Meyer v. Pritchard

17 F. Cas. 246, 12 Blatchf. 101, 1 Ban. & A. 261, 1874 U.S. App. LEXIS 1861

Opinion

BLATCHFORD, District Judge.

This suit ■ is brought on reissued letters patent [No. 4,977] granted to the plaintiffs, July 16th, 1872, for an “improvement in rubber overshoes,” the original letters patent [No. 111,9G2J having been granted to them, as inventors, February 21st, 1871. The specification says: “Our invention relates to the strengthening ribs employed upon the uppers of India rubber shoes, and consists in an improvement which will be hereinafter described, and subsequently specified in claim. Figures 1 and 8 represent plain views of two modifications of these ribs, and Fig. 2 a sectional view of forming rolls, with the plastic substance passing therethrough. Fig. 4 is a section of Fig. 1. A A, in Fig. 1, represent plain ribs, enclosing a space, in configuration similar to the openings in the uppers of ordinary rubbers. B represents a rib around the top or mouth of the shoe, b is an imitation thread passing around each rib. A' A', in Fig. 3, represent the ribs -arranged in the form of a single ornamental buckle. B’, in Fig. 2, represents rolls, of which the lower is plain, and the upper ribbed or pointed at d, and grooved at c, to make the strengthening ribs A A' or B, and the rows of imitation stitches b, which said ribs and grooves will be in any form or shape and location on the roller, according to the form or location of the rib or other device it is desired to produce. .The imitation stitches may consist either of indentations formed in the surface of the sheet, or points projecting above the surface — the one will be formed by projections on the rollers, and the other by indentations, a a represent the ribs formed from plastic rubber as it is carried through the rolls, and it will be observed that they are not corrugations, like the strengthening ribs used upon metal, but a thickening up of the substance in certain lines or directions, a', in this figure, represents the indentations to imitate thread stitches. The process through which the material passes, to bring it into the form required, is as follows: The mass of plastic rubber is forced into the opening between the moulding or shaping rolls, and drawn out into a sheet, with the ribs and points or indentations completely shaped. It is then made up into the shoe or sandal, and vulcanized. We thus produce these ribs or figures in homogeneous connection with the other part of the sheet.- They are, therefore, better than when of separate strips, pasted on in the gummy state after the sheet is formed, and secured to it in the vulcanizing process, as in the common way; and, being formed at the same time the sheet is rolled, and by the same operation, it is done without expense other than the preparing of the grooves, indentations and points in the rollers. Moreover, the said ribs or figures will be much more perfect and uniform than when done by hand. The same is true in regard to the imitation stitching, also, which has heretofore been made by a pointed wheel rolled alongside of the ribs by hand.” The claim is in these words: “As a new article of manufacture, India rubber shoes, with strengthening or other ribs homogeneous with the substance of the body, formed by thickening up the said substance in the forming of the sheet, substantially as specified.”

The invention set forth in this specification, as shown by the description and the claim, is to thicken up the plastic India rubber, in desired places, in the sheet, as the sheet is being formed between two rolls, by means of grooves and ribs on one of the rolls, the other roll being plain, so as to leave the sheet thicker where the India rubber has entered the grooves than it is in the other parts of it, and thus make a sheet which is a fiat plane on one side, and has raised ribs or projections on the other side. The application of this idea, developed in the specification, is, to make these ribs or projections on that part of the sheet which is to be used to form the upper part of the shoe — that part which covers the top of the foot, and that part which surrounds the opening through which the foot enters the shoe. The advantage set forth is, that the ribs or projections thus made are of one substance with the rest of the material, and in homogeneous connection with it, and, therefore, better and more cheaply, uniformly, and perfectly made, than when made by pasting on strips by hand to form the ribs or projections. The patented invention is really complete when the sheet is made by the means described, ready to be made up into a shoe, and to be vulcanized. The process of making the sheet into the shoe and vulcanizing the shoe is no different from the process used to make a sheet into a shoe and vulcanize the shoe, when the ribs or projections are formed by pasting strips on the sheet by hand.

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Meyer v. Pritchard, 17 F. Cas. 246, 12 Blatchf. 101, 1 Ban. & A. 261, 1874 U.S. App. LEXIS 1861 (circtsdny 1874).

17 F. Cas. 246 (Meyer v. Pritchard) — published by Counsel Stack Legal Research, free access to 12M+ legal documents.

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11 F. 891 (D. Connecticut, 1881)