Sliding closure for a receptacle containing molten metal
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United States of America Patent
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Aug 18, 2015
Grant Date -
Jun 2, 2011
app pub date -
Apr 3, 2009
filing date -
Apr 17, 2008
priority date (Note) -
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status (Latency Note)
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Abstract
Sliding closure for a receptacle containing molten metal includes a housing frame that can be fastened to a spout of the receptacle, a first refractory base plate and a sliding unit having a refractory sliding plate that is sealingly pressed against the first base plate by spring elements and a contiguous refractory spout sleeve contained in the housing frame. The case has a second base plate juxtaposed to the first base plate and displaceable inside the housing frame at a right angle to the direction of movement of the sliding unit from an initial position in which the first base plate is in an operating position towards a final position in which the second base plate is in the operating position. It is therefore possible to replace the base plate, which wears outs quickly, by a new base plate in a rapid and convenient manner without interrupting the casting operation.
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