US PATENT SUBCLASS 271 / 261
.~.~.~.~ Laterally spaced sensors (e.g., to sense misalignment)

Current as of: June, 1999
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271 /   HD   SHEET FEEDING OR DELIVERING

8.1  DF  FEEDING {8}
256  DF  .~ With means to interrupt feeding {2}
258.01  DF  .~.~ Responsive to sheet sensor {6}
259  DF  .~.~.~ Plural sensors {2}
261.~.~.~.~ Laterally spaced sensors (e.g., to sense misalignment)

DEFINITION

Classification: 271/261

(under subclass 259) Device wherein the detecting means are located across the direction of travel of the sheets.

(1) Note. This subclass is for a device wherein a succession of rectangular sheets are travelling along a direction perpendicular to their front or leading edges. If the front edge is inclined to that direction rather than

perpendicular thereto, one corner of the front edge will pass one of the detectors before the other corner passes a respectively located detector, and this will activate the feed-interrupter so that misalignment can be corrected. This operation is distinguishable from front alignment provided for in another subclass (see search note below).

SEE OR SEARCH THIS CLASS, SUBCLASS:

226+, providing for front alignment of sheets, and see (1) Note above.