Abstract: A combination injection means, mold handling apparatus, and mold is disclosed which is capable of being attached to a conventional compression style press without undue modification thereof to thereby greatly enhance the efficiency thereof. The invention includes an injection cylinder and bracket means for attaching the same to the frame of the press without modification thereof and a manifold associated with the injection cylinder. A multi-plate mold structure is also disclosed which is capable of being incrementally indexed into and out of the press and also indexed into position for filling by the injection cylinder. Alternate mold assemblies are provided so that one can be located interiorly of the press for curing purposes, while the other is being stripped. A runner system is also provided in the manifold to enhance the efficiency of filling multiple mold cavities with a minimum of waste, and also means are disclosed for separating the press for removal of the cured part.

Abstract: A method and apparatus for forming hollow objects of moldable organic plastic material by providing a parison on a blow core, locating said blow core bearing said parison in a blow mold, expanding said parison within said blow mold, separating said expanded parison from said core while the parison remains in said blow mold and transferring said expanded parison from said blow core within said blow mold to another core and/or blow mold. In a preferred embodiment, a plurality of cores and molds are employed to provide an extended cooling sequence for the final article.

Abstract: Method and apparatus for the preparation of oriented hollow objects of moldable organic plastic material by providing a parison on a first blow core, expanding said parison into an intermediate shape, as by pre-expanding it, transferring said pre-expanded parison to a second blow core, finally extending and expanding said parison to form said hollow object in finished shape.

Abstract: An apparatus for molding articles, particularly those having a body portion formed from a cured material and bonded to a relatively rigid insert portion. Two mold members are arranged for relative movement along a given axis between open and closed positions. Each of the members includes surfaces at least partly directed towards each other to define in said closed position of the members, a molding cavity between the members. One of the mold members has a part for engaging a relatively rigid insert, so as to form a flash barrier on the insert when it is engaged by the mold part. The mold has surfaces for supporting the insert on at least one of its surfaces. The mold assembly includes a third mold member which is movable relative to both of the other two mold members. The moldable material from which the article is to be formed is received on one mold member, and the other member is reciprocable along a given axis and adapted to apply a predetermined closing force to the first and third members.