. The Street railway journal . er. This breaker consists of a sliding con-tact, held in place by springs and mounted on the car the car moves, the circuit is broken by the arm on which thecontact is mounted, striking wire trippers located at variousdistances apart. The speed is indicated on a voltmeter con-nected to an Apple ignition dynamo, manufactured by the Day-ton Electrical Manufacturing Company, which is driven fromthe axle. In order to preserve an absolutely uniform fieldstrength, this dynamo is excited by storage-battery current bours duration. The schedules were all of the s
. The Street railway journal . er. This breaker consists of a sliding con-tact, held in place by springs and mounted on the car the car moves, the circuit is broken by the arm on which thecontact is mounted, striking wire trippers located at variousdistances apart. The speed is indicated on a voltmeter con-nected to an Apple ignition dynamo, manufactured by the Day-ton Electrical Manufacturing Company, which is driven fromthe axle. In order to preserve an absolutely uniform fieldstrength, this dynamo is excited by storage-battery current bours duration. The schedules were all of the same durationfrom start to start, and differ only in the maximum speed at-tained and the coasting distance. The distance run was 825ft., giving stops per mile. The average time from start tostart of each run was fifty-two seconds, corresponding to aschedule speed of about 11 miles per hour. During these runsthe indicating instruments were read every five seconds. TheRover speed-recorder record was run back and forth between. FIG. 1.—SINGLE-TRUCK, SEMI-CONVERTIBLE CAR USED FORELECTRIC RAILWAY TESTS the two points marking the ends of the run, and thus gave theaverage curve direct. In addition to the heat runs, a series of acceleration andbraking runs were made. The braking curves were taken forhand and magnetic braking, and over braking distances of from45 ft. to 150 ft., from a maximum speed of miles per hour.
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
