Fire escape – ladder – or scaffold – Ladder – Flexible
Patent
1983-03-03
1984-03-06
Machado, R. P.
Fire escape, ladder, or scaffold
Ladder
Flexible
182 22, 182206, E06C 136, E06C 156, E06C 158
Patent
active
044348711
ABSTRACT:
The present invention entails an emergency escape ladder that can be used to descend from one level of a building downwardly to another level, after which the ladder may be repeatedly repositioned for descending on downwardly in a like manner. Functionally the emergency escape ladder includes a plurality of treads interconnected by a pair of flexible tie lines in the form of chains. Because of the flexible chains, the emergency escape ladder may assume an inoperative position where the same can be folded and stored in a compact area. Further, the emergency escape ladder is provided with a plurality of stabilizing bars that are secured together in end-to-end relationship, with said treads sandwiched therebetween. When the stabilizing bars are interconnected between treads, the ladder assumes an operative mode or position where the same is elongated and generally rigid. Finally, the emergency escape ladder of the present invention includes about its upper end both a hook structure for enabling the ladder to be secured around a window ledge, and a cable and latch assembly. The cable and latch assembly enables the entire ladder to be tied to an object within the structure or to be tied to a part of the structure itself. In the case of a fire, or other emergency occurrence, the cable can be utilized as further security for supporting the ladder in a depending position, or in the case where the hook structure is not compatible with a window ledge or the like, there the cable can serve as the sole support for the ladder in a depending position.
REFERENCES:
patent: 406257 (1889-07-01), Butler
patent: 800934 (1905-10-01), McArthur
patent: 1177557 (1916-03-01), White
patent: 1909231 (1933-05-01), Sonetto
patent: 2223980 (1940-12-01), Zent
patent: 2615665 (1952-10-01), Baxter
patent: 4143741 (1979-03-01), Souza
patent: 4157130 (1979-06-01), Aberer
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