Patent · US Expired

Apparatus for collecting webs of photographic paper or the like

US4010912A · kind A · utility

10Cited by
5References
18Claims
0Family size

Assignee

Inventors

Key dates

Filing dateSep 24, 1975
Grant dateMar 8, 1977
Priority date
Expiry dateSep 24, 1995

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B1/04
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

Apparatus for collecting webs of photographic paper issuing from a photographic copying machine has a magazine which is attachable to the copying machine and contains a wheel having a slotted periphery for introduction of the leader of a web by way of a channel defined by a guide which is pivotably mounted in the magazine. The channel extends radially of the wheel during introduction of the leader so that the latter can enter the interior of the wheel. The wheel is thereupon driven to convolute the web about it periphery and to automatically propel the guide to a position in which the channel is tangential to the wheel. The guide is then intercepted and held against pivotal movement in a direction to locate the channel radially of the wheel, and the guide has a roller which rests on the outermost convolution of the roll of paper which accumulates on the wheel. The intercepting device is a spring-biased lever which allows the guide to locate the channel radially of the wheel in response to attachment of the magazine to the copying machine.

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