Appleton's dictionary of machines, mechanics, engine-work, and engineering : illustrated with four thousand engravings on wood ; in two volumes (1873)
D. Appleton and Company · New York : D. Appleton and Co. · leaf 432
r rollers and the cloth to be imprinted therewith. A torrent of sparks I have noticedto issue from the compressed India-rubber, too intense to be sustained by the knuckles, held near them,without absolute pain. Indeed, the process of printing with this material was finally suspended fromthe danger… … Frictional electrical machines w-ere first constructed to be operated by the successive approximations orcontacts of the parts of the revolving glass cylinder A, against the parts of a rubber attached to a hol-low metallic cylinder F, mounted on a pillar of glass. This pillar is sustained on a…
Mechanical engineering · Mechanics · Engineering
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