US2165494A - Shoe insole - Google Patents

Description

y 1939- E. 1. LA CHAPELLE 2,165,494

SHOE INSOLE Filed June 6, 1958 JiT eW for.

Pal i t 1 1 39 2,165,494

' UNITED STATES PATENT 'OFFIQE SHOE INSOLE V Euclid I. La Chapelle, Brock'ton, Application .lune 6, 1938, Serial No. 212,046

1 Claim. (Cl. 36-22) My invention relates to welt shoe insoles and menting of the sewing rib to the insole preparamore particularly to fabricated welt shoe insoles, tory to stitching the same thereto and carries such as composed of a plurality of superposed certain serious defective conditions. For incemented layers of insole material. instance, the sewing rib cannot be positioned A fabricated welt shoe insole, like a leather and cemented to the insole as far inwardly from 5 welt shoe insole, when of the gem type, as thin its edgeface, along its inner shank part, as good insoles generally are, is shouldered and channeled practice and style demand, because of the predeand then the shoulder-lip and the channel-lip termined extent of the penetrating movement of are raised up to form part of the sewing rib with the needle of the stitching machine all around 10 canvas applied thereover and over the entire plane the insole. Moreover, the inseam stitches must 9 face of the insole up to the heel seat portion. necessarily be set above the stitches uniting the Such welt shoe insoles are termed gem insoles" sewing rib to the insole in close proximity to the and, besides being costly, are disadvantageously bottom of the stitch receiving portion of the sew- Weakened by the channeling process involved. ing rib, as otherwise the stitches would be sev- Attempts have been made from time to time ered by the awl of the welt shoe inseaming matowards providing a sewing rib, substantially as chine. But, to set the inseam stitches above the herein shown, upon fabricated welt shoe insoles bottom of the stitchreceiving portion of the sew- Without channeling and without gemming and ing rib, is against the best dictates of inseaming,

with the use of fastening adapted to permanently which are that the stitches should be set at the 0 hold the sewing rib from lateral displacement on extreme bottom of the'stitch receiving portion of 2, the insole and that would not pass through the the sewing rib for solidity and tightness of ininner plane face of the insole and marr its seam and for uniformity of inseam line all around smoothness. So far as I am aware, towards the the contour of the shoe. attainment of this objective cementitious mate- In this connection it is to be noted that I prorial has heretofore been the only fastening means vide fastenings which are positioned at a sub- 25 brought forth for holding the sewing rib to the stantial distance from the edge face of the insole fabricated insole. But cementitious material and from the stitch receiving portion of the sewalone, cannot hold the sewing rib to the fabriing rib, so that the needle of the welt shoe incated insole (or to a leather insole) at the welt seaming machine may not engage therewith and shoe inseaming machine and during the entire which may be readily inserted through the sewing 39.

time of wear, so that none of these-attempts has rib and partly through the insole regardless of ever been successful in practice. the position of the sewing rib relatively to the A leather welt shoe insole, provided with a edge face of the insole. sewing rib, substantially as herein shown, is now Fabricated insoles are less costly than leather being made without channeling and without geminsoles, being generally made of pulp or the like, 3?

ming and with permanent fastenings in the form and, in some respects, fabricated insoles may be of stitches not protruding through the inner plane superior to leather insoles. Fabricated insoles for face of the insole, by engaging and passing several years have been and now are extensively through the edge face of the insole and under used in types of shoes not requiring a sewing rib,

40 the surface of its inner plane face and through such as McKay and cemented types of shoes, and 40 the inner flange portion of the sewing rib-the are used to some extent in welt shoes under the stitches being set upon the edge face of the insole gem process, as already herein explained.

