Fire escape – ladder – or scaffold – Wall- or floor-attached – Ladder
Patent
1987-06-26
1988-01-19
Machado, Reinaldo P.
Fire escape, ladder, or scaffold
Wall- or floor-attached
Ladder
182206, 114362, B63B 2920, E06C 748, E06C 136
Patent
active
047199890
ABSTRACT:
Improved boat boarding ladders, that may be mounted on a boat in a boarding position wherein they extend into the water and mounted in different stowage position wherein they are clear of the water, are formed of a step section, a support section and mounting units, all of which are separable from each other. The step section has a pair of tubular siderails and a plurality of steps fixed between them. The support section includes a pair of U-shaped tubular members each braced by a bar that is fixed at its ends across the arcuate portion of such member. One free end of each U-shaped member is enlarged so the upper end of a siderail may be fitted therein and locked with a through pin so the support section extends normal to the step section. The mounting units each include a tubular portion into which ends of the U-shaped support section members may be fitted to hold the ladder in the boarding position, while ends of the step section siderails may be so fitted to mount the ladder in the stowage position. During stowage, the U-shaped members are folded to align with the ladder steps.
REFERENCES:
patent: 2758770 (1956-08-01), Wagner
patent: 2843393 (1958-07-01), Dahlander
patent: 3078955 (1963-02-01), Rich
patent: 3774720 (1973-11-01), Hovey
patent: 3804200 (1974-04-01), Sandberg
patent: 3858683 (1975-01-01), Rachocki
patent: 3944024 (1976-03-01), Adaz
patent: 4002223 (1977-01-01), Bernkrant
patent: 4462485 (1984-07-01), Terry
patent: 4637492 (1987-01-01), Herr
Machado Reinaldo P.
Palmer Carroll F.
Step-On Inc.
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