Earth working – Scraper between widely spaced front and rear ground supports
Patent
1998-12-14
2000-02-08
Will, Thomas B.
Earth working
Scraper between widely spaced front and rear ground supports
172456, 172459, 172675, 1726845, 1727011, 172776, E02F 312
Patent
active
060218533
ABSTRACT:
A field finishing land plane has a V-shaped, horizontally oriented frame converging at a front end affixed pivotal to steerable rollers in a yoke fastened to a tow tongue. The pivotal front is housed in a protective shielding. A cross member that attaches to the wide section of the V frame at the rear of the land plane extends outward from the V ends on each side. The outward extensions have individual rollers attached to swivel at the outer ends. Supported by internal framing and operated hydraulically, pneumatic tired, retractable road wheels can be raised for field use of the land plane and lowered for on-road towing. For field use with the road wheels raised, the land plane of this invention rests on the front steerable rollers and on the rear swivel rollers so that a long crosswise scooping bucket located centrally under the main frame of the land plane makes ground contact. For road safety during towing with road wheels down, the long crosswise scooping bucket has rotatable end sections. The end sections attach pivotal to the frame of a fix center section of the bucket and can be rotated to a vertical position narrowing the wide center area of the road plane to an acceptable public road size. For further road safety, facing surfaces of butt hinges on the rear roller support sections can be unbolted allowing the roller support sections and rear rollers to be swung around towards the center of the rear frame member to narrow the rear of the land plane. The rear rollers when turned to the back are fixed in position by a safety line between them. Hydraulic cylinders operate the rotatable bucket sections and safety attachments maintain them positioned vertically.
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Atkins Ralph H.
Mammen Nathan
Will Thomas B.
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