and upon the inner flange portion of the sewing But the great desideratum of bringing forth a rib in close proximity to the bottom of the stitch satisfactory and economical fabricated welt shoe receiving portion thereof. insole having a cemented sewing rib upon one 45 But, in the case of a fabricated welt shoe inof its plane faces and requiring no shouldering, sole composed of a plurality of superposed layers no channeling and no gemming operation and of insole material, such as herein shown, the having permanent fastenings for positively holdlaminated edge face of the insole then cannot ing the sewing rib from lateral displacement on hold the stitching thread under the strain of the insole atthe welt shoe inseaming machine 50 stitch setting, so that such a mode of fastening and during the entire time of wear, without passthe sewing rib to the fabricated insole is inoperaing through the inner plane face of the insole, tive and impractical. has been for'the first time attained by my present Furthermore, this mode of stitching the sewing invention, rib to the insole involves the positioning and ce- My invention, in its most vital aspect, resides 55 in the location of sewing rib holding means through the sewing rib and into the insole outside of the path of the movement of the needle of the welt shoe inseaming machine so that the I represents the sewing rib, as a whole, which,

preferably, is of fabric material, such as canvas, and the rib 2, forms the inseam stitch receiving portion thereof. As shown, the said rib 2, is reinforced by a strip 3, which is, preferably, of paper or the like. Extending from the stitch receiving rib 2, are the inner flange 4 and the outer flange 5, which are cemented to the plane face of the fabricated insole 6, which, as shown, is composed of a plurality of layers of insole material which generally is of the nature of paper like material. For positively holding in co-operation with the cement, the said cemented sewing rib from lateral displacement on the insole at the welt shoe inseaming machine and during the entire time of wear, I provide the metallic fastenings "I, which, as shown, are, preferably, in the form of arcuated staples adapted to engage the inner flange 4, of the sewing rib l, and which pass through only a portion of the thickness of the insole and clinch upon the plane face of the insole, as best shown at 8, in Figs. 1 and 3. I, preferably, adopt latex rubber cement for holding the sewing rib to the insole.

Of course, the staples may be clinch-ed directly upon the inner flange 4, of the sewing rib I, depending upon the width of the flange, and it is believed that one staple at every one half inch should be suflicient topositively hold, in cooperation with the cementitious material, the sewing rib from lateral displacement on the insole at all times. As herein shown,,the staples, preferably, are disposed relatively to each other in substantially straight alignment.

Rigid fastenings, of a rigidity adaptable for positively holding, in co-operation with cement, the sewing rib from lateral displacement on the insole, of fabricated type or of solid leather type, at the welt shoe inseaming machine and during the entire time of wear, is for the first time provided and such fastenings are best for the purposes described.

In this connection it is to be noted that a sewing rib on any welt shoe insole is subjected to great strain outwardly towards the edge of the insole under the effect of wear and firstly under the eiTect of stitch setting at the welt shoe inseaming machine. In the event of the sewing rib being disturbed at the welt shoe inseaming machine, the peripheral contour of the shoe then would be distorted and lack in the uniformity so much desired; and still more serious results would ensue in the event of being disturbed during the time of wear.

Although metallic fastenings in the form of arcuated staples are herein shown and preferably adopted, my invention, in its broader aspect is intended to cover and does cover fastenings of any suitable material of a rigidity adapted to positively hold, in co-operation with the cementitious material, the sewing rib from lateral displacement on the insole at all times, such as, for example, fibre pegs of a length adapted to extend only through a portion of the thickness of the insole, and, whenever the context so permits, the claim is to be interpreted in that sense.

Moreover, although my invention has for prime objective the bringing forth of a fabricated welt shoe insole, it is to be appreciated that my invention is not to be limited to such an insole and, Whenever the context so permits, the claim is to be interpreted to include solid leather welt shoe insoles and any and all kinds of insole material adaptable to my invention.

In the making of a welt shoe insole such as herein shown, the sewing rib may be formed, applied and cemented upon the insole by the well known Poole machine; and the arcuated staples may be formed and inserted by the well known Littleway machine once the insole is assembled on the last.

Having thus explained the nature of my invention and shown the best form of embodiment now to me known, what I claim as new and desire to secure by Letters Patent of the United States is:

A welt shoe insole comprising a body portion and a sewing rib having an inwardly extending flange, the flange being cemented to the body portion of the insole, said cement bond being reinforced by only a single row of rigid fasteners which are located at a substantial distance inwardly from the inseam stitch receiving portion of the sewing rib and which pass through the sewing rib flange and only part way through the body portion of thednsole.

.EUCLID I. LA CHAPELLE.

Images