US PATENT SUBCLASS 226 / 140
.~.~.~ By means to vary material-engagement of recessed roll

Current as of: June, 1999
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226 /   HD   ADVANCING MATERIAL OF INDETERMINATE LENGTH

120  DF  BY INTERMITTENT (INTERRUPTED) MATERIAL-MOVER {13}
137  DF  .~ Adjustable feeder {2}
139  DF  .~.~ Adjustable feed increment {2}
140.~.~.~ By means to vary material-engagement of recessed roll

DEFINITION

Classification: 226/140

(under subclass 139) Device provided with a recessed-roll* and means to modify the peripheral extent of the radially outward material-engaging portion of said recessed-roll.