Optics: image projectors – Slide transfer mechanism – For slides of various dimensions
Patent
1985-10-01
1987-06-09
Haroian, Harry N.
Optics: image projectors
Slide transfer mechanism
For slides of various dimensions
353116, 353DIG1, G03B 2304
Patent
active
046716335
ABSTRACT:
The invention relates to a slide magazine with housing, open at the top, a slide projector with a picture-changing device having a horizontally actuated slide pusher. The housing, which can be mounted immovably in the projector, has, approximately in the longitudinal center of a longitudinal wall, an opening for a slide, opposite which there is a deflector with a deflecting surface, which runs at an angle to the longitudinal center plane of the housing. In the area of the deflector, a transporting lever, which can be moved transversely to the longitudinal center plane from a resting position to a working position, and which has a working surface that works together with the slide pusher, is mounted especially so that it can be swivelled. With the transporting lever in the resting position, the working surface protrudes into the path of the slide pusher. However, when the transporting lever is in the working position, the working surface is arranged outside of this path. The transporting lever has a slide-driving surface, which is arranged at that side of the transporting lever, which is associated with the end of the deflecting surface nearer to the opening. In the working position of the transporting lever, the driving surface is shifted by a predetermined amount in the direction of the opening. On each side of the deflector, a counterpressure device, is provided for the slides. The transport of the slides is accomplished partly by means of the transporting lever and partly by means of the slide pusher from one side of the deflector to the other side of the deflector. The slides are inserted in the housing as a stack and may have different thicknesses.
REFERENCES:
patent: 2583442 (1952-01-01), Parlini
Haroian Harry N.
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen m.b.H.
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