Twentieth century handbook for steam engineers and electricians, with questions and answers; a practical nontechnical treatise on the care and management of steam engines, boilers and electric machinery (1922)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 980
burn up the armature in short order—if the safety fusesdid not melt promptly. HYDRAULIC ELEVATORS. The mechanism of a hydraulic elevator consists of acylinder and piston, the piston being connected by oneor more piston rods to a cross-head which carries thesheaves over which run the lifting cables… … Fig. 3S9from street mains where sufficient pressure is available, iscaused to flow into^, and out of the cylinder, thus causing 946 Steam Engineering the piston to move from one end of the cylinder to theother, and back again. This motion of the piston andcross-head to and fro imparts motion to the…
