Fire escape – ladder – or scaffold – Stackable – Male and female connecting means
Patent
1984-07-20
1986-08-05
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Stackable
Male and female connecting means
182179, 403 49, 29515, 2281734, E04G 730
Patent
active
046037560
ABSTRACT:
In a scaffolding system in which vertical metal scaffold pipes are connected to non-vertical metal scaffold pipes by disc-shaped bridged connecting flanges, each non-vertical scaffold pipe has a wedge-shaped end portion terminated with edges which are curved at the end face of the pipe inwardly of the pipe and form together a smooth supporting surface supported against the outer wall of the adjacent vertical scaffold pipe. Each non-vertical scaffold pipe is provided with a slot in which the disc-shaped connecting flange is engaged in the assembled scaffolding.
REFERENCES:
patent: 3726414 (1973-04-01), Konstant
patent: 4083640 (1978-04-01), Lovering
patent: 4290573 (1981-09-01), Shapiro
patent: 4493578 (1985-01-01), D'Alessio
Chin-Shue Alvin
Machado Reinaldo P.
Striker Michael J.
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