Patent ID: 7198752

Claim:
A drive system for an automatic stainer ( 10 ), the drive system comprising: a motor ( 16 ); a side wall assembly ( 40 ) for carrying specimens to be stained; and a first crank system ( 12 ) and a second crank system ( 14 ) each coupled to the side wall assembly ( 40 ) and connected to the motor ( 16 ), wherein each of the first and second crank systems ( 12 , 14 ) includes a rotatable mounted shaft ( 20 ) and a pair of levers ( 19 ) arranged one at each end of the shaft ( 20 ); wherein the motor ( 16 ) drives both the first and second crank systems ( 12 , 14 ) and the first and second crank systems ( 12 , 14 ) are each connected to the motor ( 16 ) by respective power transfer means for providing synchronized operation of the first and second crank systems ( 12 , 14 ).