Seventy-sixth, to H. L. Novis, (Assigner to S. T. Armstrong) New York City, July 26, 1853. Patented in England, February 24, 1853, and in France, March 13, 1853. For preserving India-rubber in the liquid state.
Mr. Novis claims the compound, consisting of the native juice of the caoutchouc, with aqua ammonia or the equivalent thereof, as set forth, when said ammonia or its equivalent is mixed with said juice of the caoutchouc in a liquid state, by means of which, the juice above named is preserved for a great length of time, and can be manufactured at less expense than the India-rubber of commerce, which is mixed with other foreign substances.
And I also claim the solid elastic article when manufactured from the said composition of matter as described.
Seventy-seventh, to John Chilcott, and Robert Snell, New York, September 13, 1853. For improvement in the manufacture of Boots and Shoes.
The sole is made of three parts, viz., the India-rubber sole, a leather lining, and a leather border, or edge. The India-rubber sole is made smaller than the sole it is intended to cover, and its edges are bevelled off thin all around; the leather lining is of the full size of the bottom of the boot or shoe, and united to the upper side of the India-rubber sole by water-proof adhesive material, leaving a margin of the lining all around the edge of the India-rubber sole; the leather border or edge is of the same thickness as the India-rubber sole, and overlaps the bevelled portion of it, and is also bevelled so thin that its outer face will be level with the outer face of the India-rubber. A solid sole is thus made of uniform thickness, which may be secured to a boot or shoe, by sewing, cementing, or pegging.
Claim connecting the whole or any portion of the sole of a boot or shoe, substantially as described, of India-rubber, with its inside or edges covered and protected by leather, which is united with it by any water-proof cement, with or without stitching, and forms a hard, firm leather edge.
Seventy-eighth, to Charles Goodyear, New York, October 11, 1853. For improvement in coating metals with gutta-percha.
The nature of this invention consists in the application of “caoutchouc or gutta-percha” when mixed with pulverized sulphur (six or eight ounces of sulphur to one pound of gum) to the surface of metal. The article covered is subjected to a high degree of heat, from 260° to 300° Fahrenheit, from three to seven hours. The hard compound covering may then be polished and varnished.
Claim.—The art or method of coating articles composed wholly or in part of metal with compound of India-rubber or gutta-percha, and subjecting the same to a high degree of artificial heat, or the process of vulcanization, substantially as specified.
Seventy-ninth, to L. Otto P. Meyer, Newton, Conn., December 20, 1853. For improvement in the manufacture of caoutchouc or other vulcanizable gums.