. Canadian transportation & distribution management. d a sec-tion of % in. plate, 44% ins. long, theedges of which are flanged, and secured toedges of which are flanged, and secured to thewebs of the large I beam by twenty two %in. rivets on each flange. To the under sideof tliis plate is secured the dynamometerdraft rigging, nesting between two 12 , the backs of which are 14% Three under brackets across betweenthe lower flanges of the large I beams sup-port the channels from the bottom, form-ing a rigid box construction. the inside, through which passes a taperedkey pin,
. Canadian transportation & distribution management. d a sec-tion of % in. plate, 44% ins. long, theedges of which are flanged, and secured toedges of which are flanged, and secured to thewebs of the large I beam by twenty two %in. rivets on each flange. To the under sideof tliis plate is secured the dynamometerdraft rigging, nesting between two 12 , the backs of which are 14% Three under brackets across betweenthe lower flanges of the large I beams sup-port the channels from the bottom, form-ing a rigid box construction. the inside, through which passes a taperedkey pin, securing the U connector to thepiston rod. The location of the cylinderis shown in this same view, and the con-struction in fig. 4. The construction allowsfor cylinder flanges, by which means thecylinder is attached to the webs of thebody I beams. The cylinder is an iron casting, bored toa 16% in. diameter, with a central 15 10 in. diameter, in which the piston fits. The piston is 12 ins. long, con-taining six % by % in. annular grooves. Fig. 1.—Canadian Northern Railway Dynamometer Car. around the outside for fluid packing. Thecylinder and piston are ground into eachother, making a snug working fit, the fluidpacking proving ample, with the long con-tact surface and snug fit. The fit is suchthat the friction is small. The piston rod from the U connector is4 in. and at the front end of thecylinder, 2% ins. Both ends pass throughthe heads in packed bushings, 9 ins. longithe heads being secured to the cylinder endsby twenty 1% in. studs. Friction throughout the draft rigging is double pins are placed between the ends ofthe U connector and these lugs, holdingthe U connector in its normal central posi-tion, the pull or push being taken up bythe springs inside the yoke in the usualmanner, the dynamometer cylinder arrange-ment being made dead. When the dyna-mometer is in operation the springs in theyoke are useful in taking up sudden shocks,relieving the cylinder,
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Keywords: ., bookcentury1900, bookdecade1910, bookpublisherdonmi, bookyear1913
