Geometrical instruments – Straight-line light ray type – Aerial bomb sight
Patent
1993-11-01
1995-03-14
Cuchlinski, Jr., William A.
Geometrical instruments
Straight-line light ray type
Aerial bomb sight
33286, 279 202, 279 212, F41G 300, B23B 522
Patent
active
053967089
ABSTRACT:
A self-centering bore arbor device is disclosed which is self-aligning when inserted into the barrel of a shotgun and to which can be mounted a bore scope in a parallax relation with the central axis of the gun barrel. The self-centering property of this device is produced by a single source of pressure transmitted by a helical spring, inside a cylindrical bore collet tube, pressing against a circular 60 degree conical wedge inside the collet tube. This conical wedge distributes this pressure equally outward to the posterior free ends of three spring leaves displaced from each other about the posterior outer circumference of the collet tube by 120 degrees. Under this pressure the free ends of these spring leaves press outward against the inner wall of the gun barrel holding the collet tube in a proper concentric alignment with the gun barrel when the tapered muzzle plug forming the front end of the bore arbor is seated firmly against the inside of the gun barrel muzzle. The adaptable self-centering feature of the bore arbor provides the facility for use with the tapering barrel bore of a shotgun.
REFERENCES:
patent: 2476981 (1949-07-01), Horton
patent: 2766532 (1956-10-01), Eisele
patent: 2773309 (1956-12-01), Elliott
patent: 3112567 (1963-12-01), Flanagan
patent: 3228108 (1966-01-01), Chaperon
patent: 3744133 (1973-07-01), Fukushima et al.
patent: 3753570 (1973-08-01), Espasa
patent: 3980250 (1976-09-01), Persson
patent: 4057905 (1977-11-01), Piaja
patent: 4090305 (1978-05-01), Cassidy
patent: 4530162 (1985-07-01), Forrest et al.
patent: 4534116 (1985-08-01), Davis
patent: 4773164 (1988-09-01), Taylor et al.
patent: 4861257 (1989-08-01), Siotani
Brownells, Catalog #45, 1992-1993 Catalog, p. 192.
Bennett G. Bradley
Cuchlinski Jr. William A.
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