. Railway mechanical engineer . -little oiling is required and no adjusting. As may be seen from the illustration, the throat is deepand this, with the one-piece, automatic, disappearing stripper,gives a clear view of the punch and punch mark for the nextoperation. Several ■sheets ma\ lie punched with one opera-tion. The crowned punches of the floating type direct tlicpower to the center and will not twist or turn during the opera-tion, thus reducing the possibility of punch breakage. Thesepunches do not leave a burr on the metal. Several features contribute to the convenience of the op-erator
. Railway mechanical engineer . -little oiling is required and no adjusting. As may be seen from the illustration, the throat is deepand this, with the one-piece, automatic, disappearing stripper,gives a clear view of the punch and punch mark for the nextoperation. Several ■sheets ma\ lie punched with one opera-tion. The crowned punches of the floating type direct tlicpower to the center and will not twist or turn during the opera-tion, thus reducing the possibility of punch breakage. Thesepunches do not leave a burr on the metal. Several features contribute to the convenience of the op-erator. Among these is the absence of long, clumsy handles;the operator is brought close to the material and can followthe punch marks quickly and accurately; only a half turnof the lever is required to drive the punch through the metal;the handle is above the center and naturally tends tokeep the punch upright. The punches and dies may Ije changed easily. There may. Jiffy Portable Speed Punch be some classes of work witli which it is desirable to clampthe punch in a vise; this can readily be done with the Jiffypunch. A POWER METAL SAW WITH TWO SPEEDS A knowterial HIGH speed power metal saw arranged to provide two speeds is being built by the W. Robertson Machine & Foundry Company. Buffalo, N. Y. The latest model, n as Economy No. 40, has a capacity for cutting ma- up to 8 in. by 8 in. in section. The two speeds make
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
