Photocopying – Projection printing and copying cameras – Copying both sides of original
Patent
1975-07-18
1976-10-26
Wintercorn, Richard A.
Photocopying
Projection printing and copying cameras
Copying both sides of original
271 65, 355 65, 355 76, G03B 2732, G03B 2752, B65H 2966
Patent
active
039880621
ABSTRACT:
A recorder, as for photographing original documents on microfiche, the documents selectively having information on one or both sides, which information is to be successively recorded at high speed. After initial transport by a feed belt, a first vacuum-retaining belt having document-present actuated controls moves the document to a photographing position. Thereafter this belt is reversed in direction and the document is taken from the first belt to a second vacuum-retaining belt by pneumatic force. Adhering to the second belt, the document is rotated 180.degree., side for side, and discharged again to the first belt. A second forward motion of the first belt returns the document to the photographing station, second side up. Further forward motion discharges the document. The images upon the fiche have the same orientation for both sides of the document for easy reading. Typically, one-sided documents are turned over, but are not photographed on the second (blank) side. An electronic logic system of the state counter type correlates the several steps of document handling.
REFERENCES:
patent: 2472931 (1949-06-01), Yohn
patent: 3227444 (1966-01-01), Egan
patent: 3288464 (1966-11-01), Thompson
patent: 3575507 (1971-04-01), Varson et al.
IBM Technical Disclosure Bulletin, vol. 14 No. 5, Oct. 1971, "Document Feed", Roger et al., p. 1547.
Burton John S.
Whitney Ronald L.
Lubcke Harry R.
Terminal Data Corporation
Wintercorn Richard A.
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