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Патент USA US2405942

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Aug. 20, 1946,
‘G. CLAUSING
2,405,942
SLIP LAST
Filed‘ Sept. ‘1, v1944
~
.
INVENTOR
GERGE cmus/xvci
WVM
'
_
ATTORNEYS
2,405,942
Patentecl Aug. 20, 1946
are STATES PATENT orrics
2,405,942
SLIP LAST»
George Glausing, Portsmouth, Ohio, assignor to
Vulcan Corporation, Portsmouth, Ohio, a cor~ ~
poration of Ohio.
Application September 1, 1944,‘ Serial No. 552,238
3 Claims. (Cl. 12_—136)
1
particularly to the type known as “slip” lasts
which are inserted into'the shoe after it has been
sewed up and the upper has been sewed to, the
insole of the shoe.
2
gether in alignment and for limiting the rel
ative movement of the heel and toe parts, the
link being at an obtuse angle to said surface
when the heel part is in its normal extended po
This invention relates to shoe lasts and more
sition.
'
'
According to the present invention, the slid
Expansible and contractible lasts have bee
provided for use in the manufacture of shoes
where the upper is substantially completed be
fore. the last is inserted. However, many. of the
lasts of this type, as exempli?ed by the applicant’s 10
lng surface or surfaces between the heel and, toe
parts of the last may be curved or straight, and
other changes made ‘within the scope of the in
vention. Other objects, features and advantages
of the invention will also appear from the fol
lowing more detailed description thereof, taken
tended position, are not solid and depend on the
in connection with the accompanying drawing,
use of "slides and other mechanism for their op
in which;
eration. The last of the present invention also
Fig. l is a side elevational view of a last con
differs from the usual hinged lasts which are 15
Patents Nos. 2,047,309 and 2,065,655, when in ex
structed in accordance with the present inven~'
tion, with parts broken away to show the link in
“flexed” sothat they are more readily removable
from the ?nished shoe.
‘
'
elevation and the locking means in section._ The
full line drawing shows the last in extended Do
sition while the dotted heel portion shows the
The primary object of the present invention is
to provide a “slip” last which is substantially
solid and full throughout, in its extended posi
last in shortened or contracted position.
Fig. 2 is a View similar to that of Fig. 1, show
ing a modi?ed form of last.
Another object of the invention is to provide
Figs. 3, 4 and 5 are broken side elevational
a “slip” last which may be very. substantially
shortened for insertion and removal from a shoe. 25 views of further modi?ed forms of the improved
slip last of the present invention in which'the full
A further object of the invention is to provide
line drawing shows the last in its extended po
a “slip” last which can be removed from the fin
sition while the dotted lines show the contract
ished shoe‘without‘marring its shape. ‘
ed arrangement.
‘ An’imp‘ortant feature of the present invention
Fig; 6 is a broken view showing a modi?cation
is the provision of a shoe last divided into heel of the last of Fig. 5.
and" toe portions by a saw-cut which is at a sub
The preferred form of the invention is illus
stantial acute angle to the normal axis of the
trated in Fig. 1 of the drawing which shows a
last, or at a substantial acute angle to the tread
shoe last comprising a toe part H3 and a heel part
of the last.‘ The surfaces formed by the saw-cut
l2 connected together by a relatively heavy ?at
provide sliding surfaces for the relative move
metal link l4 anchored to the toe and heel parts
ments of. the toe and heel sections so that the
by pins 16 and I8. The, toe and heel parts It
last may be shortened by sliding the heel and
and-l2 are separated'by a stepped transverse out
toe parts toward each other along the saw-cut
line l9 which extends upwardly and forwardly
under control of a guiding and limiting link
Another important feature of the invention is 40 from the forward portion of the heel seat through
the upper portion of the instep of the lastt This
to provide a slip last which can be materially
tion, and'which is of. simple construction and easy
to'oper‘ate.
cut may be at any suitable angle with respect to . -
shortened for insertion’ into the sewed upper of
a shoe, and which is provided with a simple means i
thetread or axis of thelast. The cut provides
for locking. it in extended lasting position so‘that
oppositely disposed ?at engaging surfaces which
simple design and readily operated for releasing
position, as shown inthe full line view. In con
tracted position the toe and heel parts are moved
relative to each other with the out line surfaces
which
the ?nal. lasting operations ‘can be carried out. 45 match each other exactly and shoulders
engage each other when the last is inextended
The locking means of the pre'sentinvention is of
the last parts;
-
‘
According to the preferred form of the inven
tion, the improved slip last: comprises a‘ toe part
and a heel part slidably movable relative to each
other‘on a forwardly and upwardly extending sur
50
face which is at an angle to the tread‘ or bottom
of the last. The last includes~ a connecting link
for the toe and heel parts-for holdingjthemnto 5,5.
