Patent Abridgment 1859 |
2943 |
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2943. Spilsbury, F. G. Dec. 24.
Transparent and translucent materials are made by treating muslin, tissue paper, cardboard, skins, &c. with a solution of potassium or sodium silicate, or both, either alone or mixed with potassium or sodium phosphate, borate, or tungstate. For example, the paper is preferably first treated with oil, or a strong solution of fat or resin soap, or a solution of resinous matter in spirit or other liquid, and then with the soluble glass. Or a sheet of muslin may be placed on the paper, and after treating both, they are dried and pressed into one fabric. A sheet of stamped, pierced, or perforated paper may also be backed by one which has been treated as above. The material may be used as a substitute for wire window blinds, as tracing paper, for candle and like shades, as the casing for holding tallow &c. in the manufacture of shadowless night-lights, and for decorative purposes. In the Provisional Specification, leather, and silk, net, and hair fabrics are stated to be treated similarly, and used for en-casing candles, and for making lamps to contain tallow, oil, &c. |
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