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 998
xcessive pressuremay be so great as to prevent the car from attaining itsfull velocity. If a hard packing is used, and this is forcedinto place dry and very tight, the chances are that when itbecomes well soaked it will expand enough to burst thecylinder. Bursting hydraulic-elevator cylinders is… … Fig. 398 964 Steam Engineering Eeferring to Fig. 389, it will be noticed that there aretwo piston rods, E. This construction was adopted in the early days of hy-draulic elevators partially to increase the safety of theapparatus, but principally to prevent the traveling sheaveB from twisting around.…
