(under subclass 243) Apparatus wherein the stress developed in a cutting tool by a required broaching force is divided or split-up, as distinguished from concentrated, by broach drive means effective to impart such force through the simultaneous application of a plurality of force applicator heads, e.g., push and pull heads.
(1) Note. For a patent to be placed originally in this subclass, a claimed teaching of "force distribution" must be clear.
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264, and 280+, for related structure wherein a second head engaged by the tool merely functions as a tool guide or antichatter device.