substantially in alignment to the dotted line po
sition which very substantially shortens the last
and permits its insertion into a sewed upper of a
shoe. This shortening also permits its ready re
moval from a lasted shoe without marring its
share
2,405,942
3
4
The link M is a heavy ?at piece of metal which
is mounted in respective vertical slots of the toe
and heel portions of the last, theslots being cut
to the thickness of the link so that the toe and
heel parts of the last are kept in proper align Cl
ment. The pins l6 and 18 are located so that a
line through them extends at7 approximately the
obtuse angle shown with respect to the angle of
the cut [9 between the toe and heel portions of the
last. This angle which is a substantial obtuse‘
angle permits the movement of the link to the
dotted line position and a substantial reduction
line which terminates at or near the top of the
instep of the last. In this form of the invention
a substantially greater amount of the instep of
the last is retained on the toe portion than in
Fig. 1. In operation, the last of Fig. 2 is similar
to that of Fig. l, but when the heel portion is
released and moved forward, it follows the curve
of the out line to the dotted line position as in
dicated. In making a shoe, the toe portion H] is
10' inserted in the sewed upper with the heel portion
,_ l2 in the dotted line position, and then the heel
portion is slid down the slope of the cut 82 into
in the length of the last. The link limits the ex
tension of the last so that the cutsurfaces exactly
match each other and a solid full last is provided 15
for the lasting and forming of the shoe.
The heel part I2 of the last is IOckedwVit'h're-J '
spect to the toe part when the last is inv its ex—'
tended position by means of a locking mechanism
which operates between the surfaces o'fthe cut 20
l9 above the link M. The locking means com
prises a cylindrical member 20 mounted in the
toe part which carries a plunger 22. The cylin
drical member 20 is tightly ?tted'in a hole while
the plunger 22 is forced outward from the cut
surfaces of the toe part by means of a spring, as
shown. The plunger 22 extends substantially into
a cylindrical member 24 inthe heel part to lock
the parts of the last in their normal extended
25
position. The plunger 22 is disposed so as to be
released from the heel part by means of a plunger
253 mounted in the heel part and extendinginto
the cylindrical member 24. The plunger 26 is
keyed to the heel part of the last by means of a
pin set through a recess 28 in the side of the
the heel of. the shoe, the heel portion l2 there
fore follows the arc of the out line 32 into the
bottom of the shoe,'and forces the shoe into the
desired shape.
_ _
>
The modi?ed form of the slip last shown in
Fig. '3 comprises a toe portion 34 which includes
all of the instep portion of the last and a heel
portion 36 attached by a link 14 and anchor pins
i6 and H8. The toe and heel parts of the last in
this instance does not include the entire volume
of the original last, but a certain portion is‘ cutv
away to provide for the relative movement of the.
heel and toe sections. The toe section has atransverse surface 38 extending downward from the;
top of the instep, a. curved surface All, a shoulder.
42, and a lower curved surface 44, all transverse.
to the last. The heel part of the last includes an.
upper transverse surface 46,3, curved surface en...
gaging the surface 40, and acu'rved'surface'en
gaging the surface 44. The heel section also has.
a shoulder surface 48 engaging the shoulder sur-~
face 42 of the toe section when the last is in ex
tended position. The cut out portion in the upper portion of the last leaves a transverse space
plunger 26. The heel portion of the last is re
leased by depressing the plunger 26 and forcing
between the surfaces 38, 49 and 46. _When the:
the plunger 22 into the toe part in so that the cut
surface of the heel part is slidable along the “cut
surface of the toe part to the dotted line posi
by the dotted line position of the heel part, while
tion. _ The pin in'the recess 28 and they shoulder
the curved surfaces of the heel part slide along
last is shifted to contracted position, the. surface
46 is moved up toward the surface 38 as indicated
construction of the plunger 26 prevents'its'entry
the surfaces 40 and 44.
into the cylindrical member 29. ‘ When the heel
part 12 is moved into extended position the
spring-operated plunger 22 snaps the plunger '26 1
to its outward positio .
»
In making a last such as described in connec
tion with Fig. 1 of the drawing, the solid. last
may be turned to the desired shape, froma block
toe part. The round head of the catch 5.01pm
jects into a ferrule 52 mounted in the surface of
the heel part, so that the heel and toe parts of the
last are held in extended position unless su?icient
force is applied to overcome the spring in the snap
catch 50. Instead of having the surfaces 40, 44,
of maple or any other suitablematerial andtoe
and heel ?nished. The holes for‘ the pins I 6 and
18 are then drilled and the last sawed in. two
along the line I9 as indicated, to provide separate
toe and heel positions. The slots for the link are
then cut in the toe and heel portions, preferably
to one side of the center, so that they do not
interfere with the hole for the locking mechanism.
