. Electric railway journal . THREE-IN-ONE CAR—FIG. 5, DETAIL OF LEVER ANL CAM ;FIG. 6, SIDE ELEVATION OF SNOW SCRAPER. THREE-IN-ONE CAR—FIG. 7. PLAN OF SNOW SCRAPER insulated the wire can be strung alive. As the wireinside the car is alive we made good use of this factby tapping off the trolley base, running a lead to acircuit breaker (1, Fig. 3) located on cross-braces ofthe tower guide frame, thence to a trolley wheel backof the 16-in. inside sheave. This wheel makes contactwith the wire coming off the reel. Thus by pulling downthe trolley pole and closing the circuit breaker the carcan be o
. Electric railway journal . THREE-IN-ONE CAR—FIG. 5, DETAIL OF LEVER ANL CAM ;FIG. 6, SIDE ELEVATION OF SNOW SCRAPER. THREE-IN-ONE CAR—FIG. 7. PLAN OF SNOW SCRAPER insulated the wire can be strung alive. As the wireinside the car is alive we made good use of this factby tapping off the trolley base, running a lead to acircuit breaker (1, Fig. 3) located on cross-braces ofthe tower guide frame, thence to a trolley wheel backof the 16-in. inside sheave. This wheel makes contactwith the wire coming off the reel. Thus by pulling downthe trolley pole and closing the circuit breaker the carcan be operated from the current drawn through thiswheel. This is very convenient in stringing trolleywire where the track is laid but where no trolley wirehas been placed. In addition to the trolley-stringing apparatus the carcontains a work bench, a hand drill-press, an emerywheel, a vise, bins for supplies, etc. This equipmentmakes the line force more or less independent of theshop and saves time waiting for drilling, etc. Three-in-One Car as a Snow Scraper In order to increase the usefulness of the car, whichwas no
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