B - Operations – Transporting – 23 – K
Patent
B - Operations, Transporting
23
K
78/50
B23K 9/32 (2006.01) B23K 9/035 (2006.01)
Patent
CA 1163839
ABSTRACT A device for the back support of the first run weld in the automatic butt-welding of two pipes held together by the two circumferential facing sets of radial pistons of an internal connector. The connector includes a set of independent copper pads of trapezoidal shape disposed in the form of a ring and fixed, with their bases alternately inverted, on a corresponding underlying set of pad support elements idly supported by respective horizontal pins rigid with support blocks which are resiliently supported by one of said circumferential sets or radial pistons of said internal connector by means of radial thrust springs. The pads are kept resiliently and constantly pressed against each other in the manner of a ring along their inclined sides by respective hori- zontal thrust springs supported by said horizontal pins and acting alternately on opposite faces of said pad sup- port elements. The trapezoidal copper pads are fixed to the respective pad support elements by screws which are inserted into the width of their bases.
368558
Robic Robic & Associes/associates
Saipem S.p.a.
LandOfFree
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