Rotary earth crumbling implement

Details Rotary earth crumbling implement Rotary earth crumbling implement

1979-12-27

1982-01-26

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

Tool has circumferentially spaced teeth, tines, blades or...

301 74, A01B 2700

Patent

active

043124100

ABSTRACT:
In a rotary earth crumbler having a central shaft (1) with mounting discs (2) fast thereon and an annular series of U-shaped resilient stirrups (3), the leg portions of these stirrups are formed with an outwardly convex curved section (12) which extends into a fixing slot (11) in the mounting disc and is then locked therein by deformation of parts of the slot borders below the mid portion of the curved section, thereby narrowing said slot. The locking may easily be released when needed, viz. by bringing the slot borders back to the original shape.

REFERENCES:
patent: 324952 (1885-08-01), Mustard
patent: 876334 (1908-01-01), Cooper
patent: 1244982 (1917-10-01), Horst
patent: 2559232 (1951-07-01), Simon
patent: 2909888 (1959-10-01), Lely
patent: 4043400 (1977-08-01), Lely

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