Mulch loosening rake

Details Mulch loosening rake Mulch loosening rake

1979-10-29

1981-03-17

Hirsch, Paul J.

Earth working

Plural relatively movable tools

Plural tool groups relatively vertically movable because of...

56400, 172643, A01B 3100

Patent

active

042561850

ABSTRACT:
A mulch loosening rake consisting of a frame carrying a multiplicity of downwardly projecting spring teeth dragging the ground, said teeth being biased forwardly and downwardly but sprung rearwardly by forward motion of the frame, each tooth having a stop member intermediate its ends engageable with the frame after partial springing thereof to reduce its effective length to the portion between the stop and its free end, so as to increase its effective stiffness, and being so supported as to provide a pronounced downward movement thereof if allowed by ground contour to recover forwardly, so as to be enabled to follow the ground contour accurately.

REFERENCES:
patent: 711956 (1902-10-01), Furthmiller
patent: 835879 (1906-11-01), Bowman
patent: 2333586 (1943-11-01), Rude
patent: 3123154 (1964-03-01), Boyle
patent: 3765159 (1973-10-01), Neff

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