Mechanism for establishing clearance between seaming cam lever a

Details Mechanism for establishing clearance between seaming cam lever a Mechanism for establishing clearance between seaming cam lever a

1991-07-23

1992-09-22

Kisliuk, Bruce M.

Sheet metal container making

Apparatus applying closure to receptacle

Seamer

53340, B65B 728, B21D 5126

Patent

active

051492393

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.

REFERENCES:
patent: 1370039 (1921-03-01), Newman
patent: 1819249 (1931-08-01), Lange
patent: 3797431 (1974-03-01), Yoshimura
patent: 4961300 (1990-10-01), Mihara

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