Trip beam linkage

Details Trip beam linkage Trip beam linkage

1975-08-21

1977-10-18

Marlo, George J.

Earth working

Overload shifting

Against spring return device

172268, 172773, A01B 6100

Patent

active

040541770

ABSTRACT:
A trip beam linkage for moldboard plow or other earth working tools which trips to clear obstacles such as rocks and the like and uses a sturdy, compact and reliable folding tripping linkage which permits reliable, high clearance tripping using tension springs. The linkage lengths are selected to permit reliance on a high spring force for initial holding, which is more reliable than over center or near center trip linkages. The folding linkage is positioned so spring expansion is kept to a minimum during tripping. The linkage can be adjusted to permit aligning the earth working tool. The working position of the linkage is determined by an adjustable stop.

REFERENCES:
patent: 422543 (1890-03-01), Sattley
patent: 668717 (1901-02-01), Rowell et al.
patent: 839956 (1907-01-01), Reeves et al.
patent: 1319489 (1919-10-01), Robinson
patent: 2944613 (1960-07-01), Anderson
patent: 3084749 (1963-04-01), Anderson
patent: 3321027 (1967-05-01), Johnson et al.

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