. Railway mechanical engineer . Cylinder Head with Valve Covers and Some of the ValvesRemoved. Class WB-3 Air Compressor, Straight Line Type with Simple Steam and Two-Stage Air Cylinders 3)-2 RAILWAY MECIIAXICAL ENGINEER \uL. 93, Nu. 6 A MACHINE FOR SHARPENING OLD FILES THE American file sharpening machine, manufacturedby the Abrasive JIachine Company, Irvington, X. J.,is designed for the resharpening of old files of all resharpening of a dull file is accomplished through thegrinding action of a patented abrasive combination knownas Carboflynt, mixed with water, propelled at high vel
. Railway mechanical engineer . Cylinder Head with Valve Covers and Some of the ValvesRemoved. Class WB-3 Air Compressor, Straight Line Type with Simple Steam and Two-Stage Air Cylinders 3)-2 RAILWAY MECIIAXICAL ENGINEER \uL. 93, Nu. 6 A MACHINE FOR SHARPENING OLD FILES THE American file sharpening machine, manufacturedby the Abrasive JIachine Company, Irvington, X. J.,is designed for the resharpening of old files of all resharpening of a dull file is accomplished through thegrinding action of a patented abrasive combination knownas Carboflynt, mixed with water, propelled at high velocit\-by a jet of steam through a nozzle. A cross section of the nozzle (Fig. 1) shows a flat filein the proper resharpening position, resting on the bevellededge of a block of metal called the test iron because ofthe fact that a properly resharpened file will gently adhereto its surface. The correct angle of the file to the jet of Car-boflynt shown projected from the nozzle is about 30 the bevel on the test iron serves as a guide to the op-erator in handling the file. enlarged
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
