Earth working – Tool – standard or connection – Subsoilers
Patent
1996-08-27
1997-12-09
Melius, Terry Lee
Earth working
Tool, standard or connection
Subsoilers
172271, 172166, A01B 1308
Patent
active
056950128
ABSTRACT:
A deep subsoiler (50) consists of a plurality of carriages (58) abreast on a frame (52) and a plurality of shanks (60) mounted on each of said carriages. The mounting for each of said shanks provides a fail-safe mechanism consisting of a pair of rosettes (72) with shear-bolts (86). Said rosettes enable the operator to minutely set an angle of attack for each shank tip (P37). Said carriages align parallel with a direction of travel. Each shank on the carriage functions at an increasing depth which provides a staged sequence with a shortest shank (60c) in a forward position. Theory and tests indicate a draft reduction using staged shanks. Said tips for these shanks produce larger voids in the subsoil and increase the flow of subsoil to the surface. Staged shank standards (P40) cut narrower grooves in the surface that inhibit rivulets. The larger voids hold more water and organic material and this material adheres better to the surface. The operator reduces draft further by monitoring tire load and adjusting angle of attack to prevent excessive slippage or draw-down on rear tractor wheels or gauge wheels. The structure also provides for shank spacing and adapts to prior art tip exchange.
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Melius Terry Lee
Pezzuto Robert
Technical and Craft Services, Inc.
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