Abstract: An improved magnetic hot or cold pack is provided having a water absorbent filler such as polyacrylamide and having at least one magnet and an accessory strap that allows the application of heat therapy, cold therapy, magnetic therapy or heat with magnet therapy or cold with magnet therapy. Also provided is a method of preparing a magnetic hot and cold therapy pack having a water absorbent filler such as polyacrylamide and at least one magnet and an accessory strap.

Abstract: Aluminum automobile wheels are straightened by exerting gentle pressure on the wheel to urge the wheel back to its original shape. If the metal does not move under pressure, the wheel is heated, and pressure again exerted, the process continuing until the wheel becomes round. A C-shaped wheel mount carries a spindle which mounts a hub. The hub rigidly receives the wheel, and the hub is selectively rotatable, and the wheel mount is selectively rotatable about a horizontal axis. The wheel is gently brought back to shape without excess heat or excess working to damage the metal. A final metal spinning step relieves stresses in the metal and brings the wheel to final tolerances.

Abstract: A nestable plastic trash container having integrally bonded upper and lower plastic lifter bar members for automated dumping operation by conventional semi-automatic dumping apparatus is fabricated by initially preforming the lifter bar members by blow molding, inserting the preformed lifter bar members into respective recesses in another blow mold apparatus for forming the main body of the container, and then blow molding the main container body while simultaneously bonding it to the preformed lifter bar members. The insert-receiving recesses of the container body blow mold apparatus and the preformed lifter bar members respectively have compatible end-to-end convex arcuate surfaces which abut in sealing relation during the blow molding of the container body to prevent escape of the plastic material into the insert-receiving recesses.

Abstract: A bundle of articles having at least one small dimension are cut in succession. Tension is developed on the top article of the bundle. Heat is applied rapidly to a seam of the top article to be cut. The separated parts of a top article are withdrawn from the path of the beam and the next article is exposed to the heat.