Adjustment of readout members in a digital clock

Details Adjustment of readout members in a digital clock Adjustment of readout members in a digital clock

1977-03-24

1980-03-11

Weldon, Ulysses

Horology: time measuring systems or devices

Display trains

For drum or plate dial type

235133R, 235139R, 368235, G04B 1902

Patent

active

041921364

ABSTRACT:
A digital readout apparatus includes a housing, a plurality of members providing, respectively, a presentation of units-of-minutes, tens-of-minutes, and hours, a shaft for supporting the members within the housing for movement in rotation imparted either by a timed or manual setting input to the member of lowest order. The digital readout apparatus also includes an endshake element received on the shaft between the hours member and the housing. The endshake element includes cam structure on a side surface which cooperates with cam structure similarly contoured on the housing thereby through selective rotational adjustment of the endshake element relative to the shaft, both the hours and tens-of-minutes members are moved axially along the shaft relative to the units-of-minutes member which is fixed to the shaft for varying clearance between the members. The apparatus also includes means for periodically drivingly connecting pairs of members whereby a member of lower order may drive the member of next higher order.

REFERENCES:
patent: 2114501 (1938-04-01), Oswald
patent: 2459107 (1949-01-01), Johnson
patent: 2623697 (1952-12-01), Ericsson et al.
patent: 3078655 (1963-02-01), Hickly
patent: 3574995 (1971-04-01), Turner
patent: 3898792 (1975-08-01), Insley et al.

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