Method and apparatus for determining the distance and angular or

Details Method and apparatus for determining the distance and angular or Method and apparatus for determining the distance and angular or

1984-06-18

1985-12-24

Stearns, Richard R.

Geometrical instruments

Gauge

Pipe layout or fitting

33534, 33180R, G01B 500, G01B 514

Patent

active

045597162

ABSTRACT:
A method and apparatus for determining the distance and angular orientation between two structurally unconnected members, such as two sections of a subsea pipeline, is disclosed. The apparatus of the invention comprises generally two guide posts fixedly disposed, respectively, in known spaced relationships to the two structurally unconnected members and a remotely operable template. The remotely operable template comprises generally a variable length frame member; two guide members movably secured, respectively, to the outer ends of the variable length frame member and adapted to mate, respectively, with the guide posts; positioning means associated with each guide member and its respective guide post for properly positioning each guide member on its guide post; and means for measuring the distance between the outer ends of the variable length frame member and the angular orientation of each guide member after the guide members and the guide posts have been properly mated. The method of the invention comprises generally the steps of fixedly disposing two guide posts in known spaced relationships, respectively, to the two structurally unconnected members; measuring the distance and angular orientation between the guide posts with a remotely operable template; and computing the distance and angular orientation between the two structurally unconnected members from such measurement.

REFERENCES:
patent: 2431101 (1947-11-01), Woods
patent: 3667128 (1972-06-01), Morgan
patent: 3854211 (1974-12-01), Oliver et al.
patent: 4120095 (1978-10-01), Lebourg
patent: 4472883 (1984-09-01), Ortega

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