Geometrical instruments – Scriber – Curved line
Patent
1992-10-22
1993-08-17
Cuchlinski, Jr., William A.
Geometrical instruments
Scriber
Curved line
33 2701, B43L 904
Patent
active
052357546
ABSTRACT:
A beam compass including a hollow beam, two implement securing units, and a slot communicating with the interior of the beam and extending along at least a portion of the length of the beam and away from the first implement securing unit. At least one of the implements is releasably secured to the beam at a selected location along the slot by means of a second securing unit which includes an interior portion inside the beam and an exterior portion outside the beam. The interior portion and the exterior portion are connected through the slot and cooperate to releasably secure the implement at a desired location along the slot.
REFERENCES:
patent: 730742 (1903-06-01), Byrne
patent: 957238 (1910-05-01), Murphy
patent: 1296377 (1919-03-01), Finstad
patent: 1352320 (1920-09-01), Souders
patent: 1619392 (1927-03-01), Akashi
patent: 1619750 (1927-03-01), Nelson
patent: 2385723 (1945-09-01), Oehrli
patent: 2489061 (1949-11-01), Thompson
patent: 3293754 (1966-12-01), Lenzini et al.
patent: 3547424 (1970-12-01), Brown
Cuchlinski Jr. William A.
Wirthlin Alvin
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