Roulette (curve) in this case, the point lies on the circle then the roulette is a cycloid. A related concept is a glissette, the curve described by a point attached to a given curve as it slides along two (or more) given curves. Formally speaking, the curves must be differentiable curves in the Euclidean plane. The "fixed curve" is kept invariant; the "rolling curve" is subjected to a continuous congruence transformation such that at all times the curves are tangent at a point of contact that moves with the same speed when taken along either curve (another way to express this constraint
Little Matlock Rolling Mill its bearings and covered in vegetation and in need of renovation, it is the largest wheel of its type to survive in Sheffield. It has a diameter of 18ft 6in and a width of 11ft 8in with 8 cast-iron spokes to each side and 42 buckets. Above the wheel is a cast iron penstock now permanently closed. In the 1950s it was estimated that the wheel could generate 25 horse power using Volumetric flow rate data. Behind the wheel are a dam and mill race constructed to drive the wheel. Little Matlock Rolling Mill Little Matlock Rolling Mill also known