Access equipment

Details Access equipment Access equipment

1979-11-13

1981-09-01

Oresky, Lawrence J.

Traversing hoists

Having boom shiftable vertically along a linear path

182 2, 212231, 212160, 414700, E04G 136, B66C 2306

Patent

active

042867215

ABSTRACT:
Apparatus enabling access to the interior surfaces bounding a large spaced comprises a pole adapted to extend vertically through the height of the space with its lower end located at the base of the space, at least one boom structure connected with said pole, a working platform connected to the end of said boom structure remote from said pole and the height of said boom structure is adjustable relative to said pole.

REFERENCES:
patent: 349066 (1886-09-01), Stahl
patent: 584187 (1897-06-01), McCabe et al.
patent: 1864934 (1932-06-01), Reeves
patent: 3306396 (1967-02-01), Goss
patent: 3407947 (1968-10-01), Valla
patent: 3556252 (1971-01-01), Atkins
patent: 3602335 (1971-08-01), Gustetic
patent: 3788414 (1974-01-01), Netter

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