Foundry pattern assembly

Claim 2

The pattern assembly for preparing a composite core having a larger main core with a smaller previously formed auxiliary core section imbedded therein, said auxiliary core section having a casting space therein, said pattern assembly comprising a plurality of pattern members relatively movable between nonoperable positions remote from each other and operable positions adjacent each other wherein said pattern members define a mold cavity, at least one of said pattern members having means for keeping said smaller auxiliary core section in position within said cavity during the formation of said larger main core thereabout and cover means mounted on said section members for covering said casting space during the formation of the larger core section around the smaller core section.

Claim 3

The pattern assembly for preparing a composite core having a larger main core with a smaller previously formed auxiliary core section imbedded therein said auxiliary core section having a casting space therein, said pattern assembly comprising a plurality of pattern members relatively movable between non-operable positions remote from each other and operable positions adjacent each other wherein said pattern members define a mold cavity, at least one of said pattern members having means for keeping said smaller auxiliary core section in position within said cavity during the formation of said larger main core thereabout, and additional positioning means movably mounted on said pattern members for movement into engagement with said smaller core section to support said smaller core section and cover said casting space therein during the formation of the larger cOre section around the smaller core section.

Claim 4

The pattern assembly for preparing a composite core having a larger main core with a smaller previously formed auxiliary core section imbedded therein said auxiliary core section having a casting space therein, said pattern assembly comprising a plurality of pattern members relatively movable between non-operable positions remote from each other and operable positions adjacent each other wherein said pattern members define a mold cavity, at least one of said pattern members having means for keeping said smaller auxiliary core section in position within said cavity during the formation of said larger main core thereabout, and additional positioning means movably mounted on said pattern members for movement into engagement with said smaller core section to support said smaller core section and cover said casting space therein during the formation of the larger cOre section around the smaller core section.

Claim 5

The pattern assembly for preparing a composite core having a larger main core with a smaller previously formed auxiliary core section imbedded therein, said pattern assembly comprising a plurality of pattern members relatively movable between non-operable positions remote from each other and operable positions adjacent each other wherein said pattern members define a mold cavity, at least one of said pattern members having means for keeping said smaller auxiliary core section in position within said cavity during the formation of said larger main core thereabout wherein said positioning means comprises pin means secured on one of said pattern members defining the bottom of said cavity, said pin means cooperating with corresponding recesses in said smaller core section for locating said smaller core section.

Claim 6

The pattern assembly for preparing a composite core having a larger main core with a smaller previously formed auxiliary core section imbedded therein, said pattern assembly comprising a plurality of pattern members relatively movable between non-operable positions remote from each other and operable positions adjacent each other wherein said pattern members define a mold cavity, at least one of said pattern members having means for keeping said smaller auxiliary core section in position within said cavity during the formation of said larger main core thereabout wherein said positioning means comprises pin means secured on one of said pattern members defining the bottom of said cavity, said pin means cooperating with corresponding recesses in said smaller core section for locating said smaller core section.

Claim 7

The pattern assembly for preparing a composite core having a larger main core with a smaller previously formed auxiliary core section imbedded therein, said pattern assembly comprising a plurality of pattern members relatively movable between non-operable positions remote from each other and operable positions adjacent each other wherein said pattern members define a mold cavity, at least one of said pattern members having means for keeping said smaller auxiliary core section in position within said cavity during the formation of said larger main core thereabout, and additional positioning means movably mounted on said pattern members for movement into engagement with said smaller core section to support said smaller core section during the formation of the larger core section around the smaller core section.

Claim 8

The pattern assembly for preparing a composite core having a larger main core with a smaller previously formed auxiliary core section imbedded therein, said pattern assembly comprising a plurality of pattern members relatively movable between non-operable positions remote from each other and operable positions adjacent each other wherein said pattern members define a mold cavity, at least one of said pattern members having means for keeping said smaller auxiliary core section in position within said cavity during the formation of said larger main core thereabout, and additional positioning means movably mounted on said pattern members for movement into engagement with said smaller core section to support said smaller core section during the formation of the larger core section around the smaller core section.