Patent · US Expired

Apparatus for automatically winding up photographic paper

US4688737A · kind A · utility

6Cited by
5References
7Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 25, 1985
Grant dateAug 25, 1987
Priority date—
Expiry dateOct 25, 2005

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03D13/003
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

An apparatus for automatically winding up a photographic paper that has been photographically processed onto a take-up spool is arranged such that the leading end portion of the photographic paper is passed through the area between a pair of guide plates so as to be guided to the outer periphery of the take-up spool and is then wound up onto the spool while being pressed against the outer periphery of the spool by means of rollers respectively mounted on a pair of guide arms. These guide arms expand or separate from each other in accordance with increase in the diameter of the roll of photographic paper being wound up onto the spool.

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