Fire escape – ladder – or scaffold – Unitary foldable – rigid scaffold or ladder – Trestle
Patent
1989-10-17
1990-05-22
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Unitary foldable, rigid scaffold or ladder
Trestle
182225, B27B 2100, B25H 106
Patent
active
049269666
ABSTRACT:
A folding saw-horse including a back and a pair of leg pairs, said leg pairs being held in brackets that fix the legs in inverted V form to swing at the apexes of the V shapes on the back between useful, supporting position, and non-utile folded position relative to the saw-horse back. The inter-relation of the legs in each pair is fixed by brackets that pivot on the saw-horse back adjacent end thereof.
REFERENCES:
patent: 889494 (1908-06-01), Van Halder
patent: 1435738 (1922-11-01), Reiman
patent: 3064755 (1962-11-01), Illes
patent: 4226301 (1980-10-01), McDaniel
patent: 4296834 (1981-10-01), Kroger
patent: 4515243 (1985-05-01), Prior
Fay Charles R.
Machado Reinaldo P.
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