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Патент USA US2112052

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Filed Sept. 28, 1934
Patented Mar. 22, 1938
Norman B. Smith,P‘r0vidence, R. I.
Application September 28, 1934, Serial No. 745,886
1 Claim;
‘(01. 36—2.5) "
My present invention relates to shoe construc
tions, and has particular reference to a novel
arrangement for adjusting the size thereof.
My invention is particularly applicable. to shoes
5‘ and slippers suitable for assisting the trying on
of gowns and dresses. It has been found that
selection of evening gowns and other expensive
dresses is hampered if the prospective purchaser
is not equipped with footwear suitable for the
10; try-on. Thus, an evening gown is best displayed
when the wearer has evening slippers; but gowns
are usually selected in the day time when the
prospective purchaser is wearing street shoes.
Although models may be used to display the
1.5,: gowns, such display is illustrative only, and a
prospective purchaser is therefore often permitted
towear the model’s shoes during the try-onj but
this procedure is disadvantageous because the
shoes‘ are uncomfortable unless they are of the
20 proper size, and thus detract the purchaser’s at
tention from the appearance of the gown it
It is the principal object of my invention to
provide a slipper or shoe which can be ad
25‘ justed to ?t the foot of a prospective purchaser,
whereby the prospective purchaser can better
judge the appearance of a gown becauseshe .is.
wearing the proper shoe for that gown.- More
over, since the different materials and colors
30 of gowns require a number of shoes to permit
" suitable matching, it is a further object of my
In the drawing:
Fig. 1 is a perspective view of an assembled
shoe embodying the novel construction;
Fig. 2 is a view similar to Fig. 1 but show
ing the separable parts in extended'relation, the 5
interchangeable shoe tip being of di?e'renttype;
Fig. 3 is a perspective detailed View showing
the adjustment mechanism;
Fig. 4 is a section showing a modi?ed form of
adjustment mechanism; and
adjustable so as to permit the user to lengthen l5
and shorten the shoe as desired, the adjusting
parts being arranged to positively lock the shoe
at a predetermined size. To this end, I utilize
a clamp lever which cooperates with a series of
spaced slots on a metal tongue formingr part of
the shoe tip portion, the lever selectively en 20
gaging any desired slot and being restrained
when in locked position against accidental dis;
placement, whereby the size of the shoe may be
positively maintained as adjusted. Moreover, I
have provided an alternative arrangement in
which the working parts are entirely concealed,
whereby the shoe does not differ in appearance
from an ordinary shoe of the same character.
The use of a vmetal adjusting mechanism pos- 30
sesses a further advantage in that the arch sup
invention to provide a construction which will
port is very strong and rigid and better supports
permit different shoe tips to be used, whereby
the arch of the wearer during use.
any desired type of shoe may be readily as
v 35 sembled from a comparatively small stock of shoe
Shoes of the described adjustable and inter
changeable type may also be utilized for other
purposes than for trying on gowns, as for ex
40 ample for week-end visits, or to decrease the
number of shoes'required for a stock company
or a chorus; such shoes are subject to hard wear,
and require a positive lock against accidental
movement or separation of the parts.
It is a further object of my invention to pro
vide an adjustment which is positively locked
in selected position, to eliminate all danger of
accidental relative movement of the shoe parts.
With the above and other objects and advan
50 tageous features in view, my invention consists
of a novel arrangement of parts more fully dis
closed in the detailed description following, in
conjunction with the accompanying drawing, and
more speci?cally de?ned in the claim appended
55 thereto.
Fig. 5 is a perspective view showing the parts
assembled in Fig. 4 in extended relation.
