File:Electric railway journal (1914) (14781307043).jpg

Identifier: electricrailway431914newy (find matches)
Title: Electric railway journal
Year: 1908 (1900s)
Authors:
Subjects: Electric railroads
Publisher: (New York) McGraw Hill Pub. Co
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

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Text Appearing Before Image:
f 90 lb. per square inch is used track switches at Kendall and Quincy Squares. Answeremergency calls for light or signal trouble. Second trick, 6 a. m. to 3 p. m.—Inspect and keep oiledall signal apparatus between Harvard Square and ParkStreet, covering twenty-four straight electric signals,three electro-pneumatics on bridge and twenty-seven au-tomatic stops. Inspect pumps in chambers daily andanswer emergency calls. Third trick, 3 p. m. to midnight.—Inspect daily andkeep cleaned and oiled all pumping apparatus. Inspectand clean ejectors at Harvard, Central and KendallSquare. Answer light and signal emergency calls. Allmaintainers keep tower P, at Harvard Square, informedas to whereabouts. DETAILS OF MAINTENANCE WORK The maintenance work includes the inspection andoiling of ten pumps, including switchboards and auto-matic starters controlled by floats, replacement of work-out foot valves, repairing burned-out or defective con-nections, rheostats, lamps, fuses, etc. There are about
Text Appearing After Image:
Boston Elevated Signal Maintenance—Block Signal with Relay Box, Transformers, etc.—Motor-Generator Set for Signal Service—Repeaters and Relays in Signal Tower in the operation of semaphore arms and switchesthroughout the system. Single maintainers on the ele-vated lines and in the Washington Street tunnel work inthree daily shifts, viz., 12 midnight to 9 a. m., 9 a. m.to 6 p. m. and 3 p. m. to 12 midnight. Those in theCambridge subway work from 12 midnight to 9 a. m.,from 6 a. m. to 3 p. m., and from 3 p. m. to midnight.The following outline of the distribution of maintenancework on signal equipment in the Cambridge subway il-lustrates the character of the duties required: First trick, midnight-9 a. m.—Inspect all lamps insubway inverts, Eliot Square shop and yard, with neces-sary replacements. Look after cleaning of all electriclighting switchboards (sixty-three in number). Seethat automatic throw-over switches supplying emer-gency subway lighting current are working properly

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