Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. (1916)
American Technical Society · Chicago : American Technical Society · leaf 303
365 216 ELEVATORS … Fig. 172. Otis Elevator Sidewalk Lilt,Courtesy of Otis Elevator Compani/ 266 ELEVATORS 217 one-to-one type, and a powerful brake is ])rovided which is usedonly in emergencies. This brake is applied by means of a lever andweight, which are held out of service by a latch or bolt arranged to betripped…
Electrical engineering
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