APPARATUS FOR CONTINUOUSLY MANUFACTURING ENDLESS HOLLOW CYLINDER OR HOLLOW BODIES WITH OTHER CONVEX CROSS-SECTION Russian patent published in 1997 - IPC

FIELD: chemical engineering and production of pipes. SUBSTANCE: production of pipes and other hollow parts with large and small cross-sections from reinforced plastics and other materials is provided. Means for reciprocation of shape-making body 2a constitutes a feeding trigger mechanism 13 with drive and coupled moveable load 4 installed on arm shaft 2 by means of spline to transmit rotational moment and to move along the shaft. Body 2a may be made in the form of one rod or a packet of individual members able to move along the shaft. In the latter case, means for reciprocation of shape-making body 2a contains additional feeding trigger mechanisms 13 in accordance with the number of individual members composing shape-making body. So complete cycle of displacement of body 2 mainly includes its displacement forwards in direction of coming off finished product 27, whereas its back- direction displacement time is considerably less. EFFECT: enhanced efficiency of process. 10 dwg