Fire escape – ladder – or scaffold – Traversing – track-mounted
Patent
1988-11-21
1989-07-11
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Traversing, track-mounted
182 91, 182 97, 114362, B63B 2714
Patent
active
048463035
ABSTRACT:
A pipe track has a groove in which a ladder is slidably mounted for movement between ends of the track. A pair of spaced, downwardly extending notches at one end of the groove permit the ladder to be pivoted downwardly to occupy a vertical position coplanar with the track; and a pair of spaced, upwardly extending notches at the other end of the groove permit the ladder to be pivoted upwardly to occupy a vertical position coplanar with the track.
REFERENCES:
patent: 2059240 (1936-11-01), Johnston
Cooper Richard F.
Williamson Michael R.
Machado Reinaldo P.
Mulrooney John J.
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