. Railway mechanical engineer . 6—Cast-iron Propeller Hub AfterCutting Tor :y Oxyacetylene the beveling for big cast iron welds, cutting cast iron pipe,cutting up the cast iron bases of machines, making altera-tions in iron castings in locomotive shops, and other similarwork. Ball Bearing Nut for Valve Bushing Puller The work of pressing in or removing piston valve chamberbushings as ordinarily performed, is a laborious task. Power-operated devices for doing this work often are not satisfac-tory Ijecatlse they are unwieldy and require considerable time. Details of Construction of Bali-Bearing

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. Railway mechanical engineer . 6—Cast-iron Propeller Hub AfterCutting Tor :y Oxyacetylene the beveling for big cast iron welds, cutting cast iron pipe,cutting up the cast iron bases of machines, making altera-tions in iron castings in locomotive shops, and other similarwork. Ball Bearing Nut for Valve Bushing Puller The work of pressing in or removing piston valve chamberbushings as ordinarily performed, is a laborious task. Power-operated devices for doing this work often are not satisfac-tory Ijecatlse they are unwieldy and require considerable time. Details of Construction of Bali-Bearing Valve Bushing Nut to set up. A method which has proved highly satisfactoryis to use a ball-bearing nut of the type illustrated. Thisreduces the friction materially so that by the use of a long-handled ratchet wrench the bushings can readily be appliedor removed bv hand.

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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering