US1874924A - Expansible toe form - Google Patents

Description

Aug. 30, 1932. w J DE w 1,874,924

EXPANSIBLE TOE FORM Filed Jan. 26. 1931 711119 @5207 vzgya.

Patented Aug. 30, 1932 UNITED STATES WILLIAM J. ma:

' EXPANSIBLE 'roii roam V a Application filed January 26, 1931. Serial no. 511,165.

This invention relates to an improvement any roughness or uneveness in the shoe in which it is inserted and prevents its advance into the proper position, second, there is a backward tendency exerted against the toe form when in the proper position which is resisted only by the rearward part of the.

form and to overcome which prongs which engage the inner sole have been provided, as shown in my Patent No. 1,632,955, dated June 21, 1927, or back part wires have been attached to the toe form to contact with the heel counter, as shown in my Patent No. 1,646,016, dated October 18, 1927, third, the expansion of the form can obviously take place only at the rearward part and hence only the material at the ball of the shoe is placed under tension.

The primary object of this invention is to provide a toe form having a shell with an open ended toe and cross braces by which the side walls of the shell are yieldably expanded throughout their length and thus bear with a balanced pressure against those portions of the shoe with which they contact.

A toe form embodying this invention overcomes the various objections noted above,

since its open end permits the advance of the form to the proper position in the shoe and also allows the forward ends of the side walls, as well as the rearward ends, to shift laterally, thus providing a balanced pressure throughout the extent of the side walls so that not only are all portions of the toe prop erly tensioned but also the tendency. of the form to move backward is resisted by the contact of the whole surface of the form with the shoe and not by the contact of the rearward portion only.

.One embodiment of a toe form made according to this invention is described in the; following specificationand illustrated in the accompanying drawing in which: F igs. 1 and 2 are a plan view: and side elevation respectively of such a toe form in its normal condition; and

Figs. 3 and 4 are bottomplan views there-' wrrr, or AUBURN, NEW YO AssIGNoR TO SHOE FORM (10., INC., on AUBURN, NEW, yonx, A CORPORATION on NEW YORK I of, the, forward end of the form in Fig. 3

being contracted, and the rearward end proportionally expanded, while. the rearward end of the form in Fig. 4 is contracted and the forward end proportionately expanded v the cross braces remaining in the same p0 sitlon in both figures.

In the drawing the toe form comprises a shell 10 and cross braces 20. The shell is of resilient, flexible material, for examplecelluloid, having sidewalls l1 and 12 Whichterminate in inwardly projecting flanges 13 and 14 respectively. The toe 15 of the form is, open ended and the flanges 13 and 14 are notconnected as in the toe forms shown iii the patents above cited. In the flanges 14- and.

13 near the rear end thereof are formediarcuate slots 16 and 17 respectively with which the cross braces co-act. r

The 'cr'ossbra'ces 20 comprise two bars 21, l 22, the forward end of each bar being pivotally secured to the flanges 13 and 14$.by'rivets 23.; [The rearwardend of each bar is slidable in a slot in the flange opposite to the flange to which the bar is pivoted and in the present instance carries a rivet 25, the shank of which passes through the slot. Suitable bosses 26, are formed in the'flanges by which the'bars are engaged tohold them removably in the desired adjustedposition When the toe form is inserted into-the shoe the open end of-the shell-permits it to advance the/proper amount, regardless of any roughness or unevenness at the toe. In

Figs. 3 and'4 are illustrated the positions theform'would assume when inserted into shoes differing in contour. After the form has been inserted the cross bars 21, 22are swung forwardly in the slots 16 and-'17 to expand the shell; This mov,ementof the] l bars tends primarily toexpand the rearward H part'of the shell but it is obvious that if, for example, the rearward end of the side wall side walls will bear withbalanced pressure 11 is in contact with the wall of the shoe while the forward end of the side wall 12 is away that end will be advanced into contact bythe pressure of the cross bar 22. At the same time if the torward end of the side. wall ll is away from the shoe wall that end of the side wall' 11 will move ontward-ly,' and, while the rearwardendof the side wall would tend to be moved proportionately inwardly by this action oi' the sidewall, it=would,. on; theother hand, beheldinthe proper posit}; tion by the cross bar 22. Consequently after the form has'been advanced into theproper: position andadjusted by the cross bars, the

throughout their extent upon the portions V of'thesh'oe with which they are in contact.

The materialformin'g the toe of the shoe will thus be'prop erly plumped out and at the "Qfittllfiq time this contact ofthe shell with the r shoe toe will resist thetendency of the toe form to retreat and hold it in place u'nti'lthe Crossbars have been retracted and thepressure of the shell againstthe toe ofthe shoe gs reduced; V r Theforward edge oi -the shell at the open toe '15 may, if'ide'sired', be stiifened slightly; as byjrolling or by the provision of beadl or narrow flange" 30 for the purpose of "gm, seeing this edge a trifle more stiilnessor rigid- Zity, and to render the sliding of the form intothe 'forepart of the shoe'without interfering extending flanges, and cross braces engagingria vi g.rans pe eende n ei nd;inwa dly:

extendingygfianges eachgflange having an arcuate slot and cross braces engaging said flaliges,-eachi cross brace being pivotally connected at one end to one of said flanges and slidableat the otherendin the slot of the opposite flanges, is l Signed "by meat Auburn, ,N'w York this appreciably -.with the expansion or contracr 1 tion ottthe shell as described hereinabove. 35; While one embodiment of this invention has been shown and described i am not limited thereto since other embodiments can be made without departing from the spirit and scope of the invention as set fo th in the folg-lowing claims.

I claim: v i 7' 1. Aniexpansible toe form for insertion into the toe of a shoe comprising a hollow thin walled-shell of resilient fiex-ible' matei g riahhaving an open-ended toe andacrossw braces connecting the side walls of said shell;

the-side walls of the shell bearing throughout I their extent'with balancedpressure against those portions of theshoe with which they Y Bi'ggCOIltflClL' 2.:An expansible toe form for insertioninto the toe of ashoecomprising-ahollow thin walled shell of resilient, flexible materialhaving ano-pen-ended toe and cross tagbraces connecting the side walls of said shell,

one at least of'said cross braces being adjust able to separate the side wall of the shell,I and said side walls by reasonof the open ended toe bearing with balanced pressure ee'ith'roughout their extent against those poretions or, the shoe with which theycontact, v

3. An expansible toe form for insertion into thestoe ofa shoecomprising ahollow r thin walled shell .01 resilient, fiexibl'e matew l i ngen Op -e d d a dr' w d yr

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