Device for opening and closing a vessel containing a metal in th

Details Device for opening and closing a vessel containing a metal in th Device for opening and closing a vessel containing a metal in th

1991-11-25

1992-11-10

Kastler, Scott

Metallurgical apparatus

Means sealing or opening aperture in vessel

222597, B22D 4114

Patent

active

051620936

ABSTRACT:
A device for opening and closing a vessel containing a metal in the liquid state. The device comprises a frustoconical sealing stopper extended by a guide rod, and a means for maneuvering the sealing stopper including two arms of different lengths, which are parallel to each other in the position for closing the device, a first, movable connecting element to which the arms are rotatably joined at one end thereof, the first connecting element being fixed to the guide rod, and a second connecting element fixed to the lateral wall of the vessel, to which the arms are rotatably joined at the other end. The arms are arranged such that the shorter of the two arms is the further from the vessel while the apparatus is in the closed position.

REFERENCES:
patent: 1401072 (1921-12-01), Haarmann
patent: 2426644 (1947-09-01), Van Der Pyl
patent: 4298147 (1981-11-01), Honda et al.

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