Compass with adjusting means

Details Compass with adjusting means Compass with adjusting means

1997-08-29

1999-12-21

Roskoski, Bernard

Geometrical instruments

Scriber

Curved line

33558012, B43L 902

Patent

active

060032316

ABSTRACT:
A compass with an adjusting mechanism for adjusting the compass legs and for changing the distance between the compass points, wherein each compass leg includes a pivot bearing and an adjustment bearing. Each compass leg is constructed as a two-armed lever, wherein a first lever arm of each lever extends along the compass leg axis from the pivot bearing to the compass leg point, on the one hand, and a second lever arm extends from the pivot bearing to the compass arm end. The adjustment bearing, or a tilting bearing constructed as the adjustment bearing, is arranged in the second lever arm of each two-armed lever forming a compass leg.

REFERENCES:
patent: 19589 (1858-03-01), Schaefer
patent: 953026 (1910-03-01), Evans
patent: 1140844 (1915-05-01), Novak
patent: 1284372 (1918-11-01), Lawrenz
patent: 1466712 (1923-09-01), Green et al.
patent: 1925082 (1933-09-01), Dodd
patent: 2333307 (1943-11-01), Galea
patent: 3358371 (1967-12-01), Liesong, Sr.
patent: 4843719 (1989-07-01), Straten

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