. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . The upper or top ladder isheld in jiosition not oidy by the ele-vating chain, but by two sujjportinghooks, winch automatically clasp therounds, and also by self-acting l)rakes,so 1 hat in event of breakage of thechain the ladder can not slide example of the third class of fire-escape is given in Fig. S. The low-ering rope is fastened securely to thewall, usually near the passes around a fixe
. Modern mechanism, exhibiting the latest progress in machines, motors, and the transmission of power, being a supplementary volume to Appletons' cyclopaedia of applied mechanics . The upper or top ladder isheld in jiosition not oidy by the ele-vating chain, but by two sujjportinghooks, winch automatically clasp therounds, and also by self-acting l)rakes,so 1 hat in event of breakage of thechain the ladder can not slide example of the third class of fire-escape is given in Fig. S. The low-ering rope is fastened securely to thewall, usually near the passes around a fixed bar in thelowering device and tlien betweenthe jiarts of a brake or clamp, whichis provided with a hand-lever. Abelt or sling, as shown in the figure,is connected to the lowering device, and supports the person, who, by manipulating the brake, allows himself to slide down the lowering rope as rajiidly or slowly as may be desired. FLANGINli-MACHINES. A variety of new forms are presented. The Davis Flangi)u/-JIachmf.—Fig. 1 represents a lioih-r-head flanging macliine, built by I. B. Davis & Son, of Hartford, Conn., designed for flanging heads of any size from 38 to 96. Fig. a.—Fire-escape.
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Keywords: ., bookcentury1800, bookdecade189, booksubjectmechanicalengineering
