Sextant with adjustable handle

Details Sextant with adjustable handle Sextant with adjustable handle

1989-01-23

1990-11-27

Yasich, Daniel M.

Geometrical instruments

Straight-line light ray type

Vertical angle

33290, 356144, G01C 108

Patent

active

049725920

ABSTRACT:
An optical measuring instrument permits the user to adapt the handle position optimally to his individual wishes and habits while holding the instrument. An adapter is fixed to the limbus body. The adapter includes curved slots for accepting fixing screws that lie within bores of the head part of the handle. By loosening the screws, one may adjust the position of the handle through a preselected angular range, tightening the screws to fix a preferred handle position.

REFERENCES:
patent: 1308971 (1919-07-01), Widen
patent: 1401380 (1921-12-01), Vaughn
patent: 2378770 (1945-06-01), Horr
patent: 2403919 (1946-07-01), Hagner
patent: 2531248 (1950-11-01), Belch
patent: 3408741 (1968-11-01), Bane
patent: 3828443 (1974-08-01), James
patent: 4245393 (1981-01-01), Zane et al.
patent: 4428671 (1984-01-01), Davies

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