Blade assembly

Details Blade assembly Blade assembly

1980-12-12

1983-01-25

Johnson, Richard J.

Earth working

Mounting for pushed tool at end of motor vehicle

Transversely mounted blade

1727011, E02F 376

Patent

active

043698476

ABSTRACT:
An improved blade assembly is of the type that a blade length is made variable by sliding an auxiliary blade or blades along a main blade. Cutting edge portions of the main blade and the auxiliary blade are disposed in a back-to-back relation and the directions of the tapered surfaces of the respective edge portions are inclined upwardly and outwardly from opposite sides of the complementary sliding surfaces between the main and auxiliary blades so that the knife edges of the respective edge portions may be aligned substantially on the same straight line.

REFERENCES:
patent: 2218512 (1940-10-01), Ball
patent: 3316636 (1967-05-01), Raper
patent: 3646675 (1972-03-01), Wezel
patent: 3703210 (1972-11-01), Williams

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