Hydraulically operated access equipment

Details Hydraulically operated access equipment Hydraulically operated access equipment

1979-04-13

1981-10-27

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Means maintaining platform level on angularly movable support

Swingable support

B66F 1104

Patent

active

042968330

ABSTRACT:
Access equipment comprising a wheeled vehicle (10) carrying on its chassis a turntable (11) on which is rotatably mounted a supporting structure (12) on which, in turn, is mounted a pair of articulated booms (14,16) having hydraulic actuating rams (20,21) and carrying a personnel platform (18) at the free end of the boom assembly, there being at each end of each boom a guide pulley or half pulley (22,23,24) around which passes a control or support line (26) anchored to the supporting structure (at 27) and to the platform (at 28), the line (26) remaining taut along a path whose length remains constant irrespective of the configuration of the boom assembly.

REFERENCES:
patent: 2928493 (1960-03-01), Clements
patent: 3072215 (1963-01-01), Rush
patent: 4081055 (1978-03-01), Johnson

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