Tensioning means for sifter

Details Tensioning means for sifter Tensioning means for sifter

1976-01-16

1978-06-20

Halper, Robert

Classifying, separating, and assorting solids

Sifting

Elements

209408, 209355, 210473, B07B 149

Patent

active

040960587

ABSTRACT:
A sifter comprising an upper part and a lower part which are engaged one into the other, the lower part fixedly carrying the gauze of the sifter, characterized in that the lower part is in one piece, being formed by a central portion having a U-shaped cross-section and receiving the edge of the gauze, said central portion being terminated by two cylindrical or conical portions. The lower end of the upper part, bears against the gauze to hold it in a tensioned condition.

REFERENCES:
patent: 65406 (1867-06-01), Ludlow
patent: 134455 (1872-12-01), Bingham
patent: 153220 (1874-11-01), Porter
patent: 205210 (1878-06-01), Richardson
patent: 565890 (1896-08-01), Fowler
patent: 605175 (1898-06-01), Buchtel
patent: 1416145 (1922-05-01), Werner
patent: 1519421 (1924-12-01), Stubbs
patent: 1593312 (1926-07-01), Shappell
patent: 2197435 (1940-04-01), Niemyer
patent: 2511357 (1950-06-01), Marty
patent: 2674375 (1954-04-01), Clay
patent: 3029946 (1962-04-01), Wright
patent: 3386580 (1968-06-01), Grabarczyk
patent: 3928189 (1975-12-01), Lower

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