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adjustment angle arranged automatic axis back-gearing back-shaft belt bevel body bolts boring capstan carbon carrier carries centre hole chuck circular cone cone-pulley connexion countershaft countersinking cross-rail cutting edge cutting speed cutting tools diameter driving headstock driving plate driving spindle engine lathe face-plate feed-rod former front gear wheels grooves hand-wheel hardened horizontal inches indicated in Fig jaws large lathes lathe bed Lathe carriers latter lead-screw longitudinal loose-headstock machine tools mandrel means method MICHIGAN modern lathe motion mounted moved movement nose obtained operation ordinary parallel pearlite pinion plain position possible pulley radial represented in Fig revolutions per minute rotation saddle screw screw-cutting screw-thread secured shaft shank shears shown in Fig slide-rest slots spindle speeds spur-gear surface swivelling tail tailstock tapered tee-slots thread tool steel tool-holders tool-post tool-slide top slide treadle tungsten turning turret head turret lathe usually vertical washer whilst
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Page 125 - Such a shaper is shown in Fig. 3. It has a very rigid box bed a, which carries the ram b on top and one or more tables on its side. The ram is mounted on a saddle //, which can be moved along the bed either by hand or by an automatic feed. The line of motion of the saddle is at right angles to the line of motion of the ram; the tool is fed across the work by moving the saddle. The shaper head c is fastened to the end of the ram in the same manner as in a column shaper. Vertical slides m, m, which...
Page 221 - The allowable speed in any case depends upon several factors, the most important of which are (1) the...
Page 38 - K are free to slide longitudinally on their shafts simultaneously and in the same direction (that is, either to the right or to the left).