Abstract: A brush is rigidly attached to one end of a housing having a handle at the other end and, between the ends, a cylindrical opening supporting a rotor whose center of mass is displaced laterally from the axis of rotation. As the rotor turns, it exerts an unbalanced centrifugal force on the housing, causing it to oscillate. The rotor is preferably a single metal roller gyrating or rotating about the axis of the cylindrical opening, and it may be rotated by a tangential stream of fluid, e.g., water at utility district pressure. The rotor body may be solid or a hollow member filled with a heavy liquid such as mercury, and it is so supported that during rotation its outer peripheral surface approaches but does not touch the borewall of the opening in which it operates.

Abstract: A tie clasp shaped generally like a safety pin and having a shirt link attached to its fixed back member. The novelty lies in so proportioning the clasp that it can be used to receive either the back pendant portion or both pendant portions of a four-in-hand necktie. When used only to receive the back pendant, the clasp is preferably made long enough to receive the usually relatively narrow rear pendant but not so long that it extends to either side of the usually rather broad front pendant, thus making the clasp invisible to an observer facing the wearer. Also when so used, the tie clasp has a forward member with a pointed free end, this member being movable between a closed position and an open position, and while open it is thrust into and then out of the rear fold of the front pendant without going completely through the thickness of the tie, thus securing both pendants while at the same time remaining invisible.