Ninety-fourth, to John M. Wimley, (Assignor to J. &. B. Shaw), June 12, 1855. An improvement in attaching gutta-percha soles to Boots and Shoes.
The melted gutta-percha is filled into mould A, up to the rim B, and the shoe placed thereon and firmly pressed down, until the sides of the shoe come in contact all around with the rim B. The gutta-percha is forced into, and through the holes purposely made, through the in-sole and edges of the upper.
The inventor says, I am aware that India-rubber, after being cut out, and shaped like a sole, has been united to the in-sole and upper, by means of an intermediating cement, caused to penetrate holes made in the in-sole and upper, but I do not claim this, nor do I claim uniting gutta-percha and leather for any other purpose than that of manufacturing boots and shoes as before described. But I claim manufacturing, or making boots and shoes, with the outer sole made entirely of gutta-percha, when the said outer soles are simultaneously formed and united to the upper and in-sole, by means of heat and pressure in a mould substantially as described and set forth.
Ninety-fifth, to S. T. Parmelee, New Brunswick, N. J., July 17, 1855. For improvement in attaching metallic heels to India-rubber soles.
The India-rubber is vulcanized after having been filled within the metallic casing. It could not be done after the vulcanizing, as vulcanized rubber cannot be rendered sufficiently soft. The inventor claims having the metallic rings or casings formed with recesses arranged in any proper way, so that the soft or elastic India-rubber mixed with the proper vulcanizing materials, may be fitted therein, and the rubber and rings or casings be permanently locked together, by subjecting the rubber to steam heat, and vulcanizing it when fitted within the rims or casings for the purpose as set forth.
Ninety-sixth, to John Arthur, and Evan Arthur, New Brunswick, N. J., July 24, 1855. For improvement in Machine for cutting boot and shoe uppers, soles, &c., from sheets of India-rubber.
After describing the machine the patentees set forth the following as their
Claim.—1st. The cutting or separation of India-rubber by placing it on a wet cloth, or other suitable moistened surface, and submitting it to the pressure of a heated die, having an edge of the form of the article to be cut, substantially as set forth.
2d. The combination of one or more reciprocating die-frames, each carrying a set of dies with a stove, and with carrying and pressing apparatus, to carry the sheet or piece of rubber, so that the dies by their reciprocating movement, may be carried into the stove to be heated, and then return to cut or stamp out the pattern or article from the piece as set forth.
3d. The method of raising the die-frames to carry the dies on their return movement towards the stove. Providing pins for the ends of the die-frames to strike against, to throw up the opposite ends carrying the dies.