Ships – Life craft handling device – apparatus – or implement – Davit
Patent
1981-05-29
1983-08-02
Blix, Trygve M.
Ships
Life craft handling device, apparatus, or implement
Davit
403 81, 248160, 52115, 414 4, B63B 2310
Patent
active
043959679
ABSTRACT:
A support structure for devices particularly life boats and similar apparatus which is weight operated comprises a plurality of support members, each or some of which may be telescopic which are pivotally interconnected adjacent their associated interconnected ends. Each successive upper one of a pair of such members is pivotal relative to the next adjacent lowermost one about a substantially horizontal axis. The pivoting is controlled by a control mechanism which is operated from a fluid pressure source produced by the weight of the elements upon each other. The control mechanism includes means for controlling the amount of tilt of each upper element relative to an adjacent lower element and for the control of the precise angularity of the two elements relative to each other during the pivotal movement. The construction is such that a life boat may be supported in either a lower or an elevated position on a large ship and the individual support members may be articulated relative to each other so as to pivot the boat outwardly away from the vessel or ship in any manner which is desired. Thus if the ship is on an even keel some of the support members may be held without pivoting and merely one or two of them pivoted to lower the boat to a position in which it contacts the water line. In those cases in which it is desired that the boat be swung outwardly a large amount away from the vessel before it is pivoted downwardly then only the lowermost two elements are pivoted relative to each other, for example. The feature of the construction is that the weight of the life boat itself will cause operation of the controls for the pivoting and for the control of the positioning of each element relative to each other during the proper lowering of the boat into the water.
REFERENCES:
patent: 1455159 (1923-05-01), Wright
patent: 1746109 (1930-02-01), Edwards
patent: 2385841 (1945-10-01), Pampinella
patent: 2473557 (1949-06-01), Woodruff
patent: 3092856 (1963-06-01), Wallace et al.
patent: 4139110 (1979-02-01), Roberts
patent: 4271553 (1981-06-01), Korsvik
McGlew John J.
McGlew, Jr. John J.
Blix Trygve M.
Brahan Thomas J.
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