Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . be ground by using an emery wheelon each side of the head. Reamers and shell counterbores of large or small sizes. Gear cutters and formed cutters of every description. Flat surfaces, such as shear plates, dies and gages. Hardened bushing and other pieces to be ground internallv. Conical surfaces, such as taper bearings and mandrels, andsmall cylindrical machine parts which are to be finished with ex-treme accuracy. The foregoing list does not give the limit
Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . be ground by using an emery wheelon each side of the head. Reamers and shell counterbores of large or small sizes. Gear cutters and formed cutters of every description. Flat surfaces, such as shear plates, dies and gages. Hardened bushing and other pieces to be ground internallv. Conical surfaces, such as taper bearings and mandrels, andsmall cylindrical machine parts which are to be finished with ex-treme accuracy. The foregoing list does not give the limit of the capacity ofmachine, but rather indicates in a general way what is possible inits use. For a more particular presentation of the kinds of work whichcan be and are actually ground on such machines, reference ismade to the following pages. GRINDING. 227 Prominent Features. Those familiar with grinding the side teeth of side milling and angular cutters are aware that the tooth rest must be set to the exact height so as to bring the cutting edge of the tooth to be ground in an exact parallel line with the slide. In some machines. FIG. 146.—CINCINNATI UNIVERSAL CUTTER AND TOOU GRINDER. this adjustment of the tooth rest for this grinding is difficulty, however, is overcome in this machine, as no atten-tion is required to adjust the tooth rest, since it is centrally fixedfor all diameters of cutters. The tooth rest travels with the cut-ter, except in the grinding of spiral mills and large saws. 228 HARDENING^ TEMPERING AND ANNEALING.
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Keywords: ., bookcentury1900, bookdecade1900, bookidhardeningtem, bookyear1903
