. Electric railway journal . and Here is the Machine that gives that Stroke. The difference is that the planestroke is effective in one direc-tion only. The Reciprocating Track Grinder stroke is effective in both directions. It is working all the time. It is the surest, most accurate, effect- You can try it on your track at our ive and least wasteful method of grind- expense. ing out corrugations and cupped joints It requires no skilled labor for in rails. operation. Railway Track-work Co. 30th and Walnut Sts., Philadelphia June 30, 1917] ELECTRIC RAILWAY JOURNAL 13 The Erico Portable Welder
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