Soil sieve and grading device

Soil sieve and grading device

A soil sieve and grading device comprises an upstream and a downstream rotatable member (1, 2). The downstream rotatable member (2) comprises a plurality of axially-spaced starwheels (3) having angularly-spaced resilient fingers (9, 9'). The relative spacing of the rotatable members is adjustab...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: TIMOTHY NEEDHAM, DAVID WESTON
Format: Patent
Sprache:eng
Schlagworte:
AGRICULTURE
ANIMAL HUSBANDRY
FISHING
FORESTRY
HARVESTING
HUMAN NECESSITIES
HUNTING
MOWING
OTHER SEPARATING BY DRY METHODS APPLICABLE TO BULK MATERIAL,e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
PERFORMING OPERATIONS
SEPARATING SOLIDS FROM SOLIDS
SEPERATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, ORSIFTING OR BY USING GAS CURRENTS
SORTING
TRANSPORTING
TRAPPING
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Beschreibung
Zusammenfassung:A soil sieve and grading device comprises an upstream and a downstream rotatable member (1, 2). The downstream rotatable member (2) comprises a plurality of axially-spaced starwheels (3) having angularly-spaced resilient fingers (9, 9'). The relative spacing of the rotatable members is adjustable between a first end position in which the ends of the fingers (9, 9') of the starwheels of the downstream rotatable member lie adjacent the upstream rotatable member (1) for fine sieving and a second end position in which the ends of the fingers of the starwheels of the downstream rotatable member are spaced from the upstream rotatable member for maximum grading.