Two-way scraper for ground tillage discs

Details Two-way scraper for ground tillage discs Two-way scraper for ground tillage discs

1977-01-12

1978-09-12

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

With disk cleaning means

A01B 2306

Patent

active

041130308

ABSTRACT:
This invention relates to a two-way disc scraper for attachment to a ground tillage implement frame and, more specifically, to an improved pendulum type mounting therefor characterized by a supporting arm pivotally attached to a mounting bracket for side-to-side swingable movement between two operative positions on opposite sides of center and a biasing mechanism yieldably maintaining the arm in either of its operative positions comprising a tension spring connected between a crank movable with the support arm and a flop-over link.

REFERENCES:
patent: 1534489 (1925-04-01), Barnes
patent: 3045765 (1962-07-01), Cox
patent: 3833067 (1974-09-01), Peterson
patent: 4008770 (1977-02-01), Boone

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