INSTRUMENT FOR DRAWING OF CLOSED GRAPHS OF THE FOURTH

摘要

An instrument for drawing closed graphs of the fourth order contains a cam mechanism and a planar pusher. For mechanization of the drawing process of closed graphs of the fourth order and expansion ofthe range of drawing of curves of the fourth order it is equipped with a disk for fixing the drawing sheet, mounted on the shaft and fixed by means of mobile lever, on which the stylus is fixed.