Three hands type clock with belt drive

Details Three hands type clock with belt drive Three hands type clock with belt drive

1991-04-22

1992-04-14

Roskoski, Bernard

Horology: time measuring systems or devices

Displays or display device details

Dial or hand

368 80, 368223, 368276, 368 77, 368220, G04B 1904, G04C 1902

Patent

active

051053985

ABSTRACT:
A three-handed clock has a single movement to rotationally drive the second, minute and hour hands. The rotary output of the movement is transmitted directly to the second hand and is transmitted through a transmission belt to the minute and hour hands. The use of the transmission belt eliminates the need for a gear train to drive the minute and hour hands thereby providing greater design flexibility and ease of assembly and maintenance.

REFERENCES:
patent: 1676030 (1928-07-01), Helin
patent: 3956879 (1976-05-01), Bailey
patent: 4034549 (1977-07-01), Danley et al.
patent: 4103484 (1978-08-01), Bailey
patent: 4128949 (1978-12-01), Marason, Jr. et al.
patent: 4280211 (1981-07-01), Mayenschein

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