. Railway mechanical engineer . are especially adapted for (drilling tell-tale holesin staybolts, and work of that character. As the motor isself-contained and well balanced, there is practically novibration, a desirable feature in the performance of ac-curate work. The drill weighs only 4-;|/2 lb. The self-contained motor shown in Fig. 2 consists ofthree cylinders and pistons mounted in a frame, the entireengine rotating about a crankshaft or spindle. Thecylinders oscillate from a base and cams on the spindleoperate the valves. All working parts run in a bath ofoil. It is claime
. Railway mechanical engineer . are especially adapted for (drilling tell-tale holesin staybolts, and work of that character. As the motor isself-contained and well balanced, there is practically novibration, a desirable feature in the performance of ac-curate work. The drill weighs only 4-;|/2 lb. The self-contained motor shown in Fig. 2 consists ofthree cylinders and pistons mounted in a frame, the entireengine rotating about a crankshaft or spindle. Thecylinders oscillate from a base and cams on the spindleoperate the valves. All working parts run in a bath ofoil. It is claimed that the Duntley air drill due to economicalair consumption and lack of vibration can be used to goodadvantage on work hitherto performed almost exclusivelyby electric drills. FAIRBANKS POWER HAMMER GUARD To provide full protection to operators of this machine,the United Hammer Company, Boston, Mass., has designeda guard for its Fairbanks power hammer, which completelycovers the working parts of the machine. The guard is made. Safety Guard for Power Hammer of woven wire stretched across a metallic frame work whichfits the upper part of the machine. By means of a door shown in the illustration, the partsare easily accessible as before, for the purpose of oiling andadjusting. The safety guard interferes in no way with theoperator and is easily attached to Fairbanks hammers al-ready in operation. It may also be applied to the new400-lb. and 500-lb. hammers recently developed for locomo-tive and other heavv classes of work. 682 RAILWAY MECHANICAL Vol. 93. No. 11 A QUICK OPERATING HOSE COUPLING .\ new hose coupling with several important advantageshas been placed on the market by the Independent PneumaticTool Company, Chicago, and is known as the New TliorPerfect Hose coupling. Its particular advantage lies inthe fact that it ma) Ije disconnected instantly by a straightpull on the knurled sliding sleeves. These sleeves areplainly shown in the illustration and when they a
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
