US1369771A

US1369771A - Rubber heel

Info

Publication number: US1369771A
Application number: US338601A
Authority: US
Inventors: Herman L Beal
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-11-17
Filing date: 1919-11-17
Publication date: 1921-03-01
Anticipated expiration: 1938-03-01

Description

UNITED STATES PATENT OFFICE.

.RUBBER HEEL.

Specification of Letters Patent.

Patented Mar. 1, 1921.

Application filed November 17, 1918. Serial No. 338,601.

To all whom it may concern;

Be it known that I, HERMAN L. BEAL, a citizen of the United States, residing at Brookline, in the count of Norfolk and State of Massachusetts, lave invented certain new and useful Improvements in Rubber Heels; and I do hereby declare the following to he a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention relates to an im prom-intuit in rubber hccls.

In some forms of rubber heels such, for example, as illustrated in the patent to Nerger, o. (301,129, when the heel is attached to the shoe heel 1t gaps at two places along the breast line on each side of the center, perhaps abontmidway between the center and the two breast corners of the heel. This is obviously objectionable and the object of the present invention is to produce a form of rubber heel which, when nailed on the shoe heel will close tightly against the shoe heel not only around the outside ed e but along the whole breastline as well. othis end the invention consists in the rubber heel hereinafter described and particularly defined in the claims.

In the accompanying drawings, Figure 1 is a face view of the breast of a Nerger shaped heel before being attached to the shoe heel; Fig. 2 represents the heel after it has been attached; Fig. .3 is a face view of the breast of the heel of the present invention beforebeing "attached to the shoe heel; Fig. 4 is a. similar view of the same heel after bein'gfattached to the shoe heel; Fig. 5 is a plan view looking at the attaching side of the preferred embodiment of the present invention; Fig. 6 is an elevation of the breast'edge of the heel; Fig. 7 is an elevation of the rear edge of the heel; Fig. 8 is a side elevation of the heel; Flg, 9 is a. cross-section of the heel taken on the line 9- 9, Fig. 5, looking (in the direction of the arrow) toward the rear of the heel; Fig. 10 is a similar section, taken on the line 10--10, Fig. 5, looking the arrow) in the same direction; and. Fig. 11 is .a longitudinal medial section taken on the line-1111, Fig. 5, looking in the direction of the arrow.

The Nerger form of heel, a breast view of which is shown in Fig. 1 before being attached to the shoe heel arches from edge (in the direction of to edge of the breast, and when it is attached to the shoe heel it aps open at opposite sides of the center in t 10 manner shown in Fig."- 2. According to the present invention it is proposed so to shape the breast of thehcel that when it is attached to the shoe heel there are no such gapings along the breast hnc. Fig. 3 shows a breast view of the preferred embodiment of the heel before being attached to the shoe heel, and Fig. 4 is a similar view after being attached. The prevention of gapings alon the breast line of the heel is accomplished by shaping the heel m such wise that when pressure is applied to the heel to flatten it on the shoe heel, the surface of the heel radually comes into contact with the shoe iieel StitlLing at the edges and moving progressively toward the con-l ter until the heel makes a contact with the shoe heel all the wa across the breasts This is accomplished by giving the heel a. form which is less curved, or straight, or actually, convex on its attaching face at.the v breast near the breast corners. So, while the heel is of generally concave form, itsshape in different parts is modified'so as to effect this result.

