The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 24, 1978
Filed:
Dec. 20, 1976
Hiroshi Ito, Showamachi, JA;
Rhythm Watch Co. Ltd., Tokyo, JA;
Abstract
An alarm setting device for timepieces consisting of a primary alarm setting wheel which engages an alarm hand wheel, a primary time wheel which is provided on the same shaft as the primary alarm setting wheel and which is driven by a wheel train of the timepiece, a primary cam mechanism which includes projections and engaging slots provided on the primary time wheel and in the primary alarm setting wheel, a secondary alarm setting wheel which engages with the primary alarm setting wheel, a secondary time wheel which is provided on the same shaft as the secondary alarm setting wheel and which is driven at a higher rate than that of the primary time wheel by a wheel train of the timepiece, a secondary cam mechanism which includes projections and engaging slots provided on the secondary time wheel and in the secondary alarm setting wheel and whose dropping and riding-up actions follow those of the primary cam mechanism, and a contact device which contains a movable part which is engaged by the primary and secondary time wheels and activated by the primary and secondary cam mechanisms and in which the on-off condition of the contact device is controlled by the movable part.