International Library of Technology · Scranton, International Textbook Co. · leaf 180
otor should not be less than 3^ or IvIOTOP. DESIGN. 2555 4 inches above the surface of the rail; otherwise, there willbe danger of the motor striking stones which may belying on the track. These motors must also be water anddust proof, conditions which are accomplished in practiceby using the… … Fig. 1429. the parts. Fig. 1430 shows the same motor with the lowerhalf of the field svyung down to allow access to the armature.The field yoke is made in halves, and-each half is providedwith two salient pole-pieces P, P projecting radially inwards.Nearly all modern railway motors are of the…
Electrical engineering
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