Escape ladder

Details Escape ladder Escape ladder

1984-09-17

1985-07-30

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder

Flexible

182 63, 182178, 182206, E06C 156, E06C 708

Patent

active

045316120

ABSTRACT:
The invention relates to a portable emergency fire escape ladder comprising a large double hook adapted to fit over a window ledge, tubular steps suspended by means of galvanized steel cables, the steps secured on the suspension cables by means of pressed steel rings. The tubular steps are slightly larger in diameter at one end than the other allowing the steps to join together to form a pole. There is a connecting rod under the double hook for the attachment of the top tubular step in the pole position. The double hook has a curvature at the lower end in order that the tubular steps may be spaced a distance from the wall to allow room for the person's foot. The double hook is provided with a pull cable which is strung through the frame of the double hook, to the end pieces, so that pulling on the cable will release the double hook from the window ledge allowing a person down the wall.

REFERENCES:
patent: 195161 (1877-09-01), Philbrook
patent: 296145 (1884-03-01), Davis
patent: 331736 (1885-12-01), Rose
patent: 342924 (1886-06-01), Nordenborg
patent: 869151 (1907-10-01), Zube
patent: 3834492 (1974-09-01), Ronk
patent: 3907064 (1975-09-01), Svalberg
patent: 4254846 (1981-03-01), Soave

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