. The street railway review . mains always clean. An ordinary bushing wears rapidly on the outer edges and quicklycauses the wheel to wabble and leave the wire easily. The Ames-bury bushing wears so little that it never wabbles and the wheelkeeps the wire (according to the testimony of all motormen whohave used it) very much better than any wheel they have ever seen. Owing to the construction the current flows through the wheelfreely and without the arcing which is so common, thus saving thetrolley wire. The Amesbury wheel is especially designed for extra hard serviceand while new to the marke
. The street railway review . mains always clean. An ordinary bushing wears rapidly on the outer edges and quicklycauses the wheel to wabble and leave the wire easily. The Ames-bury bushing wears so little that it never wabbles and the wheelkeeps the wire (according to the testimony of all motormen whohave used it) very much better than any wheel they have ever seen. Owing to the construction the current flows through the wheelfreely and without the arcing which is so common, thus saving thetrolley wire. The Amesbury wheel is especially designed for extra hard serviceand while new to the market has been tested for months in severeservice. The first road to complete tests, one of the most impor-tant and well equipped in New England, has adopted this wheel,as it saved this road one-third in cost, not reckoning the cost of oiland labor necessary in the use of ordinary wheels. dium Economic some improvements have been made in the ar-rangement of the heaters in the cars which are believed to be ofsubstantial FIG. 1. nc. 2. The wheel is made to fit the ordinary harp and no change orspecial equipment of any kind is required in connection with its sizes are manufactured—the regular 4-in. size, a s-in. wheel •with either the standard ^-in. pin or a fg-in. pin and a 6-in. wheelwith 3-in. bearing for either size pin. The 6-in. wheel is speciallydesigned for extra high speed cars. The Amesbury wheel is manufactured by the Climax Igniter Co.,all parts being constructed by it in its factory at Amesbury, Mass. Fig. I shows a wheel and pin after 33 days service under condi-tions so severe that the wheels formerly used were changed everyday, and during the 33 days the wheel illustrated was in use 32 ofthe other type were worn out in similar service. The wear of thebushing was .002 in. Fig. 2 is a section of the 4-in. wheel. A New Electric Car Heater. What is known to the trade as the Radium Economic carheater has been developed after extended experiments, a
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
