Link 1 (screw) is connected by turning pair A to the fixed link (housing) and by screw pair B to link 2 (tailstock spindle). Link 2 is connected by sliding pair C to the fixed link. Slot b of link 2 slides along fixed key c. When screw 1 is rotated, centre a and tailstock spindle 2 are advanced or retracted along axis x-x.
$2279$LS,FD$