. American engineer and railroad journal . rs of the same design. The absolute accuracy of thismetho<i of lining up permits of the chipping of the cylindersaddles to a templet without incurring the lost time usual inplacing the boiler on the frames, marking off and blocking will be explained further in connection with the use oftemplets in the erecting shop. rivets machine driven is as reliable as first class iron rapid distortion at one operation of the steel formed headis more than liable to reduce the tensile strength of the head;in other words, were the steel rivet driv
. American engineer and railroad journal . rs of the same design. The absolute accuracy of thismetho<i of lining up permits of the chipping of the cylindersaddles to a templet without incurring the lost time usual inplacing the boiler on the frames, marking off and blocking will be explained further in connection with the use oftemplets in the erecting shop. rivets machine driven is as reliable as first class iron rapid distortion at one operation of the steel formed headis more than liable to reduce the tensile strength of the head;in other words, were the steel rivet driven by hand the beadwould be stronger than when driven by machine, and thecontrary would be the case with the iron rivet. This is wellrecognized on conditions where snap riveting is required and aleakage of the rivet in service requires calking. Under theseconditions the steel rivet will stand more calking than the ironrivet, for the reason that the working, due to hard drivinj?,has a refining effect, on the steel, and seems to improve its. Fig. Die, Back Head.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
