Control wand for overhead personnel crane

Fire escape – ladder – or scaffold – Means maintaining platform level on angularly movable support – Swingable support

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Details

200 6A, H01H 2504

Patent

active

045208948

ABSTRACT:
The invention is a manually operable control wand for use with hydraulically actuated overhead personnel cranes or "Cherry Pickers". The wand is fixedly secured to a personnel carrying enclosure and includes a pair of operating shafts operatively coupled together and to a mounting base. A plurality of electrical switches which effect operation of the hydraulic actuator means of the overhead personnel crane and mounted adjacent the operator levers in positions such that movement of the operating levers in positions such that movement of the operating levers in the direction of desired movement of the personnel enclosure produces the corresponding movement of the enclosure.

REFERENCES:
patent: 2627560 (1953-02-01), Eitel
patent: 2679678 (1954-06-01), Stephan
patent: 3293381 (1966-12-01), Eitel
patent: 3401240 (1968-09-01), Groves
patent: 3828148 (1974-08-01), Roeser
patent: 4041258 (1977-08-01), Harada
patent: 4181827 (1980-01-01), Diepeveen
patent: 4218702 (1980-08-01), Brocard
patent: 4237629 (1980-12-01), Schmidt
patent: 4330694 (1982-05-01), Ogawa
patent: 4382166 (1983-05-01), Kim

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