Abstract: A press having a pre-stressed frame, to reduce the energy required in each pressing cycle, and in which oppositely acting wedges provide the clamping force. The mold or other structure to be pressed is assembled outside the press and then is slid on guide rails into the press with very small clearances. The press can also be used for molds or dies fixed to stationary or movable platens.

Abstract: An injection nozzle for an injection moulding machine is described. The nozzle includes a body having a filter chamber and a filter element removably received in the chamber in the filter body. The outer surface of the filter element is defined by a plurality of slots which extend generally longitudinally of the element in circumferentially spaced positions, and a corresponding plurality of intervening lands. Each slot has a blind inner end and an outer end which opens into an end of the filter element, the slots being arranged so that alternate slots communicate by way of their outer ends with the filter chamber inlet opening and define with the inner surface of the filter chamber, inlet flow channels for liquid to be filtered, while the intervening slots communicate with the filter chamber outlet opening and similarly define outlet flow channels for said liquid.