Metal founding – Means to shape metallic material
Patent
1975-11-05
1977-04-26
Baldwin, Robert D.
Metal founding
Means to shape metallic material
164269, 164344, B22D 1722
Patent
active
040195643
ABSTRACT:
A casting support for use in automatic cast trim machines having improved casting retention characteristics and being suitable for use in machines having a simple rail for the return of spiders to the melting pot. This support is characterized by a projection supporting an enlarged end about which the casting is formed, with suitable regions adjacent the projection to provide positive locking of the extensions of the casting around the projection to prevent separation of the casting in that area and the resulting loosening thereof upon the rotation of the index mechanism in the cast trim machine. Shrinking of the casting during cooling in combination with the locking of the casting provides positive orientation of the casting on the support, yet ready removal thereof by a simple punch.
REFERENCES:
patent: 2217661 (1940-10-01), Anderson
patent: 2279344 (1942-04-01), Reid
patent: 2409142 (1946-10-01), McCoy
patent: 3547181 (1970-12-01), Lewis
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