Agricultural tool shank and spring release

Details Agricultural tool shank and spring release Agricultural tool shank and spring release

1980-07-31

1983-08-23

Johnson, Richard J.

Earth working

Overload shifting

Resilient latch

172710, 172773, 172749, A01B 2302, A01B 6104

Patent

active

043998747

ABSTRACT:
A plough shank having a rounded leading edge portion with a leading surface, a trailing portion, a web connecting the trailing and leading portions, an attachment mechanism at the top of the shank to enable attachment of the shank to a plough frame so that the leading surface is inclined by 60.degree. to 80.degree. to the horizontal, and a construction at the bottom of the shank to enable the attaching of a digging point thereto. The attachment mechanism may comprise a lobe integral with the shank and received in a clamp for attachment to a tool bar. The clamp may include two pivotably connected portions with an interconnected spring or hydraulic system.

REFERENCES:
patent: 565352 (1896-08-01), Hickman
patent: 614177 (1898-11-01), McBride
patent: 1237610 (1917-08-01), Brenno
patent: 2093123 (1937-09-01), Davenport
patent: 2703518 (1955-03-01), Whitmore
patent: 3141508 (1964-07-01), McMullen
patent: 3202222 (1965-08-01), Norris
patent: 3398799 (1968-08-01), Richey
patent: 3912020 (1975-10-01), Rockwell
patent: 3931858 (1976-01-01), North
patent: 4079789 (1978-03-01), Byrd
SAE Standard Nomenclature-Rippers, Rooters, Scarifiers SAE j733b 7/73, p. 41.27.

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