Sheet metal container making – Apparatus applying closure to receptacle – Seamer
Patent
1987-02-24
1989-02-28
Schmidt, Frederick R.
Sheet metal container making
Apparatus applying closure to receptacle
Seamer
413 27, B21P 5130
Patent
active
048080535
ABSTRACT:
A barrel and a cover, to be combined into a container, are rotated by a preliminary machining feeder while they are supported by a first rotatable seaming chuck and a first holder. During rotation of the preliminary machining feeder, a flange of the barrel and an end hook of the cover are pressed by a first seaming segment against the first seaming chuck, so that the barrel and the cover are preliminarily fastened and necked in. The barrel and the cover are then transferred by a transfer unit to a final machining feeder on which the barrel and the cover are supported by a second rotatable seaming chuck and a second holder. The final machining feeder is rotated to feed the barrel and the cover while they are finally fastened and necked in by a second seaming segment. The first and second seaming segments are arcuate in shape and have their inner shaping surfaces progressively approaching the preliminary and final machining feeders, respectively, in the direction of rotation thereof.
REFERENCES:
patent: 1548743 (1925-08-01), Powell
patent: 1929339 (1933-10-01), Troger et al.
patent: 2727481 (1955-12-01), Laxo
patent: 2975740 (1961-03-01), Smith et al.
patent: 4270475 (1981-06-01), Fletcher et al.
Nagai Katsumi
Shinjyo Akio
Hokkai Can Co. Ltd.
Schmidt Frederick R.
Showalter Robert
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