Ladder hoist

Details Ladder hoist Ladder hoist

1977-09-21

1980-01-15

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder with vertically moving platform or escape

Ladder supports platform

182127, 182142, 187 10, B66B 920

Patent

active

041834232

ABSTRACT:
A cart bolted to a short bottom section of a ladder carries a winch. A cable on the winch runs over a pulley on a short top section of the ladder and is connected to a carriage having wheels running in channel-like side members of the ladder. The carriage has an adjustable, folding platform and a back which pivots to a horizontal position when the carriage reaches the top of the ladder. A bottom pushbutton control and a top pushbutton control are provided.

REFERENCES:
patent: 976240 (1910-11-01), Winkler
patent: 2855072 (1958-10-01), Drummond
patent: 2943708 (1960-07-01), Sasgen
patent: 3282375 (1966-11-01), Ray
patent: 3289787 (1966-12-01), McSwain

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