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 1007
-tight, as has already been explained (see Fig.396), and its throttling action begins gradually. Should the car be stopped too suddenly on the up-trip,the water in the lower end of cylinder E will be forcedthrough valve d at the bottom of pipe G, and the mo-mentum of the moving parts will be… … Fig. 400 Hydraulic Elevators 973 draulic elevator^ with running rope or standing rope con-trol. Other methods of control besides those already de-scribed are in use, mainly in private dwellings and otherplaces where an operator is not employed. These consistof magnetic controllers for operating the…
