GB729362A - Improvements connected with projection screens - Google Patents

Improvements connected with projection screens

Info

Publication number
GB729362A
GB729362A GB557853A GB557853A GB729362A GB 729362 A GB729362 A GB 729362A GB 557853 A GB557853 A GB 557853A GB 557853 A GB557853 A GB 557853A GB 729362 A GB729362 A GB 729362A
Authority
GB
United Kingdom
Prior art keywords
screen
projection screens
pivoted
improvements connected
inturned
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
GB557853A
Inventor
Cyril Robert Hunter
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.)
R F HUNTER Ltd
Original Assignee
R F HUNTER 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 R F HUNTER Ltd filed Critical R F HUNTER Ltd
Priority to GB557853A priority Critical patent/GB729362A/en
Publication of GB729362A publication Critical patent/GB729362A/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
    • G03B21/58—Projection screens collapsible, e.g. foldable; of variable area

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

729,362. Projection screens. HUNTER, Ltd., R. F. May 21, 1954 [Feb. 27, 1953], No. 5578/53. Class 97 (1). A screen is mounted on a stand E carrying a hook F by which the screen may be held extended in a vertical position, there being also provided a pivoted member H which may be swung forwardly and which carries a number of notches K in one of which the eye G, attached to the screen may be engaged to hold the screen in a tilted position. Members H<SP>1</SP> are secured on either side of the member H and are pivoted to the member E, being also inturned at L to form stops.
GB557853A 1953-02-27 1953-02-27 Improvements connected with projection screens Expired GB729362A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB557853A GB729362A (en) 1953-02-27 1953-02-27 Improvements connected with projection screens

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB557853A GB729362A (en) 1953-02-27 1953-02-27 Improvements connected with projection screens

Publications (1)

Publication Number Publication Date
GB729362A true GB729362A (en) 1955-05-04

Family

ID=9798749

Family Applications (1)

Application Number Title Priority Date Filing Date
GB557853A Expired GB729362A (en) 1953-02-27 1953-02-27 Improvements connected with projection screens

Country Status (1)

Country Link
GB (1) GB729362A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205772A (en) * 1961-11-16 1965-09-14 Radiant Mfg Corp Keystone eliminator for portable projection screens
DE2215769A1 (en) * 1972-03-30 1973-11-08 Mechanische Weberei Gmbh LIGHT IMAGE PROJECTION WALL
US4790092A (en) * 1986-01-17 1988-12-13 Farmer Kenneth R Display sign
EP0646749A1 (en) * 1993-09-07 1995-04-05 Reflecta Gmbh Foto Film Projektion Floor lamp with integrated projection screen
ITVR20130125A1 (en) * 2013-05-24 2014-11-25 Screen Line Srl FRAME FOR SCREENS FOR VIDEO PROJECTION

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3205772A (en) * 1961-11-16 1965-09-14 Radiant Mfg Corp Keystone eliminator for portable projection screens
DE2215769A1 (en) * 1972-03-30 1973-11-08 Mechanische Weberei Gmbh LIGHT IMAGE PROJECTION WALL
US4790092A (en) * 1986-01-17 1988-12-13 Farmer Kenneth R Display sign
EP0646749A1 (en) * 1993-09-07 1995-04-05 Reflecta Gmbh Foto Film Projektion Floor lamp with integrated projection screen
ITVR20130125A1 (en) * 2013-05-24 2014-11-25 Screen Line Srl FRAME FOR SCREENS FOR VIDEO PROJECTION

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