Radiant energy – Luminophor irradiation – Self-luminous article
Patent
1974-11-22
1976-07-06
Willis, Davis L.
Radiant energy
Luminophor irradiation
Self-luminous article
250471, 250521, G11B 100
Patent
active
039683745
ABSTRACT:
An X-ray cassette holder is constructed for use with X-ray equipment to properly position a rectangular film cassette having the longitudinal axis of the cassette oriented either horizontally or vertically. The cassette is received between a pair of vertically spaced channels that are supported on a plate. A pair of levers couple the lower channel to the plate and are pivotal to adjust the spacing between the two channels. A stop plate for horizontally centering the cassette is carried on the lower channel and is moved laterally a preselected distance as the levers pivot. A switch mechanism adjusts the collimator diaphragm controls as the levers pivot to automatically conform the size and orientation of the beam to the size and orientation of the cassette.
REFERENCES:
patent: 3502878 (1970-03-01), Stewart et al.
patent: 3764808 (1973-10-01), Lackey et al.
patent: 3826922 (1974-07-01), Ingles
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