Spring tooth harrow, and spring tooth and tooth clip for a harro

Details Spring tooth harrow, and spring tooth and tooth clip for a harro Spring tooth harrow, and spring tooth and tooth clip for a harro

1984-05-14

1986-05-20

Johnson, Richard J.

Earth working

Tool, standard or connection

Spring biased or formed tool or tool part

172643, 56400, A01B 2302

Patent

active

045894973

ABSTRACT:
A spring tooth harrow for land treatment has an improved spring tooth and an improved tooth attachment clip; the tooth has a tine, a helical coil spring, and a mounting lug having an inboard leg, a semi-circular medial leg and a straight outboard leg, the legs are co-planar and have a divergent angle between them; the clip is L-shaped and has a first leg with a rear shoulder and a fastener aperture and a second leg with a taper divergent towards the first leg; the clip second leg goes in between the lug inboard and outboard ends and biases the tooth into proper position, the second leg also absorbs a significant part of the lateral loads upon the tooth, and applies these loads directly to a structure of the harrow.

REFERENCES:
patent: 707624 (1902-08-01), Niles
patent: 2502769 (1950-04-01), Warnke
patent: 3049184 (1962-08-01), Lohrman
patent: 3150721 (1964-09-01), Van der Lely
patent: 3171243 (1965-03-01), Johnston
patent: 3710872 (1973-01-01), Kovar
patent: 3976145 (1976-08-01), Blair
patent: 4304306 (1981-12-01), Maust

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