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 977
tors are equipped. Another valuable device is the speed limit, which usually ■consists of stops mounted at some convenient point in the hatchway, and set above and below balls m and m, so as to limit the distance through which the latter can be moved. 948 Steam Engineering In some cases additional… … FiG. 390 mentally when the elevator is installed. The movement of L,the car is kept steady by guides M, M, Pig. 389. In the Lj•construction shown in Pig. 389 these guides are made of I \hard wood. At the top of the car adjustible shoes aref Hydraulic Elevators 949 provided, which slide freely…
