Radiant energy – Luminophor irradiation – Self-luminous article
Patent
1977-11-09
1979-07-10
Church, Craig E.
Radiant energy
Luminophor irradiation
Self-luminous article
250471, G11B 100
Patent
active
041609123
ABSTRACT:
An automatic chest X-ray machine has a tray of unexposed rectangular cut film in a film-supply magazine enclosed in a light-tight housing supported in an inclined position approximtely 30.degree. from the vertical. A plunger pushes the lower portion of the tray forwardly toward a pair of vacuum suction cups which lift the top sheet of film and pull it forwardly and then upwardly forcing the upper edge of the lifted sheet of film against the upper edge of the tray and causing the sheet of film to bow outwardly. The vacuum cups then release their hold on the film and the resilience of the bowed sheet of film causes it to straighten out and drop down vertically into an open-clamp holder at the front of the machine at the exposure station. After the exposure has been made the clamping force is released, a trap door at the bottom of the holder is opened, and a pair of upper push-down fingers push the exposed sheet of film downwardly out of the holder and into one or more sets of transport rollers which transport the exposed sheet of film rearwardly and deposit it in a tray. Upon sensing arrival of a sheet of film, the tray pivots about its horizontal center axis and drops the sheet of exposed film into a chute leading to a film-developing machine.
REFERENCES:
patent: 3553453 (1971-01-01), Hogan
patent: 3784834 (1974-01-01), Berger
Church Craig E.
O'Hare Thomas P.
Spectrum X-Ray Corporation
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