. Electric railway journal . air gages and a standard shipschronometer. The speedometer gives a continuous indication of thespeed of the car and also shows trip and total instrument was manufactured specially for car useand in appearance is similar to an automobile speedometer,except that it is larger. It is driven from the tread of oneof the forward car wheels. A 5-in. steel wheel supportedby a tension arm bolted to the upper truck frame is heldagainst the wheel tread by a coil spring. This frictionwheel drives a flexible shaft which extends up through thecar floor to the speedo
. Electric railway journal . air gages and a standard shipschronometer. The speedometer gives a continuous indication of thespeed of the car and also shows trip and total instrument was manufactured specially for car useand in appearance is similar to an automobile speedometer,except that it is larger. It is driven from the tread of oneof the forward car wheels. A 5-in. steel wheel supportedby a tension arm bolted to the upper truck frame is heldagainst the wheel tread by a coil spring. This frictionwheel drives a flexible shaft which extends up through thecar floor to the speedometer, which is mounted with theother instruments on the mahogany panels forming themotormans inclosure. The instrument records the speedand total distance moved in either direction which the carmay be run. At each junction point on the journey a record was madeof the miles run on the trip from the last junction point,the total elapsed time and kw-hours consumed. Thesedata are given in the table on page 395. The energv con-. Illinois Traction Office Car—On Siding at New Ross sumed on each road was read to the nearest 10 table shows the continuous route of the car fromSt. Louis, Mo., to Rockport, a suburb of Cleveland, and re-turn via Columbus and Lima, and Indianapolis to Peoria,111. This round-trip mileage was miles, in additionto which side trips totaling miles were made. Thetotal journey thus was miles. Of this distance miles were run on the steam road, making the total dis-ance via electric railways miles. Deducting the sidetrips from this, there remains miles, the distancetraveled on electric railways in making the round trip with-out side trips. The average speed for the continuous jour-ney was The energy consumption on the elec-tric railway mileage was kw-hours per car the weight of the car with load as 93,000 lb., thewatt-hours per ton-mile were In connection with the foregoi
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