Fluid sprinkling – spraying – and diffusing – Container for non-fluid material – and scattering means – Rotating scatterer
Patent
1983-05-17
1985-12-31
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Container for non-fluid material, and scattering means
Rotating scatterer
222413, 239672, E01C 1920, A01C 1700
Patent
active
045615969
DESCRIPTION:
BRIEF SUMMARY
The present invention relates to an apparatus for spreading granular material, such as fertilizer, said apparatus comprising a carriage which is adapted to be driven or drawn across a field and on which there is mounted a vertical conveyer comprising a vertical cylindrical housing and a conveyer screw disposed therein, said vertical conveyer being adapted to convey material from a lower material space to an upper material spreader via a distributor, said cylindrical housing being non-rotatably mounted on the carriage, and the conveyer screw being rigidly connected at its upper end to the spreader.
Swedish patent specification No. 331,002 describes an apparatus which is of the above-mentioned type and which has a screw conveyer comprising a screw and a cylindrical housing, of which in any case the cylindrical housing, but in most cases also the screw is rotated to auger the material upwardly to the spreader which is disposed at the upper end of the apparatus and whose rotary part is rigidly connected to the rotary cylindrical housing and rotates together therewith. The screw conveyer itself is enclosed by a stationary outer tube which serves two purposes; on the one hand it serves as an attachment for the upper mounting location of the rotary parts and, on the other hand, it serves as a holder for a distributor comprised by the spreader. In view hereof, the construction according to this patent specification is complicated and also requires considerable maintenance, and when both the screw and the cylindrical housing are to be rotated, the driving mechanism therefor will be complicated and expensive.
Swedish patent specification No. 330,106 describes another known spreader having a stationary screw and a rotary cylindrical housing, at the upper end of which the spreader unit is mounted for rotation together with the cylindrical housing. However, this prior art construction suffers from the disadvantage that it lacks a separate distributor capable of providing the most advantageous spreading pattern for the material to be spread, such as fertilizer.
U.S. Pat. No. 2,758,842 describes a spreader which has a container into which extends, in a downward direction, a vertical conveyer whose conveyer screw is rigidly connected at its upper end to a rotary spreader for throwing out the granular material. This known apparatus suffers from several disadvantages in that it is unable to give a uniform distribution of the material to be spread, as seen at right angles to the travelling direction of the spreader, and also in that the infeed to the infeed end of the vertical conveyer is unsatisfactory.
The present invention has for its object to obviate the disadvantages of the prior art constructions. According to the invention, this object is achieved in that the screw is rigidly connected at its lower end to a rotary cup-shaped member of a material infeed device to the vertical conveyer, such that the rotary part of the infeed device, the screw and the spreader are rotated together, and that the distributor is adapted to control the flow of granular material from the vertical conveyor to the rotary spreader in such a way that the granular material will be approximately uniformly distributed within the contemplated spreading area after the carriage.
By designing the spreader in accordance with the present invention, considerable advantages are obtained in that all movable parts are driven by the same driving mechanism, and that the distributor can be designed as a replaceable distributor disk, the throughflow openings of which can be designed and spaced in such a manner that the spread granules are discharged more sparsely, as seen in the radial sense from the spreader, at the beginning and at the end of the angular area behind the carriage, within which area the granules are thrown out by the spreader. A further advantage is that no separate supporting means for the distributor disk are required, and that the distributor disk can be secured directly on the stationary cylindrical housing and formed in such a manner that
REFERENCES:
patent: 1107992 (1914-08-01), Parrish
patent: 2350476 (1943-07-01), Richey
patent: 2758842 (1956-08-01), Burroff
patent: 3041076 (1962-06-01), Van Der Lely et al.
patent: 3478970 (1969-11-01), Siwersson
patent: 3715119 (1970-05-01), Shelley et al.
Kristensson Kent B. G.
Siwersson Olle L.
Wall Arne E.
AB Scaniainventor
Flocks Karl W.
Kashnikow Andres
Neimark Sheridan
Starobin A. Fred
LandOfFree
Apparatus for spreading granular material does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus for spreading granular material, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for spreading granular material will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1020320