. Railway mechanical engineer . Fig. 1—Logan 24-in. Air Operated Chuck Applied to Heavy Duty Turret Lathe air operated chuck thus applied. This chuck holds the between the draw tube and jaw slide keep dust and chips work more securely than one operated by hand, which makes from working into the operating mechanism. possible heavier cuts and increased feeds. There is also a The combination three-jaw chuck, illustrated in Fig. 2, is provided with jaws which are adjustable and reversible. They can be set independently by a wrench or universally. Fig. 2—Cross Section of Combination Three-Jaw Chuck
. Railway mechanical engineer . Fig. 1—Logan 24-in. Air Operated Chuck Applied to Heavy Duty Turret Lathe air operated chuck thus applied. This chuck holds the between the draw tube and jaw slide keep dust and chips work more securely than one operated by hand, which makes from working into the operating mechanism. possible heavier cuts and increased feeds. There is also a The combination three-jaw chuck, illustrated in Fig. 2, is provided with jaws which are adjustable and reversible. They can be set independently by a wrench or universally. Fig. 2—Cross Section of Combination Three-Jaw Chuck Fig. ogan Double Acting Air Cylinder big saving in chucking time and a resulting increase in pro- operated by compressed air in connection with the Logftn duction. The Logan chuck, illustrated, is being placed on double acting air cylinder. Master jaws with plain, soft the market by Frank E. Payson Company, Chicago, 111., steel blocks are regularly fitted to a steel or semi-steel body, and is adapted to all types of lathes. The weight on A set of three-step reversible hardened steel jaws to fit the 404 RAILWAY MKCIIAXICAL ENGINEER \oL. 94, No. 6 niajter jaw can he provided if required. Attention is calledto the one-piece body construction, the convenient, adjustingscrew, the chrome nickel steel lever, and the fact that thedraw tube and jaw slide do not separate, making a dustproof joint. A cross section of the double-acting air cylinder. Fig. 3,shows the Johns-Manville type of packing cup and expanderring. The general arrangement o
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectrailroadengineering
