. Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition . as placed in position in the car, the con-tour of its surface was continued downward with sheets of thinsteel to the top of the flat car floor, to prevent currents of airfrom circulating underneath it and introducing errors into themeasurements. The parabolic wedge vestibule was produced by buildinga wooden framework out from the parabolic vestibule and cov-ering it with sheet steel, as shown in Figs. 174 and 175. Theroof was molded to conform with the general contour of the 514 ELECTRIC RA
. Report of the Electric Railway Test Commission to the president of the Louisiana Purchase Exposition . as placed in position in the car, the con-tour of its surface was continued downward with sheets of thinsteel to the top of the flat car floor, to prevent currents of airfrom circulating underneath it and introducing errors into themeasurements. The parabolic wedge vestibule was produced by buildinga wooden framework out from the parabolic vestibule and cov-ering it with sheet steel, as shown in Figs. 174 and 175. Theroof was molded to conform with the general contour of the 514 ELECTRIC RAILWAY TEST COMMISSION cross-section of the car, and when this was equipped, the vesti-bule weighed approximately 2150 lbs. including the guide windows were provided on the sides of the wedge in frontof the curved glass of the parabolic vestibule. The standard interurban vestibule was one such as is usu-ally constructed for use with this type of car body, and was alsosupplied by the J. G. Brill Company. This vestibule had a sec-tion as shown in Figs. 188 and 189, and it weighed 1230 pounds. >^|t:n=;^ Ivm-I-^^:!^;:^ Fig. 187. —Sketch Showing Details of Mounting Chapman Double-Ball Bearings. when complete and hanging on the dynamometer frame. Thisvestibule had a curved front with a radius of curvature of 5Jft., and the front was equipped with the usual sashes. Doubledoors, 2 ft. 10 in. in width, closed the openings at the roof of this vestibule conformed in outhne to the contourof the car body, and was supplied with a standard hood of thePullman type. The flat vestibule consisted of a light framework covered withplanking, and having a form corresponding to the cross-sectionof the car as shown in Fig. 183. It weighed 730 lbs. when THE TEST CAR LOUISIANA 515 equipped with window-sashes and the devices for hanging itfrom the dynamometer frame. All of the vestibules, when hanging upon the dynamometerframe, were connected with the car body by a strip of light
Size: 1848px × 1353px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, bookidreportofelec, bookyear1906
