Metal founding – Means to shape metallic material – Including ladle or crucible type melt receptacle
Patent
1976-06-23
1977-12-13
Baldwin, Robert D.
Metal founding
Means to shape metallic material
Including ladle or crucible type melt receptacle
249105, 249108, 249204, B22D 712, B22D 3504
Patent
active
040623980
ABSTRACT:
An auxiliary device for use with a permanent mold in casting operations includes a cover plate having an upwardly and a downwardly facing surface. In place on the permanent mold, the downwardly facing surface defines the upper limit of the mold cavity. At least one pipe extends through an opening in the cover plate with its lower end in the plane of the downwardly facing surface of the cover plate. An annular recess located in one of the downwardly facing surface of the cover plate or the lower end of the pipe, encircles the lower end of the pipe radially outwardly from its opening. A breaking core can be incorporated as a part of the lower end of the pipe or it can be formed as a separate member. The pipe can be used only to feed additional molten metal into the mold as the poured metal starts to solidify or it can be used both to pour the molten metal into the mold cavity and then to provide the additional feed as the metal solidifies.
REFERENCES:
patent: 2482352 (1949-09-01), Litton
patent: 3409267 (1968-11-01), Wszolek
Fischer Erwin
Henych Ivo
Reist Jurg
Baldwin Robert D.
Georg Fischer Aktiengesellschaft
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