Patent
1975-07-21
1977-05-10
Blix, Trygve M.
214 17DB, B65G 6532, B65G 6538
Patent
active
040223353
ABSTRACT:
A reversible rotary sweep has a single railless trough-less contemporaneously reversible 16" OD horizontal long auger and a depending holeformer composed of a 191/2" OD depending short auger and a surrounding 21" ID concentric sleeve. In unloading, a substantial portion of the unloading stream of silage normally flows radially inward along opposite sides of a vertical "unloading plane", extending tangentially to the unloading side of the auger. The upper end portion of the depending sleeve presents a silage overflow edge, which extends slightly below the horizontal bottom tangential plane of the long auger. Horizontally, the overflow edge is long enough to extend from the inner side edge of the unloading stream through the unloading plane to the outer side edge of the stream. As a consequence, the discharging silage, on both sides of said unloading plane, is free to cascade into the sleeve in a free-flowing substantially unobstructed condition. In the preferred embodiment, this is accomplished by making the diameter of the sleeve correspondingly larger than the diameter of the long auger. The diameter of the depending auger is likewise increased to provide a peripheral speed greater than that of the long auger and thus insure the removal of unloading silage as fast as it is received. These increases in diameter not only promote smooth and efficient unloading and demote jamming and bridging but also simplify the auger drive mechanism because both augers can be driven at the same rotational speed. In other embodiments of this invention, a free unloading flow can be obtained by offsetting the long auger rearwardly, relative to the forward or advancing movement of the unloading sweep and auger. Operational improvement is further promoted, during unloading, by terminating the flighting of the long auger adjacent the overflow edge and, during filling, by extending the non-overflow portion of the sleeve upwardly to reduce the blowing of incoming silage back into the hole.
REFERENCES:
patent: 2719058 (1955-09-01), Van Dusen
patent: 3297177 (1967-01-01), Zeiter
patent: 3358856 (1967-12-01), Weibull
patent: 3438517 (1969-04-01), Steffen
patent: 3456818 (1969-07-01), Massey
patent: 3908839 (1975-09-01), Menaut
Blix Trygve M.
Clayton & Lambert Manufacturing Co.
Robert Arthur F.
Sotelo Jesus D.
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