Abstract: A compact rotary drum colour separation scanner includes a drum which is rotatably mounted about an upwardly extending axis which is preferably slightly inclined to the vertical. A part of the carriage carrying either a light source or reading head travels into the drum through the hub upon which the drum is mounted.

Abstract: A dispenser for dispensing flat objects, particularly susceptibility or sensitivity test discs (38), from a stack of similar objects housed in a cartridge (22) comprises a body portion (10); a plurality of receptacles (20) within the body portion, each receptacle being adapted to receive a respective object-containing cartridge; a plurality of dispensing ports (32), one associated with each receptacle; a plurality of tamping pins (50), one associated with each dispensing port, for tamping an object through the associated dispensing port; a transport plate arranged for rotary motion to transport an object from each cartridge in a receptacle to a dispensing position in alignment with the associated tamping pin and dispensing port; and a retaining plate (44) fixed with respect to the receptacles, for retaining the objects in position during transport from a cartridge to the associated dispensing position.