. American engineer and railroad journal . , 1902. AMERICAN ENGINEER AND RAILROAD JOURNAL. S7 A STEEL CHANNEL ARCH-BAR TRUCK FOR 50-TONCARS. The accompanying engravings illustrate a steel truck de-signed by Mr. George I. King and adopted as a standard inthe construction of steel cars of 50 tons capacity. Specialattention is directed to the latticed spring plank with its em-bossed end battens fitting snugly into the lower arch-barchannels. This fit extends for a length of 20 ins. along the room available for brake beams, and avoids the difficulties■which have been experienced with some of the p
. American engineer and railroad journal . , 1902. AMERICAN ENGINEER AND RAILROAD JOURNAL. S7 A STEEL CHANNEL ARCH-BAR TRUCK FOR 50-TONCARS. The accompanying engravings illustrate a steel truck de-signed by Mr. George I. King and adopted as a standard inthe construction of steel cars of 50 tons capacity. Specialattention is directed to the latticed spring plank with its em-bossed end battens fitting snugly into the lower arch-barchannels. This fit extends for a length of 20 ins. along the room available for brake beams, and avoids the difficulties■which have been experienced with some of the patented beamsfor which there is insufficient space when the brake hangers arehung in the usual way. In this truck the side bearings havebeen located 60 ins. from center to center, and adjustable cast-iron fillers are placed in the side bearing pockets, with aview of adjusting the desired clearance between the body andtruck side bearings by means of shims. This truck employs5V4 by 10-iu. axles, malleable iron journal boxes, pressed steel. A Steel Channel Arch-Bar Truck for 50-Ton Cars. bottom arch bar and is relied upon to keep both side framesof the truck in parallel alignment under all conditions ofservice, relieving the bolts of this duty. The channel-shapedarch bars offer the advantage of a maximum of strength witha minimum of dead weight, and they may now be obtainedfrom two of the prominent steel companies. It should benoted that the brakes are hung from the cast-steel end cast-ings of the truck and are thus rigidly hung from the truckframe and not from the bolsters. With this construction thebrake shoes remain always at the same distance above therail, which is not true of trucks in which they are hung fromthe bolsters. This arrangement gives a large amount of lids, special channel arch bars, cast-steel bolsters ami endcastings, malleable-irou brake levers and National HollowBrake Beams. In a recent extended trip by a representative of this journalamong the motive power
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
