FIELD: sifting equipment . SUBSTANCE: sieve has frame with sifting surface defined by strings provided with extension springs which are attached on frame by end members. Sieve is further provided with stretching device and string fastening device. Extension springs are covered with flexible material and provided with alternating projections on coils, so that bulk material sifting cells are defined between adjacent string and two projections. Sieve of such construction is adapted for sorting out solid materials and may be used in different branches of industry. EFFECT: simplified construction and increased efficiency. 3 dwg
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