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 978
ible shoes aref Hydraulic Elevators 949 provided, which slide freely against the guides. At thebottom the car is guided by jaws formed in a safety device,or safety^^ as it is termed. It is made of hard wood blocks,the dimensions varying from 4 inches thick by 11 incheswide in the smaller sizes, to… … Fig. 391 the opposite side with another wedge that can be forcedbetween the guide and the jaw to stop the car if one of thelifting ropes breaks, or the car attains an excessive velocityfrom any cause. By reference to Fig. 390, and also to Fig. 391, whichMiows one end of the safety device, its…
