. American engineer and railroad journal . h re-cedes for cropping off ends, and can be used down to 2 ins. inlength, and up to 5 ft. 3 ins. The right-hand table has a rule,graduated to inches and eighths for cutting off. A supplementary cut-off gauge is fitted to the right-handtable, consisting of a long tongue, moving freely in a slot, towhich is attached a swiveling head or fence, graduated to 45deg. both ways, and arranged to be connected, when desired, .\: ei(., . I i .-:. or n o! : WELDING LOCOMOTIVE FRAMES WITH THERMIT. By J. A. B. Gibson, Chief Draftsman, Richmond, Fredericks-bubg & Po
. American engineer and railroad journal . h re-cedes for cropping off ends, and can be used down to 2 ins. inlength, and up to 5 ft. 3 ins. The right-hand table has a rule,graduated to inches and eighths for cutting off. A supplementary cut-off gauge is fitted to the right-handtable, consisting of a long tongue, moving freely in a slot, towhich is attached a swiveling head or fence, graduated to 45deg. both ways, and arranged to be connected, when desired, .\: ei(., . I i .-:. or n o! : WELDING LOCOMOTIVE FRAMES WITH THERMIT. By J. A. B. Gibson, Chief Draftsman, Richmond, Fredericks-bubg & Potomac Railroad. In looking backwards within ihe last few years at the im-provements iu developing and maintaining our heavy andhigh-pressure locomotives, nothing has attracted the writersattention more than the recent invention of the German sci-entist, Dr. Goldschmidt, and his process of welding known asthe thermit process. All mechanical railroad men know what a broken framemeant in times past, how it necessitated jacking the engine. FIG. 1—LOCOMOTIVE FRAME SHOWING FRACTURE WHICH WASWEEDED BY THERMIT. up, taking out the wheels and removing the frame to thesmith shop; and even with our modern shops, equipped withelectric cranes and similar conveniences, this is still an itemof considerable expense, and the loss entailed in having theengine out of service often exceeds the actual cost of process of welding locomotive frames was recently in-troduced at the Boulton shops of the Richmond, Fredericks-burg & Potomac Railroad, and it has proved a perfect successin welding both cast steel and wrought frames. Our first ex-perience with a cast steel frame was on one of our large Pa-cific type engines. This frame broke in the top rail betweenthe pedestals, as shown by Fig. 1. ■ i run off ^ N
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
