GB631916A - Improvements in connection with photo-copying machines - Google Patents

Improvements in connection with photo-copying machines

Info

Publication number
GB631916A
GB631916A GB2452147A GB2452147A GB631916A GB 631916 A GB631916 A GB 631916A GB 2452147 A GB2452147 A GB 2452147A GB 2452147 A GB2452147 A GB 2452147A GB 631916 A GB631916 A GB 631916A
Authority
GB
United Kingdom
Prior art keywords
photo
connection
cylinder
copying machines
photographic
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
GB2452147A
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.)
FRANK GEORGE FAUX
Hall Harding Ltd
Original Assignee
FRANK GEORGE FAUX
Hall Harding Ltd
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 FRANK GEORGE FAUX, Hall Harding Ltd filed Critical FRANK GEORGE FAUX
Priority to GB2452147A priority Critical patent/GB631916A/en
Publication of GB631916A publication Critical patent/GB631916A/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

Abstract

631,916. Photographic contact-printing apparatus. HALL, HARDING, Ltd., BUNGAY, J. A., and FAUX, F. G. Sept. 5, 1947, No. 24521. Drawings to Specification. [Class 98 (ii)] In photographic contact-printing apparatus of the type in which the original and the photographic sensitive material are passed between a rotatable transparent cylinder enclosing a light source and an endless band, the cylinder is rotated at a speed different from that of the endless band to prevent imperfections in the cylinder being recorded on the sensitive material.
GB2452147A 1947-09-05 1947-09-05 Improvements in connection with photo-copying machines Expired GB631916A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2452147A GB631916A (en) 1947-09-05 1947-09-05 Improvements in connection with photo-copying machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2452147A GB631916A (en) 1947-09-05 1947-09-05 Improvements in connection with photo-copying machines

Publications (1)

Publication Number Publication Date
GB631916A true GB631916A (en) 1949-11-11

Family

ID=10212955

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2452147A Expired GB631916A (en) 1947-09-05 1947-09-05 Improvements in connection with photo-copying machines

Country Status (1)

Country Link
GB (1) GB631916A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466036A1 (en) * 1979-09-26 1981-03-27 Hansa Technik Gmbh PHOTO-CALCING APPARATUS

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2466036A1 (en) * 1979-09-26 1981-03-27 Hansa Technik Gmbh PHOTO-CALCING APPARATUS

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