Watch provided with a tourbillon
AssigneeETA SA Fabriques d'Ebauches
InventorsMaurice Grimm, André Beyner
Life of this patent
Estimating the term…
Abstract
The watch provided with a tourbillon includes a regulating device (2) engaging with an escapement (3) which itself engages with a gear train (4) meshing with a fixed wheel (5). The regulating device, the escapement and the gear train are mounted on a plate (6) fixed to a pipe (7) rotatably mounted in a support plate (8, 46), this pipe being situated at the center of the watch and driven in rotation by a spring driven device (9). Preferably, the pipe (7) surrounds a cannon pinion (11) carrying a minutes hand (12), this cannon wheel in turn surrounding a shaft (13) carrying an hours hand (14). The shaft (13) and the cannon pinion (11) are connected by a motion work (15) which is situated underneath the plate.
Claims17
A watch provided with a tourbillon including a regulating device engaging with an escapement which is operately connected to a pinion meshing with a fixed wheel, said regulating device, said escapement and said pinion being mounted on a plate fixed to a pipe rotatably mounted in a support plate, said regulating device and said escapement being situated above said plate, said pipe being situated at the center of the watch and driven in rotation by a driving device, wherein at least one hand shaft is rotatably mounted within said pipe, and wherein said fixed wheel and said pinion meshing therewith are situated underneath said plate.
A watch provided with a tourbillon including a regulating device engaging with an escapement which is operately connected to a pinion meshing with a fixed wheel, said regulating device, said escapement and said pinion being mounted on a plate fixed to a pipe rotatably mounted in a support plate, said regulating device and said escapement being situated above said plate, said pipe being situated at the center of the watch and driven in rotation by a driving device, wherein said pipe surrounds a cannon-pinion carrying a minutes hand, said cannon-pinion itself surrounding an hours shaft carrying an hours hand, said hours shaft and said cannon-pinion being connected to each other by a motion work situated underneath said plate.
A watch provided with a tourbillon including a regulating device engaging with an escapement which is operately connected to a pinion meshing with a fixed wheel, said regulating device, said escapement and said pinion being mounted on a plate fixed to a pipe rotatably mounted in a support plate, said regulating device and said escapement being situated above said plate, said pipe being situated at the center of the watch and driven in rotation by a driving device, wherein at least one hand shaft is rotatably mounted within said tube, and wherein a gear train is inserted between said escapement and said pinion meshing with said fixed wheel, said gear train including a plurality of wheel and pinion sets engaging one after the other.
Dependencies are inferred from the claim text.