. The Street railway journal . A VIEW OF THE TRUCK COMPLETE be kept more easily in true. Because of its flexibility and sim-plicity, this truck adjusts itself to the inequalities of the track,reducing derailment and flange wear to a minimum. It is claimedthat there is at least 1000 lbs. saving in dead weight per carover any other type of truck. In this side frame there is butone piece. In one of the existing types there are forty-onepieces, and in others as many as ninety-three. This truck has all the easy riding features of the equalizedswing motion pedestal truck. The truck frame has over th
. The Street railway journal . A VIEW OF THE TRUCK COMPLETE be kept more easily in true. Because of its flexibility and sim-plicity, this truck adjusts itself to the inequalities of the track,reducing derailment and flange wear to a minimum. It is claimedthat there is at least 1000 lbs. saving in dead weight per carover any other type of truck. In this side frame there is butone piece. In one of the existing types there are forty-onepieces, and in others as many as ninety-three. This truck has all the easy riding features of the equalizedswing motion pedestal truck. The truck frame has over thejournal bearing a spring barrel which is part of each journalbox. Springs are placed within this barrel directly on the. ARRANGEMENT OF JOURNAL SPRINGS IN STEEL SIDEFRAME CASTING wedges and brasses to permit the vertical movement of theaxles within the boxes. This construction eliminates the greatwear of journal boxes in pedestal jaws, which is the source ofgreat expense in the present pedestal truck. It also whollyeliminates having the brake-shoes dragging and straining themotors. The bolsters are made of open hearth steel, and are shapedin powerful hydraulic presses. After the center bearings, sidebearings and guides are riveted in position upon the bolster itis subjected to a further test in a 100-ton hydraulic press. Thisinsures the perfect alignment of all the parts in relation to eachother. February 4, 1905.] STREET RAILWAY JOURNAL. 235 The truck is equipped with either elliptic or coil bolstersprings. The swing motion of the bolster may be obtained bythe use of roller bearings, eye-bolt hangers, or with ball andsocket spring side bearings. The designer of this truck is aware that ball bearings ha
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