Specifically the heel is described as follows: The ieel is concav0-eonvex and has so the attaching face 1, the tread face 2 and the flaring side and rear ed es 3. The breast. edge 4 is flared at t e breast corners, slightly but at the center it is substantially vertir'zal. The conchve attaching i519. face of the heel is lowest at the breast line, and from this point the surface slopes -up;-} ward in all directions to the outer side and, rear edges of the heel. The side and rear, edges of the heel lire all in one plane, but thlfifi breast 1 is arched as shown best in- Fig...4.' This edge of the heel is arched, but not. ctr-ii cularly' arched, the curvature at the centeii, being greater than at'the edges. In the p'r'e-i fer-red formshown in the drawings this edge near the breast corners is reversely curved with the resultjhat when the heel is nailed on the shoe heel, it comes into close contact all the way across the By reference to Flg. 9 1t =10! with the-shoe heel breast of the heel. will be seen that the cross-section of the heel at that point does not have the reverse curvature'which it has at the breast; further back on the section shown in Fig. 10 .thor

curvature is continuously in the same diroc tion throughout as in F1 9 By reform; i to Fig. 11 it will be seen t at in long tudinal section, the attaching face of the heel extends upwardly and rearwardly from the breast ed e in a. straight line for about half the len t of the heel, and thereafter curves u war y to the rear upper edge of the heel. '1 e side elevation of the heel shown in Fig. 8 shows the side and rear edges located all in one plane and it shows in dotted line the surface of the heel at the longitudinal medial section and upper breast ed e extending from the center of the longitudinal medial element of the surface to the breast corners. The heel is preferably in ads uniform in thiclo ness so that when it is flattened upon the shoe heel its tread surface will be fiat.

In Fig. 5 the dash and dot line 5 illustrates the minimum size to which the heel may be trimmed without cutting into the washers (i embedded in the heel in the our trul part of the heel in the usual manner for the purpose of receiving the nails by which it is secured to the shoe heel. The distance between the dash and (lot line 5 and the edge of theheel shows a wide range of sizes of shoe heels upon which a single heel of this kind is adapted for use.

Viewed in its broader aspects the invention contemplates a new form of heel wherein the attaching face is concave, having a. breast portion of greater, curvature at the center thanlitt the edges. More specifically it contemplates a rubber heel having a concave attaching face wherein thebreast portion of the heel is reversely curved near the side ed es of the heel. It is within the purview 0 the invention that the breast portions of the heel should be substantially straight, viewed as in Fig. 6, with the curvature of the concavity confined to the central ortion. This form of heel is within the efinition of the language used in defining the invention in its broader aspects because this form of heel has reater curvature at the center than at the si es of the breast.

While the present invention has beeI'r-illustrated in connection with a heel having a concave attaching face wherein the breast portion of the heel only is reversely curved at the sides, or wherein the breast portion onl' has renter curvature at the center than at he si es, it is to be understood that the invention contemplates a, heel wherein the concave attaching face is reversely curved or straight at its outer portions, or wherein the concave attaching face has greater curvature at its center than at its outer portions.

It will be observed that when the heel is attached to the shoe, the side and rear edges are all in contact with the side and rear edges of: the heel of the shoe, and that the breast portion of the heel is arched above the surface of the shoe heel. As the heel is gradually flattened down upon the shoe heel by the driving in of the na ilsthe' side and rear edges of the heel remain firmly in contact with the shoe heel and are held in such contact by the distortion of. the rubber due to its being fiathmcd upon the shoe heel, and, owing to th hart that the breast portion of the heel has n greuler curvature at the center than at its sides, the breast portion of the heel comes into close contact with the shoe heel throughout the whole length of the breast from edge to edge, so as thereby to make and preserve a tight joint along the breast of the heel. This is a feature of importance from the point of view of the cus tomer because of the superior appearance it gives the shoe. In addition the shoe heel is more durable by reason of the exclusion of water from under the rubber heel, for dampness or water under the rubber heel deteriorates the shoe heel, particularly shoe heels made of paper or leutherboard, which, in

view of the high price of sole leather, have largely supplanted the latter.

I aving thus described the inventiomwhat is claimed is 1. A rubber heel having a concave attaching face and a breast portion of greater curlatiire at the center than at the sides of the 2. A rubber heel having a concave attaching face, the breast'portion of which is concavely curved at the center and 'reversely curved at the sides. r

3. A rubber heel having a concave attaching face normally open at the breast, portions at the center having greater curvature than portions remote from the center.

HERMAN L. BEAL.