Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . PIG. 168.—GRINDING A HARDENED JIG BUSHING. 244 HARDENING^ TEMPERING AND ANNEALING. How to Grind a Taper 169 shows the long sHde at the back of the column, thewheel on the right of the spindle, the table set for the requiredtaper, and the grooved pulley running loose on the work circular grinding when the piece is held by the work spindlealone the grooved pulley is locked to the Emery wheel shape No. 3 is used for taking deep
Hardening, tempering, annealing and forging of steel; a treatise on the practical treatment and working of high and low grade steel .. . PIG. 168.—GRINDING A HARDENED JIG BUSHING. 244 HARDENING^ TEMPERING AND ANNEALING. How to Grind a Taper 169 shows the long sHde at the back of the column, thewheel on the right of the spindle, the table set for the requiredtaper, and the grooved pulley running loose on the work circular grinding when the piece is held by the work spindlealone the grooved pulley is locked to the Emery wheel shape No. 3 is used for taking deep cuts; shapeNo. 5 for finishing the surface. The centers in work that has to be ground must be very care-fully made and held to proper shape. Hardened pieces must havecenters lapped as nearly round as possible in order to obtain goodresults. GRINDING. 245 How to Grind a Slitting Knife with Beveled 170 shows the wheel on the right of the emery wheelhead, the long slide and table at the back of the column, the hori-zontal swivel set at the angle required by the face of the knife,
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Keywords: ., bookcentury1900, bookdecade1900, bookidhardeningtem, bookyear1903
