Combined clearer and feeder brush for a rotating sunflower seed sifter

Abstract From the Canadian patent

of Disclosure, The invention concerns a sifting procedure intended for treating materials difficult to sift, in which any one component of the material tends to become adherent to the surface of the sieve and a sifting apparatus for ap-, plying such a procedure. An example of said materials difficult to sift is the mixture consisting of sunflower seeds and of other kinds of inflorescence material accompanying them, which is produced in connection with harvesting these seeds. The adhesion problem has been solved in the invention by using a brush roll (3) disposed against the surface of the sieve (2) in the manner, that the brush roll is rotated about its own axis (4) and at the same time, …