Improvements in and relating to toothed gear wheels and methods of manufacturing thesame

摘要

200,491. Aktiebolaget Ljungstr÷ms Angturbin. July 5, 1922, [Convention date]. Gear-cutting. - In the production of toothed wheels, teeth of normal shape are first cut and the spaces then deepened by means of a radially disposed profiled milling cutter 7 which is traversed axially through the wheel, the profile of the cutter being preferably such that the teeth are undercut as shown.