. Locomotive engineering : a practical journal of railway motive power and rolling stock . rolls are seen at the left of the punch or shear is shown at the cen-ter. Car companies are evincing a lively in-terest in these taper-rolling machines,which can turn out brake levers andChristie brakehead keys at a rate andof a quality of finish absolutely impos-sible by any of the old methods. The builders of these machines are hav-ing something of a boom in trade at pres-ent, the Canadian Pacific Railway havingordered two of the No. s bulldozers, andthey are also building two of the eyebol
. Locomotive engineering : a practical journal of railway motive power and rolling stock . rolls are seen at the left of the punch or shear is shown at the cen-ter. Car companies are evincing a lively in-terest in these taper-rolling machines,which can turn out brake levers andChristie brakehead keys at a rate andof a quality of finish absolutely impos-sible by any of the old methods. The builders of these machines are hav-ing something of a boom in trade at pres-ent, the Canadian Pacific Railway havingordered two of the No. s bulldozers, andthey are also building two of the eyeboltmachines for car companies, in additionto the Justice hammer ordered by theSouthern Railway Co. i i ^ We note some curious testimony aboutmethods of preventing spark-throwingfrom locomotives, in an old English law-suit. A report says: It was proved byengineers and other scientific men that itwas the practice to supply the chimneysof locomotive engines with wire gauzebonnets or spark-catchers, or the fireboxwith Venetian blinds, in order to prevent P- TAPER ROLLING MACHINE. new part into action. The same blocksthat carry the shears may be used forsqueezing, bending or welding, and themachine can be adjusted so as to do goodwelding at the same time that it formsthe eye. The taper-rolling machine does itswork by means of eccentric-shaped rolls,a part of which are cut away to allow theoperator to push in the bar against a stopor gage, but the piece may be gaged bythe eye when so desired. The rolls thengrip the iron and push it back to the oper-ator, at the same time tapering or draw-ing it to the special shape required. These accidents of this kind, and that the enginereferred to had neither of these engine manufacturers stated thatbonnets and Venetian blinds had ceasedto be in general use for the last fifteenyears, except on South Wales railways,where the engines were worked at a highpressure and the line passed through awoody country, because the improvedcon
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroa, bookyear1892