I have found it practical to construct a shoe
with the toe part and‘ the heel part relatively
Referring more‘speci?cally to the drawing, a
typical shoe is shown in Fig. 1, the evening slip
per 10 comprising a heel portion H and a toe
portion l2. The heel portion has a plate It’ se
cured therein, as by rivets, comprising two side
channels I4, l5, the plate having a slot I6 and
two spaced struck-up portions H, H! which func~ 40
tion as pivot ears for pivotally receiving the
hinge portion I9 of a clamp lever 20, the hinge
assembly being completed by means of a hinge
pin 2 l. The lever 20 has an upstanding lock bar
22, see Fig. 2, which is adapted to selectively en- 45
gage any one of a series of transverse slots 23
formed in an arch support member 24 which is
riveted or otherwise secured to the base of the
toe portion W, the support member 2d being
slidably engageable with the plate 13 and close- 50
ly' contacting the channels 14 and I5 so as to
prevent relative lateral movement. When the
lever 20 is turned so that the lock bar 22 passes
upwardly through the slot E6 to engage a selected
slot 20, the sides of the lever 20 pass over snaps 55
This construction possesses the advantage of
permitting selective adjustment of the length of
and thus prevent accidental shifting or move
ment of the rack 31. If desired, the spring 29
may be made weaker, thus permitting ratcheting
of the gear and rack for obtaining quick adjust
It is thus evident that the improved arrange
the shoe, and of retaining the adjusted shoe in
ment provides an adjustable shoe which may be
25, 25 formed in the depending sections H and
I8, whereby the clamp lever is releasably re
tained to keep the lock bar 22 in locked position
in a selected slot 23.
set position; the adjustment is very quickly made,
and can be readily released to permit a change
10 in the length or to change the toe of the shoe,
whereby different types of toes, having different
materials and different colors, may be readily
substituted to match any gown. A flap 21, see
Fig. 2, which is part of the tread of the tip por
tion, is used to conceal the adjusting mechanism.
The adjustable type shoe has many advantages
in addition to the try-on use; it may be used on
week-end trips, as it is feasible to include a num
ber of toe portions which are interchangeably
20 attachable to a heel portion of neutral form or
color; or a small set of shoe heels and toes may
meet the shoe requirements for a stock company
or a chorus.
I have devised a modi?ed construction in which
the operating mechanism is entirely concealed
from view, this modi?ed construction being dis
closed in Figs. 4 and 5, in which the base plate
28 is as before riveted or otherwise secured to
the heel section, and has two side channel mem
bers 29, 30 and an upstanding hub section 3| for
receiving the hub section 32 of a gear 33 provided
with a non-circular, preferably square, opening
34. The gear hub 32 is preferably mounted over
the hub 3| before the channel sections are bent
over, but the parts may, if desired, be modi?ed
to permit removal; an arch support member 35
is secured to the toe portion and is provided with
an elongated slot 36, the hub 32 being positioned
in the slot 36 before the channel sections are
closed over. The arch support 35 is provided
with a rack 31 which is engageable with the teeth
of the gear 33; in adjusting the length of the
shoe, a square key such as indicated at 38 is in
serted through the hub 3| so as to enter the
square opening 34, whereupon the gear may be
turned to move the rack 31 and therefore the arch
support member 35 in either direction. Acci
dental displacement of the set adjustment is
prevented by using a lock such as a spring mem
ber 39 which is mounted at one end on the base
of the plate 28, the other end being freely mov
able to seat in any gear space; the resistance
of the spring 29 is sufficient to lock the gear 33,
set for any desired length adjustment, and which
permits the use of interchangeable shoe tips; the
novel shoe is readily changed to ?t the feet of a
prospective purchaser of gowns, thus facilitating
selection of gowns, and the construction permits
the use of different interchangeable toes, whereby
very few shoe parts are needed to complete a
shoe wardrobe when traveling. Moreover, the 15
combination of interchangeable toes and a lock
adjustment for length provides a shoe construc
tion which is very suitable for a stock company,
a chorus or any other assembly requiring many
changes of shoes.
Instead of using gear and rack means, a ratchet
arrangement such as is utilized in bracelets may
be used; for example, a channel member may be
fastened to the heel portion, having spaced slots,
and a slide member slidable in the channel mem
ber may be fastened to the toe portion, having
a spring tooth selectively engageable with the
spaced slots, and having a manually engageable
part for releasing the spring tooth from the slots,
the spring tooth being preferably cut away so 30
as to ratchet over the slots to shorten the shoe,
although it may be formed to act as a lock ele
ment without a ratcheting function.
While I have described a specific constructional
embodiment of my invention, it is obvious that 35
desired changes in the shape and material of the
parts and in their relative arrangement, may be
made to suit the requirements of different shoe
designers and users, within the spirit and the
scope of the invention as defined in the appended 40
I claim:
In a shoe construction, a heel portion having
a plate member, a toe portion having a plate
member, means for retaining said plate members 45
in contiguous slidable relation, said toe plate
member having a series of transverse slots there
in, said heel plate member having a lock lever
adapted to selectively engage said slots, and means
for retaining said lock lever in slot engaging po~ 50
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