Patent · US Expired

Document recording machines

US4110037A · kind A · utility

0Cited by
6References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateDec 16, 1976
Grant dateAug 29, 1978
Priority date
Expiry dateDec 16, 1996

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG03B27/46
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A document recording machine of the flow camera type wherein the rotatable document carrying drum is co-axial with the film carrying capstan and having the same angular velocity, an optical reduction system having the same relative reduction as the reduction of peripheral movement of the drum and capstan and a further optical system for recording a serial number from a film carrying magazine to the film and a pivotable mirror in the further optical system is operable to alternately break the two optical paths.

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