Supports – Brackets – Adjustable
Patent
1973-02-12
1976-04-27
Schultz, William H.
Supports
Brackets
Adjustable
343764, 343882, H01Q 300
Patent
active
039529843
ABSTRACT:
Bolted or otherwise secured in offset relationship to one of the legs of a radio or television tower or mast is a bracket to the top of which is fixedly secured an inner sprocket. Rotatably mounted in this bracket coaxial with the inner sprocket is an inner shaft to the top of which is fixedly secured the rearward hub of an inner arm. Rotatably mounted in the forward hub of the inner arm is an intermediate shaft to the lower end of which is fixedly secured a lower intermediate sprocket carrying an endless sprocket chain drivingly connecting it to the inner sprocket. Fixedly secured to the forward hub of the inner arm coaxial with the intermediate shaft above the lower intermediate sprocket is an upper intermediate sprocket. Fixedly secured to the upper end of the intermediate shaft is the rearward hub of an outer arm, in the forward hub at the outer end of which is journaled an outer shaft. Fixedly secured to the outer shaft is an outer sprocket drivingly connected by a sprocket chain to the upper intermediate sprocket. Fixedly connected to the upper end of the outer shaft is an antenna boom which in turn carries a conventional antenna array for radio or television communication. A torque motor is optionally mounted on the bracket and drivingly connected to the inner shaft for power-operation of the rotary antenna mount, or alternatively it may be rotated manually through suitable gearing.
REFERENCES:
patent: 239644 (1881-04-01), Bowyer
patent: 491017 (1893-01-01), Huntman
patent: 818982 (1906-04-01), Skelley
patent: 881875 (1908-03-01), Trippensee
patent: 2556026 (1951-06-01), Carlisle
patent: 3401568 (1968-09-01), Blatt
patent: 3550892 (1970-12-01), Propst
patent: 3693922 (1972-09-01), Gueguen
patent: 3706235 (1972-12-01), Duncan
Bugbee Willis
Schultz William H.
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