. The Street railway journal . , rail specifications and parts of rolling report on rail specifications was printed in the StreetRailway Journal for Jan. 5, 1907, and that on rolling stockin the issue of Sept. 7. The report on rail sections follows: Fifteen sections are proposed for standardization, these sections best answers service requirements or specifyingbeforehand the features a standard rail should first method is undesirable, as it might introduce agreat variety of sections. The second method, therefore, isrecommended, for no matter what sections are chosen, nogre
. The Street railway journal . , rail specifications and parts of rolling report on rail specifications was printed in the StreetRailway Journal for Jan. 5, 1907, and that on rolling stockin the issue of Sept. 7. The report on rail sections follows: Fifteen sections are proposed for standardization, these sections best answers service requirements or specifyingbeforehand the features a standard rail should first method is undesirable, as it might introduce agreat variety of sections. The second method, therefore, isrecommended, for no matter what sections are chosen, nogreat harm will be done, since the rolls for such sectionswill wear out eventually and then new shapes can be rolledto meet the conditions imposed by additional , in revising such standard sections from time totime it will then be easier to specify minimum weightsand profiles for any given load than has been the caseheretofore. The principal points governing the choice of a standard < 59 —i< H J** 1043©. SECTIONS OF THE GROOVED. TEE AND COMPOSITE RAILS ALL DIMENSIONS consisting of five each for grooved, composite and T-railsrespectively and for wheel pressures from two to five tonsgraded as per table I. TABLE I Section No. Wheel Pressure in Metric Tons. r. From 2 to 3 Average 11. 3 in, 3 4 IV. 4 V. 4 5 The committee on standardization assumes that the choiceof any particular section will be governed by the densityof traffic as well as by the wheel pressure. The grooved rail sections suggested by the standardiza-tion committee have been selected with the idea of avoidingshapes that would require radical changes in rolling-millequipment. In fact, an attempt has been made to selectstandards from sections now in use. This choice can bemade in two ways, either by finding which of the present PROPOSED AS STANDARDS FOR GERMAN STREET IN MILLIMETERS. rail are the shape of the head (groove, height of head andguard rail), th
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectstreetr, bookyear1884
