Remote fixture aiming device

Details Remote fixture aiming device Remote fixture aiming device

1977-08-15

1979-01-02

Phillips, Charles E.

Geometrical instruments

Indicator of direction of force traversing natural media

Level or plumb, terrestrial gravitation responsive

33391, 33402, G01C 906

Patent

active

041320042

ABSTRACT:
A sensing system for measuring the angle of aim of an adjustable remote lighting fixture comprising a pendulum adapted to be mounted on the remote fixture, a potentiometer coupled to the pendulum, and a battery-powered measuring circuit connectable by means of a cable to the potentiometer to thereby form a resistance bridge circuit. During operation, a microammeter connected in the bridge circuit provides a read out proportional to the angle formed between the suspended pendulum and a predetermined reference surface of the remote fixture.

REFERENCES:
patent: 1962045 (1934-06-01), Walton
patent: 2512135 (1950-06-01), Bridy
patent: 2972194 (1961-02-01), Ewing
patent: 3566386 (1971-02-01), Hamilton
patent: 3852890 (1974-12-01), Locklair et al.
patent: 3865265 (1975-02-01), Brudi et al.
patent: 3869805 (1975-03-01), Dieringer

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