Fire escape – ladder – or scaffold – Wall- or floor-attached – Wall-mounted platform – with ladder
Patent
1983-01-17
1984-07-31
Machado, R. P.
Fire escape, ladder, or scaffold
Wall- or floor-attached
Wall-mounted platform, with ladder
182 91, 114363, 280166, B63B 2920
Patent
active
044624859
ABSTRACT:
Improved ladders for attachment to the transoms of boats comprise a platform section that includes horizontal planking and depending tubular frame members and a ladder step section pivoted on the tubular frame members below the planking for movement between a retracted position wherein the step is raised above the planking inboard of the rear end of the platform and an extended position wherein the step is lowered below and aft of the planking. The step is structured so as to limit the extent it will lower below the planking. The new ladder design enables the platform to be free of any elements, such as brackets, etc., and for the step to be aft of the boat's propeller, rudder, etc. When the step is in the extended position to eliminate possible snagging of gear worn by the ladder user or other interference to the user of the free use of the full area of the platform or of the ladder.
REFERENCES:
patent: 493373 (1893-03-01), Alexander
patent: 2197266 (1940-04-01), Fredell
patent: 2246985 (1941-06-01), Pellegrini
patent: 3195680 (1965-07-01), Thornburg
patent: 3627350 (1971-12-01), Cross
patent: 3774720 (1973-11-01), Hovey
Ritten Robert G.
Terry John L.
Machado R. P.
Palmer Carroll F.
Step-On Inc.
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