Apparatus for removing strips of photosensitive material from flat envelopes

US4586311A · kind A · utility

Assignee

• Agfa-Gevaert NV · BE

Inventors

• Walter Becherer · Munich, DE
• Erwin Geyken
• Nikolaus Jelinek · Munich, DE
• Franz Lechner · Grafing, DE
• Helmut Schausberger

Key dates

• Filing date: May 25, 1983
• Grant date: May 6, 1986
• Expiry date: May 25, 2003

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T83/6587
• WIPO field: Optics
• WIPO sector: Instruments

Abstract

Apparatus for removing strips of X-ray film from elongated flat envelopes, wherein the film is flanked by two foils of lead, has a table supporting two blade-like tools whose tips can be introduced into the open front end of an envelope so that each tool enters between a panel of the envelope and the outer side of the respective foil. The envelope is then advanced lengthwise so that the tools penetrate deeper into its interior whereby the envelope is severed along opposite marginal portions of the film by knives which are mounted on one of the tools. One of the panels is introduced into the nip of two advancing rolls downstream of the knives so that the one panel then pulls the envelope forwardly and the envelope is automatically opened by the knives. The leader of the exposed film is connected to the core of a reel which is driven in synchronism with the advancing rolls so that the film is convoluted onto the core of the reel. The separated panels of the envelope are deflected into a bin and the foils are caused to descend by gravity into collecting receptacles between the tools and the reel. The knives have cutting edges which are inclined with reference to the direction of advan…