. Canadian machinery and metalworking (January-June 1919). nd is equip-ped with split phosphor bronze bearingsof large diameter provided with oil wellsfor lubrication. The spindle is of largediameter and is turned from high carbonsteel. Three changes of feed are obtainablethrough the feed box on the bed belowthe headstock. By changing the gearson the head and quadrant plate, anyother desired feeds may be obtained. Itis impossible to engage either the auto-matic cross or longitudinal feeds whenthe machine is set for screw cutting, orvice versa. The thread of the lead screwis used for screw cutt
. Canadian machinery and metalworking (January-June 1919). nd is equip-ped with split phosphor bronze bearingsof large diameter provided with oil wellsfor lubrication. The spindle is of largediameter and is turned from high carbonsteel. Three changes of feed are obtainablethrough the feed box on the bed belowthe headstock. By changing the gearson the head and quadrant plate, anyother desired feeds may be obtained. Itis impossible to engage either the auto-matic cross or longitudinal feeds whenthe machine is set for screw cutting, orvice versa. The thread of the lead screwis used for screw cutting only. Thefeeds may be instantly reversed in theapron by a convenient lever. The saddleis securely clamped when using thecross feed. The lead screw is reversedfor right and left hand threads bymeans of the reverse plate on the head. A thread chasing dial, for indicatingcorrect point for engaging nut forthread cutting, is provided on the car-riage, obviating the necessity for stop-ping the lathe when screw cutting. Amicrometer adjustment is provided on. MOTOR-DRIVEN H6-INCH GAP LATHE. of box section. It is provided with threeinverted Vs of liberal proportions. Theheadstock and the tailstocl: each rest onone V and one flat surface, and the sad-dle bears on two Vs and also on the flatsurface. The brackets attached to thebed are made with a tongue fitting agroove in the bed, and the rack is of the handles of the cross screw and com-pound rest. The tailstock is rigid and heavy, andis clamped to the bed by heavy boltsconveniently situated. It is so shapedas to permit compound rest to be set atright angles without interfering. Thespindle is graduated in fractions of an inch for use in boring. The tailstock isadjustable across its base by means of ascrew to permit of it being set over toturn tapers, the base being graduatedfor this purpose. The tailstock is pro-vided with a traversing gear, operated byi handwheel working a pinior, in therack. The lathe has the following dimen-sions:
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectmachinery, bookyear19
