Fire escape – ladder – or scaffold – Ladder and platform – Platform with ladder as support
Patent
1986-10-27
1987-10-13
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Ladder and platform
Platform with ladder as support
182187, 182189, A01M 3102
Patent
active
046992480
ABSTRACT:
An observation stand has a rectangular platform acting as a floor and removably secured, at its center, at the upper end of a mast. The latter is made up of a series of cylindrical tubes having generally the same length but decreasing in diameter, from one tube to the next, in order that the tubes may be slid one into the other with, of course, the larger tube on the outside. The mast is mounted by its base on a stake, driven into the ground, by means of a device which allows the mast to pivot with respect to the stake so that the stand may be completely mounted when lying over the ground before being straightened up into vertical position and then fixed in that vertical position. The mast is provided with removable rungs capable of giving access to a trap-door formed on the very platform. The latter is surrounded by a removable guardwall.
REFERENCES:
patent: 3220766 (1965-11-01), Kates
patent: 3882964 (1975-05-01), Schellenberg
patent: 4240521 (1980-12-01), Naka
patent: 4274508 (1981-06-01), Hughes
patent: 4552246 (1985-11-01), Thomas
patent: 4592446 (1986-06-01), White
patent: 4614252 (1986-09-01), Tarner
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