Origin of evolute
Examples from the Web for evolute
These names are given to the curves because the end of a stretched thread unwound from the evolute will describe the involute.
By and by that flour-sack is going to evolute into an underskirt for me to wear under my dress when I go to school.The Story of Opal|Opal Whiteley
The evolute of a curve is the curve which is the envelope of all its normals or the locus of all its centres of curvature.
The locus of the centres of curvature, or envelope of the normals, of a curve is called the “evolute.”
The pleasing effect of the design at Seventh and Locust streets is largely due to appropriate use of the evolute spiral band.The Colonial Architecture of Philadelphia|Frank Cousins