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0a. 22, 1946.
'M, SPACK
T
2,409,721
DEVICE FOR ‘CONFORMING h SHOE UPPER TO THE SHAPE OF A LAST v
Filed March 29, 1945
v
-
2 Sheets-Sheet 1
4mm 251.5‘.
'
Oct. 22, 1946.
-
M. sPAcK
_
-
2,409,721
DEVICE FOR'CONFORMING A SHOE UPPER TO THE SHAPE OF A LAST
Filed’ March 29,. 1945-
2 Sheets-Sheet 2
J?lftliib?”
Maurice Spank
I
Patented Oct. 22, 1946
v2,409,721
J UNITED STATES PATENT‘ OFFICE
DEVICE FOR CONFORMING A SHOE UPPER
TO THE SHAPE OF A LAST
Maurice Spack, Newton Center, Mass.
Application March 29, 1945, Serial No. 585,427
3 Claims.
(Cl. 12-—107)
2
This invention relates to the, manufacture of
braces the toe of the last so that the strainon
the lasting strap is one best calculated to hold
the edge of the upper in close conformity to the
last not only around the fore part but also at the
shoes and particularly to a device for treating the
upper of the shoe to conform it to the shape of
the last.
In the ordinary methods used in making shoes,
shank.
the parts forming the upper are sewed together,
and then the upper is applied to a last and is
acted upon by a lasting machine which draws the
edge of the upper around the sides and over the
bottom of the last, thus causing the upper to con 10
form exactly to the shape of the last, The last
ing machines used for this purpose are more or
less complicated and expensive affairs.
It is one of the objects of my present invention
to provide a simple device which can be used in
the manufacture of many types of shoes in place
of a lasting machine for shaping and conforming
After the upper has thus been treated in ac- .
cordance‘with my invention, then the lasted up
per may be subjected to any of the usual opera
tions by which a sole is attached to the upper and
the shoe is ?nished.
In order to give an understanding of my in
vention, I have illustrated in the drawings a se
lected embodiment thereof, which will now be
described, after which the novel features will b
pointed out in the appended claims.
>
‘In the drawings:
Fig. l is a perspective view of a shoe upper
the upper to the last.
ready to be lasted.
.
My invention contemplates the use of a last
Fig. 2 is a perspective view showing my im
of that known type in which the plane of the bot 20 proved lasting strap.
ton face of the heel portion is offset from the
Fig. 3 is a side view of the upper after it has
plane of the bottom face at the toe portion, and
been applied to the last but before the lasting
operation has been accomplished.
Fig. 4 is a perspective view of the unlasted up‘elastic, together with means for anchoring the 25 per applied to the last and ready for the lasting
lasting strap’ element to the bottom of the last
operation.
it includes a lasting strap element in the form of
a closed loop, some portion at least of which is
at the heel portion thereof.
In using my device the shoe upper is applied
to the last in the usual way and the lasting strap
is arranged so that it extends from the bottom 30 is
Fig. 5 is a view showing the lasted shoe.
Fig. 6 is a top plan view of’ Fig. 5.
Inthe drawings l indicates a shoe upper which
ready for the lasting operation.
In carrying
of the heel around over the top face of the .toe ‘Y ‘ out‘ the lasting operation, the shoe upper is ap
portion of the last and back to the bottom of the
‘heel. With‘ the strap thus associated with the
last, the portion of the strap which‘overlies the
plied to a last 2 as usual which may be supported
in inverted position upon a suitable support or
jack 3. The last 2 herein shown is of that type.
fore part of the last and upper is manipulated to 35 in which‘the plane of the bottom face of the last
bring it into a position in which it embraces the
at the heel portion is offset from the plane of the
toe portion of the last, said lasting strap having
a wiping contact with the upper during such ma
nipulation. This operation will cause the upper
bottom face at the- toe portion.
