File:The street railway review (1891) (14574493438).jpg

Identifier: streetrailwayrev11amer (find matches)
Title: The street railway review
Year: 1891 (1890s)
Authors: American Street Railway Association Street Railway Accountants' Association of America American Railway, Mechanical, and Electrical Association
Subjects: Street-railroads
Publisher: Chicago : Street Railway Review Pub. Co
Contributing Library: Carnegie Library of Pittsburgh
Digitizing Sponsor: Lyrasis Members and Sloan Foundation

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rest in this connection. The standard car for the elevated service is built on rather novellines, the Sprague multiple-unit system of control, and the natureof the service, requiring unusual strength in the framing, withoutincreasing unduly the dead weight to be carried. The companys Passengers: Normal load (seated), 50 at 150 lbs. each 7.500 Maximum load (seated and standing) exclusive of plat-forms, 120 at 150 lbs. each 18,000 The car is mounted on two Baldwin Locomotive Works trucks,and the loads given in the foregoing table are divided equallybetween these two trucks. Each car is equipped with two Wcst-inghouse 150-h. p. motors, both of which are carried on one ofthe trucks, known as the motor truck, the other truck being merelya trailer. This arrangement of the motor and the distribution ofthe remaining weights, as shown on the plan, bring about 64 percent of the total weight of the car and its equipment upon thefoi^r driving wheels. The motor truck has 33-in. wheels; the trailer
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1—Typical Elevated Stati4—Sullivan Sq. Station.7-Standard Elevated Ca VIEWS ON BOSTON EI.KV.4TED.2—Work on the Structure.S-Interior—Sullivan Sq.8—Sullivan Sq. Shops. -Feeders and Walks.-Dudley St. Terminal.-Causeway and Charleslowc engineers first determined what were to be the weights of the catand the various parts of the equipment, and then decided upon theproper way to distribute these loads to obtain the best resultsfor tractive, operating and maintenance purposes. They thendesigned a car that would best carry these weights. A plan show-ing the distribution of the loads is given herewith, together with afloor plan and elevation of the standard car, of which 100 havenow been purchased.The weights as finally determined are as follows: Weight, Lb. Car body (light), including couplers and everything above the trucks, with the exception of brake rigging, car heaters, and the various reservoirs and apparatus shown on the plan.21,000 Poundation brake rigging, piping, hose coup

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