Tillage discs

Details Tillage discs Tillage discs

1978-11-13

1981-01-27

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

Detachable rim for disk

172604, A01B 2306

Patent

active

042469716

ABSTRACT:
An agricultural tillage disc having a replaceable annular blade. The central hub of the disc consists of two sections clamped together so that the inner edge of the annular blade is securely held therebetween.

REFERENCES:
patent: 126655 (1872-05-01), Tuttle
patent: 442671 (1890-12-01), Tower
patent: 1663239 (1928-03-01), Bucknam
patent: 2271354 (1942-01-01), Strandland
patent: 2701996 (1955-02-01), Wiese
patent: 3451488 (1969-06-01), Taketa
patent: 3690385 (1972-09-01), Weiss
patent: 3877159 (1975-04-01), Boomstra

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