Fire escape – ladder – or scaffold – Ladder – With hook or grab
Patent
1981-01-19
1983-08-09
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Ladder
With hook or grab
182 45, 182129, 182214, E06C 748
Patent
active
043973752
ABSTRACT:
A clamping member and a holding member adapted to be positioned on opposite sides of a ladder adjacent the top thereof extending in a direction perpendicular to the ladder and clamping means for clamping the ladder between the clamping member and holding member whereby the ladder may be positioned and held on a peaked roof or the like.
REFERENCES:
patent: 1494267 (1924-05-01), Melsha
patent: 1658753 (1928-02-01), Wirth
patent: 2272642 (1942-02-01), Owen
patent: 2803388 (1957-08-01), Ross
patent: 4049283 (1977-09-01), Brookes
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