. American engineer and railroad journal . avels oppositeto the hands of a clock. For heavy milling a style of cutter with nicked teeth is rec-ommended, as the nicks break up the chips, thereby enabling aheavier cut to be taken than is practicable with a cutter with acontinuous cutting edge. These nicks, in the ordinary cutter, arey& in. long by li in. deep and iJ4 n- from center to center on 136 APRIL, 1909. AMERICAN ENGINEER AND RAILROAD JOURNAL. 137 surface cutters under 6 in. in diameter; on surface cutters above6 in. in diameter the nicks are Yi in. long by 3/16 in. deep andiyi in. from c
. American engineer and railroad journal . avels oppositeto the hands of a clock. For heavy milling a style of cutter with nicked teeth is rec-ommended, as the nicks break up the chips, thereby enabling aheavier cut to be taken than is practicable with a cutter with acontinuous cutting edge. These nicks, in the ordinary cutter, arey& in. long by li in. deep and iJ4 n- from center to center on 136 APRIL, 1909. AMERICAN ENGINEER AND RAILROAD JOURNAL. 137 surface cutters under 6 in. in diameter; on surface cutters above6 in. in diameter the nicks are Yi in. long by 3/16 in. deep andiyi in. from center to center. These nicks are milled in rowsaround the circumference, a row consisting in alternate ricksand teeth, as shown on the cutter in Fig. 2, a row always extend-ing around the edge of a cutter, as AA, Fig. 2, thus eliminatingbreakage of teeth. In the manufacture of inserted teeth cutters there are manyways of holding the blades in the body. The one outlined inFig. 3 is adapted for medium sized cutters for all general work,.
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
