GB474510A - Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus - Google Patents

Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus

Info

Publication number
GB474510A
GB474510A GB617037A GB617037A GB474510A GB 474510 A GB474510 A GB 474510A GB 617037 A GB617037 A GB 617037A GB 617037 A GB617037 A GB 617037A GB 474510 A GB474510 A GB 474510A
Authority
GB
United Kingdom
Prior art keywords
pivoted
rotating shutter
relating
blade
shutter blades
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
GB617037A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB617037A priority Critical patent/GB474510A/en
Publication of GB474510A publication Critical patent/GB474510A/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
    • G03B9/18—More than two members
    • G03B9/22—More than two members each moving in one direction to open and then in opposite direction to close, e.g. iris type

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Shutters For Cameras (AREA)

Abstract

474,510. Making optical shutters. JUNGHANS, H. March 2, 1937, No. 6170. [Class 83 (ii)] [Also in Group XX] The blade for a pivoted or rotating shutter is stamped from a strip of metal which is thicker at one edge than at the other and has one flat or plane face. The point of insertion a for the actuating pin and the bearing bare provided in the thick portion c<10> of the tapered blade c<1>, which may have one or both faces plane. In Fig. 4, a thickened portion d is provided for the attachment and bearing apertures a, b, the remainder of the blade being tapered.
GB617037A 1937-03-02 1937-03-02 Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus Expired GB474510A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB617037A GB474510A (en) 1937-03-02 1937-03-02 Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB617037A GB474510A (en) 1937-03-02 1937-03-02 Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus

Publications (1)

Publication Number Publication Date
GB474510A true GB474510A (en) 1937-11-02

Family

ID=9809684

Family Applications (1)

Application Number Title Priority Date Filing Date
GB617037A Expired GB474510A (en) 1937-03-02 1937-03-02 Improvements in or relating to pivoted or rotating shutter blades for photographic apparatus

Country Status (1)

Country Link
GB (1) GB474510A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401380A (en) * 1977-10-31 1983-08-30 Nippon Kogaku K.K. Blade for focal plane shutter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4401380A (en) * 1977-10-31 1983-08-30 Nippon Kogaku K.K. Blade for focal plane shutter

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