US1058857A - Rubber heel-lift. - Google Patents

Description

A. A. GLIDDEN.

RUBBER HEEL LIFT. APPLIGAT ION FILED APR.23, 1910v I Patented Apr. 15, 1913 all!!! i fiventof;

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ments in rubber overshoes and has nn san'rns ra'rnn'r OFFICE.

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RUBfiEE HEEL-LIFT.

Specification of Letters Patent.

Patented Apr. 15, 1913.

T 0 all whom it may concern:

Be it known that I, ALFRED A. Gunman, citizen of the United States, residing at Watertown, Massachusetts, have invented certain new and useful Improvements in Rubber Heel-Lifts, of which the following is a specification.

My present invention relates to im roveor its object to strengthen the shoe and enhance its wearing quality, preventing the breaking (a cracking of the same in proximity to the heel, which is very common when the overshoe is worn: over the hi h heeled ladies shoes now so generally use The invention includes the novel features hereinafter described and particularly defined by the appended claims.

Rubber overshoes embodying my invention are shown in the accompanying drawings, in which, 1

Figure 1 is a sectional view of such an over-shoe. Fig. 2 is a similar view of a modification, and Fig. 3 is a view ofa further modification. Fig. i is a section through the line A B of Fig. 1. I

Referring by reference characters to this drawin the numeral 4 designates an oven shoe 0 the ordinary construction. Upon the inside of the shoe and directly over the heel 5 ll place a lift of soft rubber compound 6, which is made of uncured stock and applied in place before the shoe is vulcanized, so that when the shoe, with the inserted inside lift is vulcanized, the said lift is held firmly in place and becomes an integral part of the shoe. At the same time it provides a soft elastic medium between the heel of the leather boot and the inner face of the overshoe. This I have found by experience preventscrackin or breaking of the overshoe around the loci.

I prefer to provide the lift with a thinner portion extending upwardly from its edge around the sides and rear of the heel, as indicated at 7, and the fabric lining 8 is caused to overlap the upper edge of the part 7. Similarly the inner fabric sole lining 9 is caused to overlap the front edge of the heel portion as indicated at 10.

While the flange or box like formation of the rubber lift or lining is desirable, I have found that material advantages are secured by the use of forms such as shown in Figs. 2 and 3.

In Fig. 2 only the upwardly extending flange or portion at the front of the rubber lift 6 is used, While in Fig. 3 the lift .6 is

shown ashavin'g n'o marginal flange at all. While a rubber lift from a plain sheet of rubber compound may be used, I have found it advantageous to use a lift madein-three efi'ect obtained in the all ru ber lift, while the metal insertion gives the stability neeessary. I

I have found-that this hit or heel' sea-t socket may be fastened in the overshoe either by cementing or bymechanical means after In this case the the ovcrshoe is vulcanized. lift or socket is formed and vulcanized in any of the well known methods and applied to the inside of the overshoe by any esired method. The elastic cushion effect is obtained whether applied before or after the overshoe is vulcanized.

' Having thus described my invention what I claim is: x p

1. A rubber overshoe havlng a depressed heel seat and a lift of soft rubber compound completely covering the upper surface of said depressed seat and vulcanized thereto.

2. A rubber overshoe having a depressed heel seat'and a lift of soft rubber com ound ap lied to and completely covering e in si e upper face of the heel and having an upwardly extending marginal flange, said lift and flange being vulcanized in place.

In testimony whereof, I aflix my signature in presence of two witnesses.

ALFRED A. GLIDDEN.

Witnesesf O. H. Rornn, T. M. READ.

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