Electrical resistors – Mechanically variable – With resistor actuator position indicator
Patent
1976-08-19
1978-03-28
Albritton, C. L.
Electrical resistors
Mechanically variable
With resistor actuator position indicator
1161241A, 338125, 338130, 338227, H01C 1000
Patent
active
040817814
ABSTRACT:
An elongated tape fabricated of an electrically insulative material has a pair of strips which run therealong, these two strips being joined together at one end thereof but not at the other, to form an open loop. The strips are fabricated of an electrically conductive material having a relatively high resistivity. The opposite ends of the tape are each wound on a separate reel, the tape being fed from one reel to the other by means of a drive mechanism. The tape is marked along its length with indicia representing resistances between the two strips for each position of the tape between the two reels. A window with a marker is provided to read out these resistances. A pair of electrical wipers are mounted in contact with the pair of strips to connect the strips to a circuit or the like, in which the resistance is to be utilized.
REFERENCES:
patent: 2860215 (1958-11-01), Williams
Albritton C. L.
Sokolski Edward A.
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