83 / | HD | CUTTING |
746 | DF | BY TOOL RECIPROCABLE ALONG ELONGATED EDGE {11} |
753 | DF | .~ With tool in-feed {7} |
754 | .~.~ And auxiliary means for promoting or retarding tool in-feed {3} | |
755 | DF | .~.~.~> By yieldable means |
756 | DF | .~.~.~> And means to vary tool in-feed speed |
757 | DF | .~.~.~> With interrelated tool actuating and in-feed means |