Device for raising a mast

Details Device for raising a mast Device for raising a mast

1985-06-18

1987-06-30

Yasich, Daniel M.

Communications: radio wave antennas

Antennas

With support for antenna, reflector or director

52116, 248533, 343915, H01Q 112, E04H 1234

Patent

active

046774440

ABSTRACT:
The invention relates to a device for raising a mast from a ground lowered position to a raised position at which it is supported on a base. The lower end of the mast is supported on the base by a connecting link comprising an upper fork and a lower fork joined by a link. The lower fork is fixed relative to the mast, but can be articulated with the mast about a mast-raising axis. The upper fork of the connecting link is connected to the lower part of an arm of a lever along a folding axis which axis is orthogonal to the mast-raising axis.

REFERENCES:
patent: 2512151 (1950-06-01), Harrison
patent: 3141653 (1964-07-01), Jenkins
patent: 3450378 (1979-06-01), Cucka
patent: 3977148 (1976-08-01), Ranini
patent: 4167740 (1979-09-01), Shriver
patent: 4226405 (1980-10-01), Roodt

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