Rynd

A Rynd (also Rind or millrynd) is a cross-shaped iron support for the runner stone in a pair of millstones. The rynd is affixed to the top of the main shaft or spindle and supports the entire weight of the moving stone (which can be as much as several tons). The rynd is necessary because, unlike a cart wheel on an axle, the hole in the center of the stone must remain open enough for grain to pass through and thus fall between the grinding faces of the stones.

The face of a runner stone is distinctive for the presence of a so-called "Spanish cross" which is the carved impression in the stone into which the Rynde is slotted.

In Heraldry

A Millrynd, also called a Fer de Moline, is a relatively common heraldic device. It can be found in the arms of Sir William Saunsum as: Or, a Fer de Moline Sable (a gold shield with a millrynd in black). The millrynd of heraldry is only slightly stylized in form as shown at right.