The lengths of the links comply with the condition: A͞C>A͞B. The angles α and β of rotation of link 1 and link 2 about fixed axes A and B are related by the equation tan(β)=A͞Csin(α))/(A͞C*cos(α-A͞B)) The transmission ratio between links 1 and 2 equals i₁₂=(sin(α)/sin(β))(1/(cos(β-α)). Links 1 and 2 make complete revolutions about axes A and B.
$930$LG,4L$