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 342
as inFig. 182, a lock nut on thebolt is used to clamp thewhole firmly together. The washer in the cone gives a hard bearingsurface for the lock nut. The threaded portion of the bolt projectsbelow the hanger and on this the ear or clamp is screwed. Otherforms of hanger, involving the same general… … Fig. 182. Cross-Section of Hanger ShowingConstruction 299 202 ELECTRIC RAILWAYS Ears. Fig. 181 shows the construction of the cast copper earwhich is soldered to a round trolley wire. It is grooved on the underside and has small projecting ears to hold the trolley wire duringthe soldering process…
Electrical engineering
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