The mechanism is based on a tangent generator consisting of links 1, 2, 3 and 4. Added to this linkage is a double guiding element consisting of two sliders, 5 and 6, connected together by turning pair E. T he mechanism is intended for tracing body and space centrodes of links 2 and 4. The tracing stylus is at the centre of pivot E. The mechanism is shown set up for tracing space centrode Cs. To trace body centrode Cb, slider 2 is secured to the fixed plane and link 4 is released. Centrodes of various shapes can be obtained by adjusting pivot A along slot F of link 4.
$1247$LG,Ge$