Geometrical instruments – Straight-line light ray type – Aerial bomb sight
Patent
1983-11-01
1984-10-30
Martin, Jr., William D.
Geometrical instruments
Straight-line light ray type
Aerial bomb sight
33251, 42 1S, F41G 110
Patent
active
044793073
ABSTRACT:
A sight assembly is provided including front and rear sights for mounting on the front and rear ends of a gun barrel. The front sight comprises a conventional upstanding vertically elongated blade sight member having vertical planar outwardly facing opposite side faces joined at their upper ends by a transverse horizontal top surface and the rear sight includes a pair of laterally spaced apart opposite side plates disposed transverse to and on opposite sides of the sight path extending between the front and rear sights and including opposing inner upstanding opposing transverse end edges having relatively angulated upper and lower portions as well as longitudinal top surfaces extending oppositely outwardly from the end edges. The upper portions of the end edges are vertically disposed and spaced apart a predetermined distance substantially equal to the thickness of the front blade sight member. The included angle between each of the end edge upper portions and the corresponding plate top surface is readily visually ascertainable at less than 90.degree. and more than 45.degree.. The lower portions of the end edges are downwardly divergent and define an included angle of less than 90.degree. and more than 45.degree..
REFERENCES:
patent: 1275147 (1918-08-01), Frensdorf
patent: 2610406 (1952-09-01), Chambers
patent: 3698091 (1972-10-01), Merrill et al.
Jacobson Harvey B.
Martin, Jr. William D.
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