226 / | HD | ADVANCING MATERIAL OF INDETERMINATE LENGTH |
52 | DF | MEANS TO ENGAGE LONGITUDINALLY SPACED MODIFICATIONS IN MATERIAL {8} |
76 | DF | .~ Rotating sprocket (e.g., pin-wheel) {6} |
80 | .~.~ With means to disengage material from prong(s) {1} | |
81 | DF | .~.~.~> By supplementary movement of prong(s) |