Mechanism for establishing clearance between seaming cam lever and housing of can end double-seaming machine
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 22, 1992
Grant Date -
N/A
app pub date -
Jul 23, 1991
filing date -
Jul 25, 1990
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A can end double-seaming machine has a housing in which a shaft is rotatably supported. The shaft with a seaming cam lever mounted is pressed downwardly by a presser against the bias of a spring until the lower surface of the seaming cam lever is held against the upper surface of the housing. Then, an annular spacer is fitted over the lower end portion of the shaft underneath, with the tubular support held against a neck of the shaft. A seaming roll lever is then mounted on the lower end portion of the shaft. The presser is deactivated to release the shaft, which is lifted together with the seaming cam lever, the annular spacer, and the seaming roll lever under the bias of the spring until the marginal portion of the annular spacer abuts against the lower surface of the housing. The tubular support enters the housing by a distance corresponding to a predetermined clearance. The seaming cam lever and the housing are now spaced from each other by the predetermined clearance.
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