Archimedes spiral

Archimedes spiral:

It is a plane curve generated by a point which moves uniformly around and towards or away from a fixed point called the “ pole “ or it is a locus of a point which moves away or towards from another fixed point at a uniform linear velocity and uniform angular velocity

When the point on the spiral moves through 360 degree, it is called on “convolution”

Practical application Scroll plate of lathe chucks, spring of clocks, watches, tooth profile of helical gears and cams etc.