Abstract: A tool for removing slag from a flame-cut edge of metal includes a downwardly facing cup containing a plurality of steel balls. Only a portion of each ball extends from the lower end of the cup. A radially outer wall of the cup slants from a first position at its upper end to a second radially outer position at its lower end. As a result, when the cup rotates, centrifugal force urges the balls downwardly with a force that is proportional to the speed of rotation. As the cup moves over slag, lateral impact from the balls remove the slag. Because the balls are not connected to surrounding structure, they are free to rapidly move upwardly in the cup in response to hitting the edge of the cut. Consequently neither the edge nor the surface of the metal is peened or otherwise marred or disfigured.

Abstract: A burrowing animal repellant apparatus transmits a physical vibration to the ground, by means of a percussive device and preferably responsive to ambient wind. The percussive device is responsive to low-velocity ambient wind and is enabled irrespective of wind direction. The apparatus can be produced in decorative shapes.

Abstract: A frame corner joining apparatus for joining two metal picture frame members at a predetermined angle to form a frame corner. The joining apparatus includes first and second legs disposed at the predetermined angle relative to each other, each leg receivable in a corresponding frame member channel. Each leg includes a fillet surface and a sloping surface, having a slot and a wedge piece with tab received in the slot. The wedge piece may be in two positions: an unlocked position in which the wedge piece is at the lowest point on the sloping surface, and a locked or raise position in which the top side of the wedge piece engages a surface of the picture frame. The wedge piece may be adjusted manually with needle nose pliers or automatically with a pneumatic device until the fillet surface of the frame corner joining apparatus tightly abuts the back lip edge of the picture frame member.

Abstract: A wall attached base includes locking members rotatable into overlying relationship with the flanges of a tubular metal frame to confine same adjacent the wall surface. Appendages on the base receive a tool for imparting rotation to the base for moving of the locking members into and out of frame locking positions. Portions of the base frictionally engage the frame to prevent undesired rotation of the base. The frictional portions of the base are yieldable ears formed on the locking members or, in the modified form of the invention, surfaces on the appendages of the base adapted for frictional engagement with the frame. Wall marking pins are provided for temporary installation within each base to precisely mark the wall for installation of screw means.

Abstract: A fillet for a use in holding a transparent sheet of glass or plastic spaced from artwork mounted in a picture frame. The fillet has a one-piece construction and is provided with a recess and a spacer portion. Preferably, the fillet has a generally S-shaped body defining two recesses of different widths with each recess being defined by an end wall and an intermediate wall, the intermediate wall being common to the two end walls. Each end wall is angled relative to the intermediate wall and the material of the fillet is resilient so that the end walls can yield away from the intermediate wall to accommodate glass or plastic sheets whose thicknesses are greater than the minimum widths of the recesses. The S-shaped fillet is reversible so that, in one position, it can receive a plastic glass sheet of a relatively small thickness in one of the recesses and, in the other position it can receive a glass or plastic sheet of relatively large thickness in the other recess.