Automatic gemstone orientation

Automatic gemstone orientation

A method and apparatus for orientating discrete objects, such as gemstones, is described. The method comprises providing the objects on a travelling path; providing a pair of opposed walls (38) extending generally along the direction of the path; and generating relative oscillatory movement (14) bet...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: POWELL, GRAHAM RALPH, D'GAMA, SIOBHAN, DAVIES, NICHOLAS MATTHEW, WILLIS, MAXWELL
Format: Patent
Sprache:eng
Schlagworte:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PERFORMING OPERATIONS
PHYSICS
POSTAL SORTING
SEPARATING SOLIDS FROM SOLIDS
SORTING
SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTEDPIECE-MEAL, e.g. BY PICKING
TESTING
TRANSPORTING
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Beschreibung
Zusammenfassung:A method and apparatus for orientating discrete objects, such as gemstones, is described. The method comprises providing the objects on a travelling path; providing a pair of opposed walls (38) extending generally along the direction of the path; and generating relative oscillatory movement (14) between the pair of walls (38) and the travelling path (in a direction generally transverse to the direction of the path), so that the pair of walls (38) imparts lateral force to the objects to thereby urge them into their most stable orientation as they progress along the path. A device for checking the orientation of the discrete objects is also described.