Abstract: A horizontal injection molding machine includes two platens, of which one can be a fixed or a moving platen and the other a moving platen, with the platens moving on horizontal columns, and a mold half carrier which is rotatably supported by a turntable and carries mold halves for injection molding tools. A yoke extends between the upper columns for movement along the upper columns. The mold half carrier has on its top side a pivot pin which engages in an opening of the yoke. This arrangement eliminates or at least reduces forces on the columns due to weight and torques.

Abstract: A horizontal injection molding machine includes two platens, of which one can be a fixed or a moving platen and the other a moving platen, with the platens moving on horizontal columns, and a mold half carrier which is rotatably supported by a turntable and carries mold halves for injection molding tools. A yoke extends between the upper columns for movement along the upper columns. The mold half carrier has on its top side a pivot pin which engages in an opening of the yoke. This arrangement eliminates or at least reduces forces on the columns due to weight and torques.

Abstract: There is disclosed a process for the electrodialysis of alkali sulfate-containing aqueous solutions in stages, by conducting these solutions through a plurality of electrodialytic cells operating in series. The electrodialytic cells include acid and base compartments and a cation exchange membrane. The alkali sulfate-containing aqueous solutions exclusively are conducted through acid compartments of the electrodialytic cells. The electrodialytic cells exclusively possess cation exchange membranes in their interiors and are delimited by bipolar ion exchange membranes.

Abstract: A tie-rod assembly used in a press having an inside fixed mold end plate, an outside fixed end plate spaced from the inside plate, a movable mold plate between the end plates, and an actuator for displacing the movable mold plate toward the inside mold end plate for pressing tools carried by the mold plates together in a closing direction and for moving the tools apart in an opposite opening direction includes a tie rod extending along an axis in the direction through the movable plate and having a threaded inside end and an outside end and a stationary threaded element carried on the inside end plate and axially aligned with the tie rod displaced by the actuator independently of the movable plate between a use position and a changeover position with the threaded end withdrawn in the opening direction and spaced from the inside end plate, a nut actuated by a rotary drive for screwing the nut in the changeover position from the tie-rod on the threaded element and inside and outside bracing devices engageable b