GB955383A - "d" jewel timepiece escapement - Google Patents
"d" jewel timepiece escapementInfo
- Publication number
- GB955383A GB955383A GB48307/62A GB4830762A GB955383A GB 955383 A GB955383 A GB 955383A GB 48307/62 A GB48307/62 A GB 48307/62A GB 4830762 A GB4830762 A GB 4830762A GB 955383 A GB955383 A GB 955383A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pallets
- teeth
- draw
- face
- lever
- 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
- 239000010437 gem Substances 0.000 title abstract 2
- 229910001751 gemstone Inorganic materials 0.000 title abstract 2
- 239000000314 lubricant Substances 0.000 abstract 1
- 230000014759 maintenance of location Effects 0.000 abstract 1
- 230000003534 oscillatory effect Effects 0.000 abstract 1
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
- G04B15/00—Escapements
- G04B15/14—Component parts or constructional details, e.g. construction of the lever or the escape wheel
-
- 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
- G04B15/00—Escapements
- G04B15/06—Free escapements
- G04B15/08—Lever escapements
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Gears, Cams (AREA)
- Adornments (AREA)
- Table Equipment (AREA)
- Electromechanical Clocks (AREA)
- Vending Machines For Individual Products (AREA)
Abstract
955,383. Clocks and watches. UNITED STATES TIME CORPORATION. Dec. 21, 1962 [Dec. 26, 1961], No. 48307/62. Heading G3T. In a lever escapement comprising a pivoted escape lever 2 carrying a pair of jewel pallets 26, 27 engaging an escape wheel 1 and controlled in known manner by an oscillatory balance wheel, the escape wheel has the faces of its teeth inclined to provide a draw angle on the teeth, and the pallets are substantially D-shaped, the straight sides of the D forming the impulse face. The corners of the D where the straight face terminates, are rounded at 38, 28 this rounded portion engaging the draw faces of the teeth. A small radius 22 at the bottom of the draw face is rounded into a side 21 of a projection on which the tooth is formed, this small radius forming with the draw face a pocket for the retention of lubricant. The pallets are separated on the lever by a distance greater by from 5 minutes of arc to 2 degrees than the distance determined by the usual formula 360 degrees/number of teeth Î number of teeth spanned by the pallets, and both pallets are given substantially the same drop clearance relative to the escape wheel. Also, the average direction assumed by each pallet in relation to the tooth surface during engagement is made equal. Further, the mean draw angle of the entrance and exit pallets may be made substantially equal as indicated in Fig. 3. Specification 100, 229 is referred to.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US161784A US3146581A (en) | 1961-12-26 | 1961-12-26 | "d" jewel watch escapement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB955383A true GB955383A (en) | 1964-04-15 |
Family
ID=22582714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB48307/62A Expired GB955383A (en) | 1961-12-26 | 1962-12-21 | "d" jewel timepiece escapement |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3146581A (en) |
| CH (1) | CH553438A (en) |
| GB (1) | GB955383A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4903833A (en) * | 1988-10-17 | 1990-02-27 | The Mead Corporation | Cartridge for web-type media material |
| EP1879085B1 (en) * | 2006-07-14 | 2015-09-30 | Manufacture et fabrique de montres et chronomètres Ulysse Nardin Le Locle SA | Escapement |
| CH702930A2 (en) | 2010-04-01 | 2011-10-14 | Patek Philippe Sa Geneve | Exhaust watch to protection against shocks. |
| EP2400352A1 (en) * | 2010-06-22 | 2011-12-28 | The Swatch Group Research and Development Ltd. | Escapement system for a timepiece |
| CH706532B1 (en) * | 2012-11-26 | 2013-11-29 | Detra Sa Zi | Anchor escapement for a timepiece. |
| EP3824352A4 (en) | 2018-07-19 | 2022-03-16 | Janer, Werner | Multi-cam, continuous-drive escapement mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US593849A (en) * | 1897-11-16 | Balance-escapement | ||
| US1327226A (en) * | 1916-07-13 | 1920-01-06 | Long Charles E De | Watch-escapement |
| AT101260B (en) * | 1925-01-23 | 1925-10-10 | Ver Freiburger Uhrenfabriken A | Brocot escapement. |
| GB682436A (en) * | 1949-07-19 | 1952-11-12 | William Mosset | Pin-pallet escapement |
| FR1045163A (en) * | 1950-12-23 | 1953-11-24 | Oris Watch Co | Pegged anchor escapement wheels enhancements |
-
1961
- 1961-12-26 US US161784A patent/US3146581A/en not_active Expired - Lifetime
-
1962
- 1962-11-13 CH CH1327262A patent/CH553438A/de unknown
- 1962-12-21 GB GB48307/62A patent/GB955383A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US3146581A (en) | 1964-09-01 |
| CH553438A (en) | 1974-08-30 |
| DE1523850A1 (en) | 1969-05-14 |
| DE1523850B2 (en) | 1970-11-05 |
| CH1327262A4 (en) | 1964-12-15 |
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