File:Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition (1906) (14738399136).jpg

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Identifier: reportofelectric01loui (find matches)
Title: Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition
Year: 1906 (1900s)
Authors: Louisiana Purchase Exposition (1904 : Saint Louis, Mo.). Electric Railway Test Commission Norris, Henry Hutchinson, 1873-1940, ed Swenson, Bernard Victor, 1872- ed
Subjects: Electric railroads
Publisher: New York, McGraw
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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ade. As stated elsewhere, this lever was constructed for thepurpose of obtaining a calibration of the dynamometers bymeans of direct pressure and tension measurements. DETAILED DESCRIPTION OF THE CAR. The Driving Equipment. The Flat Car. — The foundation of the dynamometer car wasa pressed steel flat car of 100,000 lbs. capacity, loaned to theCommission by the Pressed Steel Car Company of Pittsburgh,Pa. The construction of this car is illustrated in Fig. 177. It consists essentially of a pair of extra heavy center sills,connected above by a steel plate firmly riveted to the sills. Thesills are braced by means of angles riveted to the bottom edge,and they are cross-connected by Tee bars. The side sills areof the dished pattern, and these were also stiffened by means ofangles riveted at the top and bottom. All of the sills were con-nected by cross angle-bars spaced about 3 ft. apart. The bol-sters were extra heavy, and were located about 5 ft. from 502 ELECTRIC RAILWAY TEST COMMISSION
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THE TEST CAR (LOUISIANA 503 the ends of the flat car body. Ordinary M. C. B. couplers weresupplied, but no use was made of them in the tests except to sup-port two specially constructed bumpers described below. Apressed steel body center plate was located in the middle of eachbolster. Longitudinal stringers supported the heavy floor. Theordinary trucks and brake rigging of the car were removed, andonly the parts described were employed in the air resistancetests. In order to prevent injury to other cars with which the testcar might come in collision, tw^o special bumpers were con-structed. These bumpers consisted of steel bars five inches byone inch, and bent into such a form as to furnish fiat surfaces atthe standard coupler level, and upon these surfaces were moimtedheavy oak blocks securely bolted to the bars. At one end, thebar was mounted on the coupler and secured thereto by theregular coupler pin. At the other end, it was bolted to the sup-porting framework. By this mounting a

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Louisiana Purchase Exposition (1904 : Saint Louis, Mo.). Electric Railway Test Commission; Norris, Henry Hutchinson, 1873-1940, ed;

Swenson, Bernard Victor, 1872- ed
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27 July 2014
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