US PATENT SUBCLASS 226 / 23
.~.~.~.~ Responsive to material-contacting element

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

10  DF  WITH MATERIAL-RESPONSIVE CONTROL MEANS {7}
15  DF  .~ To position material laterally {3}
18  DF  .~.~ By shiftable material support {2}
21  DF  .~.~.~ Pivotally mounted roller {2}
23.~.~.~.~ Responsive to material-contacting element

DEFINITION

Classification: 226/23

(under subclass 21) Device wherein the detection means comprises a machine part, other than the support, which abuts the material, whereby said part is moved if the material

deviated laterally* from its desired longitudinal* direction.