Toy film viewer and method of making same

Details Toy film viewer and method of making same Toy film viewer and method of making same

1997-06-13

1998-09-01

Dowling, William

Optics: image projectors

Slide transfer mechanism

Slides fixed to movable carrier

353DIG2, 40364, G03B 2114

Patent

active

058000348

ABSTRACT:
A manually operated toy film viewer of simple design for viewing an 8 millimeter film loop contained within the housing of the viewer. In operating the toy film viewer, the loop of 8 millimeter film is controllably moved past a viewing aperture by a manual crank handle which is rotatably connected to one side of the hollow housing. The apparatus includes a feed sprocket, a spring biased shutter, a simple optical lens and a translucent screen disposed within a small window which is located opposite the viewing aperture and in close proximity with the film loop. Both the drive sprocket and the shutter of the film viewer are operated by the hand crank which car be easily manipulated by the child to controllably advance the film past the viewing aperture.

REFERENCES:
patent: 1957378 (1934-05-01), Zimmerman
patent: 3756706 (1973-09-01), Klynn
patent: 4591238 (1986-05-01), Kitaoka et al.

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