World timepiece
US7307916B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 8, 2003 |
| Grant date | Dec 11, 2007 |
| Priority date | — |
| Expiry date | Jun 22, 2024 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B19/286
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A mechanical world timepiece having a transmission mechanism which allows the time display, such as, for example, a 12-hour hand and/or a 24-hour hand, to be directly adjusted with a turning ring having 24 time zones. The timepiece serves for the easily manageable adjustment of the time zone and the reading of the time in a different time zone. Operation could not be simpler. After a lever has been opened, the mechanism in FIG. 1 automatically engages. The gear rim (6), which is fixed with the turning ring, drives a vertical drive wheel (5), which is connected by a shaft to a clutch wheel (4). Once the pinion (4) is engaged, it drives one or two minute wheels (8, 9), which move a 12-hour wheel (10) and a 24-hour wheel (11) in a 1 h-cycle. The turning ring is thus easily turned to the desired destination at 12 h and the local time can immediately be read. Either the turning ring is now turned back to its original locality or the lever is simply closed. In the latter case, the time now continues running according to the set destination. The push-piece (2) disengages the mechanism via a rocker (3), simultaneously fixes, in the closed state, the gear rim (6) and prevents accidental adj…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.