GB812696A - Improvements in speed governors particularly for cinematograph cameras - Google Patents
Improvements in speed governors particularly for cinematograph camerasInfo
- Publication number
- GB812696A GB812696A GB34543/55A GB3454355A GB812696A GB 812696 A GB812696 A GB 812696A GB 34543/55 A GB34543/55 A GB 34543/55A GB 3454355 A GB3454355 A GB 3454355A GB 812696 A GB812696 A GB 812696A
- Authority
- GB
- United Kingdom
- Prior art keywords
- plate
- notched
- cup
- pair
- slits
- 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
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 239000004677 Nylon Substances 0.000 abstract 1
- 229920001778 nylon Polymers 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
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)
- Braking Arrangements (AREA)
Abstract
812,696. Speed-responsive brakes. BOLSEY, J. Dec. 2, 1955 [June 17, 1955], No. 34543/55. Class 103 (1). [Also in Group XXVI] A centrifugal governor, particularly for a cinematograph camera, comprises a plate 60 notched at 62 to provide a pair of outer members 61 which are fitted with weights 65 so that, on rotation of the plate, they swing outwards and apply integral brake portions 64 to the cylindrical surface 57 of a recess 56 or aperture in part of the camera structure. The plate is preferably made of a resilient plastic, such as nylon. Modifications are described in which a cup-shaped member has a pair of slits in its wall and base so that the walls can move outwardly to rub on the flange of a stationary annular member surrounding the cup and in which a dished plate has a number of weighted sections formed by radial slits so that it tends to flatten out and increase the area of frictional engagement between the centre of the plate and a stationary collar surrounding the governor shaft. In the modification shown in Fig. 6, a number of weighted arms 72<SP>1</SP> are notched at 731 so that they can fly upwardly and apply brake shoe portions 74 to a friction plate 75 which is adjustable axially along the governor shaft by a lever 76.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US812696XA | 1955-06-17 | 1955-06-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB812696A true GB812696A (en) | 1959-04-29 |
Family
ID=22163121
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB34543/55A Expired GB812696A (en) | 1955-06-17 | 1955-12-02 | Improvements in speed governors particularly for cinematograph cameras |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB812696A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4616737A (en) * | 1981-06-03 | 1986-10-14 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Buffer device |
-
1955
- 1955-12-02 GB GB34543/55A patent/GB812696A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4616737A (en) * | 1981-06-03 | 1986-10-14 | Kabushiki Kaisha Sankyo Seiki Seisakusho | Buffer device |
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