Signals and indicators – Horns – whistles and compressional wave generators – Manually actuated air compressor
Patent
1975-07-29
1976-05-25
Weldon, Ulysses
Signals and indicators
Horns, whistles and compressional wave generators
Manually actuated air compressor
235 83, 35 24A, G09F 900
Patent
active
039585298
ABSTRACT:
A circular clock face bearing time indicia equally spaced in a concentric relationship thereon providing a base to support and correlate time quantity indicators. A plurality of arcuate segmented indicators marginally disposed along the perimeter of the face are manually positionable to visually display certain combinations of time indicia corresponding to mandatory work hours, and a plurality of sector indicators slidably supported on the inner portion of the face are manually positionable to visually indicate certain combinations of time indicia corresponding to employee work time. The sector indicators and segmented indicators are cooperatively organized for visually indicating proper correlations of time combinations.
REFERENCES:
patent: 717241 (1902-12-01), Mercer
patent: 2961157 (1960-11-01), Sunico
patent: 3883970 (1975-05-01), Campbell
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