. American engineer and railroad journal . the transom lips over the top of the side frame, thus takingtbe strain off the bolts, which secure it to the side frame, andreducing the number of bolts required to a minimum. Thetransom at the centre is just high enough to take the motornose (the motor application is not shown on the engravings),which rests on a case-hardened plate, held in place by thesame bolts which secure the strap for the motor cast-steel bolster is of I section and for a short distance at the middle and ends is of a double box section. No chafingplates are used, but th
. American engineer and railroad journal . the transom lips over the top of the side frame, thus takingtbe strain off the bolts, which secure it to the side frame, andreducing the number of bolts required to a minimum. Thetransom at the centre is just high enough to take the motornose (the motor application is not shown on the engravings),which rests on a case-hardened plate, held in place by thesame bolts which secure the strap for the motor cast-steel bolster is of I section and for a short distance at the middle and ends is of a double box section. No chafingplates are used, but the wearing surfaces at both the middleand ends of the bolsters are very large, so that the wear willprobably be very slight, and as these surfaces are compara-tively deep and the clearance between the bolster and thetransoms is only \L in., there will be no tendency for thebolster to cant or bind. The bolster is 11% ins. deep at thecentre and 6 ins. at the ends, except where it is raised to take 1G8 AMERICAN ENGINEER AND RAILROAD TRAILER TRUCK FOR NEW YORK CENTRAL ELECTRIC SERVICE. the Norwood side bearings. The centre plates are cast in-tegral with the bolster and the wearing surfaces are ma-chined. The spring plank is suspended from the brackets on thetransoms by 1 by iy2 in. steel bars. The ends of the springplank are steel castings, which are connected by two 2% by2% by % in. angles, to which they are riveted. Trunnions arecast on these castings and are fitted with case-hardenedsleeves, which are pressed on. The swing links slip over thesesleeves. Because of the small amount of clearance it is im-possible to extend the trunnions far enough to take a key andlugs are therefore forged on the links and they are tied to-gether by a 1-in. bolt, as shown. The spring bands fit intorecesses in the spring plank and bolster castings. Symington journal boxes are used. The lower endsof the pedestal jaws are tied together by binders similar order to better withstand the thrust o
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
