发明名称 Articulation device for use in raising and supporting an antenna mast
摘要 A device for articulating a base of a mast for raising a mast carrying an antenna into an upright position, the device comprising a mast-engaging member which includes a collar (6) provided on one side with a means for affixing the base (2) of the mast to the member and, on its other side, is provided with two parallel depending plates (8), each having a slotted opening (10), said openings (10) open out at free ends (9) of the plates in order to form a pair of spaced forks, the openings being at least equal in size to the diameter of a journal (11) having a horizontal axis and supported by a stake means (12) that is fixed to the ground (4), whereby the forks permit the member to be articulated about the journal.
申请公布号 US4697779(A) 申请公布日期 1987.10.06
申请号 US19850745933 申请日期 1985.06.18
申请人 GUISLAIN, GUY 发明人 GUISLAIN, GUY
分类号 E04H12/18;F16B7/16;H01Q1/12;(IPC1-7):F16B7/00 主分类号 E04H12/18
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