Value setting mechanism, particularly for franking machines
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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May 25, 1982
Grant Date -
N/A
app pub date -
Feb 4, 1980
filing date -
Feb 5, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A value setting mechanism constituting an interface between printing mechanism and an electronic accounting system in a franking machine has each value precisely set without possibility of alteration during a printing cycle. A four digit value can be set by rotating thumb wheels that transmit the value to encoding switches and printing elements. A spring loaded locking bar lies between aligned recesses on the wheels when properly set. To initiate a cycle a trip lever is electromagnetically moved from a first position to a second position releasing a clutch pawl to actuate the printing elements via a clutch and to close switches. If bar fails to enter aligned recesses, a detent unit prevents the trip lever from moving to the second position. When it does so move, an arm thereon inhibits detent unit from moving in a direction to allow bar to withdraw from the aligned recesses.
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