Boat boarding ladders

Fire escape – ladder – or scaffold – Wall- or floor-attached – Ladder

Patent

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Details

182 86, 182194, 182206, 114362, 280166, B63B 2920, E06C 504

Patent

active

047249250

ABSTRACT:
A boarding ladder which may be mounted on a topsides surface of a boat to be swingable between a raised position where all parts of the ladder are above the waterline of the boat and a lowered position where at least one step of the ladder extends below the waterline is formed of a step unit and a mount unit. The step unit has a pair of spaced apart tubular siderails carrying flat tread steps so as to permit the angle of their flat treads to be varied relative to the siderails. A tubular cross member extends across the top ends of the siderails. The mount unit has a pair of spaced apart, tubular sections rotatably carried on the cross member of the ladder unit and which extend normally thereof. Mounting members into which such tubular sections fit permit the ladders to be mounted on the topsides surface of a boat while supporting the ladder in a proper operating posture.

REFERENCES:
patent: 2755981 (1956-07-01), Edwards
patent: 3307654 (1967-03-01), Green
patent: 3390740 (1968-07-01), Brandel
patent: 3512608 (1970-05-01), Huntley
patent: 3774720 (1973-11-01), Hovey
patent: 3858683 (1975-01-01), Rachocki
patent: 3973646 (1976-08-01), Martinez
patent: 3991851 (1976-11-01), Gannon
patent: 4002223 (1977-01-01), Bernkrant
patent: 4086980 (1978-05-01), Shortes
patent: 4462485 (1984-07-01), Terry

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