. Electric railway journal . BALANCED DOOR-OPERATING MECHANISM — STEPS,COUNTERWEIGHT AND LEVER CONNECTIONS requisite was obtained by providing a counterweight onthe step sufficient to make the mechanism pass throughthe full cycle of movements after the operating leverhad been released from the locked position. The useof the counterweighted mechanism also made it possibleto employ lighter rods and to simplify the operating lever at the conductors end of the caris at his stand in the center of the bulkhead. This leveris not permanently fastened to the operating mech-anism, but li
. Electric railway journal . BALANCED DOOR-OPERATING MECHANISM — STEPS,COUNTERWEIGHT AND LEVER CONNECTIONS requisite was obtained by providing a counterweight onthe step sufficient to make the mechanism pass throughthe full cycle of movements after the operating leverhad been released from the locked position. The useof the counterweighted mechanism also made it possibleto employ lighter rods and to simplify the operating lever at the conductors end of the caris at his stand in the center of the bulkhead. This leveris not permanently fastened to the operating mech-anism, but like the motormans controller and reversehandles, may be shifted from one end of the car to theother. The counterweight is 17 ounces lighter thanthe weight of the step, and is so mounted as to permitaccurate adjustment. A view of the step and counter-. ATTACHING SIGNAL WIRES TO THIRD RAIL—FIGS. 1, 2 AND 3, SHOWING DIFFERENT ATTACHMENTS last plan tried. In it the signal wire was tied to theporcelain insulator as before, but the insulator was madea part of a clamp fitting around one flange of the third-rail and fastened to it by means of a set screw. Suchclamps can be purchased from stock and, while they aremore expensive than the other fittings described, yetthey can be put on the rail very easily and cheaply, mak-ing a job that is not only strong and permanent, butgood-looking as well. weight is shown herewith. The step-operating leveris attached to the base of the rod which passes upthrough the floor to the conductors stand, and the door-operating lever is attached to a crank at the top of thisrod. Both the steps and door are locked in position byforcing the cranks and levers beyond dead center. The door-operating mechanism beside the motormansposition is also of the counterweighted type. The stepshown is operated by the lever at
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyorkmcgrawhillp
