Fire escape – ladder – or scaffold – Stackable – Male and female connecting means
Patent
1982-09-30
1984-06-05
Britts, Ramon S.
Fire escape, ladder, or scaffold
Stackable
Male and female connecting means
182179, 182121, 52637, B66C 1104, E04G 01
Patent
active
044523378
ABSTRACT:
Sectional scaffolding assemblies are widely used by craftsmen in the construction industry. Multiple levels of interlocking scaffolds are employed to reach high locations. The present invention is shown as a vertical hoisting pole or mast that is furnished with vertically-spaced clamp members located adjacent the lower end of the mast for coupling the mast to both an intermediate upright on an end frame of the scaffolding as well as to vertically-spaced rungs on the end frame. A pulley assembly is suspended from the top of the mast, and it includes a long rope acting with the pulley. One end of the rope is fitted with a loop that is adapted to be lowered over a top corner pin of the end frame. This loop carries an elongated push rod that has a hook formed on the free end thereof. This push rod may be used for lifting the loop off of the corner pin so as to easily disconnect the rope from the end frame, and the hook end of the push rod may serve for lifting the platform or deck from one level of scaffold to another. A main objective of using this hoisting mast is to shift the load of raising the scaffolding elements to the person working at ground level so that the person working at the top level will have less work to do and will be in a safer operating position.
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patent: 3504461 (1970-04-01), Copeland
Britts Ramon S.
Caslin Richard L.
Chin-Shue Alvin
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