Fire escape – ladder – or scaffold – Wall- or floor-attached
Patent
1995-02-13
1997-04-01
Chin-Shue, Alvin C.
Fire escape, ladder, or scaffold
Wall- or floor-attached
182150, E04G 310
Patent
active
056157517
ABSTRACT:
An economic scaffold system used with wood and metal panels in the pouring of concrete foundations and the like. The system is designed to meet a recent 6 foot wall height restrictions federally mandated by OSHA. The system includes a pair of one piece panel brackets and a pair of one piece extension brackets make of heavy metal rod. The panel brackets are used alone with 8 foot high panels and with the extension brackets when using 10 foot high panels. The panel brackets are used to suspend opposite ends of a wood plank next to a side of a panel. The wood plank is used for workman to stand on during the forming of a foundation and when pouring concrete. The panel brackets include a pair of vertical support arms with an upper portion of the arms bent into an upper hook portion. The upper hook portion is received on top of the wood panel. A lower portion of the arms is bent into a "J" shaped plank support member. The plank support member is used to receive a portion of the plank thereon. The extension brackets also include a pair of vertical support arms with an upper portion of the arms bent into an upper hook portion. The upper hook portion is received on top of the panel. A lower portion of the arms is bent into a loop. The upper hook portion of the panel brackets is used for receipt over the loop of the extension brackets when the panel brackets are suspended therefrom.
REFERENCES:
patent: 1619434 (1927-03-01), Reese
patent: 1631848 (1927-06-01), Yager
patent: 4022293 (1977-05-01), Hallagin
patent: 5398824 (1995-03-01), Wolff
Chin-Shue Alvin C.
Crabtree Edwin H.
Margolis Donald W.
Pizarro Ramon L.
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