Arrangement for the light-projection of indicia onto X-ray films

Details Arrangement for the light-projection of indicia onto X-ray films Arrangement for the light-projection of indicia onto X-ray films

1975-03-20

1976-06-08

Smith, Alfred E.

Radiant energy

Invisible radiation responsive nonelectric signalling

Photographic type

250481, 250475, G03C 516

Patent

active

039625850

ABSTRACT:
An arrangement for the light-projection of indicia onto X-ray films, consisting of an X-ray film cassette having a window provided in a cassette wall extending in parallel with the film plane, including a magnetically-openable slide plate adapted to maintain the window in the closed position thereof in a light-sealed closeable condition, which is at least partly constituted of ferromagnetic material and is retained in a closed position by means of a resilient tongue and is supported so as to be rotatable about a pivot axis oriented perpendicularly to the film plane, a carrier for the indicia which are to be projected, and a light projecting device including a magnet at the entry path of the X-ray film cassette having its location correlated to the location of the window of the inserted X-ray film cassette.

REFERENCES:
patent: 2773436 (1956-12-01), Martin

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