. The Street railway journal . ins. in diameter and 175 ft. long; STREET RAILWAY JOURNAL. [Vol. XXII. No. 9. flanges are Ij4 his. thick, of riveted pipe. There is an gate-valve in the center of the main line, dividing thetwo sections, and ten 8-in. Lunkenheimer check valves, one foreach boiler. At the top of each boiler is a Pearson type auto-matic valve. The main header has two 18-in. x 30-in. expansionjoints, furnished by the Taunton Locomotive ManufacturingCompany. Above the main header is an auxiliary header,7 ins. in diameter, which is provided with a number of valvesso that i
. The Street railway journal . ins. in diameter and 175 ft. long; STREET RAILWAY JOURNAL. [Vol. XXII. No. 9. flanges are Ij4 his. thick, of riveted pipe. There is an gate-valve in the center of the main line, dividing thetwo sections, and ten 8-in. Lunkenheimer check valves, one foreach boiler. At the top of each boiler is a Pearson type auto-matic valve. The main header has two 18-in. x 30-in. expansionjoints, furnished by the Taunton Locomotive ManufacturingCompany. Above the main header is an auxiliary header,7 ins. in diameter, which is provided with a number of valvesso that in case of accident to the main header any combinationof boilers may be used. All steam piping has long bends in-stead of angles, and all pipes are covered with 3 ins. of ROOM The engines, three in number, are of the Allis-Chalmersvertical cross-compound condensing type, with cylinders of28-in. x 60-in. x 48-in. stroke. The cylinders have water reliefvalves in each end and are provided with the Reynolds-Corliss. PUMP ROOM automatic valve gear. The steam exhaust valves are operatedby separate eccentrics providing for automatic cut off. Themain journals are 22 ins. in diameter and 38 ins. long, and theshaft is 26 ins. in diameter in the center and weighs 45,000 bearings and cross-head slides have water jacketed framesof the Reynolds circular type. The fly-wheel is 20 ft. indiameter, has a 20^-in. face, and weighs 100,000 lbs. Theengine has an auxiliary governor which shuts off the steamwhen the speed runs above 95 r. p. m., the normal speed being94 r. p. m. There is also an electrical speed controller in con-nection with the governor, which is used in apparatus consists of a motor mounted on a screw on theregulator column, and is so adjusted that its movement may becontrolled from the switchboard. By the operation of thisswitch the motor may be made to move backward or forwardalong the screw, thus increasing or decreasing the weight onthe
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
