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GB1254398A - Shutter control mechanism - Google Patents

Shutter control mechanism

Info

Publication number
GB1254398A
GB1254398A GB1719670A GB1719670A GB1254398A GB 1254398 A GB1254398 A GB 1254398A GB 1719670 A GB1719670 A GB 1719670A GB 1719670 A GB1719670 A GB 1719670A GB 1254398 A GB1254398 A GB 1254398A
Authority
GB
United Kingdom
Prior art keywords
control lever
lever
cam
blade
exposure
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
GB1719670A
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.)
Hattori Tokeiten KK
Original Assignee
Hattori Tokeiten KK
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 Hattori Tokeiten KK filed Critical Hattori Tokeiten KK
Publication of GB1254398A publication Critical patent/GB1254398A/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)
  • Shutters For Cameras (AREA)
  • Exposure Control For Cameras (AREA)

Abstract

1,254,398. Photographic shutters. HATTORI TOKEITEN K. K. April 10, 1970 [April 26, 1969], No.17196/70. Heading G2A. A shutter blade 5 is driven from a position where it covers an exposure aperture 1a to an open position by impact of a driving lever 7, a cam face 4b of sector lever 4 contacting a projection 19a of a control lever 19 to cause reciprocation of the blade 5 to its initial position. The blade returns unimpeded with the control lever set by rotatable cam 22 as shown to give the shortest exposure time. Engagement of pawl 24 with steplike projections 22b, 22c give successively longer exposure times since on return of sector lever 4, cam surface 4a thereof engages projection 19b of control lever 19, the engagement being destroyed only after rotation of control lever 19 and cam 22 has taken place under action of spring 18. The position of pawl 24 is adjusted manually or by an exposure meter.
GB1719670A 1969-04-26 1970-04-10 Shutter control mechanism Expired GB1254398A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3199069A JPS50922B1 (en) 1969-04-26 1969-04-26

Publications (1)

Publication Number Publication Date
GB1254398A true GB1254398A (en) 1971-11-24

Family

ID=12346343

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1719670A Expired GB1254398A (en) 1969-04-26 1970-04-10 Shutter control mechanism

Country Status (3)

Country Link
JP (1) JPS50922B1 (en)
DE (1) DE2019777A1 (en)
GB (1) GB1254398A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DD231862A1 (en) * 1984-08-10 1986-01-08 Pentacon Dresden Veb ELECTROMAGNETIC CLOSURE

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1961870A1 (en) * 1969-12-10 1971-06-16 Fritz Boelcker Swivel joint for pipelines, with exchangeable sliding rings and seals; seals that are not in direct contact with the flow medium

Also Published As

Publication number Publication date
JPS50922B1 (en) 1975-01-13
DE2019777A1 (en) 1971-01-07

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