Method of positioning a boring mechanism in a stern tube

Details Method of positioning a boring mechanism in a stern tube Method of positioning a boring mechanism in a stern tube

1977-05-09

1979-10-30

Corbin, John K.

Optics: measuring and testing

By alignment in lateral direction

With light detector

356153, G01B 1126

Patent

active

041726650

ABSTRACT:
A method and system of positioning a boring mechanism in a stern tube, wherein a hollow boring bar having a plurality of laser detecting devices in the hollow portion thereof and an adjusting mechanism corresponding to each of the detectors on the outside of the bar supported within the tube, and a laser beam is directed down the center line of the bar. The detector and auxiliary circuits detect when the laser beam is off center and signals a control means to adjust the corresponding adjusting mechanism and thus the position of the boring bar until the laser beam is again centered.

REFERENCES:
patent: 3551057 (1970-12-01), Hamilton et al.
patent: 3603691 (1971-09-01), Hamilton
patent: 3813171 (1974-05-01), Teach et al.
patent: 3902810 (1975-09-01), Hamar
patent: 3907435 (1975-09-01), Roodvoets

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