Line cutter for marine propellers

Details Line cutter for marine propellers Line cutter for marine propellers

1989-12-04

1990-09-04

Basinger, Sherman

Marine propulsion

Screw propeller

Self-clearing

83929, 416146R, B63H 128

Patent

active

049541080

ABSTRACT:
Apparatus shears foreign matter such as lines, wires, nets and weeds that can entangle and befoul propellers, propeller shafts, bearings and the like of propeller-driven water born vessels. The apparatus shears by cooperative shearing action of rotating blades that rotate in conjunction with the propeller and a non-rotating blade mounted on a non-rotating portion of the vessel. The non-rotating blade is pivotally mounted in a rigid blade holder. A wedge and V-shaped valley mechanism operating between holder and non-rotating blade forces the non-rotating blade toward the rotating blade as the blade pivots when foreign matter is being sheared to overcome forces tending to spread the blades apart. The apparatus is intended for operation in situations where there is negligible axial movement of the shaft.

REFERENCES:
patent: 726180 (1903-04-01), Miller
patent: 1813540 (1931-07-01), Laska
patent: 4447215 (1984-05-01), Govan
patent: 4507091 (1985-03-01), Govan
patent: 4544363 (1985-10-01), Govan
patent: 4801281 (1989-01-01), Govan
Stripper.TM. Brochure Ambassador Marine Ltd. "Patented Worldwide".

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