GB370956A - Improvements in or relating to clock or like mechanism - Google Patents
Improvements in or relating to clock or like mechanismInfo
- Publication number
- GB370956A GB370956A GB75931A GB75931A GB370956A GB 370956 A GB370956 A GB 370956A GB 75931 A GB75931 A GB 75931A GB 75931 A GB75931 A GB 75931A GB 370956 A GB370956 A GB 370956A
- Authority
- GB
- United Kingdom
- Prior art keywords
- spring
- lever
- anchored
- point
- pivot
- 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
- G04—HOROLOGY
- G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
- G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
- G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
- G04C3/042—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance using mechanical coupling
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Ink Jet (AREA)
Abstract
370,956. Electric clocks. SMITH, S. J., Hollingsworth Works, Martell Road, London. Jan. 8, 1931, No. 759. [Class 139.] Balances.-In clock or like mechanism of the type in which the hair spring 5, controlling the balance wheel 4 is anchored at its inner end to the balance and at its outer end to an oscillatory member, for example, the stud-ended lever 7, Fig, 1, the pivot 8 of the latter is located eccentrically of the balance wheel pivot to reduce distortion of the spring. The point 8 is taken as the centre of a circle passing through points 9, 10, 11, Fig. 2, formed by the intersection of circles 90, 100, 110 and radial lines 12, 13, 14 corresponding to the positions of the end of the hair spring at its expanded, normal and contracted positions. Alternatively the lever 7 may be attached to a leaf spring anchored at the point 8. The electromagnetic control is similar to that described in Specification 362,518 with the exception that the trip lever 29 is reciprocated by the armature 18 instead of by the stop clicks 23, 24.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB75931A GB370956A (en) | 1931-01-08 | 1931-01-08 | Improvements in or relating to clock or like mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB75931A GB370956A (en) | 1931-01-08 | 1931-01-08 | Improvements in or relating to clock or like mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB370956A true GB370956A (en) | 1932-04-08 |
Family
ID=9710020
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB75931A Expired GB370956A (en) | 1931-01-08 | 1931-01-08 | Improvements in or relating to clock or like mechanism |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB370956A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2633056A (en) * | 1950-09-09 | 1953-03-31 | Vry Corp De | Intermittent mechanism for motion-picture projecting mechanisms |
| US2997839A (en) * | 1958-07-16 | 1961-08-29 | Hamilton Watch Co | Indexing and contact mechanism |
-
1931
- 1931-01-08 GB GB75931A patent/GB370956A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2633056A (en) * | 1950-09-09 | 1953-03-31 | Vry Corp De | Intermittent mechanism for motion-picture projecting mechanisms |
| US2997839A (en) * | 1958-07-16 | 1961-08-29 | Hamilton Watch Co | Indexing and contact mechanism |
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