Counter wheel assembly with improved drive clutch mechanism

Details Counter wheel assembly with improved drive clutch mechanism Counter wheel assembly with improved drive clutch mechanism

1982-07-02

1984-09-25

Fuller, Benjamin R.

Registers

Zero-setting devices

Separate shaft

235144PN, 235144SM, 235131FD, 192 71, G06C 1542

Patent

active

044737424

ABSTRACT:
An improved counter wheel assembly comprising an indicia wheel, a reset gear, a reset control mechanism for resetting the indicia wheel to a zero position, a drive gear, and a drive clutch for selectively engaging the indicia wheel to the drive gear. In one form, the drive clutch comprises an elongated pawl engageable with a frusto-conical surface integral with the drive gear and adjacent to and immediately inwardly of the rim of the indicia wheel. In a second embodiment, the drive clutch means comprises a pair of substantially identical V-shaped pawls that pivot in tandem to selectively engage serrations of a substantially cylindrical engagement surface.

REFERENCES:
patent: 2035891 (1936-03-01), Jeffrey
patent: 2735526 (1956-02-01), Gemmel
patent: 2905294 (1959-09-01), Kellogg
patent: 2996241 (1961-08-01), Hoffmann
patent: 3223316 (1965-12-01), Coulter et al.
patent: 4142672 (1979-03-01), Smilgys

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