Fire escape – ladder – or scaffold – Having transpositioning base and erecting means
Patent
1983-11-25
1985-12-03
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Having transpositioning base and erecting means
182 2, E04G 136
Patent
active
045561249
ABSTRACT:
An arrangement for use in the inspecting and carrying out of maintenance on, for example, the undersurface of bridges and viaducts, including piers thereof, the arrangement being adapted for mounting upon a mobile frame, the arrangement comprising in combination a first elongated member adapted to be rotatably mounted upon the mobile frame; a second elongated member secured to the first member and adapted to extend therefrom; motor means for use in rotating the second member relative to the first member; a third elongated member hingedly secured to the second elongated member adjacent the free end thereof; fifth wheel means associated with the third elongated member for use in rotating the third elongated member relative to the second elongated member; and a fourth elongated member secured to the third elongated member and extendable therefrom so as to lie in spaced parallel relation to the first and second elongated members.
REFERENCES:
patent: 3608669 (1971-09-01), Lindsay
patent: 4074790 (1978-02-01), Colbachini
patent: 4088200 (1978-05-01), Cowley
patent: 4154318 (1979-05-01), Malleone
Chin-Shue Alvin
Machado Reinaldo P.
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