Fire escape – ladder – or scaffold – Pitched roof conforming scaffold
Patent
1984-09-20
1986-10-14
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Pitched roof conforming scaffold
182117, 182121, 182152, 182206, E04G 312
Patent
active
046167340
ABSTRACT:
A firefighters' roof scaffolding is disclosed which is used by firefighters for standing upon the roof of a burning building in order to make a ventilation hole in the roof for ventilating the gases, and the like, from the interior of the building. The scaffolding has a cross beam of hollow construction, which mounts at one end a ladder attaching device to attach one end of the cross beam between two adjacent rungs of a conventional roof ladder suspended from the peak of the roof. The other end of the cross beam is provided with a roof attaching device for suspending that end from the roof itself. Each of the ladder attaching device and roof attaching device is secured to a respective end of the cross beam by a mounting block, which is juxtaposed adjacent a mounting plate positioned in the hollow interior of the respective end of the cross beam. A pivot pin interconnects the mounting plate and the mounting block, such that the end of the pivot pin is threaded for reception into a threaded central opening in the mounting block. The mounting block may, therefore, be rotated relative to its respective mounting plate along with the pivot pin, or may be rotated relative to both its respective mounting plate and pivot pin, so as to position the mounting block in one of two fixed, angular positions relative to the mounting plate: One position being for attachment purposes, and one position being for folding purposes. Cross braces is also mountable in two fixed transverse positions relative to the respective end of the cross beam, so that the cross beam may be attached to either of the two currently-used types of roof ladders, so as to position the cross beam below the peak of the roof the same distance regardless of which type of roof ladder is being used. The roof attaching device for the end of the cross beam is made up of two U-shaped channel members interconnected by a plurality of cross braces.
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Phelps Philip
Rose Ricky
Benn Marvin N.
Chin-Shue Alvin
Gerstein Milton S.
Machado Reinaldo P.
Phelps Philip W.
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