226 / | HD | ADVANCING MATERIAL OF INDETERMINATE LENGTH |
120 | DF | BY INTERMITTENT (INTERRUPTED) MATERIAL-MOVER {13} |
137 | DF | .~ Adjustable feeder {2} |
139 | .~.~ Adjustable feed increment {2} | |
140 | DF | .~.~.~> By means to vary material-engagement of recessed roll |
141 | DF | .~.~.~> By means to change length of feeder travel {1} |