Centrifugal casting machine having vacuum assist
OwnerLarry James Hilmoeinventor
Life of this patent
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Abstract
A centrifugal casting machine includes a rotatable shaft having a mounting plate for receiving a pair of molds containing the casting cavities. A passage in the shaft has one end connected to a source of vacuum and the other end opening in the plate. A conduit is provided from the casting cavities to the exterior of the molds. Connection means are provided for applying the vacuum in the passage to the cavity through the conduit. The vacuum so applied improves both the operation of the casting machine and the quality of the castings.
Claims4
In centrifugal casting apparatus having a rotating shaft with a plate thereon for receiving a mold means for coaxial rotation with the shaft, said mold means and plate being generally coextensive in dimension and having peripheral surfaces spaced from the axis of the shaft, the mold means having a cavity positioned for rotation in a plane generally normal to the axis of said shaft, the improvement comprising:
- a conduit means extending from the cavity to the peripheral surface of the mold means and opening thereon.
- a passage in said shaft and plate having one end connected to a source of vacuum and the other end opening on the peripheral surface of the plate;
- and
- a chamber about the plate and mold means extending along the entire peripheral surfaces thereof for forming a connection means between said conduit means and vacuum passage for applying the vacuum to said cavity.
Dependencies are inferred from the claim text.