Patent · US Expired

Setting device for presettable counters

US4172220A · kind A · utility

1Cited by

5References

12Claims

0Family size

Assignee

Kienzle Apparate GmbH · DE

Inventors

Helmuth Muller · St. Georgen, DE
Lothar Herrmann · Schwäbisch Hall, DE

Key dates

Filing date	Oct 6, 1977
Grant date	Oct 23, 1979
Priority date	—
Expiry date	Oct 6, 1997

Classification

Technology area (CPC G)Physics
CPC primaryG06M1/283
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

In a setting device for presettable counters, a number of indicating rollers are arranged with symbols on their circumferential peripheral surfaces. Connected to each indicating roller is a ratchet wheel and an adjusting wheel. A switching device for each roller permits it to be moved in a step-by-step manner and otherwise to be locked in position. The switching device includes a switching pawl for engaging the ratchet wheel and moving the roller, a fixing lever for locking the adjusting wheel and roller in position, a control pawl and a key for displacing the control pawl. The control pawl is spring-biased against the actuating movement of the key. The control pawl displaces the switching pawl and the fixing lever in response to its displacement by the key.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.