ES235717A3 - A mechanical device for precompriming hardened cement or concrete tubes (Machine-translation by Google Translate, not legally binding)
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A mechanical device for precompriming hardened cement or concrete tubes (Machine-translation by Google Translate, not legally binding)
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Mechanical device for pre-compressing hardened cement or concrete pipes that is essentially characterized by the fact of being constituted by a rotating element in which a wire is wound which repeatedly passes twisted in two or more steps by an organism restraining its march caused by the rotating movement of the tube to be compressed to which, duly fixed at one end, the propeller wire is wound for this purpose, whose passage is regulated by a carriage movable along guides parallel to the axis of the tube, and whose tension is maintained by the action of a weight that gravitates on the wire itself. (Machine-translation by Google Translate, not legally binding)
ES0235717A1957-05-181957-05-18A mechanical device for precompriming hardened cement or concrete tubes (Machine-translation by Google Translate, not legally binding)
ExpiredES235717A3
(en)
A procedure for the manufacture of rods, torcidas in cool, to be used as reinforcement of armed concrete (Machine-translation by Google Translate, not legally binding)