Precessing bottom pour stopper having swinging movement

Details Precessing bottom pour stopper having swinging movement Precessing bottom pour stopper having swinging movement

1975-06-27

1976-04-27

Reeves, Robert B.

Dispensing

With cleaning means

137331, 222508, B22D 4110

Patent

active

039529223

ABSTRACT:
In accordance with a preferred embodiment of this invention, a precessing bottom pour stopper is used to accurately and precisely control the flow of molten metal through the tap hole which is located in the bottom of a metallurgical vessel. The precessional movement of the stopper, as it moves into and/or out of sealing engagement with the tap hole, removes any debris which may be lodged between the sealing surfaces and thereby ensures a tight seal over a prolonged period of operation.

REFERENCES:
patent: 3643680 (1972-02-01), Hall et al.

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