Method of and apparatus for transferring material from a bulk medium

A method for depositing material on a surface from a chamber, the chamber having a transfer station at which the material can be discharged from an outlet, the surface on which the material is deposited being proximate to the opening, the method comprising the steps of:

• supplying a bulk medium to the chamber, the bulk medium comprising a dispersed, insoluble material in a support medium;
• subjecting the dispersed, insoluble material in the bulk medium to a force to effect a movement of the insoluble material within the bulk medium to displace the dispersed, insoluble material relative to the support medium and toward a transfer location within the transfer station to concentrate the insoluble material at the transfer location;
• discharging the insoluble material from the concentration at the transfer location through the outlet and depositing the discharged material onto the surface, and
• thereafter effecting continued movement of the insoluble material within the bulk medium toward the transfer location to maintain the concentration of insoluble material at the transfer location as the material is discharged from the outlet.