Geometrical instruments – Straight-line light ray type – Multisight line
Patent
1975-12-29
1976-11-09
Aegerter, Richard E.
Geometrical instruments
Straight-line light ray type
Multisight line
33246, 350 10, F41G 138, G02B 2736
Patent
active
039901556
ABSTRACT:
A riflescope elevation adjustment assembly which reads directly in terms of target distance in addition to providing conventional "click" elevation settings. The assembly includes an adjustment knob which is externally accessible for rotation without use of tools or removal of parts. A distance scale, appropriately calibrated to the firearm and ammunition in use, is displayed on an annular flange extending from the knob to be positioned within an annular housing secured to the riflescope. The distance scale is viewed through a transparent portion of the housing, and is visible when the firearm is held in a normal aiming position.
REFERENCES:
patent: 1361063 (1920-12-01), Joeck
patent: 1474209 (1923-11-01), Reynolds
patent: 1985061 (1934-12-01), Scheller
patent: 2150629 (1939-03-01), Mossberg
patent: 2165796 (1939-07-01), Humeston
patent: 3826012 (1974-07-01), Pachmayr
Akin, Jr. Alfred A.
Miller Harold A.
Aegerter Richard E.
Bausch & Lomb Incorporated
Stearns Richard R.
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