Geometrical instruments – Straight-line light ray type – Structurally installed
Patent
1985-02-27
1986-11-04
Stearns, Richard R.
Geometrical instruments
Straight-line light ray type
Structurally installed
33241, F41G 146, F41G 132
Patent
active
046203729
ABSTRACT:
A multi-range, accuracy enhancing sight system for the archery bow comprising a vertical array of micro-telescopic or restricted-field direct-view collimator sights mounted so that both the field of each sight and the position of the parallax-free fiducial reference of each sight within the field are independently adjustable in the horizontal and vertical directions. In a preferred embodiment each sight is affixed to an elongated bridge member adjustably supported in both the vertical and horizontal directions at each end from threaded support rods affixed thereto. Nuts clamp the threaded support rods in corresponding vertically extending slots provided in a support member attached to the bow. Interaction between opposing supports facilitates, in a simple and convenient manner, the fine incremental adjustment capability required for the system to perform well. Alternative embodiments increase the isolation between adjustments and provide for vernier vertical adjustment.
REFERENCES:
patent: 3266149 (1966-08-01), Powell
patent: 3302292 (1967-02-01), Akin, Jr.
patent: 3700339 (1972-10-01), Steck, III
patent: 3949482 (1976-04-01), Ross
patent: 4291469 (1981-09-01), Weast
patent: 4462163 (1984-07-01), Tentler et al.
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