Link 1 is connected by turning pair A to the fixed link and by screw pair B to link 2 which, in turn, is connected by screw pair C to the fixed link. When link 1 is turned through the angle ϕ₁, the displacement of link 2 along axis x-x is s₂=-((h_B*H_C)/(H_C-H_B))(ϕ₁/(2π)) where h_B and h_C are the pitches of the threads in screw pairs B and C. These pitches are taken with a plus sign for right-hand thread and with a minus sign for left-hand thread.
$2204$LS,3L$