GB209029A - Improvements in shutters for kinematograph apparatus - Google Patents

Improvements in shutters for kinematograph apparatus

Info

Publication number
GB209029A
GB209029A GB20861/23A GB2086123A GB209029A GB 209029 A GB209029 A GB 209029A GB 20861/23 A GB20861/23 A GB 20861/23A GB 2086123 A GB2086123 A GB 2086123A GB 209029 A GB209029 A GB 209029A
Authority
GB
United Kingdom
Prior art keywords
wings
wing
shaft
blade
spring
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
GB20861/23A
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.)
Continsouza SA Ets
Original Assignee
Continsouza SA Ets
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 Continsouza SA Ets filed Critical Continsouza SA Ets
Publication of GB209029A publication Critical patent/GB209029A/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
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters
    • G03B9/10—Blade or disc rotating or pivoting about axis normal to its plane

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Air-Flow Control Members (AREA)

Abstract

209,029. Etablissements Continsouza Soc. Anon. Dec. 26, 1922, [Convention date]. Void [Published under Sect. 91 of the Act]. Kinematograph apparatus.-A shutter comprises two wings 1, 8, the wing 1 being secured to the shaft 4, and the wing 8 being secured to a collar 9 which is loose on the shaft 4 but attached thereto by a spring 11. A blade 10 is provided on the wing 8 so that the resistance of the air opposes the action of the spring 11 and causes relative movement of the wings when the shaft begins to rotate. The aperture between the wings increases with the speed of the shaft until at the maximum speed one wing lies behind the other and further relative movement is prevented by a stop 12. The spring 11 and the blade 10 may be adjustable, one or both the wings may rotate in a medium other than air, e.g. water, and the blade 10 may be replaced bv a number of blades forming a fan which in conjunction with a casing round the shutter and a suitable channel causes cool air to be discharged on to the film in the gate.
GB20861/23A 1922-12-26 1923-08-16 Improvements in shutters for kinematograph apparatus Expired GB209029A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR209029X 1922-12-26

Publications (1)

Publication Number Publication Date
GB209029A true GB209029A (en) 1924-08-14

Family

ID=8880630

Family Applications (1)

Application Number Title Priority Date Filing Date
GB20861/23A Expired GB209029A (en) 1922-12-26 1923-08-16 Improvements in shutters for kinematograph apparatus

Country Status (1)

Country Link
GB (1) GB209029A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434193A (en) * 1945-02-23 1948-01-06 Brenkert Karl Ventilating system for motionpicture machines
DE3728208A1 (en) * 1987-08-24 1989-03-09 Krupp Corpoplast Masch METHOD FOR PRODUCING A BIAXIAL-ORIENTED AND THERMO-FIXED CONTAINER

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2434193A (en) * 1945-02-23 1948-01-06 Brenkert Karl Ventilating system for motionpicture machines
DE3728208A1 (en) * 1987-08-24 1989-03-09 Krupp Corpoplast Masch METHOD FOR PRODUCING A BIAXIAL-ORIENTED AND THERMO-FIXED CONTAINER

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