Optics: image projectors – Slide transfer mechanism – Slides reciprocated horizontally
Patent
1982-02-22
1983-09-06
Marcus, Stephen
Optics: image projectors
Slide transfer mechanism
Slides reciprocated horizontally
206456, G03B 2306
Patent
active
044025840
ABSTRACT:
A dual slide tray projection system is disclosed. The projector (12) has two independently operating projection mechanisms including gates (24, 26) advancing mechanisms (28, 30, 32, 34) and lens assemblies (202, 204). The slide tray (60) includes an inner (62) an outer (64) ring. The rings are independently advanceable and selectable and are only locked together by locking mechanism (140) when the tray is removed from the projector at the 0 index position.
REFERENCES:
patent: 632649 (1899-09-01), Goldborg
patent: 662483 (1900-11-01), Young
patent: 925398 (1909-06-01), Toombs, Jr.
patent: 1349640 (1920-08-01), Trueblood
patent: 3126864 (1964-03-01), McIntosh
patent: 3225652 (1965-12-01), Sauppe
patent: 3276314 (1966-10-01), Robinson
patent: 3411845 (1968-11-01), Pester et al.
patent: 3499708 (1970-03-01), Hall
patent: 3609025 (1971-09-01), Hall
patent: 3644031 (1972-02-01), Bennett
patent: 3718392 (1973-02-01), Harvey
patent: 4232953 (1980-11-01), Alvarez-Sabater
patent: 4253789 (1981-03-01), Hultgren
patent: 4291955 (1981-09-01), Alvarez-Sabater
Magazine Article, (source unknown), Title: "Still Projectors", publishing date unknown, probably 1981.
Catalogue sheet, (source unknown), Title: "Slide Projectors", p. 157, date unknown.
Marcus Stephen
Sharp William R.
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