GB191415273A - Types for Typewriters and Typographical Setting Machines used in the Direct Reproduction of Images transmitted by means of ordinary Telegraphic Apparatus. - Google Patents

Types for Typewriters and Typographical Setting Machines used in the Direct Reproduction of Images transmitted by means of ordinary Telegraphic Apparatus.

Info

Publication number
GB191415273A
GB191415273A GB191415273DA GB191415273A GB 191415273 A GB191415273 A GB 191415273A GB 191415273D A GB191415273D A GB 191415273DA GB 191415273 A GB191415273 A GB 191415273A
Authority
GB
United Kingdom
Prior art keywords
types
printing
typographical
typewriters
dots
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 - Lifetime
Application number
Inventor
Ellero Umberto
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 of GB191415273A publication Critical patent/GB191415273A/en
Application filed by Individual filed Critical Individual
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4058—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern with details for producing a halftone screen at an oblique angle

Abstract

15,273. Ellero, U. June 25, 1913, [Convention date]. Void. [Published under Section 91 of the Act.] Types.-Sets of types for printing dots to build up pictures in systems of facsimile telegraphy, comprise types f o r printing graded shades and outlines. For use in typecomposing machines, the types are rectangular and are provided with twelve dots formed by arcs, the dots on the types for printing uniform shades being of the same size and the dots on the types, such as are shown in Fig. 30, for printing graded shades being of two different sizes and arranged in various groupings.
GB191415273D 1913-06-25 1914-06-25 Types for Typewriters and Typographical Setting Machines used in the Direct Reproduction of Images transmitted by means of ordinary Telegraphic Apparatus. Expired - Lifetime GB191415273A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT191415273X 1913-06-25

Publications (1)

Publication Number Publication Date
GB191415273A true GB191415273A (en)

Family

ID=32587834

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191415273D Expired - Lifetime GB191415273A (en) 1913-06-25 1914-06-25 Types for Typewriters and Typographical Setting Machines used in the Direct Reproduction of Images transmitted by means of ordinary Telegraphic Apparatus.

Country Status (1)

Country Link
GB (1) GB191415273A (en)

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