Abstract: A machine particularly useful for the blow molding of large thermoplastic articles such as cylindrical drums comprises a plurality of stations through which mold cavities are successively advanced. At a first station, containing a cart-mounted blow assembly an article is blow molded to substantially its final form in a cavity with the blow medium being introduced via a blow pin assembly operatively associated with the cavity after the blow assembly has been operatively engaged with the blow pin assembly. After the blowing operation has been completed, the blow assembly is operatively disengaged from the blow pin assembly and the cavity with the blown article is transported in a second station, the blow pin assembly traveling with the cavity. At the second station, an auxiliary blow assembly is operatively engaged with the blow pin assembly to circulate medium through the interior of the article.

Abstract: A handling element for a container such as a cylindrical drum to permit manipulation of the container by conventional handling equipment. The handling element is secured within a groove or ridge formed in the container and is situated at a position to allow the handling equipment to contact the ring and lift and otherwise manipulate the container. The element includes a lower support surface and an upper lateral surface to operatively cooperate with conventional equipment for manipulation.