Link 1 has the form of a double bent lever wi th right angles at points C and E, i.e. angles 0En and 0Cm equal 90°. Link 1 turns about fixed axis 0. Arm Cm of link 1 is connected by a sliding pair to slider 5; cross-piece En is connected by a sliding pair to slider 2. Slider 2 is connected by turning pair A to slider 3 which moves along fixed guides p-p whose axis coincides with axis 0x. Cross-piece t-t of link 3 is parallel to axis 0y and is connected by a sliding pair to slider 4. Sliders 4 and 5 are connected together by turning pair D. When link 1 turns about axis 0, point D of slider 4 describes an inclined-node curve wi h the equation (a²/x²)+(b²/y²)=1 where a=0͞E and b=E͞C are constant dimensions of the mechanism.
$1209$LG,Ge$