When the upper is first applied to the last, the
toe portion thereof will be more or less flat and
to conform exactly to the last, and when the 40 will not conform at all to the exact shape of the
lasting strap has, been brought into this posi
last.‘ In order to shape the upper and make it
tionLthe portion of the strap embracing the toe
conform to the shape of the last, I employ a U
and sides of the fore part of the last will extend
shaped strap element 4 which is made of ?exible
substantially parallel to the bottom face of the
material and the ends o?which are resiliently an
last at the toe portion, while the rear end of the 45 chored to the bottom of the heel portion of the
lasting strap‘ element passes from the side of the
last. = This strap 4 can be made of leather, rub
last on to the bottom of the last at the heel por
ber or even metal provided it. is ‘su?iciently ‘?ex
tion' and thereby _causes the upper at the shank I ible so that it will readily conform to the con-‘
of the last to tightly hug the latter. Further
tour of the last. .As stated above the ends 5 of
more, because'of the offset relation between the 50 the strap are anchored to the bottom of the heel
bottom face ‘of. the last and the heel portion» and
portion. ofzthe last by suitable resilient means.
the bottom face of the last at the fore part por
In the construction-shown, the last 2 has a head
tion, the point where the lasting strap element
is anchored to the bottom of the last is in the
plane of the portion of said, element which "em
ed stud 6 projecting from its bottom face at the
heel portion thereof,; and said ends 5 of the strap.
.55. are connectedby a springconnection ‘_|. Invas
2,409,721
4
3
customary to load the fore part of the upper with
some stiffening ingredient which, when dry, will
add stiffness to the toe of the upper. If my in
and upper will be inserted through the loop of
vention is used in the lasting of shoe uppers
the strap and the spring connection ‘I is then
which have thus been loaded with a stiffening
placed around the headed anchoring stud 6 as
ingredient, then the upper will be placed in an
shown in Figs. 3, 4, and 5. The strap element 4
oven or drying apparatus while the upper is still
together with the resilient or elastic connection
held in conforming contact with the last by the
1 forms a closed loop element, some portion at
lasting strap 4 for the purpose of hardening the
least of which is elastic or stretchable.
The strap 4 is of such length that when it is 10 stiffening ingredient. After the shoe upper is
dry, it will hold the shape given to it by the last
assembled with the last the bight end 8 of the
after the lasting strap has been removed and the
loop will be located a short distance back of the
upper has been taken oii from the last.
toe of the last as also best seen in Figs. 3 and 4.
After the upper has been lasted and caused to
The loop of the strap is then grasped and
" conform to the last as above described, then the
brought against the upper and is pulled forward
shoe may be ?nished by any of the different proc
ly while still in contact with the upper so as to
esses which are usually employed in ?nishing dif
carry the bight end 8 of the strap around the
ferent types of shoes. If the shoe is to be of the
toe of the last as indicated in Figs. 5 and 6. Dur
so-called “California Process” type, then a strip
ing this operation the lasting strap element com
prising the strap member 4 and the connection 20 would be sewed to the edge of the shaped upper
and the edge of such strip will be folded over
‘I has a pivoting movement about the stud 6 and
and attached to the “platform” with which such
the frictional engagement of the strap with the
shoes are provided. If the invention is to be used
upper will cause the latter to conform exactly
in connection with the making of a cemented
to the shape of the last, and when the strap has
been worked into its ?nal operative position 25 shoe, then an insole would be applied to the Mt
tom of the last and the edge of the upper would
shown in Figs. 5 and 6 the toe portion of the
be folded over and cemented to the insole. In
upper will be held tightly clamped against the
such case the projecting edge if! of the upper
last adjacent the bottom thereof.
would be somewhat longer than that illustrated
When the lasting strap element is in its op
erative position shown in Fig. 5, the front por 30 in the drawings. The invention may also be em
ployed in connection with the manufacture of
tion thereof embraces the fore part of the last
welt shoes. In any case after the upper has been
while the rear portion, that is the spring con
made to conform to the shape of the last as above
nection 1, lies on the bottom face of the heel
described, then the shoe may be ?nished by any
portion of the last. Because of the offset rela
tion between the bottom face of the heel portion 35 of the di?erent processes which are usually em
ployed in ?nishing different types of shoes.
