1931 which matured into Letters Patent No.
2,059,847 granted Nov. 3, 1936.
4
The method of the present invention is adapted
to expedite sole pressing operations such as sole
a?ixing, laying or leveling, and may be carried
out by means of any suitable apparatus. This
method can readily be understood when described
in conjunction with the herein illustrated form
of apparatus which is especially suited to its per
5O
formance.
Referring more particularly to the drawings, in
the form of apparatus shown there is provided
unnecessary accurately to position the lasted shoe
beneath the bearing member and the instep pad.
The casing I3 has a bottom portion 22 adapted
to lie along and conform to the bottom portion of
the cavity II and a top portion 23, adaptedv to
bear up against the underside of the shoe. The
portions 22 and 23 are joined by a vertical por
tion 24 of a height substantially level with the
sole to permit the top portion 23 to bear up above
the level of thesole at its periphery so as to ex
ert pressure against the sole even at its extreme
edge. To effect this result,‘ it is desirable that‘
the top portion 23 be materially concaved, even
when shoes of small vertical height are being
constructed. This makes it possible to utilize the
same clamp for shoes of di?erent heights without
the necessity of having the parts mechanically
adjustable since the form of casing employed
makes it possible to obtain the effect of such ad
justment by the ‘?exibility of the pad itself. The. 40
in?atable pad I2 is of such shape and contouras
to conform to the interior of the casing.
This vertical portion 24 preferably supports the
top portion 23 which constitutes the bearing sur
face to engage the underside of the sole'at'a 45
slightly higher level at the ‘instep portion than at
the other portions of the shoe, and the bearing
surface 23 is also preferably somewhat wider at
its center than at the ends in order that the
proper pressure may be assured at all points.
A conduit 28 extending through the bottom of
the pad 12 and of the base It) is held in place by
a nut 29 to make an air tight joint. This con-,
a base member [0 which is generally rectangular , duit carries at its outer end a valve 30. Such
valve may be of any suitable or known type
55 in shape and may be conveniently made of light '
2
2,098,773
adapted to permit in?ation and de?ation of the
pad [2. One desirable form of valve for effecting
this is shown for example in my Patent No.
2,009,575, granted July 30, 1935. .
‘
The elongated shape of the bearing member I6
allows varying sizes of shoes tobe treated in a
press constructed as above described, since omis
sion of a pin to enter the usual last pin hole in
the cone of the last on which the upper is lasted
10
eliminates the necessity of adjusting the instep
pad I5 and the heel bearing member 16 along
especial advantage in the method is obtained
when the vertical expansibility of the pad is made
great enough to compensate by inflation alone for
variations in employed last sizes, even when these
range over a considerable scale. ' It will also be
seen that the method is useful in various sole
pressing operations such as a?ixing, laying and
leveling.
'
Since certain changes may be made in carrying
out the above method without departing from the 10V
scope of the invention, it is intended that all
the bow member I4, and construction of the bow 7 matter contained in the above description shall
member 14 in a rigid or ?xed form eliminates the
pivoted clamping and ball members heretofore
15 usually used, whereby the time and energy of
the operator is saved.
‘
be interpreted vas illustrative and not in a limit
ing sense.
It is also to be understood that the following 15
claims are intended to cover all of the generic
The press herein described is desirably cone
and .speci?c features of the invention herein de
nected to a continuous conveyor by means of lugs scribed, and all statements of the scope of the
45 so that the press may be carried conveniently invention which as a matter of language might
20 to and from a shoe receiving station, and it will
be said to fall therebetween. '
be understood that mechanism may beemployed,
‘ Having described my invention, what‘I claim
either automatic or manual, for connecting with as new and desire to secure by Letters Patent, is:
the valve 3% to de?ate the pad in order to remove
l. A method of a?ixing soles to shoes which
theshoe and to admit air to the pad when a new comprises, locating ‘an outer sole on a lasted
25 shoe has been inserted in .place.
With the present form of invention, different
heights of shoe may be taken care of without the
necessity of adjusting the instep pad or the heel
pad because ‘the top surface of the casing is such
30 that even when the enclosed pad is well in?ated,
it will nevertheless extend upwardly around the
shoe at the sides of the sole to maintain the ad
justment of the sole ?rmly in contact with the
lasted upper to insure the complete adhesion as
35 the cement dries. With this form of the inven
tion, therefore, it is necessary only to insert the
lasted shoe in place, and it will be ?rmly engaged
as soon as air is admitted to the pad.
In operating the described apparatus, the oper
40 ator loads the lasted upper and the outsole, with
adhesive therebetween, between an immovable
support and an in?atable pad, and the support
is kept immovable throughout successive loading
operations, the pad alone "-being in?ated through
45 a su?icient vertical displacement to enable it to
press the sole against the lasted upper. The pad
is so constructed that it is even able to compen
sate by in?ation alone for substantial ‘variations
in employed last sizes.
50
From the above description it will be seen that
the present method avoids the time consuming
adjustments of the toe and heel post supports
which heretofore have always been relatively
movable with respect to the pad support. It will
be understood that this method can be carried
out on any suitable form of apparatus in which
the toe and heel supports are capable of being
60
kept ?xed with respect to the pad support during
successive loading operations and in which the
pad is capable of pressing the types of shoes to
be worked on against such supporting posts. An
upper with adhesive therebetween, loading-the 1 L
lasted shoe between an immovable support. and
an in?atable pad, keeping said support-immov
able throughout successive ‘loading operations,
and in?ating said pad through a vertical dis-l
placement su?icient to enable it to press the sole
against the lasted upper and to compensate by
in?ation alone ‘for substantial variations in em
ployed ‘last sizes.
2. A method of a?ixing soles to shoes which
comprises, locating an vouterv sole on a ilas‘ted 35
upper with adhesive therebetweenpprovidinga
?uid pressure pad and a pad support, loading a
lasted shoe ‘between said pad and. a shoe vsup
port, keeping said shoe support immovable‘with
respect to said pad support throughout successive ,.
loading operations, and expanding the upper
surface of said pad through a vertical displace
ment su?icient to enable it to press the sole
against the lasted upper and to compensate by
pad expansion alone for substantial variations in
employed last sizes.
,
e’
>
3. A method of pressing soles on the bottoms
of lasted shoes which comprises, providing a?uid
pressure pad and a pad support, loading va shoe
between said pad and a shoe support with its a.
sole resting on the pad, keeping said'shoesup
port immovable with respect‘ to said pad sup
port throughout successive ‘loading operations, ,
and expanding the upper surface of said pad
through a vertical displacement suf?cient to
clamp said shoe under pressure between the pad
and. shoe support and to compensate by pad ex
pansion alone for substantial variations in em_
ployed last sizes.
WILLIAM C. CARD, JR.
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