Lawn mower blade mounting

Harvesters – Cutting – Cutter members

Patent

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Details

A01D 5518

Patent

active

041143540

ABSTRACT:
Disclosed herein is a lawn mower comprising a blade housing, a member adapted for rotation within the blade housing and having a peripheral edge, a blade movably secured to the member for movement between a retracted position wherein the blade is positioned inwardly of the peripheral edge, and an extended position wherein the blade extends outwardly beyond the peripheral edge, and a spring for biasing the blade to the retracted position in the absence of rotation of the member above a predetermined speed.

REFERENCES:
patent: 3738092 (1973-06-01), Spear
patent: 3998034 (1976-12-01), Rubin

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