US1177136A - Rubber boot or shoe. - Google Patents

Description

R. 3. PRICE.

RUBBER BOOT @Si SHOE.

APPLlcATioN FILED APR. 21, 1915.,

Patented Malz 28, i916.

RAYMOND B. PRICE,

ORNEW YOR-Kfu. Y. COMPANY, A CORPORATION or INDIANA.

sans nr oc.

, -AssIGNOR To RIBBER REGRNERATING RUBBER BOOT OR SHOE.

Applieation med April-"a1,

To all whom t may conc-1m: i A

Be 1t known that I, RAYMOND B. PRICE,

.a citizen of the United States, and a resident of New York, county' of New York, andA State of New -York, have invented certain new and useful Improvements in'Rubber Boots or Shoes, of which the following'is a :.rubber, and, second, whereby thefinished Vboot or shoe will be characterized by uniformity of adhesion between the various plies of material.

vThe invention will be easily understood from the following description taken in connectionwith the-.accompanying drawing in' which- Figure 1 is a side elevation of a boot e1nbodying my improvements; Fig. 2 is a fragmentary view of the boot partly 1n section` showing the strengthening patches; Fig. 3 is Aa view of the unitary supporting layer partly in section. t

The fabric used for supporting` andV strengthening' the rubber has been formerly gut from fiat sheets 4and then shapcdlto the inanyl irregularities and curvatures of the form or last on which the boot or shoe is built. The abutting edges of adjacent portions of the sheets are often left free from each other and more or less separated, tl1ercby adding nothing whatever to the support or strength of the rubber that spans the gaps between them.

The above objectionable feature I eliminate by forming a layerlO for supporting the rubber, of fabric or fibrous material which in its primary state is a continuous unit having a predetermined formation to correspond to the foot and leg portionsof the boot, shoe, or oversl'ioetof'be produced. This is drawn on to the form 11 and may, if desired, be made slightly smaller so that it will fit snugly. When desired this layer.. may be provided with avslit or slits tof'facilif tate its being placed upon ti'iej'formfalsq Specification of Letters Patent.

Patented Mar. 28, 1916. 1'915. serrano. 22,774.

more than one layer of the material may be used. i f

For varying the thickness, compactness,

flexibility, strength, etc., of this supporting layer,..adhesive patches such as shown at 12, 13, 14 and 15, preferably of fabricor fibrous material, although not necessarily so, are usually applied to predetermined portions of the strengthening layer 10 to met the Various requirements as to wear which the boot or shoe is subjected to. The rubber cover 16 and rubber sole 17 in an unvulcanized condition. are then applied to the entire exposedexterior surfaces of the supporting layer 10 and strengthening patches 12 to 15 inclusive. The patches (as well. as the rubber cover,

ete), are usually applied by means of rollers which are manually rubbed over the patches and press the same more or less intimately against the lining to which they adhere. If the roller could be used with the application of the proper amount of pressure and uniformly throughout the entire surface, a satisfactory efliciency in wearing quality would be obtained. But no matter howfskilfully the boot or shoe may be made by Such a process, it is impossible to obtain uniform adhesion throughout the entire area of the patches.

Accordingly, in carrying out thisfinvention, I may dispense wholly or in part with this rollingf the patches into engagement with the layer 10, it being simply essential to the practice of the invention, that after the patches are applied, the boot or shoe be vulcanized in a peculiar manner, which is In abbot or shoe so made, the continuous unitary llayer 10 eliminates the gaps, crevices and the like, bridged by vulcanized ruber,4 while thevarious layers of rubber and fabric will adhere to 'each other with much greater tenacity than is the case with a boot or shoe made by the old process, the real factor` vies the article. A boot or shoe A characterized by en adhesion ol. the plies which is uniform and the seine throughout any equivalent surfaces, and by equivalent surfoces'l mean that the fabric on each side :1nd the rubber involved should be identical.

ln other worde,` e Woven patch applied on' top of another woven' patch would not show the suine adhesion ne if applied vto a, knit lining even iithe rubber involved were the Same, because in one Case tl e woven fabricl would be joined to n woven fabric and in the other to n nhflerent i'abric. ln feet, if

un open Weave fabric is frictioned and cured to a. closely Woven fabric, the adhesion willl be different than il? two open weaves und two 4close Weuvesi are united,v Therefore, to come Within the meaning Whichl attach to equwaient surfaces, it is necessary, as above stated, that ythe fabric on, Veach side and the -rnbber involved should be` identical.

Having described my invention, what l `claim and desire to protect by Letters Patent is: l 1

A boot or shoe comprisingvnlcanized rubber, a rubber-supporting'layer/of fabric or fibrous material of continuous conformation, preformed to comprise footlz'rnd ieg portions similar to that of the .boot or Shoe, and

patches reinforcing 'seid layer and' adhesively secured thereto, theadhesion between the pntcllesend said layer throughout any equivalent surfaces being' of the seme tenacity.

Signed et New York, N; Y., this, 19th day,

of April, 1915.

RAYMOND B. PRICE.

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