US2074166A - Manufacture of cemented footwear - Google Patents

Description

' March 16, 1937'. I w. A. CONDOI I 2,074,166

MANUFACTURE OF CEMENTED FOOTWEAR Filed Sept. e, 1935 o O O 0 O Q o o o 0 Q o O 6 0 0 O o o o o o o 0 o b. vymxaw mm.

a} I: 1 VENTCOR,

Patented Mar. 16 1937 PATENT OFFICE MANUFACTURE OF CEIYIENTED FOOTWEAR William Anthony Condon, Haverhill, Mesa, as-

signor to Compo Shoe Machinery Corporation, New York, N. Y., a corporation of Delaware Application September ii, 1935, Serial No. 39,414!

8 @laims. (Cl. 12-442) This invention relates to the manufacture of cemented shoes, and more particularly to outer soles and their treatment for use in such shoes.

A general object of the invention is to provide an outer sole which is'adapted to form a very firm cemented bond with a lasted upper.

More specifically, an object of the invention is to provide an outer sole which may be formed of relatively loose fibered stock such as belly 1.0 leather; which is nevertheless capable of forming a firm cemented bond with the lasted upper.

Further objects of the invention are to provide a method of forming sole stock to make outer soles of the kind described, and toprovide a 15 method of making a cemented shoe having a firm cemented bond between theoutsole and upper.

A further object of the invention is .to provide a shoe wherein the upper and outsole are'firmly bonded in an improved manner; Other objects of the invention will in part be obvious and will in part appear hereinafter.

The invention accordingly comprises the sev: eral steps and the relation of one or more of such steps withrespect to 'each of the others, and

the article possessing the features, properties,

and the relation of elements, which are'exemplified in the following detailed disclosure, and the scope of the application-of which will be indicated in the claims.

30 -For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying drawing,: in

which:

5" Fig. l is a plan view of an outsole embodying principles of the present invention;

Fig. 2 is a transverse sectional view taken along line l'l of Fig. i; I

Fig. 3 is a transverse sectional, view taken 40 across the iorepart of a shoe equipped with the outsole of the present invention: and w Fig. 4 is,a fragmentary sectional view on an enlarged scale showing a detail of the cement application in connection with the outsole of the present. invention.

'lllie belly leather taken from the lateral edges of cured hides, is of relatively coarse or loose fibered texture. Heretofore, such leather has not In accordance with the present invention an outsole is provided which is adapted to be cemented to a lasted upper and which has a cemented joint of such nature that the above described belly leather may be used to advantage while overcoming the defects previously encountered through its use. While thus primarily useful in rendering such cheap leather available for outsole use, it is to be understood that the present invention also is generally applicable in connection with any type of outsole material in that it aifords a very flrm'andsecure union between the sole and the upper.

Referring more particularly to the drawing, there is provided a rounded blank it of outsole stock. This blank is provided with a channel it which extends from its flesh surface downwardly and outwardly toward its edge along the sole margin. Such channel, as illustrated, may desirably begin at the forward heel seat portion on one side of the sole and continue entirely around the shank and forepart portions back to the heel seat on the other side If desired, such channel may continue entirely around the shoe periphery including the heel, or, in short, it may be provided at any portion of the sole where a firm cemented bond is wanted.

The channel ll provides a marginal lip it which is. adapted to lie fiat against the body portion of the outside. This lip is provided with a plurality of perforations it which extend from its upper or flesh side therethrough into communication with channel ii. These perforations are adapted to provide channels for the flow of cement, and are sulficiently numerousand closely spaced to afford ready access'oi cement from the flesh surface of the sole into channel ll;

' Inconstructing a shoe with the presently described sole, a lasted upper it is provided and a quantity of suitable adhesive lb, preferably pyroxylin cement, is applied between the lasting allowance it of such upper and the marginal portion of the outsole. This cement flows between through perforations it and into channel ll,

sectional outline shown in Fig. 4. Upon hardening, the cement in channel M and that along the outer surface of lip it is joined by a plurality of cementrivets extending through perforations it. The cement in channel it in eflect forms a head for each of these rivets, forming a secure anchorage between the-upper and the sole. The entire fibrous mass in this vicinity is forming a cement body or mass having the cross more or less permeated with cement, which, upon hardening, tends to mat the flbers both within and below lip l2 into a compactly cemented mass which is firmly bonded to the upper. A shoe con- 5 structed in this manner has far greater sole tenacity than can be obtained by the ordinary expedient of simply applying cement between the upper and the flesh surface of the upper soles.

Since certain changes in carrying out the above process, and certain modifications in the article which embody the invention may be made without departing from its scope, it is intended that all matter contained in the above description or shown in the accompanying drawing shall be interpreted as illustrative and not in a limiting sense. g

It is also to be understood that the following claims are intended to cover all of the generic and speciflc features of the invention herein described, and all statements of the scope of the invention which, as a matter of language, might be said to fall therebetween. Having described my invention what I claim as new and desire to secure by Letters Patent, is:

1. An outer sole adapted for cement attachment to a lasted upper, said sole having a channel extending toward but not to its edge forming a marginal lip lying flat against the body of the sole, and said lip having a plurality of perforations communicating with said channel. 2. An outer sole adapted for cement attachment to a lasted upper, said sole having a channel therein extending from its flesh surface downwardly and outwardly toward its edge along the sole margin and having a plurality of perforations extending from its flesh surface to said channel.

3. An outer sole adapted for cement attach- 40 ment to a lasted upper, said sole having a channel therein extending from its flesh surface downwardly and outwardly toward its edge along the sole margin to form a. lip lying flat against the sole body, said lip having a plurality of perforations communicating with said channels.

4. An outer sole adapted for cement attachment to an upper, having a perforate marginal lip lying flat against the body thereof along its flesh side and integrally attached thereto along the sole edge.

5. An outer'soie of coarse flbered belly leather adapted for cement'attachment to a lasted upper, said sole having a perforate marginal lip lying flat against the body thereof along its flesh side and integrally attached thereto along the i sole edge, said perforations being sufllciently closely spaced to pass a quantity of cement beneath said lip.

6. A method of making a cemented shoe which comprises providing a lasted upper, supplying an outer sole having a perforate lip lying flat against the sole body, applying cement between the m5 ed upper and said lip so as to permit passage of -cement through the perforations in the lip and into the channel, and pressing said sole and upper together. A a

'1. A method of making a cemented shoe which comprises providing a lasted upper, supplying an outsole having a channel therein extending from its flesh surface downwardly and outwardly t o-' ward its edge to provide a lip along the sole margin, providing said lip with a pluralityof. perforations. applying cement between said sole and upper, and pressing them together.

8. A cemented shoe comprising a lasted upper, an outer sole having a marginal lip lying flat against the body thereof and having a plurality of perforations therethrough, said lip being integrally attached to the outsole body along the outer edge thereof, and an integral cement bond located between said lip and upper, in said perforations and beneath said lip.

WILLIAM ANTHONY CONDON.

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