Photocopying – Projection printing and copying cameras – Detailed holder for original
Patent
1988-11-22
1990-06-05
Griffin, Donald A.
Photocopying
Projection printing and copying cameras
Detailed holder for original
G03B 2762
Patent
active
049318314
ABSTRACT:
In a photographic copy and enlarging apparatus, a film stage is located on a work table. A transportation means for the film comprises a film transport roller placed on the film stage. As viewed in the direction of the film transport, a front and a rear clamping device are provided for the film. The clamping devices are laid out so that they lead to the formation of a loop by the film being held, whereby the length of the film hanging laterally from the work table is shortened by at least one half and does not contact the floor. The clamping devices permit the film transport means to clamp the front end of the film in the rear clamping device and to draw the rear end of the film from the front clamping device.
REFERENCES:
patent: 3369449 (1968-02-01), Klauss et al.
patent: 3488120 (1970-01-01), Nagel
patent: 3542471 (1970-11-01), Dubny
patent: 3942154 (1976-03-01), Akami et al.
patent: 4080063 (1978-03-01), Stemmle
patent: 4087172 (1978-05-01), Van Dongen
patent: 4092067 (1978-05-01), Grossmann
patent: 4101216 (1978-07-01), Grossmann
patent: 4150894 (1979-04-01), Meyer et al.
patent: 4166588 (1979-09-01), Krehbiel et al.
patent: 4270861 (1981-06-01), Beckman
patent: 4279505 (1981-07-01), Ursprung et al.
patent: 4344708 (1982-08-01), Tokuda
patent: 4422752 (1983-12-01), Thurm et al.
patent: 4589766 (1986-05-01), Fursich et al.
patent: 4610537 (1986-09-01), Matsumoto
patent: 4666306 (1987-05-01), Matsumoto
patent: 4676628 (1987-06-01), Asbury, III
patent: 4757351 (1988-07-01), Birgmeir
patent: 4779987 (1988-10-01), Umemoto et al.
European Search Report No. 9-16717/17188 2/1989.
"Methoden der Mustererkennung", cover page, Frankfurt/Main, Akad. Verlagsgesellschaft, 1974.
"Detection, Estimation and Modulation Theory", cover page, Van, Trees, New York, Wiley, 1968.
"The Reproduction of Color", p. 284, by R. W. G. Hunt.
"1987 CCD DataBook", p. 232.
Search Report-4848/87-2 Swiss 9/1988.
Knecht Hugo
Luscher Rene
Ciba-Geigy Corporation
Griffin Donald A.
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