Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . Y T vN. si. ?? --:??—-: - - pressing and finishing rollers }! F9, which are set by adjusting screws to a distance from one an-other equal to the thickness of the sheet or hand into which it is now desired that the gutta-perchashould l)i> compressed. After passing through between F1 and 1-, the sheet or baud is carriedback over the topmost of those rollers, I5, and then over the wooden drum U, to be wound on ataking-up roller v. In castit is desired to unite the gutta-percha with clo
Appletons' cyclopaedia of applied mechanics: a dictionary of mechanical engineering and the mechanical arts . Y T vN. si. ?? --:??—-: - - pressing and finishing rollers }! F9, which are set by adjusting screws to a distance from one an-other equal to the thickness of the sheet or hand into which it is now desired that the gutta-perchashould l)i> compressed. After passing through between F1 and 1-, the sheet or baud is carriedback over the topmost of those rollers, I5, and then over the wooden drum U, to be wound on ataking-up roller v. In castit is desired to unite the gutta-percha with cloth, for the manufacture of a water-proof fabric, the cloth is led in as shown at II, ami is firmly united to the pun by pres-sure between the roller )• and drum /. Alter passing through the carder previously described, thegutta-percha is kneaded and rolled into sheets. In order to cut the sheet gum into strips or bands of any shape, an ingenious machine devised by Charles Hancock in 1844 is used. It consists simply of two steel rolls grooved on their surface. The grooves on each roll are semicircular, so
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Keywords: ., bookauthorbenjaminpark18491922, bookcentury1800, bookdecade1880