The last is then assembled by anchoring the link
in the slots by means of the‘ anchor pins it} and
|8.' It is then drilled centrally from the upper
portion of the‘ last to make thehole for'receiving
the locking mechanism and that for the metal
liner 38, which is provided for receiving 'a jack
, ~
When the last of Fig. 3 is in extended position,
the shoulder 48 is in engagement with the shoul
der 42 and. the toe and heel parts of the last are
held in this position by means of a round-headed
snap catch 50, mounted in the surface 44'of the
and the corresponding surfaces on the heel part,
curved as shown, they may be straight, as in Fig.
l, and the intervening shoulder. also be present,
or the surfaces may be curved in the reverse di
rection, as in Fig. 2, and-the shoulder included.
60
A further modification ‘of the slip last as shown
in Fig. 4 includes three parts, a toe part 54, a cen
tral part 56, and a heel part 58. vIn the normal
position of the last, these parts ‘fit together to
form a complete last without any cut ‘out, por
tions, as clearly indicated by‘ the full line 1new.
65 The central section has the general shapetof a
keystone, and when it is moved up to the dotted
line position, the heel part moves in towardthe
toe part to very substantially reduce 'the'length
. , of the last,‘ as shown by its dotted line‘position.
The keystone section 56 isanchored to the toe
part by means of a link Bll'and anchor pins 62
pin. The liner Silis then pressed into place and p
the various parts “of the locking‘ mechanism‘are
mounted inthe toe and heel portions.
_
' ~
The modi?ed form of the slip last shownin Fig.
2 includes the same link and lock constructionl‘as
that of the last'shown in Fig.1, andidiffe‘r‘s" only
in the shape of the'cut separating the toe andheel
portions I79 and I2. In Fig. 2, the ‘cut 32' is‘. a
transverse out having astep or shoulderedstop 33
as in Fig. l, which begins at about the same
tion with respect to the heel seat as in Fig__l,.,but
it extends upwardly and forwardly in a curved
and $4. ‘It is also anchored to the heel part'by
a linky-n??sa'ndzanchor pins 68 and T9; ' Whenthe
last_‘off->Fig..:4;is in extended position, thekeyi
a stone
section 56 completely intervenes“ between
2,405,942
5
f6
the toe and heelfparts 54 and 58 and'is provided
tion 10f: the .heel 1 part- T‘ill, downwardly ’ and for
with front and/rear shoulders'which engage cor
'respondingly stop shoulders of the‘toe and heel
saw-rout lineBll is brokento provide a step hav
parts of the'last so‘that the parts are exactly po
sitioned vertically. In this position the pins .65
ing engaging shoulders for the parts ‘[2 and ~74
which determine ‘theposition of the parts of. the
last in its extended position, and which ‘provide
and 68 are below theline between the pins 62 and
'18, so that when the last is in a shoe, the key
stone section will be ?rmly held between the toe
and heel parts of the last. This will be appar
ent from the fact that in order to have the pins
84 and 68 move above the line of the pins ‘52 and
lo, there would have to be some additional sep
aration between the toe and heel parts 54 and
58. The tension of the shoe upper holds the last
parts in normal position.
The links 63 and 66 are preferably relatively
heav'y ?at pieces of metal similar to links l4, and
wardlytoand through the instep of the last. The
means .by which the toe and heel parts are caused
to match each other exactly. The locking means
may :be the same as in. Fig. 5.
'
Instead of having a single curved saw-cut line
80, as in Fig. 6, the improved last may include two
curved shouldered cuts, extending in substan
tially opposite direction-s, somewhat like the saw
cuts in Fig. 4, so that an intermediate part of
the last is provided. Such an intermediate sec
tion may be pivoted by links to the toe and heel
sections as in Fig. 4, and functions in the same
manner as the keystone-shaped part 56.
are set in vertical slots which maintain the align
It is to be understood that in all the forms of
ment of the respective parts of the last. When
it is desired to insert or remove the last from a J the slip last, as shown and described, the saw
cut lines may be unbroken and other stop means
shoe upper, the keystone section 56 is simply
' used for insuring the proper matching of the re
pulled up (by any suitable means) to the dotted
spective parts of the last in its full or extended
line position shown in Fig. 4, thereby shortening
position. In certain instances, such as for ex
the last. The last of Fig. 4 is similar in function
ample in Figs. 1 and 2, the locking means in con
to the last of Fig. 1, because it is provided with
nection with the link l4 would be suf?cient to
a transverse out line between parts 54 and 56
insure the matching of the toe and heel parts
which extends at an acute angle to the longitu
of the last if the saw-cut l9 were a straight out
dinal axis of the last. The use of the keystone
or the curved saw-cut 32 were a continuous
section 56 which moves upwardly, however, per
mits a substantially horizontal movement of the 30 curve.
