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 381
s of heatand cold. The reason that con-traction and expansion do notwork havoc^on track with weldedjoints is probably that the rails have enough elasticity to providefor the contraction and expansion without breaking. It is foundthat the best results are secured by welding rail joints during… … Fig. 228. Wolhaupter Joint 336 ELECTRIC RAILWAYS 239 serious bending of the rails; whereas occasionally, if the track iswelded in very hot weather, the contraction in winter will causethe joint to break. Cast-Welded Joints. The process of cast-welding joints con-sists in pouring very hot cast iron…
Electrical engineering
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