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 290
are six available speeds. These are capable offurther variation either by the use of high-speed or low-speed motorsor by varying the diameter of the hoisting drum, thus providing apossible variation of car speed of from 100 to 200 f. p. m. Brdurtion Gear. When a car speed of from 50 to (U) feet is… … Fig. loS. Internal t;ear Type of DriveCourtexy of lldiigliloii lilimlor and Machine Company has a ratio of about 4 to 1, a high speed motor may be used. Ofcourse when the reduction gear is used, the pinion is placed on thesame shaft as the worm gear and the drum runs in separate bearings.The…
Electrical engineering
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