US 1975972 A
Description (OCR text may contain errors)
@dto EQSQQ A pggg 1 935 972 INSOLE Filed July 15, 1931 QWMQ Patented Oct. 9, 1934 UITED STATES PATENT OFFICE Application July 15, 1931, Serial No. 550,947 In Germany July 18, 1930 2 Claims.
The present invention relates to an insole consisting of layers of wood and having a bound edge, the layers whose fibers extend crosswise to one another being superposed in a loose man- 5 ner and not held together by adhesives, such as cement or the like.
An insole constructed according to the invention remains porous and absorbs the perspiraoi the feet which will thus be kept cool in summer and warm in winter. Furthermore, by arranging several thin layers of wood one above the other great elasticity and flexibility is imparted to the insole so that it will readily adapt itself to the form of the foot. The layers or" wood whose number may be increased at will can be made so thin that the insole acts like a cushion sole. The fibers or" the layers of wood extend alternately in longitudinal and transverse directions whereby splitting of the soles, even after long wear, is prevented as each cross member binds each longitudinal member.
The wooden layers can be provided with a top and bottom cover to render the insole fit for use in any season.
One form of the invention is illustrated in the accompanying drawing, in which Figure 1 is a top View of the insole; Fig. 2, a top view of an insole with the fibers of the wooden layers extending lengthwise and crosswise and some layers broken away at the front end; Fig. 3, a top view of an insole with the fibers of the wooden layers crossing each other at any angle; Figs. 4 to 8 show different soles in cross section on the line 1-1, of Fig. 1, Fig. 4 showing a sole consisting of a few thick wooden layers; Fig. 5, a sole with a large number of extraordinarily thin wooden layers to create a cushion effect; Fig. 6, a sole with a top cover; Fig. '7, with a bottom cover; Fig. 8, with a top and bottom 40 cover; and Figs. 9 and 10, insole parts in cross section on an enlarged scale.
The insole 2 is bound at its edge in the usual manner with the thread 3 and fabric 4. The various layers of wood may be interconnected by a few seams 5, in which case the seams must extend transversely to the direction of the fibers in the outer wooden layer to prevent the wood from splitting. In Fig. 2, the fibers of the wooden layers 6, 8, 10 extend in longitudinal direction and those of the layers 7 and 9 in transverse direction. In Fig. 3, the fibers of the wooden layers ll, 12, 13 cross those of the layers 14 and 15 at any desired angle.
Fig. 4 shows the arrangement of a few thick Wooden layers. In the insole according to Fig. 5,
a larger number of extremely thin wooden layers are disposed on top of one another to create a cushion effect. In Fig. 6, a top cover 16 and in Fig. 7 a bottom cover 17 are provided while in Fig. 8 the superposed wooden layers are covered by the members 18 and 19. These covering members or layers 20 may consist of any suitable material, such as paper, cardboard, felt, cloth of any kind, woven straw, hemp, reed or the like. Or the wooden layers of which the insole consists may be used as covering means, in which case two or three wooden layers 21, 22, 23, which extend crosswise to one another, are glued together to form a covering layer that can be used for both top and bottom of the insole.
1. An insole with a bound edge, comprising a plurality of wooden layers of substantially tissue paper thinness, the fibers of said layers extending alternately crosswise to one another, the said layers being loosely arranged on top of one another and secured together by stitching only.
2. An insole according to claim 1, in which the stitching which connects the superposed layers extends transversely to the direction of the fibers in the outer wooden layer.