Load hoisting assembly particularly for boats

Details Load hoisting assembly particularly for boats Load hoisting assembly particularly for boats

1988-11-25

1989-11-14

Spar, Robert J.

Material or article handling

Marine loading or unloading system

Marine vessel to marine vessel

4141428, 212190, 114343, 294 6733, B63B 2718

Patent

active

048803456

ABSTRACT:
Disclosed is a load-hoisting assembly for mounting on a pair of horizontal rails spaced apart a predetermined vertical distance. The assembly comprises an upright post having a jib at its upper end provided with a hoisting device. The assembly also comprises an upper rail-engageable member to be secured to the upper one of the rails and a lower rail-engageable member to be secured to the lower rail. A connection structure is provided to join the two rail-engageable members to the post. This connection structure is so constructed as to allow relative displacement of the two members to suit the particular distance between the two rails.

REFERENCES:
patent: 2892555 (1959-06-01), Hooker
patent: 3077613 (1963-02-01), Mayer
patent: 3943585 (1976-03-01), Leral
patent: 4362119 (1982-12-01), Thimander
patent: 4526126 (1985-07-01), Dunn

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