Patent · US Expired

Method of and arrangement for gripping starting portion of coiled film

US5249754A · kind A · utility

7Cited by

10References

12Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Traugott Liermann · Unterhaching, DE
Franz Nadler · Neustadt an der Aisch, DE
Jurgen Risser · Neufahrn, DE

Key dates

Filing date	Apr 27, 1992
Grant date	Oct 5, 1993
Priority date	—
Expiry date	Apr 27, 2012

Classification

Technology area (CPC G)Physics
CPC primaryG03B1/58
WIPO fieldOptics
WIPO sectorInstruments

Abstract

For lifting and grasping a starting portion of a film located in a coil, the method includes driving a coil by a friction wheel abutting against an outer surface of the coil with an end edge of a starting portion of the coil located arbitrarily on the outer surface, placing a separating wedge under a prestress on the outer surface of the coil and lifting the starting portion of the film from the coil by an edge of the separating wedge, and first turning the coil against a latter uncoiling direction, and after a recognition of a position of the end edge of the starting portion of the film turning the coil in the uncoiling direction.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.