Measuring and testing – Miscellaneous
Patent
1977-09-07
1978-12-26
Queisser, Richard C.
Measuring and testing
Miscellaneous
73623, 73637, 176 19R, 324220, G01N 2904
Patent
active
041310187
ABSTRACT:
Manipulator assembly for testing the material of a pipe elbow from the inside thereof, the pipe elbow being secured to a pipe union extending from a pressure vessel openable for receiving therein a vertically extending manipulator mast having an arm carrying a manipulator, the manipulator being movable by the arm in vertical direction, rotatably about the axis of the mast and in direction of the longitudinal axis of the arm and transversely thereto, the manipulator includes a multimember vehicle drivable in direction of the pipe-union and pipe-elbow axis, the members of the vehicle being articulatingly connected to one another and having extensible and retractable support legs for supporting the respective vehicular members centered relative to the inner periphery of the pipe elbow, the support legs having roller members at the end thereof for transporting the vehicular members in axial direction of the pipe union and the pipe elbow, the vehicular member located at the head of the multimember vehicle being a test system carrier and being drivable with the vehicle in axial direction of the pipe union and the pipe elbow, the test system carrier having a test system fastened to at least one test arm and mounted so as to be rotatable along predetermined test tracks in circumferential direction of the pipe elbow, drivable radially inwardly and outwardly with the test arm and centerable on the respective center of the pipe elbow, the vehicular members and the test system carrier being mutually engaged by articulating couplings and longitudinally adjustable drive members so that, in an extended readiness position thereof wherein the manipulator is disposed in front of the pipe union, the vehicular members and the test system carrier are oriented in axial direction of the pipe union, are centered on the pipe union center and are rigidly coupled to one another, whereas in a travelling position thereof wherein at least the test system of the manipulator is located within the pipe elbow, the vehicular members and the test system carrier are loosely coupled to one another so that they adapt themselves to the curvature of the pipe elbow as they travel in axial direction thereof.
REFERENCES:
patent: 3786684 (1974-01-01), Wiers et al.
patent: 3911750 (1975-10-01), Prasher
patent: 3929007 (1975-12-01), Dent et al.
Gugel Georg
Kastl Hans
Muller Otto
Beauchamp John P.
Kraftwerk Union Aktiengesellschaft
Lerner Herbert L.
Queisser Richard C.
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