US1948347A - Arch support - Google Patents

Description

Feb. 20, 1934. GHLEAR 1,948,347

ARCH SUPPORT Filed Sept. 19; 1931 3 I INVEN TOR. 6501761. 14 65/4541? ATT RNEY Patented Feb. 20, 1934 ARCH SUPPORT George W. Geilear, New York, N. Y.

Application September 19, 1931 Serial No. 563,721

1 Claim.

This invention relates to arch supports.

The object of the invention is to provide an arch support of a material which may be easily formed in a semi-plastic condition and when formed will retain its shape, but which is flexible and unbreakable from use.

A further object is to provide an arch support which is impermeable to moisture (sweat) so that it is odorless in use and so that it is sanitary and may be washed.

A further object is to provide an arch support which will not rust, corrode or otherwise deteriorate under the conditions of moisture, heat and constant flexing, and of a character as not to require any covering of fabric, leather, or other material.

A further object is to provide an arch support of extreme lightness having the foregoing characteristics, and at the same time formed of an upper and a lower plate, the latter of which is secured under a slight tension to provide resilience and provided with a longitudinal strengthening rib.

It has been found by experiment that an arch support composed entirely of celluloid and comprising an upper plate and a lower plate secured under tension with a longitudinal corrugation and having ventilating openings through both plates accomplishes all of the foregoing objects.

The invention consists of the construction, combination and arrangement of parts as herein illustrated, described and claimed.

In the accompanying drawing, forming part hereof, is illustrated a form of embodiment of the invention, in which drawing similar reference characters designate corresponding parts, and in which:

Figure 1 is an edge elevation of the inside edge of the support;

Figure 2 is a bottom plan view;

Figure 3 is a longitudinal section taken approximately on line 3-3 of Figure 4; and,

Figure 4 is a transverse section taken approximately along line 4=--4 of Figure 1.

Referring to the drawing, 5 designates an upper plate and 6 designates a lower plate, both formed of celluloid and without other covering or material.

The plates 5 and 6 are secured together by means of eyelets 7 of a size larger than is necessary to actually secure the plates together, to provide means for the pasasge of air when the plates are flexed in use by the wearer, so that a ventilated construction is provided. Further, in securing the lower plate 6 to the upper plate 5 the lower plate 6 is placed under a slight tension so as to produce a very resilient construction.

The upper plate 5 is provided with an upturned the rib so formed is u pward so as to bear on the under side of the upper plate 5.

By actual experiment it has been found that celluloid is impermeable to moisture and can be washed, so that the construction is more sanitary.

Such experiment has struction of celluloid further proved that a conis extremely light and will not crack nor will it fail under use such as a metal arch support will do.

By reinforcing the under plate with a rib longitudinally thereto and securing it under a slight tension a very resilient and at the same time light construction is provided.

Also, celluloid under a slight degree of heat may be molded or formed easily into the desired shape and when so formed it will retain the shape into which it is pressed, and naturally, an arch support of this material otherwise deteriorate moisture, body heat a will not rust, corrode, or under the conditions of nd constant flexing.

Having thus fully described the invention, what is claimed as new an Letters Patent is:

d desired to be secured by An arch support comprising an upper plate and a lower plate secured together by means of ventilating eyelets an d composed of celluloid. GEORGE W. GEILEAR.

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