Fire escape – ladder – or scaffold – Pitched roof conforming scaffold
Patent
1990-08-08
1991-09-24
Chotkowski, Karen J.
Fire escape, ladder, or scaffold
Pitched roof conforming scaffold
248237, E04G 300
Patent
active
050507052
ABSTRACT:
An apparatus for positioning an individual in a secure relationship relative to a shingle or shake roof construction includes a platform with spaced rails underlying the platform, the platform angulating adjustable relative to the rails. Each rail includes a forward and rear hook plate, with the forward hook plate including a bifurcated hook member, and the rear hook plate including a bifurcated rear hook member and a single hook forward portion. An anchor member is provided including a plurality of legs secured radially to and in equally spaced relationship to a central support, with each of the legs including a spring mount to permit deflection of the legs in securement to a shingle-type structure, with a second leg bisecting a plurality of adjacent legs rigidly mounted to the central plate. Further, ladder leg support structure is provided including a "U" shaped claw member, with a single forward claw and bifurcated rear claw organization and spaced parallel flanges to pivotally receive a ladder leg therebetween for mounting upon the aforenoted roof structure.
REFERENCES:
patent: 354703 (1886-12-01), Huestis
patent: 524661 (1894-08-01), Austin
patent: 955159 (1910-04-01), Hillmon
patent: 1028362 (1912-06-01), King
patent: 1143555 (1915-06-01), Schimmelpfennig
patent: 1471947 (1923-10-01), Cornelius
patent: 1743371 (1930-01-01), Montag
patent: 2285663 (1942-06-01), Ingram
patent: 4852692 (1989-08-01), Flaherty
Chotkowski Karen J.
Gilden Leon
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