Track closing attachment for a mobile ground irrigation tower

Details Track closing attachment for a mobile ground irrigation tower Track closing attachment for a mobile ground irrigation tower

1978-04-06

1980-06-24

Johnson, Richard J.

Earth working

Rolling, rotating or orbitally moving tool

With spring means other than for detent

172676, 239177, A01B 3700

Patent

active

042090687

ABSTRACT:
An attachment for a mobile ground irrigation tower including a pivotal arm which supports a pair of spaced downwardly biased disks that serve to close the track formed by the tower wheel in the ground. The horizontal spacing of the disks may be varied to accommodate tracks of different widths.

REFERENCES:
patent: 1062329 (1913-05-01), Gorham
patent: 1252658 (1918-01-01), Butler
patent: 1821048 (1931-09-01), Wright
patent: 1887348 (1932-11-01), Freeman
patent: 2319899 (1943-05-01), Silver
patent: 4059911 (1977-11-01), Bean

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