Lawn mower blade rotation warning device

Details Lawn mower blade rotation warning device Lawn mower blade rotation warning device

1977-05-05

1979-05-08

Kinsey, Russell R.

Harvesters

Motorized harvester

With selective control of drive means

192 30W, A01D 6900, A01D 6908, A01D 6910

Patent

active

041528816

ABSTRACT:
A warning device for a lawn mower having a rotary blade driven from a motor through a centrifugal clutch and normally held stopped by a brake which is released by a deadman control. A clicker arm is pivoted to the clutch driver and spring-pressed toward engagement with the driven clutch drum so as to repeatedly strike a notch therein and sound a warning in the event the motor stops and thereby stops the driving clutch element while the brake is disengaged and allows the blade to spin from its own momentum. A centrifugal weight connected to the clicker arm retracts it when the clutch drive is operating normally.

REFERENCES:
patent: 2753029 (1956-07-01), Babian
patent: 2825776 (1958-03-01), Curtis
patent: 2985992 (1961-05-01), Dowdle
patent: 3253391 (1966-05-01), Meldahl
patent: 3756042 (1973-09-01), Heth et al.
patent: 3786776 (1974-01-01), Buthe
patent: 4035994 (1977-07-01), Hoff
patent: 4044533 (1977-08-01), Wick

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