A slip last made in accordance with the fea
heel part 58, so that it may be pushed directly
tures of the present invention in any of the var
back into the heel of the sewed shoe upper which
ious modi?cations'may be used for the manu
is to be stretched to shape. The line or cut be
facture of shoes in the conventional way, but the
tween parts 56 and 58 is also at an acute angle
to the axis of the last and therefore contributes 35 slip last is particularly useful and preferably used
where the upper is previously sewed to the inner
to the shortening of the last. Means other than
sole, or sock-lining, and then pulled over the
the steps or engaging shoulders may be used for
last and the last extended. The outer sole as
correctly positioning the parts of the last.
well as the heel may be attached to the shoe
Fig. 5 shows a slip last which is a modi?cation
of the last shown in Fig. 1 and comprises a toe 40 upper while it is still on the last, after which
the last may be readily shortened by putting it
part ‘l2 and a heel part 74 separated by a trans
on a jack post, unlatching or unlocking the two
verse broken saw-cut line ‘it. The upper and
sections, collapsing the last to substantially
lower straight portions of the saw-cut line l'ii
shorten it, and then pull the last out of the shoe.
run in the same direction and are connected by
It will be apparent from the foregoing de
a'step comprising a shoulder on the heel part 14
scription that ‘the slip last of the present inven
and a shoulder on the toe part 12 which engage
tion may be used in various way, and may be
each other and determine the proper position of
modi?ed in certain respects. Other modi?ed
the toe and heel parts of the last when the last
forms may be made. These changes are con
is in extended position. It will be noted that
templated
as coming within the spirit and scope
the saw-cut line 16 runs at an acute angle to the
of the present invention, as de?ned by the claims.
axis of the last but in the opposite direction to
Having described the invention in its preferred
that of the line I!) in ‘Fig. l. A locking means
form, what is claimed as new is:
comprising a ?at plate or bar 18 is pivoted to
1. A collapsible slip last adapted to be inserted
the top of the heel part 74 and when in looking
into a sewed shoe upper and used in the forming
position one end overlies a portion of the toe
and lasting of the shoe, comprising in combina
part adjacent the line ‘Hi. When the ?at bar or
tion a toe part and. a heel part separated from
plate It is turned crosswise of the last, the toe
each other by an intermediate keystone-shaped
and heel parts may be moved relative to each
part having matching engaging surfaces respec
other, that is, the heel part may be pushed down
with respect to the toe part, or the toe part may 60 tively with the toe and heel parts of the last, said,
surfaces being substantially transverse to the
be pulled up with respect to the heel part, and
last and at an acute angle to the longitudinal
thereby shorten the last for insertion into or re
moval from the upper of a shoe.
axis of the last, a link connecting the toe part to .
said intermediate keystone-shaped part, a link
In Fig. 5, the saw-cut line ‘56 extends through
connecting the heel part with said keystone
the portion of the heel normally mounting the 65 shaped part, the ends of the links connected to
thimble for the jack pin, and therefore this ele
the keystone-shaped part being below a line
ment of the last is shown as set in the toe part 12.
through the opposite ends of the links when the
Fig. 6 shows a modi?cation of the last of Fig. 5
surfaces of the parts are in their normal engag
in which the saw-cut is curved. In this ?gure,
ing position.
70
the saw-cut is opposite to that in Fig. 2, and it will
2. A collapsible slip last a de?ned by claim 1 in
be noted that the toe and heel parts 12 and T4
which said matching engaging surfaces include a
are pivoted together by the same means, as in
shouldered step for exactly positioning the toe
Figs. 1, 2 and 5, and that a broken curved trans
and heel parts with respect to the keystone
verse saw-cut line 80 extends from the upper por 75 shaped part,
2,405,942
7
3. A shoe last, oomprisingin combination ‘a
toe part'and a heel part separated from each
other by an intermediate upright keystone
shaped part having shouldered surfaces respec
tively matching and engaging corr'espondingsur
faces on the toe and heel parts of thelast, said
surfaces being generally transverse to the last
and at an acute angle to the longitudinal axis
of the last, a link connecting the toe part to
.
8
said intermediate Keystone-shaped part, a link
connecting the heel part to said keystone-shaped
part; the ends of the links connected to the key
stone-shaped part being below a line through the
opposite ends of the links when the surfaces of
the parts are in their normal engaging position,
whereby the ,parts of the last are looked in ex
tended position ‘by end compression of the last.
GEORGE CLAUSING.
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