Control apparatus for an intermittently rotated indexed wheel

A driven or indexed wheel for a timepiece driven step-by-step by a balance staff of a timepiece. A rockably supported level has a pawl thereon resiliently biased rotationally by a free end of a spring lever to engage peripheral teeth on a lock wheel that is fixed to the wheel driven stepwise. The fo...

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Bibliographische Detailangaben
Hauptverfasser:	KUMAZAWA, SHOICHIRO
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ELECTROMECHANICAL CLOCKS OR WATCHES ENGINEERING ELEMENTS AND UNITS GEARING GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HOROLOGY LIGHTING MECHANICAL ENGINEERING MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL MECHANICALLY-DRIVEN CLOCKS OR WATCHES PHYSICS THERMAL INSULATION IN GENERAL TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS WEAPONS
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Beschreibung
Zusammenfassung:	A driven or indexed wheel for a timepiece driven step-by-step by a balance staff of a timepiece. A rockably supported level has a pawl thereon resiliently biased rotationally by a free end of a spring lever to engage peripheral teeth on a lock wheel that is fixed to the wheel driven stepwise. The force applied by the spring lever can be varied while maintaining precise positioning of the indexed wheel as it steps rotationally.