Arrangement for unloading and loading of x-ray film cassettes

US4819317A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Walter Bauer · Munich, DE
• Manfred Schmidt · Krefeld, DE
• Herbert Plaschke · Gernlinden, DE
• Otto Butz · Munich, DE

Key dates

• Filing date: Oct 28, 1987
• Grant date: Apr 11, 1989
• Expiry date: Oct 28, 2007

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T29/53465
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

An arrangement for unloading and loading of x-ray sheet film cassettes of standardized but different sizes of their flat sides which also can be used for receiving different sheet film sorts and reloadable with respective sheet film sorts, comprises a light-tight closeable shaft for receiving a cassette, transporting unit for inserting and withdrawing of the cassettes, unit for positioning the cassette at a cassette corner which is the same for all cassettes, a mechanically-electronic comparison device for determining the format of a cassette, an opening device for the cassette, unit for withdrawing a film and inserting of a new film into the cassette, and unit for automatically distinguishing of cassette types with the same sizes or size regions and loadable with different film sorts and including at least one outwardly sensible marking provided on the cassettes of at least one type, at least one sensor arranged to sense the marking with a positioned cassette, and a comparison device which is connected for the sensor for automatic selection of a sheet film size or sort for further loading.