Telescopic mast

Details Telescopic mast Telescopic mast

1979-10-15

1982-01-12

Perham, Alfred C.

Static structures (e.g., buildings)

Mechanism operated relatively movable shaft assembly

Longitudinally extensible by flexible drive or hoist

52118, 212267, 212264, B66C 2306

Patent

active

043098541

ABSTRACT:
A telescopic mast having a plurality of elements comprising the mast wherein the elements are slidably arranged in relation to each other, together with cables for the erection of the mast, wherein the cables are before the erection of the mast connected to all of the elements and the erection of the mast is carried out by a successive sliding of each element on the element therebelow, further including provision for separating the cables of each element after the end of the hoisting operation of that element.

REFERENCES:
patent: 1644613 (1927-10-01), Royer et al.
patent: 2795303 (1957-06-01), Muehlhause et al.
patent: 2942700 (1960-06-01), Parmenter et al.
patent: 3248830 (1966-05-01), Maynard
patent: 3302345 (1967-02-01), Ballantine
patent: 3328921 (1967-07-01), Keslin
patent: 3403485 (1968-10-01), Cernosek
patent: 3648850 (1972-03-01), Rochon et al.
patent: 3745725 (1973-07-01), Boucaud

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