Support for line and weed cutter

Details Support for line and weed cutter Support for line and weed cutter

1990-12-07

1991-10-01

Swinehart, Ed

Marine propulsion

Screw propeller

Self-clearing

440 71, 416146R, B63H 512

Patent

active

050529579

ABSTRACT:
Apparatus shears foreign matter such as lines, wires, nets and weeds that can entangle and befoul propellers, propeller shafts, bearings and related structures of propeller-driven, water born vessels. The apparatus shears by cooperative action of a rotating blade that rotates in conjunction with the propeller and a non-rotating blade supported on a non-rotating portion of the vessel. The non-rotating blade is supported on a rope guard that encircles the shaft. A system for simplified installation and alignment includes an intermediate box that supports the non-rotating blade. This assembly is temporarily clamped to a rotating blade, with the box passing through an aperture in the rope guard. Then the box is welded to the rope guard at the aperture.

REFERENCES:
patent: 4447215 (1984-05-01), Govan
patent: 4722667 (1988-02-01), Rikhy et al.
patent: 4927213 (1990-05-01), Burgdore
patent: 4986612 (1991-01-01), Arikawa

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