Cine projection screen

Details Cine projection screen Cine projection screen

1974-04-23

1976-03-09

Hix, L. T.

Supports

Pipe or cable

Extending through plate

248324, G03B 2156

Patent

active

039428680

ABSTRACT:
The specification describes a roll up cine projection screen comprising struts for holding it taut in the extended condition for use. It is adapted to be held on a rolling up rod or a tubular casing on a carrier and in the case of which the struts are adapted to pivot with the cine projection screen held taut by them about a horizontal axis. The screen can be secured in several angular positions by means of two pivot bearings having vertical and horizontal axis respectively.

REFERENCES:
patent: 1732489 (1929-10-01), Uckotter
patent: 1977844 (1934-10-01), Blanchard
patent: 2793687 (1957-05-01), Petrick
patent: 3233658 (1966-02-01), Riedel
patent: 3485471 (1969-12-01), McCurdy
patent: 3592255 (1971-07-01), Potter et al.
patent: 3750994 (1973-08-01), Bieschke
patent: 3750995 (1973-08-01), Genger

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