water. two large corporations: the Metropolitan Traction elastic. A study of such work would exceed the limits Before the car starts on its run, its air reservoirs are Company and the Third Avenue Railroad Company, of this article. We shall add that the tests upon trac- both of New York City; the… … THE HARDIE COMPRESSED AIR MOTOR CAR. of a flexible tube connecting with the power house sup- Hoadley motor, and the latter adopting the system in- tions upon which we operate, while the tests upon ply, and steam is admitted to the heater until its con- vented by Mr. R. Hardie. crushing give more…
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