Svenska Sockerfabriks Ab

Nils B Glifberg

Alf H Andersson

Wilhelm Bengtsson

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. The speed of the holding-down mat can be varied independently of the rotation of the cleaning rolls to adjust the transit time of the sugar-beets in the cleaning unit according to the amount of soil and stones carried along. The object of these steps is to make the cleaning pins, in cooperation with the holding-down mat, clean the sugar-beets in a gentle manner without causing damage.

Arrangement in root-crop harvesting machines

A machine for harvesting the overground foliage of a row crop growing in a field. The machine has a plurality of stripping wheels each for harvesting and disintegrating the foliage in one row of the crop. Each stripping wheel is arranged in a casing having an obliquely upwardly directed outlet, and produces an air stream for transporting the disintegrated foliage up through the outlet of the casing. In order to attain great cutting efficiency per time unit and keep the harvested material as clean as possible, the machine has a collecting channel connected at one end to an ejector pipe. The collecting channel extends above the stripping wheel casings which are arranged in a row one beside the other and whose outlets extend obliquely upwards in the same direction towards the ejector pipe and open at intervals one after the other into a lower portion of the collecting channel. Besides, the lower portion of the collecting channel is at that side of each outlet of the wheel casing that faces the ejector pipe, provided with nozzles for injecting additional air into the collecting channel substantially in the direction of the ejector pipe end of the collecting channel.

Growing community of inventors

Staffanstorp, Sweden

Nils B Glifberg