(under the class definition) Molding apparatus wherein means is provided to adjust the volume of the apparatus during the molding operation to compensate for the expansion or contraction of either the product or the molding apparatus.
SEE OR SEARCH THIS CLASS, SUBCLASS:
106, for molding apparatus having a reservoir proving a compensating means for the contraction of the product.
134+, for molding apparatus wherein expansion or contraction is compensated for by the material from which the mold is constructed.
SEE OR SEARCH CLASS
202, Distillation: Apparatus,
268, for an element having an expansion provision.
