Communications: radio wave antennas – Antennas – With means for moving directive antenna for scanning,...
Patent
1982-01-13
1984-10-02
Lieberman, Eli
Communications: radio wave antennas
Antennas
With means for moving directive antenna for scanning,...
343882, H01Q 302
Patent
active
044751109
ABSTRACT:
A lockable bearing apparatus for permitting rotation of adjacent members such as parts of an antenna mounting structure, wherein the adjacent members define circular bearing flanges surrounded and received by a coupling that can be tightened or loosened to lock or release the adjacent members. The coupling comprises an annular member defining an annular inwardly opening recess for receiving the flanges, and the flanges engage one another and are angled with respect to one another such that the coupling engages the flanges and urges them axially toward one another when the coupling is tightened. Stabilizing means for maintaining orientation of the adjacent members during rotation is disclosed, as well as means for selectively rotating the adjacent members with respect to one another. In the preferred embodiment for providing an azimuth axis in an antenna mounting structure, inexpensive sheet metal components are connected by the bearing apparatus embodying the invention.
REFERENCES:
patent: 2530098 (1950-11-01), Van Atta
patent: 2604593 (1952-07-01), Trowbridge
patent: 2605417 (1952-07-01), Andrews
patent: 2883665 (1959-02-01), Maratzke et al.
patent: 3146452 (1964-08-01), Rose
patent: 3158866 (1964-11-01), Powers
patent: 3711166 (1973-01-01), Wayson
"Voss V-Retainer Coupling Applications", Brochure of Voss Industries, Inc., (6 pp.).
"Voss V-Retainer Coupling Selection Guide", Bulletin No. 1275 of Voss Industries, Inc., (6 pp.).
"Aeroquip-Marman Industrial Products" Catalog 864 of Aeroquip Corporation, 1975, (42 pp.).
Lieberman Eli
Scientific-Atlanta, Inc.
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