Mold box for forming sand pouring basins
OwnerAdolf P. E. Volkmanninventor
Life of this patent
Estimating the term…
Abstract
A mold box has a cavity for receiving molding sand. The cavity is defined by the bottom wall of the box, by an outer peripheral wall, and a central part having a top wall disposed in a lowered plane relative to the top wall of the box. Pouring opening shaping discs and rings are releasably supported on the top wall of the central part wherein different shapes and structures of these shaping discs and rings can be substituted one for another to vary the size and shape of the sand basin pouring opening. The discs and rings also are shaped and sized whereby to provide for riser metal for the mold. A sand saver insert is capable of being employed in mold box structures that incorporate waste areas of molding sand.
Claims11
A device for forming a sand pouring basin having a container portion for receiving molten metal and also having a bottom pouring opening for discharge of the molten metal into a mold, said device comprising:
- a mold box having a cavity for receiving sand to be packed and shaped,
- said cavity being defined by a bottom wall of said mold box, an outer peripheral wall having a top surface, and a central part spaced from said outer peripheral wall and having a wall surface that forms said cavity with said outer wall, the top of said cavity being open for packing sand therein,
- said central part having a top wall disposed in a lowered plane relative to the plane of the top surface of said peripheral wall,
- and pouring opening shaping means supported in projecting relation on the top wall of said central part to form a bottom pouring opening for the pouring basin at said lowered plane,
- said shaping means being releasably supported on said top wall wherein selected shaping means can be substituted one for another to vary the size and shape of the pouring opening.
A device for forming a sand pouring basin having a container portion for receiving molten metal and also having a bottom pouring opening for discharge of the molten metal into a mold, said device comprising:
- a mold box having a cavity for receiving sand to be packed and shaped,
- said cavity being defined by a bottom wall of said mold box, an outer peripheral wall having a top surface, and a central part spaced from said outer peripheral wall and having a wall surface that forms said cavity with said outer wall, the top of said cavity being open for packing sand in the cavity,
- said central part having a top wall disposed in a lowered plane relative to the plane of the top surface of said peripheral wall,
- and interchangeable means on the top wall of said central part that can form a bottom pouring opening for the pouring basin and that can be substituted one for another to vary the size and shape of the pouring opening.
Dependencies are inferred from the claim text.