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US 3,979,901 AGranted
Construction of the gear train for a timepiece
AssigneeKabushiki Kaisha Daini Seikosha
InventorYasuichi Nakagawa
Life of this patent
Estimating the term…
Abstract
A construction of the gear train for a timepiece comprises a minute wheel, a third wheel and a fifth wheel, at least one of said wheels being coaxially and freely mounted on a common axle with the other of said wheels whereby the whole of said gear train is compactly constructed.
Claims3
A construction of a gear train for a timepiece, comprising, in combination:
- a base plate and a gear train bearing plate disposed in spaced relationship;
- a rotor axle, common axle, and second hand axle rotatably mounted between said base plate and said gear train bearing plate;
- a rotor pinion and a magnet rotor mounted on said rotor axle;
- a fourth wheel mounted on said second hand axle;
- a minute wheel fixedly mounted on said common axle;
- and third and fourth wheels freely mounted on said common axle.
3 more elements
A construction of a gear train for a timepiece, comprising, in combination:
- a base plate and a gear train bearing plate disposed in spaced relationship;
- a rotor axle, common axle and second hand axle rotatably mounted between said base plate and said gear train bearing plate;
- a rotor pinion and a magnet rotor mounted on said rotor axle;
- a fourth wheel mounted on said second hand axle;
- a third wheel fixedly mounted on said common axle;
- and fifth and minute wheels freely mounted on said common axle.
3 more elements
A construction of a gear train for a timepiece, comprising, in combination:
- a base plate and a gear train bearing plate disposed in spaced relationship;
- a rotor axle, common axle and second hand axle rotatably mounted between said base plate and said gear train bearing plate;
- a rotor pinion and a magnet rotor mounted on said rotor axle;
- a fourth wheel mounted on said second hand axle;
- a fifth wheel fixedly mounted on said common axle;
- and third and minute wheels freely mounted on said common axle.
3 more elements
Dependencies are inferred from the claim text.