The Boot and Shoe Manufacturers' Assistant and Guide. / Containing a Brief History of the Trade. History of India-rubber and Gutta-percha, and Their Application to the Manufacture of Boots and Shoes. Full Instructions in the Art, With Diagrams and Scales, Etc., Etc. Vulcanization and Sulphurization, English and American Patents. With an Elaborate Treatise on Tanning.

by Unknown

Claim.—The use of lime in combination with the rubber, gutta-percha, and shellac solutions in the composition, as set forth.

The solution of rubber, gum-shellac, gutta-percha, and the naptha, are to be warmed to blood heat, then the “puzzolan” to be mixed therewith, and immediately to be applied to the roof and rubbed smooth; then the smalt is to be sifted on.

One hundred and second, to Charles Rice and Sylvanus H. Whorf, Nov. 13, 1855. For improvement in lasting and applying soles to shoes.

The sole and the upper are first placed together upon a last A, the upper being made to overlap the outer surface of the in-sole, and affixed thereto by cement. The whole being thus prepared, is next placed within the clamping bed, B, and the parts of the latter closed; next the platten of the press is to be depressed, so as to carry the punches.

Claim.—The holding clamp, B, and last, A, as used together, and in connection with the pressing or punching mechanism, or both, for the purpose of fixing soles to shoes by cement, substantially as set forth.

One hundred and third, to Charles Rice and Sylvanus H. Whorf, Nov. 20, 1855. For improved machine for preparing leather for the manufacture of boots and shoes.

Claim.—The above described mechanism, or machine, for preparing leather for the manufacture of boots and shoes, the whole being arranged and made to operate, substantially in the manner, and for the purpose set forth.

One hundred and fourth, to H. G. Tyer and John Helm, New Brunswick, N. J., Jan. 2, 1855. For improvement in processes for making India-rubber cloth.

This improvement consists in subjecting the cloth, which has been previously coated with a layer of India-rubber, suddenly to a degree of heat from 140° to 180° Fah. By this sudden application of heat while the goods are still in a green, undried state, the camphene used in the cement evaporating very rapidly, and leaves the gum punctured with minute orifices, which are too small to allow the passage of globules of water through them, but are large enough for the passage of air through them.

Claim.—The peculiar mode, so described, of preparing the uppers of boots and shoes.