GB471703A - Improvements in or relating to ruled screens - Google Patents

Improvements in or relating to ruled screens

Info

Publication number
GB471703A
GB471703A GB29601/36A GB2960136A GB471703A GB 471703 A GB471703 A GB 471703A GB 29601/36 A GB29601/36 A GB 29601/36A GB 2960136 A GB2960136 A GB 2960136A GB 471703 A GB471703 A GB 471703A
Authority
GB
United Kingdom
Prior art keywords
ruled
layer
screens
ruling
lead sulphide
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
GB29601/36A
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 GB471703A publication Critical patent/GB471703A/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
    • G03F5/10—Screening processes; Screens therefor by projection methods using cross-line screens

Abstract

471,703. Ruled screens. ECKERLIN, H. Oct. 30, 1936, No. 29601. Convention date, Jan. 2. [Class 98 (ii)] [Also in Group XVI] In the process of producing ruled screens for photo-mechanical or optical purposes by applying a lead sulphide layer to a glass plate and ruling through this layer, a second layer consisting of a resist varnish such as is used in making ruled etched glass screens, e.g. wax and asphaltum solution, is applied to the lead sulphide layer before ruling and, after ruling, any traces of lead sulphide remaining in the ruled parts are removed by 'a solvent such as ferric chloride, the varnish layer being finally removed by a solvent such as alcohol or benzene.
GB29601/36A 1936-01-02 1936-10-30 Improvements in or relating to ruled screens Expired GB471703A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE471703X 1936-01-02

Publications (1)

Publication Number Publication Date
GB471703A true GB471703A (en) 1937-09-09

Family

ID=6541302

Family Applications (1)

Application Number Title Priority Date Filing Date
GB29601/36A Expired GB471703A (en) 1936-01-02 1936-10-30 Improvements in or relating to ruled screens

Country Status (2)

Country Link
US (1) US2123276A (en)
GB (1) GB471703A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130098A (en) * 1960-09-29 1964-04-21 Ball Brothers Co Inc Method for providing improved diffraction grated lines on glass body surface

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3040620A (en) * 1958-06-02 1962-06-26 Dresser Ind Grid ruling machine
US3215054A (en) * 1962-10-03 1965-11-02 Douglas Aircraft Co Inc Method and apparatus for producing ambient light trapping filters

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3130098A (en) * 1960-09-29 1964-04-21 Ball Brothers Co Inc Method for providing improved diffraction grated lines on glass body surface

Also Published As

Publication number Publication date
US2123276A (en) 1938-07-12

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