of the last and the bottom face of the fore part
The strap 4 with the resilient member 1 con
of the last, the lasting strap element will be sit
necting the ends thereof may be considered as a
uated entirely in the same plane and it will ex
closed loop structure, some portion at least of
tend around the toe of the last along the sides
of the fore part of the last parallel to the bottom 40 which is made resilient so that when the closed
loop is anchored to the last and is then acted on
face of the last, and then will pass from the sides
to conform the upper to the last, the resilient
of the last on to the bottom face of the heel of
portion of the loop (which in the case of the
the last at the shank portion thereof. The por
present embodiment is the spring 1) will yield
tion of the lasting strap element which passes
and thus provide the necessary pressure by which
from the side of the fore part of the last on to
the body of the strap 4 is held tightly in embrac
the bottom of the heel of the last at the shank
ing contact with the toe portion of the last.
portion thereof will hold the upper snugly against
While I have illustrated a lasting strap in
the sides of the last at said shank portion.
which the body is of leather and the resilient por
Moreover 'with the construction shown, the
point at which the connection ‘I is anchored to 50 tion 1 is in the form of a spring, yet the inven
tion is not limited to this construction as the re
the bottom of the last is in the plane of the strap
silient portion of the closed loop may be made in
when in its operative position and hence there is
some other way than by means of a spring or it
no tendency for the strap 4 to become displaced
by the strain to which it is subjected.
may be possible to use a closed loop made of rub
In order to assist the operator in getting the
ber which affords within itself the required re
upper properly centered on the last before it is
siliency to enable the necessary operations to be
acted upon by the upper-conforming strap, I pro
carried out.
sembling the strap element with the last having
the upper thereon, the toe portion of the last
pose to make the bottom of the last with two or
more positioning holes 9 and to provide the up
I claim:
1. A device for shaping shoe uppers comprising
per adjacent its edge with corresponding posi 60 a last having its bottom face at the heel portion
tioning holes Ill. When the upper has been
oifset from the bottom face at the toe portion, a
placed on the last as shown in Fig. 4, then the
strap-like element of flexible material having the
operator may enter a nail or pin I I through each
form of an elongated closed loop adapted to ,em
hole 50 of the upper and into the corresponding
brace the toe portion of the last and hold the up
positioning hole 9 of the last. By this means the
per conformed to the last, some portion at least
upper will be properly centered laterally so that
of said strap-like element being elastic, and
when the strap 4 has been worked into its oper
means to anchor said strap-like element to the
ative position, the edge 12 of the upper will pro
bottom of the heel portion of the last, whereby
ject evenly beyond the bottom of the last
the side portions of the closed loop strap-like
throughout its length.
70 element extend from the bottom of the heel por
The lasting strap 4 may be maintained in its
tion of the last to the sides of the fore part por
tion and thus hold the upper snugly against the '_
operative position shown in Figs. 5 and 6 for a
sides of the last at the shank thereof.
su?icient length of time to insure that the up
2. A device for shaping shoe uppers to lasts "
per 'will become permanently shaped to the last.
In-the manufacture of shoes, it is sometimes 75 comprising a last having its bottom face at the
2,409,721
heel portion ‘offset from the bottom face at the
toe portion, an anchoring stud extending from
the bottom of the last at the heel portion, a strap
of ?exible material extending from one side of
the last at the shank portion around the toe of
the fore part of the last and back to the shank
portion thereof on the other side, and an elastic
member connecting the ends of the strap and an
chored to said stud, whereby after the upper has
tion of the last to the sides of the fore‘ part hold
the upper snugly against the last at the shank
portions thereof.
s
3. A device of the class described comprising a
last, a lasting strap element in the form of a
closed loop adapted to embrace the toe portion of
the last, some portion at least of said lasting strap
element being elastic, and means to anchor said ’
strap to the bottom surface of the heel of the
been conformed to the last by manipulating the 10 last at a point in the plane of the portions of said
strap which embrace the fore part of the last.
strap into a position in which it embraces the toe
portion of the last, the portions of the strap
MAURICE SPACK.
where it passes from the bottom of the heel por
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