US 432149 A
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(No Model.) Q SGHUMMBL RUBBER SHOE.
No. 432,149. Patented July 15, 1890.
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UNITED STATES PATENT OFFICE.
CARL SCI-IUMMEL, OF HOBOKEN, NEIV JERSEY.
SPECIFICATION forming part of Letters Patent No. 432,149, dated July 15, 1890.
Application-inea April 25, 1890.
To all whom it may concern.-
Be it known that I, CARL SOHUMMEL, of Hoboken, Hudson county, New Jersey, have invented an Improved Rubber Shoe, of which the following is a specification.
This invention relates to a rubber shoe provided with an inner plate havin g down wardlyextending spurs that pierce the soleof the shoe. In this way the sole is protected against rapid wear, while the spurs at the same time constitute ice-Creepers.
The invention consists in the various features of improvement more fully pointed out in the claim.
In the accompanying drawings, Figure 1 is a bottom view of my improved rubber shoe; Fig. 2, a vertical section on line x m, Fig. 1, with sole a partly broken away. Figs. 3 and 4 are bottom views of the heel-plate b and sole-plate h', respectively. Figs. 5 and G are edge views of said plates, and Fig. 7 a face view of one of the plugs c.
The letter a represents a rubber shoe or boot of ordinary or suitable construction and having the usual rubber sole a. Into the shoe a there is placed upon the sole a a perforated metal heel-plate b anda perforated metal sole-plate b. If desired, howeveigonly one plate need be used, either the heel-plate or the sole-plate. The plates Z) b are provided with downwardly-extending spurs b2, that pass through and below the sole a to constitute ice-Creepers and protect the sole against rapid wear. Into the perforations h3 of the plates b b', I place small rubber plugs c, that fill out such openings and are iiush at serai No. 949,426. ma model.)
their upper faces with the faces of the plates. Over the plates b b and the plugs c, I place a rubber insole d and a superposed lining e.
In manufacturing the shoe the plates b b', plugs c, and insole d are properly put in place within the shoe, with the spurs projecting` through the sole a. The entire shoe is then put into the vulcanizer. 'I-Iere the parts a c (Z will become all united into one piece, properly confining the perforated plates b b between them. The spurs b2 should be coated with rubber cement, so that in vulcanizing, the rubber sole a closes up tightly around them and no opening is left for the water to enter.
The rubber plugs c. are of the same thickness substantially as the spur-carrying plates l) b. Thus these plugs, besides uniting the insole to the shoe-sole, prevent the insole from caving into the openings of plates b b.
I claim as my inventionrlhe combination of a rubber shoe with outer sole a', a perforated plate, spurs on said plate, rubber plugs fitted within the openings of said plate, so as to close the same and produce an even upper surface, and an insole above the plate and the plugs, the plugs being united at their upper and lower faces, respectively, to the insole and the shoe-sole, and preventing sagging of theinsole, substantially as specified.
F. v. BEIEsEN, A. JONGHMANs.