. Automotive industries . Owing to the rigidity of the ma-chine, the degree of accuracy demanded in automo-bile ring gears is secured even though roughing andfinishing cuts are taken at the same time. Takingroughing and finishing cuts simultaneously of coursegreatly increases the rate of production. All the opera-tions described can be performed in practically the sametime it takes for a roughing cut across the long frontface, and the largest sizes of automobile ring gears areput through at the rate of 12 to 15 per hour. Fig. 5 shows one of these ring gears held in positionby an air-operated f
. Automotive industries . Owing to the rigidity of the ma-chine, the degree of accuracy demanded in automo-bile ring gears is secured even though roughing andfinishing cuts are taken at the same time. Takingroughing and finishing cuts simultaneously of coursegreatly increases the rate of production. All the opera-tions described can be performed in practically the sametime it takes for a roughing cut across the long frontface, and the largest sizes of automobile ring gears areput through at the rate of 12 to 15 per hour. Fig. 5 shows one of these ring gears held in positionby an air-operated fixture of the type shown in detail inFig. 7. Hand-operated devices are sometimes used for Fig. 8—Tool arrange-ment for machining hubflange in Hartness lathe. TOOL LAYOUT FOR HUB FLANGESSIZES 8} TO Xb HARTNESS AUTOMATIC LATHE
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Keywords: ., bookcentury1800, bookdecade1890, booksubjectaeronautics, bookyear
