Communications: electrical – Selective – Having indication or alarm
Patent
1977-11-21
1979-05-01
Farley, Richard A.
Communications: electrical
Selective
Having indication or alarm
248278, H04R 134
Patent
active
041526902
ABSTRACT:
Apparatus for mounting an acoustic transducer in connection with a boat to allow the transducer to be moved about beneath the water and thereby scan more than one direction. The apparatus comprises a flexible control cable with a device which actuates it fastened to the cable's upper end. Fastened to its lower end is a pivot mechanism which converts the action of the control cable to a pivotal movement. This pivot mechanism holds a transducer support mount such that the action of the control cable pivots the transducer support mount; preferably, in a vertical plane. The pivot mechanism is connected with the boat such that the pivot mechanism and the transducer it holds are held beneath the water; and, preferably, such that the transducer mount can be rotated 360.degree. about the vertical axis, as in a substantially horizontal plane.
REFERENCES:
patent: 2671206 (1954-03-01), Krause
patent: 2947856 (1960-08-01), Fox
patent: 3880106 (1975-04-01), Farmer
patent: 3989216 (1976-11-01), Veatch
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