B - Operations – Transporting – 21 – C
Patent
B - Operations, Transporting
21
C
205/28
B21C 1/04 (2006.01) B21C 1/22 (2006.01) B21C 3/08 (2006.01) B21C 37/15 (2006.01)
Patent
CA 1325616
METHOD OF MANUFACTURING PROFILE PIPES USED IN WELL CONSTRUCTION, AND APPARATUS FOR PERFORMING THIS METHOD A B S T R A C T The method resides in profiling a part of a cylindrical pipe by drawing-it through a moulding device, and reducing the pipe over its entire length for the diameter of the cy- lindrical part of the pipe to be substantially equal to the diameter of the circumscribed circle of its profiled part. The apparatus for performing the method comprises a drawing bench supporting a drawing die accommodated in a housing and a drawing carriage. Cams are situated in front of the drawing die at both sides of the path of the travel of a pipe being manufactured, their one ends carrying deform- ing rollers and their other ends carrying forked levers cooperating with the drawing carriage through a tie with slots receiving therein lock pins adapted to engage the forked levers. The apparatus further includes a pivoted lever with a bearing roller, mounted on the housing. One arm of the pivoted lever is adapted to engage the pipe being profiled through the bearing roller; and the other arm thereof carrier pivotally mounted stops adapted for perio- dical cooperation with the cams.
608755
Abdrakhmanov Gabdrashit Sultanovich
Aleshin Vladimir Arkadievich
Bulgakov Rishad Timirgalievich
Duev Veniamin Nikolaevich
Fotov Alexandr Andreevich
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
Tatarsky Gosudarstvenny Nauchno-Issledovatelsky I. Proektny Inst
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