GB860530A - Improvements in or relating to lens focusing mechanism - Google Patents
Improvements in or relating to lens focusing mechanismInfo
- Publication number
- GB860530A GB860530A GB33385/59A GB3338559A GB860530A GB 860530 A GB860530 A GB 860530A GB 33385/59 A GB33385/59 A GB 33385/59A GB 3338559 A GB3338559 A GB 3338559A GB 860530 A GB860530 A GB 860530A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- fixed contacts
- relating
- oct
- engages
- 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
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
- G03B19/00—Cameras
- G03B19/18—Motion-picture cameras
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Abstract
860,530. Retractive switches. KODAK Ltd. Oct. 1, 1959 [Oct. 1, 1958], No. 33385/59. Class 38 (5). [Also in Group XX] An electric switch for remote focusing control of an optical slide projector (see Group XX) comprises an insulating plate 16a carrying a conductive plate 16c which is connected to one side of the mains supply 15 and can pivot about 16b against springs 17, 18. Clockwise pivotal movement of plate 16c engages it with fixed contacts 21, 22, whereas anti-clockwise movement of the plate engages it with fixed contacts 19, 20. In another form, the switch 16 incorporates only two fixed contacts for engagement by the conductive plate 16c.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE860530X | 1958-10-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB860530A true GB860530A (en) | 1961-02-08 |
Family
ID=6792160
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB33385/59A Expired GB860530A (en) | 1958-10-01 | 1959-10-01 | Improvements in or relating to lens focusing mechanism |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB860530A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3263558A (en) * | 1961-05-22 | 1966-08-02 | Sawyers Inc | Focusing means for a slide projector |
-
1959
- 1959-10-01 GB GB33385/59A patent/GB860530A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3263558A (en) * | 1961-05-22 | 1966-08-02 | Sawyers Inc | Focusing means for a slide projector |
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