Twentieth century hand-book for steam engineers and electricians with questions and answers; a practical non-technical treatise .. (1913)
Swingle, Calvin Franklin, 1846- [from old catalog] · Chicago, F. J. Drake & company · leaf 974
n up the arniature 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… … Pig. 3S9 from 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…
