Canadian machinery and metalworking (July-December 1917) . evices they equal, and in many cases surpass, the output of the expertworkman. One of the woman machinists chief helps is the Hannifin Air Chuck, by means of which work is chucked andrigidly gripped by simply turning a lever. Another turn effects the release. The Hannifin Chuck is almostinstantaneous in action, holds securely, cannot slip, saves labor, and saves time to the extent of increasing output20 to 100 per cent. Every argument is in favorof the Hannifin Air Chuck. Order one on trial and let itprove its own case. HANNIFINAir Chu


Canadian machinery and metalworking (July-December 1917) . evices they equal, and in many cases surpass, the output of the expertworkman. One of the woman machinists chief helps is the Hannifin Air Chuck, by means of which work is chucked andrigidly gripped by simply turning a lever. Another turn effects the release. The Hannifin Chuck is almostinstantaneous in action, holds securely, cannot slip, saves labor, and saves time to the extent of increasing output20 to 100 per cent. Every argument is in favorof the Hannifin Air Chuck. Order one on trial and let itprove its own case. HANNIFINAir Chucks Write for catalogue covering-Air Operated Chucking andClamping Equipment. HANNIFIN MFG. COMPANY, Chicago, REPRESENTATIVES:—R. E. Ellis Engineering Co., Chicago: Coats Machine Tool New York City;A. R. Williams Machinery Toronto; Williams & Wilson, Montreal; The Canadian Fairbanks-MorseCo., Montreal. EUROPEAN REPRESENTATIVES:—Coats Machine Tool Co., Ltd., London ; FenwickFreres & Co., Paris; IznosskofT & Co., Mention this paper when writing advertisers. It will identify the proposition about which you require information. July 12, 1917. CANADIAN MACHINERY 89


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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19