Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly
Patent
1974-09-18
1976-06-01
Apley, Richard J.
Earth working
Plural wheeled implements
Outrigged implement adjustable inwardly
172456, 280411A, A01B 7300
Patent
active
039602214
ABSTRACT:
An earth tillage apparatus has a hydraulically liftable, foldable carriage with sections which extend laterally from a tongue to a wide field working position and are foldable to a narrow transport or storage position. Rigid structural arms are hingedly mounted on the tongue and have free ends extending laterally a substantial distance therefrom. In a preferred embodiment, cables respectively have one end secured to the tongue and the other end secured to the wings and extend through a pulley mounted on each of the arm free ends for the purpose of positioning the point of pull a substantial distance laterally of the tongue thereby reducing the tendency for inwardly buckling the carriage. The arms are locked in their laterally extending position when the wings are in the wide field position and are selectively released to hingedly move to a second or transport position when the wings are folded. The arms and cables are arranged relative to the tongue and carriage to maintain cable tension and prevent dragging thereof.
REFERENCES:
patent: 2966219 (1960-12-01), French
patent: 3003789 (1961-10-01), Calkins
patent: 3481408 (1969-12-01), Twidale
patent: 3539016 (1970-11-01), Bauer et al.
patent: 3542138 (1970-11-01), Fackler et al.
patent: 3810660 (1974-05-01), Peterson
patent: 3811516 (1974-05-01), Thompson et al.
Blair Calvin B.
Blair John W.
Apley Richard J.
Stouffer Richard T.
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