GB227044A - Improvements in and relating to photographic printing machines - Google Patents

Improvements in and relating to photographic printing machines

Info

Publication number
GB227044A
GB227044A GB1407624A GB1407624A GB227044A GB 227044 A GB227044 A GB 227044A GB 1407624 A GB1407624 A GB 1407624A GB 1407624 A GB1407624 A GB 1407624A GB 227044 A GB227044 A GB 227044A
Authority
GB
United Kingdom
Prior art keywords
lamp
cylinder
supporting
relating
pulley
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB1407624A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Rotophil Lichtpausmaschine G M
Original Assignee
Rotophil Lichtpausmaschine G M
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Rotophil Lichtpausmaschine G M filed Critical Rotophil Lichtpausmaschine G M
Priority to GB1407624A priority Critical patent/GB227044A/en
Publication of GB227044A publication Critical patent/GB227044A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B27/00—Photographic printing apparatus
    • G03B27/02—Exposure apparatus for contact printing
    • G03B27/14—Details
    • G03B27/18—Maintaining or producing contact pressure between original and light-sensitive material
    • G03B27/22—Maintaining or producing contact pressure between original and light-sensitive material by stretching over a curved surface

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Rotary Presses (AREA)

Abstract

227,044. Marks, E. C. R., (Rotophil- Lichpausmasclhine Ges.). June 10, 1924. Printing-apparatus with continuous movement of negative and printed surface. - In apparatus in which a transparent hollow cylinder a is rotated by a travelling band b and a printing lamp g is raised and lowered within the cylinder a, a portion of the rope f supporting th&Iamp g extends between two supporting pulleys h in a straight line from which it is adapted to be deflected by means of a lever i acting on a displacing pulley k to enable the lamp g to be so raised that it can be swung aside. In the construction described, the lamp-supporting member d swivels in a tube d'. The pulley k can be pulled over by a cord m and winch n, o. The cylinder a and band b are mounted in a frame c.
GB1407624A 1924-06-10 1924-06-10 Improvements in and relating to photographic printing machines Expired GB227044A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1407624A GB227044A (en) 1924-06-10 1924-06-10 Improvements in and relating to photographic printing machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1407624A GB227044A (en) 1924-06-10 1924-06-10 Improvements in and relating to photographic printing machines

Publications (1)

Publication Number Publication Date
GB227044A true GB227044A (en) 1925-01-08

Family

ID=10034533

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1407624A Expired GB227044A (en) 1924-06-10 1924-06-10 Improvements in and relating to photographic printing machines

Country Status (1)

Country Link
GB (1) GB227044A (en)

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