. The street railway review . <^tiect5^mlw!ay-l^eA^^ 373 of metal further reihiceil Iv fonninj; tlie bars with concavesides as shown. A technical publication of about the same period as thatof the above patent contains the following two paragraphsrelating to the claims made by the inventor. It may be deserving of remark in this place that suggested at the end of his specifications thathis railway bars (iS ft. long) should be welded togetherend to end continuously so as to form an extensive linewithout any joint and thus avoid the jolting and concussionsconsequent upon the carr
. The street railway review . <^tiect5^mlw!ay-l^eA^^ 373 of metal further reihiceil Iv fonninj; tlie bars with concavesides as shown. A technical publication of about the same period as thatof the above patent contains the following two paragraphsrelating to the claims made by the inventor. It may be deserving of remark in this place that suggested at the end of his specifications thathis railway bars (iS ft. long) should be welded togetherend to end continuously so as to form an extensive linewithout any joint and thus avoid the jolting and concussionsconsequent upon the carriage wheels striking against theends of each length of the ordinary rails when they are con-nected to the chairs. The editorial remarks are as follows : The introduction of this suggestion serves to show whatgreat mistakes are made sometimes by the cleverest men forwant of a little reflection, and we make no doubt that thepatentee became soon sensible of what most of our readers zu. are aware of, that a rail so constructed without any provi-sion for its expansion and contraction which takes place inthe metal from atmospheric changes of temperature, mustinevitably soon be thrown into ruins by the twisting of therail and the continual motion of the chairs and our only motive for noticing so singular an oversightis that the inexperienced and confiding reader of the speci-fications may not fall into a similar error. In this record we evidently have the origin of thegirder rail, as well as the method of forming bars by pass-ing the metal when heated tVjrough rollers. It is interestingto note that there was much opposition to rails of this typeon the claim that wrought metal would rust faster than castmetal, and also become splintered by the action of thewheels, and this called forth a long article from Stephensonrelating to the ([uestions, in which he remarks, ft has beensaid by some engineers that wrought iron will exfoliate orseparate in the laminae, on
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Keywords: ., book, bookcentury1800, bookdecade1890, booksubjectstreetrailroads
