. The Street railway journal . PLAIV PLAN AND ELEVATION OF RADIAL TRUCK devised by J. S. Warner, of Westminster, Eng., as the out-come of his experience with American truck makers. Theterm used by German engineers, single axle bogie, orby the French, pivotal axle, is preferred by Mr. Warnerto the term radial truck, at least for four-wheel carssince perfect radial action with four-wheel cars is a remotepossibility. As will be seen by reference to the plan. Fig. i, themotors are pivoted at points between the axles. The wholecar then hangs on links each about i ft. in length, therebeing two to ea
. The Street railway journal . PLAIV PLAN AND ELEVATION OF RADIAL TRUCK devised by J. S. Warner, of Westminster, Eng., as the out-come of his experience with American truck makers. Theterm used by German engineers, single axle bogie, orby the French, pivotal axle, is preferred by Mr. Warnerto the term radial truck, at least for four-wheel carssince perfect radial action with four-wheel cars is a remotepossibility. As will be seen by reference to the plan. Fig. i, themotors are pivoted at points between the axles. The wholecar then hangs on links each about i ft. in length, therebeing two to each axle box. The result of this arrange-ment is a peculiar movement illustrated by Fig. 2, the upperview representing what would be seen -by a person on theinside of the curve. Through the enterprise and courtesy of H. E. Blain, of. FIG. 2.—VIEWS ILLUSTRATING THE RADIAL MOTION OFTHE TRUCK the West Ham Tramways, England, some twelve monthsregular service has been run with the Warner method ap-plied to one end. The result of this trial is claimed toshow that even without the control of alignment springsno overswing results, while on straight track the car bodypreserves an unusually comfortable dead straight important claim for this truck is that the traction is effect given by the Warner truck around the slightest irreg-ularity gives a valuable freedom from flange friction reduc-ing it probably by one-half. Since flange friction forstraight tramway track and single trucks is never equiva-
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
