GB1144857A - Stand for projection screen - Google Patents

Stand for projection screen

Info

Publication number
GB1144857A
GB1144857A GB9547/67A GB954767A GB1144857A GB 1144857 A GB1144857 A GB 1144857A GB 9547/67 A GB9547/67 A GB 9547/67A GB 954767 A GB954767 A GB 954767A GB 1144857 A GB1144857 A GB 1144857A
Authority
GB
United Kingdom
Prior art keywords
rod
screen
post
brackets
projection screen
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
GB9547/67A
Inventor
Percy Frederick Albee
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.)
Q Panel Corp
Original Assignee
Q Panel Corp
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 Q Panel Corp filed Critical Q Panel Corp
Priority to GB9547/67A priority Critical patent/GB1144857A/en
Priority to FR97355A priority patent/FR1513035A/en
Publication of GB1144857A publication Critical patent/GB1144857A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/26—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by telescoping, with or without folding
    • F16M11/28—Undercarriages for supports with one single telescoping pillar
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/04—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand
    • F16M11/06—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting
    • F16M11/10—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/20—Undercarriages with or without wheels
    • F16M11/24—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other
    • F16M11/242—Undercarriages with or without wheels changeable in height or length of legs, also for transport only, e.g. by means of tubes screwed into each other by spreading of the legs
    • F16M11/245—Members limiting spreading of legs, e.g. "umbrella legs"
    • 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

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Overhead Projectors And Projection Screens (AREA)

Abstract

1,144,857. Stands. Q-PANEL CORP. 28 Feb., 1967, No. 9547/67. Heading A4H. [Also in Division G2] A collapsible stand for a projection screen has a vertical post 10, the base portion of which forms one leg of a tripod support and telescopically receives an adjustable rod 11, two other legs 17, 18 being pivoted to a fixed collar 12 on the post and attached through pivoting brace arms 19, 20 to a second collar slidably mounted on the post below the first. The screen is mounted on arcuate rods (46), Fig. 6 (not shown), slidable in brackets (34, 35) to permit angular adjustment of the screen. The brackets are carried by a frame pivotally secured to rod (11) and braced by diagonal struts from the rod. These struts may be released to permit rotation of the frame to a storage position. To give a low centre of gravity, steel arms 19, 20 are used, with aluminium construction elsewhere.
GB9547/67A 1967-02-28 1967-02-28 Stand for projection screen Expired GB1144857A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB9547/67A GB1144857A (en) 1967-02-28 1967-02-28 Stand for projection screen
FR97355A FR1513035A (en) 1967-02-28 1967-03-03 Folding Projection Screen Tripod

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9547/67A GB1144857A (en) 1967-02-28 1967-02-28 Stand for projection screen
FR97355A FR1513035A (en) 1967-02-28 1967-03-03 Folding Projection Screen Tripod

Publications (1)

Publication Number Publication Date
GB1144857A true GB1144857A (en) 1969-03-12

Family

ID=27624129

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9547/67A Expired GB1144857A (en) 1967-02-28 1967-02-28 Stand for projection screen

Country Status (2)

Country Link
FR (1) FR1513035A (en)
GB (1) GB1144857A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109027542A (en) * 2018-09-20 2018-12-18 西安翔辉航空科技有限公司 A kind of display screen connecting bracket and attaching method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109027542A (en) * 2018-09-20 2018-12-18 西安翔辉航空科技有限公司 A kind of display screen connecting bracket and attaching method thereof
CN109027542B (en) * 2018-09-20 2024-03-22 西安翔辉机电科技有限责任公司 Display screen connecting support and connecting method thereof

Also Published As

Publication number Publication date
FR1513035A (en) 1968-02-09

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