. Canadian machinery and metalworking (January-June 1919). f Stroke of Piston. 48No. of Revolutions per minute 75 Fly Wheel 18 x 12Vi Face Weight 40,000 lbs. Rated Horse Power 625 I. H. P 700 Max 950 One 25 x 50 Left-Hand Wheelock 20i/> x 46 Left-Hand Wheelock En-gine. These engines are in excellent Photograph and full particulars will besent on application to GUTTA PERCHA & RUBBER LIMITED Toronto, Canada If any advertisement interests you, tear it out now »»r? place with letters to be answered. 74 CA N A DI A N MACHINERY Volume XXI Taps, Dies and Reamers ZJ The Decidi
. Canadian machinery and metalworking (January-June 1919). f Stroke of Piston. 48No. of Revolutions per minute 75 Fly Wheel 18 x 12Vi Face Weight 40,000 lbs. Rated Horse Power 625 I. H. P 700 Max 950 One 25 x 50 Left-Hand Wheelock 20i/> x 46 Left-Hand Wheelock En-gine. These engines are in excellent Photograph and full particulars will besent on application to GUTTA PERCHA & RUBBER LIMITED Toronto, Canada If any advertisement interests you, tear it out now »»r? place with letters to be answered. 74 CA N A DI A N MACHINERY Volume XXI Taps, Dies and Reamers ZJ The Deciding Factor in ToolEconomy is Quality Every process in the manufacture of Butterfield Tools isperformed by experts, whose entire aim is to produce thehighest quality—and the rigid inspection prevents any pos-sibility of inferior tools reaching the shipping room. By the service afforded—by the ability to cut cleanly andaccurately and to duplicate the work over a long period ofuse—Butterfield quality gives the maximum returns on Butterfield Tools reflect splendidly our 35 years continuousconcentration on improvement in high speed tools. You cantKo wrong with a Butterfield. Send for Catalog No. Its just out. Butterfield & Co., Inc., Rock Island, Toronto Office : 220 King St. W. NAMCO AUTOMATICSELF-OPENING DIES Opening of chasers is automatic andpositive. When the forward travel of the turretholding the die is stopped, the continuedrotation of the work draws forward thebody carrying the chasers. This releases the chasers without anystrain or twist on the threads. It is only one of the good features ofNAMCO DIES. For a complete description, send forthe new catalogue TD-18
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19
