Linkage for an excavating tooth

Details Linkage for an excavating tooth Linkage for an excavating tooth

1977-03-31

1978-08-01

Crowder, Clifford D.

Excavating

Snow or ice removing or grooming by portable device

Railway clearer

172484, 172699, 280460A, 280461A, A01B 1308, E02F 518

Patent

active

041034430

ABSTRACT:
Drainage machine apparatus having a structure and a working equipment comprising a ground-engaging tooth mounted on a support and a system of arms connecting the support to the structure. The system of arms comprises first, second and third arms forming with the support a quadrilateral with the articulation of the first arm to the support, to the second arm and to the structure, the second arm to the third arm and the third arm to the support by inter-articulated fourth and fifth arms. The fourth arm is articulated to the third arm, the fifth arm to the structure and by a hydraulic jack coupled to the third and fourth arms.

REFERENCES:
patent: 2822738 (1958-02-01), Smith
patent: 2924285 (1960-02-01), Du Shane et al.
patent: 3870106 (1975-03-01), Gosling et al.

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