Ladder scaffold

Details Ladder scaffold Ladder scaffold

1988-08-15

1989-04-25

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Ladder and platform

Platform with ladder as support

182122, 248238, E06C 716, E04G 130

Patent

active

048239119

ABSTRACT:
A scaffold plank hanger is suspended from a rung of a ladder by hooks engaging such rung which are spaced apart less than the width of the ladder. Such hooks carry a crossbar of a length greater than the width of the ladder. A scaffold plank has hooks projecting from one end which are hooked over opposite end portions of the hanger crossbar between its ends and the adjacent ladder rails, respectively.

REFERENCES:
patent: 711384 (1902-10-01), Carman
patent: 1351795 (1920-09-01), Schnabel
patent: 1664073 (1928-03-01), Haywood
patent: 2318493 (1943-05-01), Johnson
patent: 2544368 (1951-03-01), Thorne
patent: 2619390 (1952-11-01), Johnson
patent: 2637517 (1953-05-01), Brensike
patent: 2656223 (1953-10-01), Gray
patent: 2778595 (1957-01-01), Mastin
patent: 4542874 (1985-09-01), Roning

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