The Street railway journal (1902) (14574337590)

Identifier: streetrailwayjo201902newy (find matches)
Title: The Street railway journal
Year: 1884 (1880s)
Authors:
Subjects: Street-railroads Electric railroads Transportation
Publisher: New York : McGraw Pub. Co.
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries



Text Appearing Before Image:
sell patent single-acting airpumps are also attached to each engine, and each of theseengines, including the two described later, are equippedwith Hartnells patent governors. Besides the above units, situated in the far corner of the FIG. 5.—PARSONS TURBO-GENERATORS
Text Appearing After Image:
FIG. 4. -ROPE-DRIVEN DIRECT-CURRENT GENERATOR AND ALTERNATORS WITHHORIZONTAL ENGINES building, and shown in Fig. 5, are two turbo-generatorssupplied by C. A. Parsons & Co., of Newcastle-on-Tyne,and which are used both for tramway and lighting pur-poses. Each unit consists of a steam turbine coupled di- the same level as the condenser, and are driven by worm-gearing from the turbine shaft, making the whole plantself-contained. The normal voltage is 500 volts, and the machines are(fitted with the Parsons electrical solenoid i governor, which maintains a constantvoltage on the supply mains. Mechani-cal safety governors are also fitted for thepurpose of coming into action when tin-speed rises to a certain height and entirelycut off the steam. The plants are designedfor a steam pressure, at the stop valve, of135 lbs., and are complete with oil coolers,oil trays, etc. We now come to the most importantpart of the new work which the HalifaxCorporation has been carrying out, re-ferred to a