Mechanical device for astronomical calculation

Details Mechanical device for astronomical calculation Mechanical device for astronomical calculation

1975-11-11

1976-09-21

Martin, Jr., William D.

Geometrical instruments

Miscellaneous

Light direction

35 47, G01C 2124

Patent

active

039810801

ABSTRACT:
A mechanical device adapted for determining the position of an observer by star-sight observations comprising a hollow portable sphere, having a number of sets of pairs of holes, the two holes in each set lying at diametrical extremities by which the sphere can be releasably engaged in a rigid ring, such that the sphere is rotatably mounted in the ring for rotation about an axis passing through the diametrically-opposed holes. A slidable carriage is mounted on the ring for travel in the plane thereof and markings are formed on the ring for determining the position of the carriage thereon. The position of an observer is determined from three simultaneous observations of suitably selected stars by means of the corresponding true circles of altitudes which are inscribed on the surface of the sphere for observation. star of obsevation.

REFERENCES:
patent: 533340 (1895-01-01), Beehler
patent: 2349515 (1944-05-01), Oberst
patent: 2408651 (1946-10-01), Kiehl
patent: 2443240 (1948-06-01), Hagner
patent: 2694859 (1954-11-01), Gwillam

Affiliated with

Also associated with

Rating

Mechanical device for astronomical calculation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Mechanical device for astronomical calculation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Mechanical device for astronomical calculation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1405336