Patent
1976-12-20
1978-07-25
Grieb, William H.
G09B 1912
Patent
active
041020600
ABSTRACT:
A first shaft is rotatably supported centrally of a clock face having horological divisions placed in sequential arcuate relation thereon. A second shaft concentric with said first shaft is rotatably supported independently of said first shaft and has attached thereto a minute hand. A first disc is in rotatably driven relation to the first shaft and is positioned nextly adjacent the back side of the clock face. The first disc carries a first set of digital numerals corresponding to the hourly horological division. The clock face has a window formed thereon and the digital numerals are registrable with the window and viewable therethrough. A second disc having a diameter an increment larger than the diameter of the first disc is rotatably driven by the second shaft and carries a second set of digital numbers corresponding to the horological minute division. The second set of numbers is registrable with the clock face window and viewable therethrough.
REFERENCES:
patent: 1143519 (1915-06-01), Edmiston
patent: 2132051 (1938-10-01), Schuttenberg
patent: 2631386 (1953-03-01), Zalkind
patent: 2655739 (1953-10-01), Wilmington
patent: 2919538 (1960-01-01), Eichholz
patent: 3203115 (1965-08-01), Friday
patent: 3364599 (1968-01-01), Polsky
patent: 3508350 (1970-04-01), Genin
patent: 3670428 (1972-06-01), Hall
patent: 3690021 (1972-09-01), Glass et al.
Grieb William H.
Jeffers Albert L.
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