Geometrical instruments – Straight-line light ray type – Structurally installed
Patent
1981-07-24
1983-11-15
Martin, Jr., William D.
Geometrical instruments
Straight-line light ray type
Structurally installed
33261, F41G 146
Patent
active
044147511
ABSTRACT:
A bow sight includes a sight assembly having a supporting block provided with a transverse bore which slidably receives a spring loaded sighting pin for movement between a sighting position and a nonsighting position. A latch is pivoted on the block for releasable engagement with the sighting pin so that when engaged the pin is held in its nonsighting position, and when disengaged the spring forces the pin to its sighting position. A plurality of such assemblies may be mounted on a base plate in vertically spaced arrangement and the base plate in turn may be mounted on a bow to provide a device for sighting targets at various ranges.
REFERENCES:
patent: 462475 (1891-11-01), Dobbel
patent: 1408276 (1922-02-01), Eickhoff
patent: 3310875 (1967-03-01), Kowalski
patent: 3696517 (1972-10-01), Larson
patent: 4305208 (1981-12-01), Larson
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