Running reserve indicator for a mechanical clockwork
AssigneeEterna SA
InventorsPaul Gerber, Willy Meier
Life of this patent
Estimating the term…
Abstract
A running reserve indicator is provided for a mechanical clockwork provided with a main barrel for driving a gear-train and at least a second barrel for driving a gear-train allocated to an auxiliary function which is performed during a determined period. With the indicator, the running reserve displayed with the aid of a hand and a dial is always equal to the running reserve of the barrel having the smallest reserve.
Claims16
A running reserve indicator mechanism of a mechanical timepiece movement provided with a main barrel for driving a finishing gear-train and at least a second barrel for driving a gear-train assigned to an auxiliary function that must be performed during a determined period, the mechanism comprising:
- a running reserve indicator comprising a hand and a dial used for reading the position of the hand,
- first and second gear-trains connecting, respectively, the main barrel and the second barrel to the running reserve indicator,
- the running reserve indicator and the first and second gear-trains being arranged so that the indicated running reserve corresponds to the time remaining to perform the auxiliary function.
Dependencies are inferred from the claim text.