Typewriting machines – Sheet or web – For feeding sheet from stack or pack holder
Patent
1980-11-04
1983-06-07
Wright, Jr., Ernest T.
Typewriting machines
Sheet or web
For feeding sheet from stack or pack holder
4001442, 400175, 4001961, 400208, 400629, 4006372, 4006392, 400691, 400708, 271 3, 271 65, 271DIG9, 271279, B41J 1310
Patent
active
043868649
ABSTRACT:
Printing apparatus, having a rotatable platen with a printing element in front of it and a reversible platen drive for rotating the platen counterclockwise or clockwise relative to the printing element, is operable to feed, from an upper hopper extending upwardly and rearwardly from the bottom of the platen, an unprinted sheet to the bottom of the platen and forwardly and upwardly to the front of the platen into printing position. A selector switch may be provided for selecting the direction of rotation of the platen after completion of printing so that its rotation counterclockwise moves the printed sheet upwardly and rearwardly toward the upper hopper and its rotation clockwise moves the printed sheet downwardly for sequential stacking in the lower hopper to collate successive printed sheets in their order of printing. A bail switch operable upon movement of the upper platen feed roll away from the platen may also be provided to cause the platen to rotate counterclockwise to move the leading edge of the unprinted sheet into printing position.
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patent: 4113244 (1978-09-01), Ruenzi
patent: 4164649 (1979-08-01), Anderegg et al.
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patent: 4262894 (1981-04-01), Marano
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patent: 4272205 (1981-06-01), Bisczat et al.
patent: 4285607 (1981-08-01), Steinhilber
IBM Technical Disclosure Bulletin, "Typewriter Card Feed", Allen et al., vol. 11, No. 11, Apr. 1969, pp. 1419-1420.
Crean Gerald J.
Wang An
Wang Laboratories, Inc.
Wright, Jr. Ernest T.
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