US1334213A - Insole - Google Patents

Description

JOHN BERGSTEN, OF NEW YORK, Nr Y.

INSOLE.

Specication of Letters Patent.

Patented Mal'. 16, 1920.

Application led January 25, 1919. Serial No. 273,051.

To all whom t may concern.'

Be it known that I, JOHN Bnnes'rniv, a subject of the King of Sweden, and a resident of the city of New York, borough of the Bronx, in the county of Bronx and State of New York, have invented a new and Improved Insole, of which the following is a full. clear, and exact description.

The object of the invention is to provide a new and improved insole to be inserted in shoes, boots and other footwear', and arranged to keep the feet of the user of the footwear warm and dry; Another object is to provide an insole which is naturally resilient thus insuring easy walking. Another object is to utilize the heretofore wasted bark of the balsa tree in the formation of the insole.

With these and other objects in view the invention consists of certain novel features of construction as hereinafter shown and described and then specifically pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings forming a part of this specification, in which similar characters of reference indicate correspondingr parts in all the views.

Figure 1 is a plan view of the insole, partly finished;

Fig. 2 is a similar view of the same in finished condition; and

Fig. 3 is an edge view of the same.

The insole is preferably manufactured from the bark of the balsa Ochroma Lagopus), now generally wasted, the bark being exceedingly light, soft and porous and, therefore, exceptionally desirable for use as an insole. The front portion 11 of this body 10 is preferably split to permit the insertion of reinforcing sheets 12 of the same material but with the fibers running transversely, as plainly indicated in Fig.l 1, these `sheets being preferably arranged in a single layer side by side, with their meeting edges 14 extending transversely of the insole at a point approximately beneath the ball of the foot. A transverse break is thus provided in the insole at the point of greatest bend when walking, thereby providing the necessary pliability for the insole. The heel portion 15 of the body is likewise split for the recep tion of a. plurality of superimposed sheets lfi of the same material. and with the fibers run ning transversely, as shown in Fig. 1. The i several sheets are fastened together by stitches 20, sundry of which extend along the margin of the insole and others extend across and diagonally or in any other desirable manner, securelyto fasten the layers together. It will be noticed that by the insertion of the sheets 12 the front portion of the insole is reinforced without being rendered unduly thick, and the heel portion is reinforced by the superimposed sheets 16, which, besides reinforcing the heel portion, provide the desired cushioning efl'ect.

lt is understood that in order to render the bark of the balsa serviceable for forming the insole it is necessary that such bark is cured by steaming the same to allow. of removing the tough outer skin and to permit of readily splitting a sheet of a desired thickness and for forming thinner sheets for the insertion at the split front and heel portion of the main sheet.

It is understood that an insole made of the material 'mentioned and constructed in the manner described is exceedingly light and tends to keep the foot of? the user of the footwear warm and dry.

Having thus described my invention, 'l'. claim as new and desire to secure by Letters Patent 1. As an article of manufacture, an insole comprising a body sheet of fibrous material and having a plurality of layers with the fibers extending lengthwise of the insole, and

reinforcing sheets of fibrous material interposed between the layers of the said fibrous body sheet at the front thereof, said reinforcing sheets arranged side by side in a single layer with their meeting edges extending transversely of said insole at the ball of the foot, reinforcing sheets of fibrous material arranged in a plurality of layers interposed between the layers of the said fibrous body sheet at the heel thereof, said front and heel reinforcing sheets having their fibers extending transversely of the tif) l sheet and reinforcing sheets together.

insole, and means for fastening said body the fibers extending transversely of the insole interposed between the layers of the said 2. As an article of manufacture, an insole fibrous body sheet, said reinforcing sheets 10 comprising a body sheet offibrous material arranged side by side in a single layer with and having a plurality of layers with the their meeting edges extending transversely e fibers extending lengthwise of the insole, and of said insole at the ball of the foot.

reinforcing sheets of fibrous material with JOHN BERGSTEN.

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