. Electric railway journal . front end of theplow. The rod passes up through the bumper and isbent over at the upper end to form a bearing for acam-ended lever, by means of which the plow nose canbe raised and lowered. At the heel chains are pro-vided for raising the rear of the plow when it is outof use. The chains are hung over split hooks. Three-in-One Car as an Arc-Welding Outfit For the purpose of using the car as a welding outfitsuitable resistance boxes were provided, a switchboardwith measuring instruments was installed and provisionwas made for the necessary signals between the weldin
. Electric railway journal . front end of theplow. The rod passes up through the bumper and isbent over at the upper end to form a bearing for acam-ended lever, by means of which the plow nose canbe raised and lowered. At the heel chains are pro-vided for raising the rear of the plow when it is outof use. The chains are hung over split hooks. Three-in-One Car as an Arc-Welding Outfit For the purpose of using the car as a welding outfitsuitable resistance boxes were provided, a switchboardwith measuring instruments was installed and provisionwas made for the necessary signals between the weldingmen and the switchboard operators. There are four resistance boxes made up of regularcar resistance grids, each measuring 42 in. in are mounted on two 2-in. by 4-in. uprights run-ning from the floor to the roof of the car, three beingplaced horizontally and one vertically. By the use ofthis method of mounting, a space 37-in. by 52-in. by26-in. only was required. Current for welding is taken from the trolley base. through a fuse box from which the fuse is removedwhen the welder is not in use. From the fuse box theline runs to a circuit-breaker on the switchboard, thenthrough two operating switches to the resistance boxesand the ammeter and through a conduit out over thetruck to the outside of the car. The ammeter referred to has a capacity of 400 amp,and a 700-voltmeter is also supplied on the the board are also a signal bell operated by a pushbutton on the handle of the welding tool, and signallamps for indicating the condition of the circuit. The terminal of the wire from the trolley has sweatedon it one-half of a two-way clasp connector, and the leadwire connecting to the welding tool has the other halfof the connector sweated on it. The ground wire fromthe truck of the car is similarly equipped. In using the car in welding, the welding tool is con-nected up to the terminals either on the positive or thenegative side as is desired, and the workman
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
