Portable mast for radio link systems

Details Portable mast for radio link systems Portable mast for radio link systems

1978-08-01

1980-07-08

Moore, David K.

Communications: radio wave antennas

Antennas

With support for antenna, reflector or director

343901, 52123, H01Q 110

Patent

active

042120152

ABSTRACT:
A portable radio link system mast, particularly for use in the field, employing mast tube elements which are lifted, one after the other, by means of a lifting device installed in the head of the stand and, after a certain height is reached, are connected with always the next mast tube element. The lifting device consists of three frictionally self-locking pawls arranged on top of each other, a carrying pawl, a lowering pawl and a lifting pawl, which permit a slipless lifting, lowering and locking of the mast tube elements in connection with springs. A cardigan cam lever with a feeler stud draws attention to a wrong connection of the mast tube elements, and a mast tube element in the range of the lifting device can only be pushed out of the head of the stand after a correct contact is established with the following mast tube element.

REFERENCES:
patent: 1031185 (1912-07-01), Krulish
patent: 1851420 (1930-09-01), Carson, Jr.
patent: 2369195 (1945-02-01), Wiertz
patent: 2424929 (1947-07-01), Haney
patent: 2793717 (1957-05-01), Camburn
patent: 3320703 (1967-05-01), Hawthorn et al.
patent: 3688455 (1972-09-01), Zebuhr

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