Ships – Implements – Underwater cutting
Patent
1984-10-26
1986-02-18
Blix, Trygve M.
Ships
Implements
Underwater cutting
B63B 2112
Patent
active
045705640
ABSTRACT:
A rat guard for ships' hawsers. A barrier plate has a main open-end slot leading upwardly from its lower edge toward an arcuate hawser-engaging end near its center of gravity, and a through opening near its upper end. A pivot pin is near the upper end of the main slot. A freely swingable closure door has an upper end portion with a recess extending in from one side edge and an arcuate portion for engaging the hawser. This door has a closed slot receiving the pivot pin, so that the door is slidable relative to the plate and pin as well as being pivoted to the pin. The door has a first rope-anchor adjacent to its upper end. Either the door or the plate has a second rope anchor well below its upper end and near one side thereof. A first control rope extends through the through opening and is secured to the first rope-anchor; a second control rope is secured to the second rope-anchor.
REFERENCES:
patent: 1363406 (1920-12-01), Girard
patent: 1641345 (1927-09-01), Mead
patent: 2483874 (1949-10-01), Bernhard
patent: 2525234 (1950-10-01), Mucke
patent: 2950700 (1960-08-01), McBride
patent: 2959147 (1960-11-01), Reubenstine
patent: 3016034 (1962-01-01), Raistakka
patent: 3753416 (1973-08-01), Haglund et al.
patent: 3872818 (1975-03-01), Salvarezza
Avila Stephen P.
Blix Trygve M.
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