Fire escape – ladder – or scaffold – Scaffold external of shaft
Patent
1978-01-31
1979-01-16
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Scaffold external of shaft
182163, 182116, A47C 910, A45F 326
Patent
active
041344740
ABSTRACT:
A portable observation stand for mounting on trees having a wide range of diameters. The stand includes a frame, which is detachably secured to a selected tree, and an articulated ladder which may be retained in a climbing position, for entry by an outdoorsman, and in a base position to provide support for a floor during use. A U-shaped rail may be mounted on the frame, and a shroud which encloses the stand may be secured to the rail.
REFERENCES:
patent: 3065821 (1962-11-01), Hundley
patent: 3817350 (1974-06-01), Gray
patent: 3961686 (1976-06-01), Starkey
patent: 3990536 (1976-11-01), Wilburn
patent: 4022292 (1977-05-01), Von Gompel
Kaplan Reuben W.
Stavenau Harold L.
Machado Reinaldo P.
Truth Incorporated
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