Transport device for movement of an operator up and down a utili

Details Transport device for movement of an operator up and down a utili Transport device for movement of an operator up and down a utili

1976-03-05

1977-02-22

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Pole or strand grasping-type climber

182187, A63B 2700

Patent

active

040087859

ABSTRACT:
A device to facilitate the movement of an operator along a supporting pole for electric lines and the like including a frame forming a footboard for the operator, a side supporting roller, two linkages each comprising a pair of "X" linked rods, whose intermediate pivot is slidable on the frame, and a pair of symmetrical rods engaged with a pin fixed to the frame. A pair of drive rollers is mounted at the ends of the two linkages, and the weight of the assembly and of the operator acts on the frame to urge the drive rollers towards each other and against the pole.

REFERENCES:
patent: 742447 (1903-10-01), Kidder
patent: 957473 (1910-05-01), Olafson
patent: 2174525 (1939-10-01), Padernal
patent: 2654638 (1953-10-01), Elliott
patent: 2727335 (1955-12-01), Susil
patent: 3520383 (1970-07-01), Loock

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