WHEEL WITH REDUCED MECHANICAL FRICTION FOR TIMEPIECES
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United States of America Patent
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app pub date -
Nov 18, 2016
filing date -
Dec 18, 2015
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Abstract
A sequencer mechanism including a rotatably driven locking wheel set including a peripheral holding surface of regular geometry or respectively of regular uniform magnetic polarity, arranged to hold immobile in rotation an opposite receiver wheel set, which is a reduced friction wheel including at the periphery thereof second stop elements, which are idle rollers or respectively magnets of the same polarity, cooperating in pairs with this holding surface on either side of a plane passing through the centres of the two wheel sets, the locking wheel set including a drive surface including an irregular relief portion or respectively an opposite magnetization and arranged to drive this receiver wheel set in jerks. A timepiece mechanism including such sequencer mechanism. A watch including such a timepiece mechanism and/or such a sequencer mechanism.
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