Screw-type ladder leveler

Details Screw-type ladder leveler Screw-type ladder leveler

1986-08-25

1988-05-17

Machado, Reinaldo P.

Fire escape, ladder, or scaffold

Safety device for ground-supported ladder

Terminal foot or shoe

182201, E06C 744

Patent

active

047444410

ABSTRACT:
A device for leveling a metal ladder comprising a mounting bracket which can be attached to the outside web of a ladder side rail, a threaded shaft embodied with a handle at its upper distal end and a convex semi-shperical head at its lower distal end which is sized to operate within a threaded bore hole in the distal member of said mounting bracket in order to provide means to raise or lower a pivotable ladder foot embodied with a concave semi-spherical surface within the raised center portion of said foot in order to provide a pivoting means for said foot with respect to said threaded shaft.

REFERENCES:
patent: 766210 (1904-08-01), Young
patent: 1179391 (1916-04-01), Bachman
patent: 2362170 (1944-11-01), Swaisgood

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