. The locomotive engineer . THE LOCOMOTIVE ENGINEER. [March, 1891 Patent Portable Locomotive Gylinder Boring NIacliine. Will bore out Locomotive Cylinders IN THEIR PLACES by removino one or both heads, as desired, and piston. THE ENDTWRUST IS ALWAYS IN EXACT LINE WITH BAR, It is fed with constant feed of cul Portable Valve Seat Rotary Planing Macnine. Pedrick & Ayer, l|)tlou uii uppllialloa. CfiirBtdlr true up Crank. pari Ihal la ■■ccpnirlc■ ai llie comt-ra. Ii will11 utir Ir i>ln. !■ bDlliwUb roll de-

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectrailroa, bookyear1888