GB429679A - Improvements in cinematograph projection screens - Google Patents

Improvements in cinematograph projection screens

Info

Publication number
GB429679A
GB429679A GB3360333A GB3360333A GB429679A GB 429679 A GB429679 A GB 429679A GB 3360333 A GB3360333 A GB 3360333A GB 3360333 A GB3360333 A GB 3360333A GB 429679 A GB429679 A GB 429679A
Authority
GB
United Kingdom
Prior art keywords
threads
screen
projection screens
webbing
dressings
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
GB3360333A
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.)
EDWARD GEORGE TURNER
Original Assignee
EDWARD GEORGE TURNER
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 EDWARD GEORGE TURNER filed Critical EDWARD GEORGE TURNER
Priority to GB3360333A priority Critical patent/GB429679A/en
Publication of GB429679A publication Critical patent/GB429679A/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
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/54—Accessories
    • G03B21/56—Projection screens
    • G03B21/565—Screens allowing free passage of sound

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

429,679. Projection screens. TURNER, E. G., 72, Minchenden Crescent, Southgate, London. Nov. 30, 1933, Nos. 33603 and 35704. [Class 97 (i)] Threads of asbestos having a copper or other wire core are woven so as to form a projection screen having numerous small apertures between the threads. The threads are formed by twisting, winding, or braiding, asbestos fibres round the wire, and may be woven in groups in the manner described in Specification 429,699. The edges of the screen may have a webbing border carrying metal eyelets, or the threads may be arranged close together at the edges, the webbing being dispensed with. The screen may have light-reflecting and dirtprotective dressings ; the dressings may be such as to be removable without damage to the threads.
GB3360333A 1933-11-30 1933-11-30 Improvements in cinematograph projection screens Expired GB429679A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3360333A GB429679A (en) 1933-11-30 1933-11-30 Improvements in cinematograph projection screens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3360333A GB429679A (en) 1933-11-30 1933-11-30 Improvements in cinematograph projection screens

Publications (1)

Publication Number Publication Date
GB429679A true GB429679A (en) 1935-05-30

Family

ID=10355064

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3360333A Expired GB429679A (en) 1933-11-30 1933-11-30 Improvements in cinematograph projection screens

Country Status (1)

Country Link
GB (1) GB429679A (en)

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