Shoe sole molding machines

Claim 1

Apparatus for molding shoe bottoms of foamed material including a mold assembly having a cavity in which a shoe bottom is to be formed, said cavity being generally disposed along a plane inclined from 15* to 25* to a horizontal plane with the toe forming end of the cavity at the lower end and the heel forming end of the cavity with any associated ledges at the upper end of said plane, an inlet on said assembly leading into the lower end of said cavity, a rotatable table, a plurality of mold assemblies mounted on said table, means for locating the table for successively aligning the mold inlet of each mold assembly with an injection outlet, means mounting each assembly on the table for movement radially outward for engaging said inlet with the injection outlet, and means for injecting a desired amount of said material in foamable condition through said inlet into the lower end of said cavity whereby said material foams and expands toward the heel end of said cavity and air in the cavity and excess gases generated during foaming of the material flow heightwise along the inclined cavity and escape from the upper end of the cavity.