Abstract: An agitation device for agitating products held in wells of sample vessels or a laboratory microplate is disclosed. The device is arranged to retain a microplate and to agitate an agitation member comprising an array of agitation projections which enter the wells of the microplate. The agitating motion can be horizontal and damping means can be provided between an actuator and parts of the device to reduce overall vibrations. A related method of agitation of microplate or sample vessel contents is described. A novel arrangement for receiving a replaceable agitation member for the device is also disclosed.

Abstract: An agitation device for agitating products held in wells of sample vessels or a laboratory microplate is disclosed. The device is arranged to retain a microplate and to agitate an agitation member comprising an array of agitation projections which enter the wells of the microplate. The agitating motion can be horizontal and damping means can be provided between an actuator and parts of the device to reduce overall vibrations. A related method of agitation of microplate or sample vessel contents is described. A novel arrangement for receiving a replaceable agitation member for the device is also disclosed.

Abstract: An apparatus for monitoring game challenges is described which includes a microprocessor programmed to receive keypad input as to the identity of challengers making challenges and maintain such challenges in a chronological order sequence. A display is provided for visually displaying the identity of the challenger entitled to play in the next challenge match. A keypad is provided for entering the identity of challengers making challenges into the microprocessor. The keypad includes one key dedicated to calling the challenger entitled to play in the next challenge match. Upon the next challenger call key being pressed the system visually displays on the display the identity of the challenger entitled to play in the next challenge match. The keypad also includes one key dedicated to advancing the challenger sequence should the challenger entitled to play in the next challenge match not appear within a reasonable time of his identity being displayed.