Fire escape – ladder – or scaffold – Safety device – platform associated – Railing
Patent
1985-06-21
1987-02-03
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Safety device, platform associated
Railing
182181, 182224, 182214, E04G 132
Patent
active
046403850
ABSTRACT:
There is provided portable scaffolding units useful in pairs or more having an angled main leg attached to a walkway support T-brace leaning against the wall or surface being worked. The T-brace rests against the work surface held with no-slip pliable ribbed facing and by an adjustible nailer. The positioning of a raised work walkway is side supported by angled braces affixed to both sides of the walkway support T-brace. The main leg and the angle braces are both adjustible in length and affixed with leveling feet for holding the structure firmly on uneven or soft ground. Safety brackets are supplied to hold a safety rail at a sufficiently high position above a plank walkway to prevent step-back accidents.
REFERENCES:
patent: 798371 (1905-08-01), Ward
patent: 921431 (1909-05-01), Miller
patent: 2272957 (1942-02-01), Walp
patent: 2549212 (1951-04-01), Lane
patent: 2639853 (1953-05-01), Pierce
patent: 2666608 (1954-01-01), Holm
patent: 2896891 (1959-07-01), Ernst
patent: 2966957 (1961-01-01), Ireland
patent: 3472338 (1969-10-01), Weidman
patent: 3595510 (1971-07-01), Hutchinson
patent: 4331217 (1982-05-01), Stecklow
Chin-Shue Alvin
Machado Reinaldo P.
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