Canadian Machinery . istance of the former andthe greater load in the latter case. Thelongitudinal power quick traverse, is atthe rate of 100 inches per minute whilethe cross and vertical travel is atthe rate of 36 inches per minute. Oilingdirections for this machine are simpleand complete, a small plate on the being all that is necessary to explainthem to new or unskilled operators. The drive is of the single pulley typethrough a train of gears giving 18changes of spindle speed ranging from 16to 400 R. P. M. All speed changes aresecured by sliding gears, there being notumbler gears,
Canadian Machinery . istance of the former andthe greater load in the latter case. Thelongitudinal power quick traverse, is atthe rate of 100 inches per minute whilethe cross and vertical travel is atthe rate of 36 inches per minute. Oilingdirections for this machine are simpleand complete, a small plate on the being all that is necessary to explainthem to new or unskilled operators. The drive is of the single pulley typethrough a train of gears giving 18changes of spindle speed ranging from 16to 400 R. P. M. All speed changes aresecured by sliding gears, there being notumbler gears, clutches or locking are never more than three pair ofgears in mesh. All heavy cuts aredriven through the large spindle gears,the gear arrangement being such thatall cutters above 3 inches diameter arenormally driven through this desired and at an extra cost wecan furnish the above machine arrangedfor motor drive through belt in whichcase the motor recommended is 7M ,running at 1,200 R. P. PORTABLE The Barrett-Cravens Co., Chicago, III.,have placed on the market a portablecrane which is claimed to have variousoutstanding features. The crane is of all steel construction,and the load is locked at all points oftravel. The lifting mechanism is of theworm and gear type, thus allowing theload to be raised to any desired height,even to a fractiofi of an inch. This is,of course, a desirable feature when as-sembling or dismantling heavy machin- The hoisting worm gear is maile ofbronze, and the screw is cut from solidsteel shafting of goodly proportions. GENERAL VIEW OF THE PORTABLE CRANE. Both are enclosed in an oil tight casthousing to permit proper axle is chrome nickel steel, heattreated, and Hyatt roller bearings areused in all the wheels. The treads of thewheels are chilled to ensure long Ontario representative for this coa-cern is the Anglo-Canadian Metals, Ltd.,52 Spadina Ave., Toi-onlo, while B. andS. H. Thompson & Co.
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Keywords: ., bookcentury1900, bookdecade1910, bookidcanadianmachiner2502torou
