US PATENT SUBCLASS 226 / 21
.~.~.~ Pivotally mounted roller

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.~.~.~ Pivotally mounted roller {2}
22  DF  .~.~.~.~> Responsive to pneumatic detection
23  DF  .~.~.~.~> Responsive to material-contacting element

DEFINITION

Classification: 226/21

(under subclass 18) Device wherein the support is a roll* which is oscillatable about an axis perpendicular to the axis of rotation of the roll.

(1) Note. Typical patents placed in this subclass (21) disclose photocell detector means.