GB1436578A - Clockwork lever escapements - Google Patents
Clockwork lever escapementsInfo
- Publication number
- GB1436578A GB1436578A GB2677973A GB2677973A GB1436578A GB 1436578 A GB1436578 A GB 1436578A GB 2677973 A GB2677973 A GB 2677973A GB 2677973 A GB2677973 A GB 2677973A GB 1436578 A GB1436578 A GB 1436578A
- Authority
- GB
- United Kingdom
- Prior art keywords
- unit
- june
- flange
- integral
- moulded
- 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
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B17/00—Mechanisms for stabilising frequency
- G04B17/04—Oscillators acting by spring tension
- G04B17/06—Oscillators with hairsprings, e.g. balance
- G04B17/063—Balance construction
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electromechanical Clocks (AREA)
- Gears, Cams (AREA)
- Electric Clocks (AREA)
Abstract
1436578 Timepiece escapements BUNKER RAMO CORP 5 June 1973 [5 June 1972] 26779/73 Heading G3T A unit 21 for mounting on a balance shaft 14 comprises a guard roller 22 on one side of a flange 25 from the other side of which projects an impulse pin 28. Bore 24 is formed as a friction fit on the balance shaft so that the unit may be turned to set the escapement in beat, allowing the inner end of hairspring 34 to be welded or cemented to a boss 35 integral with the shaft. The unit is moulded from plastics or metal powder and co-operates with a similarly moulded pallet lever (19) Figs. 1 and 2 (not shown) having a finger (33) and fork (32) to engage notch 23 and the pin 28, and integral pallet pins (31). The flange 25 gives a designed unbalance as described in Specification 1380767.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US25986372A | 1972-06-05 | 1972-06-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1436578A true GB1436578A (en) | 1976-05-19 |
Family
ID=22986741
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2677973A Expired GB1436578A (en) | 1972-06-05 | 1973-06-05 | Clockwork lever escapements |
Country Status (6)
Country | Link |
---|---|
US (1) | US3791251A (en) |
JP (1) | JPS537819B2 (en) |
CA (1) | CA977164A (en) |
DE (1) | DE2328319A1 (en) |
FR (1) | FR2188209B1 (en) |
GB (1) | GB1436578A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3108196A1 (en) * | 1981-03-04 | 1982-09-16 | Parrenin S.A., 25130 Villers-le-Lac | Device which forms the anchor escapement, in particular of a clock, and a method for producing the balance wheel of this device |
CH705276B1 (en) * | 2007-12-28 | 2013-01-31 | Chopard Technologies Sa | Body workout and transmission to a lever escapement, and exhaust tray being equipped and timepiece comprising them. |
EP2605081A1 (en) * | 2011-12-16 | 2013-06-19 | ETA SA Manufacture Horlogère Suisse | Overmoulded timepiece barrel |
EP2653938A1 (en) * | 2012-04-19 | 2013-10-23 | ETA SA Manufacture Horlogère Suisse | Horological balance |
EP2924517B1 (en) * | 2014-03-24 | 2016-11-09 | Nivarox-FAR S.A. | One-piece composite pin - safety roller |
JP6748318B1 (en) * | 2020-01-29 | 2020-08-26 | セイコーウオッチ株式会社 | Escapement governor, watch movement and watch |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1359005A (en) * | 1920-07-26 | 1920-11-16 | Verner Clarence | Triple roller for watches |
DE1067373B (en) * | 1955-05-31 | 1959-10-15 | Gebrüder Junghans Ag | TABLE CLOCK |
FR1316624A (en) * | 1961-12-20 | 1963-02-01 | Anciens Etablissements Duverdr | Improvements to straddle systems for watch movements |
CH988463A4 (en) * | 1963-08-09 | 1965-11-15 | ||
CH430591A (en) * | 1965-01-04 | 1966-10-31 | Tissot Horlogerie | Balance for clockwork movement |
US3335562A (en) * | 1965-03-03 | 1967-08-15 | Tissot Horlogerie | Anchor escapement for timepieces |
CH439121A (en) * | 1965-04-21 | 1967-12-15 | Virola Sa | Device for fixing a watch spring to the balance axis |
DE1523801C3 (en) * | 1966-11-03 | 1974-03-14 | Greiner Electronic Gmbh, 7530 Pforzheim | Process for the automatable attachment of the inner hook of a spiral spring to the balance and device for carrying out the process |
CH484463A (en) * | 1967-10-10 | 1969-09-15 | Far Fab Assortiments Reunies | Balance axis for Roskopf watch |
US3678683A (en) * | 1971-02-26 | 1972-07-25 | Gen Time Corp | One-piece roller-impulse member for timepiece escapement |
-
1972
- 1972-06-05 US US00259863A patent/US3791251A/en not_active Expired - Lifetime
-
1973
- 1973-06-04 JP JP6207773A patent/JPS537819B2/ja not_active Expired
- 1973-06-04 CA CA173,112A patent/CA977164A/en not_active Expired
- 1973-06-04 DE DE2328319A patent/DE2328319A1/en active Pending
- 1973-06-05 FR FR7320389A patent/FR2188209B1/fr not_active Expired
- 1973-06-05 GB GB2677973A patent/GB1436578A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3791251A (en) | 1974-02-12 |
JPS537819B2 (en) | 1978-03-22 |
FR2188209A1 (en) | 1974-01-18 |
JPS4963472A (en) | 1974-06-19 |
FR2188209B1 (en) | 1977-05-06 |
DE2328319A1 (en) | 1973-12-20 |
CA977164A (en) | 1975-11-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |