. Electric locomotive haulage in and about mines . PLATES 24 & 25. r. PLATE 26. 17 circuit breaker is probably the best in that its use eliminatesthe inconvenience of having to fit new fuses into the boxes whena fuse burns out. It is however more expensive, and where cost isan important consideration, cartridge fuses may be used. rrids,circuit breakers and fuses are illustrated in Plate 26. Trolley poles are generally made to fit the local condi-tions under which the locomotive is to operate. However all trol-leys are similar to the types shown in Plate 26, these being thoseused by three of th
. Electric locomotive haulage in and about mines . PLATES 24 & 25. r. PLATE 26. 17 circuit breaker is probably the best in that its use eliminatesthe inconvenience of having to fit new fuses into the boxes whena fuse burns out. It is however more expensive, and where cost isan important consideration, cartridge fuses may be used. rrids,circuit breakers and fuses are illustrated in Plate 26. Trolley poles are generally made to fit the local condi-tions under which the locomotive is to operate. However all trol-leys are similar to the types shown in Plate 26, these being thoseused by three of the large manufacturers of electric locomotives,| namely, the General Electric Co., the Baldwin ^cstinghouse Co.,and the Jeffrey Co. The trolley wheel is mounted in a swivel harpwhich permits it to allign itself with the trolley wire, irrespec-tive of the direction of the pole. The pole is made of hard woodand Vie lower end is inserted in a swiveled base which fits intosockets on either side of the locomotive. The force of the compress-ed spiral spring is so applied
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Keywords: ., bookcentury1900, bookdecade1910, booksubjecttheses, bookyear1913
