GB1121383A - Stand construction for portable projection screen - Google Patents

Stand construction for portable projection screen

Info

Publication number
GB1121383A
GB1121383A GB1438866A GB1438866A GB1121383A GB 1121383 A GB1121383 A GB 1121383A GB 1438866 A GB1438866 A GB 1438866A GB 1438866 A GB1438866 A GB 1438866A GB 1121383 A GB1121383 A GB 1121383A
Authority
GB
United Kingdom
Prior art keywords
projection screen
portable projection
stand construction
stand
construction
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
GB1438866A
Other languages
English (en)
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.)
Radiant Manufacturing Corp
Original Assignee
Radiant Manufacturing 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 Radiant Manufacturing Corp filed Critical Radiant Manufacturing Corp
Publication of GB1121383A publication Critical patent/GB1121383A/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
    • 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
    • F16M11/105—Means for attachment of apparatus; Means allowing adjustment of the apparatus relatively to the stand allowing pivoting around a horizontal axis the horizontal axis being the roll axis, e.g. for creating a landscape-portrait rotation
    • 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
    • F16M11/16—Details concerning attachment of head-supporting legs, with or without actuation of locking members thereof
    • 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"
    • 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
    • F16M11/30—Undercarriages for supports with one single telescoping pillar with co-moving side-struts

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
GB1438866A 1965-03-31 1966-03-31 Stand construction for portable projection screen Expired GB1121383A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US44432865A 1965-03-31 1965-03-31

Publications (1)

Publication Number Publication Date
GB1121383A true GB1121383A (en) 1968-07-24

Family

ID=23764452

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1438866A Expired GB1121383A (en) 1965-03-31 1966-03-31 Stand construction for portable projection screen

Country Status (2)

Country Link
GB (1) GB1121383A (US07655688-20100202-C00109.png)
NL (1) NL6604202A (US07655688-20100202-C00109.png)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217191A (en) * 1988-04-22 1989-10-25 Michael Hung A retractable tripod
FR2631422A1 (fr) * 1988-05-16 1989-11-17 Hoshino Gakki Co Ltd Support basculant a trois pieds
GB2222363A (en) * 1988-08-29 1990-03-07 Hoshino Gakki Co Ltd Tiltable tripod stand
GB2222364A (en) * 1988-08-29 1990-03-07 Hoshino Gakki Co Ltd Adjustably tiltable tripod stand
GB2222516A (en) * 1988-08-22 1990-03-14 Hwang Sheng Chang Supporting structure

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2217191A (en) * 1988-04-22 1989-10-25 Michael Hung A retractable tripod
FR2631422A1 (fr) * 1988-05-16 1989-11-17 Hoshino Gakki Co Ltd Support basculant a trois pieds
GB2222516A (en) * 1988-08-22 1990-03-14 Hwang Sheng Chang Supporting structure
GB2222363A (en) * 1988-08-29 1990-03-07 Hoshino Gakki Co Ltd Tiltable tripod stand
GB2222364A (en) * 1988-08-29 1990-03-07 Hoshino Gakki Co Ltd Adjustably tiltable tripod stand
GB2222364B (en) * 1988-08-29 1992-05-13 Hoshino Gakki Co Ltd Adjustably tiltable tripod stand
GB2222363B (en) * 1988-08-29 1992-05-13 Hoshino Gakki Co Ltd Tiltable tripod stand
AU632497B2 (en) * 1988-08-29 1993-01-07 Hoshino Gakki Co., Ltd. Tiltable tripod stand

Also Published As

Publication number Publication date
NL6604202A (US07655688-20100202-C00109.png) 1966-10-03

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