. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . oken, But Why?Editor: A left back-up U-bolt eccentric hadbeen loose and running warm, luke-warm in fact. At the top of a hill trainbroke in two about thirty-five carlengths from engine. When stoppedthe slack of the train was all out, andwhen the engine started to back it hadmade about three exhausts when theslack all ran down against engine andshoved it ahead about one revolution,and in doing so the left back-up eccen-tric and strap were smashed. What io6 RAILWAY AND LOCOMOTIVE ENGINEERING Ma
. Railway and locomotive engineering : a practical journal of railway motive power and rolling stock . oken, But Why?Editor: A left back-up U-bolt eccentric hadbeen loose and running warm, luke-warm in fact. At the top of a hill trainbroke in two about thirty-five carlengths from engine. When stoppedthe slack of the train was all out, andwhen the engine started to back it hadmade about three exhausts when theslack all ran down against engine andshoved it ahead about one revolution,and in doing so the left back-up eccen-tric and strap were smashed. What io6 RAILWAY AND LOCOMOTIVE ENGINEERING March, igo8. caused the breakage when the eccentricwas not hot and only slipped about aquarter of an inch on the axle and theany of your readers solve this problem?valves were in excellent condition. CanTerre Haute, Ind. H. P. Good Boring Bar. Editor: The boring bar shown on the draw-ing sent herewith was designed moreespecially for boring car wheels, wherea bar of very rigid construction waseeded. This bar. as will be seen, canry quickly and easily adjusted, in-wardly or outwardly as needed, by the. ADJUSTABLE BORING BAR. right and left hand screw which passesthrough the tool blocks. The blocksare securely clamped by the bindingscrew at the bottom. We have found in our use of thistool for over two years that we canbore out a wheel with one cut, regard-less of the amount of stock to be re-moved, and with a feed of % in. perrevolution. The cutting tools are sim-ply flat pieces of self-hardening steel,both cut to the same length and maybe made of any size to suit are using on our 4-inch bar steelH x i}4 ins. cut from the bar of thatsi2e. One wrench is all that is neededto adjust the tools; we use a doubleended box wrench, one end to fit theadjusting screw and clamping screwand the other end to fit the set screwswhich hold the cutters. We havefound this the best bar we have everused for boring wheels to fit the axle,which is now our general practice. While this bar was
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectrailroa, bookyear1901
