Two-position ladder

Details Two-position ladder Two-position ladder

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

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