. Railway mechanical engineer . (Left* Automatic Tapping Attachment Which Imitates HandTapping. (Right) Application of Tai)ping Attachment. Parts of the .Automatic Oscillating Tapping Attachment operation of the knob on the front of the machine. Turningthe knob disengages a clutch, which throws a gear on thecountershaft out of mesh with tlie tapping spindle. These machines, carrying a No. 2 IMorse taper shank, arefurnished for all sizes of taps up to ^ in. by the WahlstromTool Company of Brooklyn, N. Y. WATER-COOLED WELDING TORCH FOR HEAVY WORK MUCH time and gas are often wasted because of the
. Railway mechanical engineer . (Left* Automatic Tapping Attachment Which Imitates HandTapping. (Right) Application of Tai)ping Attachment. Parts of the .Automatic Oscillating Tapping Attachment operation of the knob on the front of the machine. Turningthe knob disengages a clutch, which throws a gear on thecountershaft out of mesh with tlie tapping spindle. These machines, carrying a No. 2 IMorse taper shank, arefurnished for all sizes of taps up to ^ in. by the WahlstromTool Company of Brooklyn, N. Y. WATER-COOLED WELDING TORCH FOR HEAVY WORK MUCH time and gas are often wasted because of theoverheating of the tip of the oxy-acetylene weldingtorch when the work must be done in hot corners, inholes, or in the handling of heavy and difficult w-ork. Abig saving could also be effected on some jobs if the pre-heating blast could be kept on the weld while the metal isbeing fused, or if two or more torches could be used continu-ously to secure and retain the proper heat. The AdmiralWelding Machine Company, Kansas City, Mo., has de-veloped a water cooled torch to meet these difficulties. The circulation of the water keeps all pa
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
