Rigging system for casting railcar coupler parts

摘要

A rigging system for casting railcar coupler knuckles is provided. The rigging system comprises cope and drag portions of a mold, a down sprue defined in said cope portion, at least one riser defined in said mold, at least two ingates defined at least partially in said mold and connected to said at least one riser, at least two knuckle mold cavities defined in said mold, and wherein said ingates have a non-circular shape.