DEVICE TO PLOT CURVES Russian patent published in 2011 - IPC B43L11/04 

FIELD: process engineering.

SUBSTANCE: invention relates to curve plotters. Proposed device represents a crosspiece with intersecting guide grooves rigidly fitted on two posts with one pair of opposed arms resting thereon with guide grooves directed downward. Note here that each arm of said crosspiece is scaled, common zero point of the arms being located at their intersection. Proposed device comprises also axial foot set on semi frame ledge to reset and lock it on over crosspiece arms, slave plate fitted on semi frame ledge to turn thereon. It comprises also horizontal bar with similar crosspiece rigidly fixed on horizontal bar with guide groove directed upward to get in contact with free ends of axial foot and slave plate.

EFFECT: higher accuracy of plotting cardioids and Pascal scroll, ellipse in whatever axonometries, conchoids of straight line, strophoids and cissoids.

10 dwg