Combined photographic enlarger and print developing tray

Photocopying – Projection printing and copying cameras – With developing

Patent

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Details

354307, 354337, 355 32, 355 44, G03B 2732, G03B 2752, G03D 1700

Patent

active

045154686

ABSTRACT:
A light-tight, elongated, hollow tapered wall base to which a slide housing is movably connected. The slide housing includes a light source which produces a light beam which passes through a filter assembly and a lens assembly to the bottom of the base. A photographic transparency is to be mounted within a slide holder which in turn is movably located in a close fitting relationship within a slide receiving station. The slide receiving station is formed within the slide housing between the filter assembly and the lens assembly. Removably connected to the bottom of the base is a photographic print tray assembly. The photographic print tray assembly includes a focusing target. The image projected from the photographic transparency is to be observed on the focusing target by a view port which is formed within the base. At the desired time, the focusing target is to be removed and the projected image utilized to expose an unexposed photographic print which has previously been incorporated within the photographic print tray assembly.

REFERENCES:
patent: 312937 (1885-02-01), Walker
patent: 722052 (1903-03-01), Sloan
patent: 891347 (1908-06-01), Kroedel
patent: 1036557 (1912-08-01), Peters et al.
patent: 1088030 (1914-02-01), Leeds
patent: 2930306 (1960-03-01), Goodman
patent: 3465664 (1969-09-01), Bochman
patent: 3644036 (1972-02-01), Canfield
patent: 3722394 (1973-03-01), Sebastian
patent: 3890043 (1975-06-01), Pramstraller
patent: 3903540 (1975-09-01), Hampl
patent: 3923394 (1975-12-01), Frankiewicz
patent: 4104671 (1978-08-01), Harrigan
patent: 4117501 (1978-09-01), Peck
patent: 4128333 (1978-12-01), Levin et al.
patent: 4138689 (1979-02-01), Montalbano
patent: 4143976 (1979-03-01), Paterson et al.
patent: 4157868 (1979-06-01), Needleman
patent: 4222655 (1980-09-01), Norris
patent: 4239376 (1980-12-01), Wyller
patent: 4332455 (1982-06-01), Stettner

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