GB146143A - Improvements in and relating to photo-mechanical printing - Google Patents

Improvements in and relating to photo-mechanical printing

Info

Publication number
GB146143A
GB146143A GB17190/20A GB1719020A GB146143A GB 146143 A GB146143 A GB 146143A GB 17190/20 A GB17190/20 A GB 17190/20A GB 1719020 A GB1719020 A GB 1719020A GB 146143 A GB146143 A GB 146143A
Authority
GB
United Kingdom
Prior art keywords
screen
photo
printing
relating
movements
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
GB17190/20A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB146143A publication Critical patent/GB146143A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03F—PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES, e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTOR DEVICES; MATERIALS THEREFOR; ORIGINALS THEREFOR; APPARATUS SPECIALLY ADAPTED THEREFOR
    • G03F5/00—Screening processes; Screens therefor
    • G03F5/02—Screening processes; Screens therefor by projection methods
    • G03F5/04—Screening processes; Screens therefor by projection methods changing the screen effect
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/152—Making camera copy, e.g. mechanical negative

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Exposure And Positioning Against Photoresist Photosensitive Materials (AREA)
  • Screen Printers (AREA)

Abstract

146,143. Bassani, L. June 24, 1919, [Convention date]. Photo-mechanical printing-surfaces. - For chromo-lithography and similar printing processes, two printing-surfaces prepared from screen negatives are employed for each colour. In making one of the negatives, the screen is shifted along the lens axis, and in making the second negative the screen is displaced both axially and transversely, the two movements being preferably made simultaneously. In the camera illustrated, the movements of the screen 4 are obtained by micrometer adjusting-screws 6, 7.
GB17190/20A 1919-06-24 1920-06-24 Improvements in and relating to photo-mechanical printing Expired GB146143A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR510105T 1919-06-24
US391118A US1524499A (en) 1919-06-24 1920-06-23 Photochromographical process

Publications (1)

Publication Number Publication Date
GB146143A true GB146143A (en) 1921-09-15

Family

ID=26214659

Family Applications (1)

Application Number Title Priority Date Filing Date
GB17190/20A Expired GB146143A (en) 1919-06-24 1920-06-24 Improvements in and relating to photo-mechanical printing

Country Status (5)

Country Link
US (1) US1524499A (en)
DE (1) DE342698C (en)
FR (1) FR510105A (en)
GB (1) GB146143A (en)
NL (1) NL7253C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2473023A (en) * 1944-09-11 1949-06-14 Joseph Gelb Halftone screen holder
US3158479A (en) * 1963-03-14 1964-11-24 Pluess Lithograph Co Method of production halftones

Also Published As

Publication number Publication date
FR510105A (en) 1920-11-27
US1524499A (en) 1925-01-27
NL7253C (en) 1922-07-15
DE342698C (en) 1921-10-24

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