Geometrical instruments – Straight-line light ray type – Multisight line
Patent
1997-10-06
1999-10-19
Jordan, Charles T.
Geometrical instruments
Straight-line light ray type
Multisight line
F41G 133
Patent
active
059668253
ABSTRACT:
The front sight comprises an A-shaped support whose top is formed by a cross-member between two raised side plates for protecting the front sight which is adjustably mounted in the cross-member. A knob is housed to rotate freely in the cross-member and is provided with an axial tapped hole. The front sight is constituted by an end in the form of a rod for aiming purposes and by a threaded body received in the tapped hole of the knob, said body being provided with a pin for preventing it from rotating, the pin being slidably received in two slots of the hole in the support that freely receives the body of the front sight. The knob projects sideways a little from the support to be accessible to the fingers, and it includes indexing means.
REFERENCES:
patent: 1438694 (1922-12-01), Burton
patent: 2176743 (1939-05-01), Loomis
patent: 2682702 (1954-07-01), Dahlberg
patent: 4574335 (1986-03-01), Frimer
patent: 4766800 (1988-08-01), Miller et al.
Buckley Denise J.
Jordan Charles T.
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