Abstract: A conveying and separating device for root crop has a separating stretch with at least two rotatingly driven separating rollers, wherein the separating stretch receives a harvested material of root crop and admixed parts and wherein the at least two separating rollers transport on a topside of the separating stretch primarily the root crop while the admixed parts are removed in a screening phase through a screening gap between the at least two separating rollers. By a direct forced cleaning action, the at least two separating rollers are kept free at least of admixed parts that can adhere to the at least two separating rollers.

Abstract: A light deflection element has a pair of transparent substrates 2, 3; a chiral smectic C phase liquid crystal 5 with a homeotropic alignment filled between the pair of transparent substrates 2, 3; and at least an electric field applying device 6 for activating an electric field in the liquid crystal 5. Because a chiral smectic C phase liquid crystal is used, the problems of the conventional light deflection element, such as high cost, light loss, large size, and optical noise etc. due to its complicated structure, can be greatly improved. The conventional low response time due to the smectic A phase or the nematic liquid crystal is improved, thereby the high-speed response is possible.

Abstract: A crop cleaner comprising a generally parallel array of first and second rollers each first roller being scrolled and each second roller generally unscrolled, the first rollers alternating with second rollers with pairs of adjacent rollers being carried on frames with each frame being displaceable relative to an adjacent frame and a drive for independently rotating each pair of rollers.

Abstract: A root crop harvester comprising a soil-separating primary web arranged to discharge material on to a crop-conveying second web which passes about two rollers adapted to define in the load-bearing run of the second web an overhanging step section.

Abstract: During the first pass across a field of row-planted sugar or red beets, the apparatus digs the beets from a specific number of rows (six being illustrated but the apparatus herein disclosed can be structured for four or five rows as well), elevates the beets at one side of the apparatus to a given height and discharges the elevated beets into a tank from which they are periodically re-elevated and discharged into a truck at the side of the apparatus opposite the side at which they are elevated and re-elevated, the truck trailing the apparatus over rows from which beets have been removed when not receiving re-elevated beets. On the next pass in a reverse direction across the field, the truck runs in the swath where the beets have been removed during the first pass, and the beets during the second pass are continually discharged into the truck without resort to storage and without re-elevating the beets as done on the first pass.

Abstract: A machine for harvesting sugar-beets growing in rows in the soil is provided with a unit for loosening and lifting the sugar-beets, a cleaning unit for cleaning the sugar-beets from soil and stones, and an elevator for transferring the sugar-beets from the cleaning unit to an unloading conveyor positioned at a higher level than said cleaning unit and serving to unload the sugar-beets. The cleaning unit has a number of cleaning rolls having a core on which cleaning pins made of rubber or like material and projecting on either side are mounted, said cleaning pins having a flexural strength such that they do not damage the sides of the root-crops. Furthermore, the cleaning pins are so mounted on the associated cleaning roll that they are equally flexible in all directions. The cleaning unit also has an endless holding-down mat travelling around guide pulleys, the lower part of said holding-down mat exerting a load on the sugar-beets against the cleaning pins.

Abstract: A mobile machine for uprooting vegetation from the ground and for separating soil attached to the uprooted vegetation is disclosed. The machine includes a frame and an uprooting mechanism for uprooting and removing vegetation from the ground, the uprooting mechanism being rotatably supported by the frame and driven by a source of power. A soil separating mechanism is driven by the source of power for separating the soil from the uprooted vegetation and for conveying the uprooted vegetation away from the ground at an acute angle relative the ground, the soil separating mechanism being rotatably supported by the frame. The soil separating mechanism includes a first and a second end, the first end being disposed adjacent the uprooting mechanism, the first end receiving thereon the uprooted vegetation and attached soil removed from the ground by the uprooting mechanism.

Abstract: A crop gathering attachment for a crop harvesting machine is disclosed wherein a feeder mechanism is disposed between the cutterbar and the consolidating auger. The feeder mechanism includes a plurality of transversely mounted rotary members having crop conveying members in the form of helical flanges radially affixed thereto and rotatable therewith. The rotary members are mounted such that the crop conveying members on each of the rotary members interleave with the crop conveying members of the adjacent rotary members. The rotary members are rotated in the same direction so that the crop conveying members constitute in effect a moving floor operable to transfer crop from the cutterbar generally longitudinally of the attachment to the consolidating auger for feeding to the crop harvesting machine for further harvesting treatment.

Abstract: A potato harvester comprises a double disc share feeding potatoes to a vibrating upwardly-moving conveyor sieve 1 (FIG. 1), the operational area of which is determined by the relative positions of rollers 2 and 4. This area can be changed to deal with different soil conditions, any slack or excess amount of conveyor 1 resulting from this change being accommodated by an appropriate repositioning of the pulleys 4, 5.

Abstract: Disclosed is a potato harvesting apparatus for removing practically all the dirt from harvested potatoes without bruising or damaging them. The apparatus has disk coulters that cut potato vines between rows, three each of primary, secondary and rubber-coated cylindrical cages arranged in order for harvesting material flow of the potatoes with the cages rotating at the same material-flow speed, a share that digs up the potatoes for pick up and transfer by the first primary cage, a cylinder raker to pick up and move excess vines, dirt and potatoes onto the second primary cage, shaker-tine assemblies that remove dirt and separate vines from the potatoes, a grinder suction fan that sucks up and deposits chopped up vines in the harvesting track where same are covered by dirt sifting down and through the cages that remove most of the dirt and break up the dirt clods.