Rotary-plate appts. for collection or distribution of liq. samples

摘要

The moving part is a circular horizontal plate (7) with polyethylene cups (11) fitted into holes (10) arranged in a spiral groove (12). The fixed part has a framework of two horizontal square PVC boards spaced apart by four pillars and carrying, in addn. to the plate, a rail (15) extending across it for guidance of a carriage (17).Liq. delivered by tube (21) is distributed by an electrically operated valve (22) to a curved capillary positioned above a selected cup. The latter is detected by a photoelectric cell on the carriage.