Geometrical instruments – Straight-line light ray type – Process
Patent
1974-05-21
1977-01-18
Martin, Jr., William D.
Geometrical instruments
Straight-line light ray type
Process
33182, 33286, G01B 1127
Patent
active
040031330
ABSTRACT:
A method for optically aigning a machine part which should have its center line perpendicular to the vertical plane of a reference. The deviation in the horizontal and in the vertical plane between the actual position and the desired position of the part is numerically determined through the use of a theodolite. For determining the deviation in the horizontal plane two reference marks are provided entirely outside the machine at a distance as far as possible from each other. The distance between the two reference marks determines both a base line running parallel to the longitudinal center line of the machine and the position of the vertical plane of reference.
REFERENCES:
patent: 2570275 (1951-10-01), Reading
patent: 3482317 (1969-12-01), Truax
patent: 3604121 (1971-09-01), Hull
patent: 3704522 (1972-12-01), Blubaugh et al.
patent: 3752588 (1973-08-01), Chapman
patent: 3782158 (1974-01-01), MacPherson
Martin, Jr. William D.
Papierfabrieken Van Gelder Zonen N.V.
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