. The Street railway journal . actory service on ac-count of their extra resistance and capa-city, but the Lambert Schmidt Companymade a special study of this question, andsucceeded admirably in adapting its sys-tem to meet the special conditions. This equipment comprises a completetelephone exchange with switchboard,motor-generator charging sets, ringer sets,and storage batteries. There are atpresent about 300 telephones in use overthe lines of the Manhattan Railway. Atelephone is located in each passenger station and switch tower, and telephones are also provided forall of the offices, power
. The Street railway journal . actory service on ac-count of their extra resistance and capa-city, but the Lambert Schmidt Companymade a special study of this question, andsucceeded admirably in adapting its sys-tem to meet the special conditions. This equipment comprises a completetelephone exchange with switchboard,motor-generator charging sets, ringer sets,and storage batteries. There are atpresent about 300 telephones in use overthe lines of the Manhattan Railway. Atelephone is located in each passenger station and switch tower, and telephones are also provided forall of the offices, power house, sub-stations and car shops. The exchange is located at Ninety-Ninth Street and ThirdAvenue, in rooms specially built for it above the car shops ofthe company. Fig. 1 is a floor plan of these rooms, showing thegeneral arrangement of the apparatus. The main operating room, part of which is shown in Fig. 2,contains the telephone switchboard, the distributing frame, fuserack, relay and coil racks, and the wire chiefs FIG. -SWITCHBOARD IN MAIN OPERATING ROOM communicating plug circuits consisting of double supervisorylamp signals and combination ringing and listening cams. Thecords are colored white, brown or green, each cord being of acolor different from the adjacent ones. The switchboard is alsoprovided with a testing section on which a voltmeter and cordcircuits are placed for making ordinary line tests. The board is operated as follows: When subscriber takes Battery Room 69x 250 jXlODOOOOOO^ Motor GeneratorO Power RoomJ4ox 250 RelayFrame DistributingFrame Switch Board Operating Room 245x 299 ChiefOperators Desk Type-writerDesk Wire ChiefsDesk Store Room 19«x 21 9 Hall0 x 219 Closet i EleelriStove Operators Retiring Room13l0x 245 Toilet56x 610 Q FIG. 1.—PLAN OF TELEPHONE STATION, MANHATTAN ELEVATED Jtreel RAILWAY receiver off hook, the line lamp lights up as well as a largerlamp placed at the bottom of each set of line lamps. The op-erator answers by
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
