Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. . on which rests the bearing plate of the car bolster, describedon page 7. A kingbolt passes through holes in the center of thepivot and bearing plates to obviate the danger of the pivot platebecoming unseated. The pivot plates form the main supports ofthe car body, which is balanced sidewi
Cyclopedia of applied electricity : a general reference work on direct-current generators and motors, storage batteries, electrochemistry, welding, electric wiring, meters, electric lighting, electric railways, power stations, switchboards, power transmission, alternating-current machinery, telegraphy, etc. . on which rests the bearing plate of the car bolster, describedon page 7. A kingbolt passes through holes in the center of thepivot and bearing plates to obviate the danger of the pivot platebecoming unseated. The pivot plates form the main supports ofthe car body, which is balanced sidewise upon them when the weightis evenly distributed. The pivot plate is mounted upon the bolster,which also carries the side bearings sh. These bearings prevent tip-ping of the car when the weight is unbalanced, in which case theyrub on the side bearings of the car-body bolster. The relative 110 ELECTRIC RAILWAYS 15 positions of the car-body and truck bolsters, and the center and theside bearings, as well as other important details, are shown in Fig. 12. In order to secure the greatest possible elasticity of car bodysupport, a double spring system is used in the M. C. B. truck. First, the truck bolster is carried upon a spring plank, , through elliptical leaf springs SS. Fig. 12 shows the bolster,. Fig. 11. Section of Bolster, Elliptical Springs and Spring Plank spring plank, and elliptical springs in more detail. The springplank hangs from the transom, by links iL, Fig. 11, which allowsa slight swing sidewise. The transom consists of two steel plates,separated by enough space to accommodate the bolster and withenough clearance to permit the bolster to move up and down asthe elliptical springs are compressed or released. The transom isrigidly attached to the frame.
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Keywords: ., bookauthoramericantechnicalsoci, bookcentury1900, bookdecade1910
