Spur and bevel gearing; a treatise on the principles, dimensions, calculation, design and strength of spur and bevel gearing, together with chapters on special tooth forms and methods of cutting gear teeth (1914)
New York, The Industrial press; [etc., etc.] · leaf 188
uld not be true. To produce an accurate castellated hole,as shown by Fig. 8, in nickel steel, it is necessary to use aboutten roughing broaches and one finishing broach, especially whenthis operation is to be performed to very fine limits, as in thecase of the gears in question. The last four teeth… … Fig. 8. Completed Gear, shown in Progress of Evolution inFigs. 3. 5 and 7 ing ones the pilot should be a sliding fit in the hole produced bythe previous broach, and should at the same time be locatedfrom the castellations. The finishing broach should have a piece at the rear end,about 3 inches…
Gearing
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