Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . a metallic hub whichforms the axle-box, and has aubricating-chamber and spoke-clamps. 4. A block for scotcliing acarriage or car wheel. upon a horizontal bed, which is susceptible of an os-cillating motion about a center for the purpose of al-lowing the tool to be set at any desired angle. Withthis bed is combined a laterally adjustable tool-holderand a longitud
Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts . a metallic hub whichforms the axle-box, and has aubricating-chamber and spoke-clamps. 4. A block for scotcliing acarriage or car wheel. upon a horizontal bed, which is susceptible of an os-cillating motion about a center for the purpose of al-lowing the tool to be set at any desired angle. Withthis bed is combined a laterally adjustable tool-holderand a longitudinally adjustable carriage. The car-riage is provided with a contrivance for throwing itin and out of gear, with a feeding-screw for the pur-pose of feeding the tool up to its work with a slowmotion, and retracting with a quicker motion. HUB-CENTERING MACHINE. 1141 HULLING-MACHINE. Hub-center-iag Ma-chine. ( Wheel-making.)A uiacliiiie iu whifli u hub is chuckeil while the holefor the is reamed out eonceiitrio with theoutside shajie. A similar mode is adopted for hold-ing the hub while setting the boxes therein. Hub-lathe. {JVIiedirrig]dii(g.) A form of lathefor turning carriage and wagon hubs. In the e.\am- Fig. Hub-Lathe pie, the cutter is held and fed to its work by adouble slide, and its lateral movement is regulatedby the adjustable stop attached to the cross-head ofthe double slide. Hub-mortis-ing Ma-chine. {Whcclwright-hig.) A machine iu which a wheel-huli is held upona mandrel or stake, so disposed that a reei])rocatingchisel may cut therein the mortises for the hub is dogged or clamped so as to prevent rota-tion while the mortise is Vicing cut, and is then ro-tated a determinate numlier of degrees to presentthe next spot to the cutting-tool. Hub-tnirning Ma-chine. {Whedwriqhting.)k form of lathe s|iccially adapted for turning hubsfor vcliiide {Fubric.) A table linen or tow-eling having the weft alter-nately crossed, so as
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