Abstract: A ball transfer assembly includes a steel ball that rotates within a housing having a collar for centering the ball within the housing and a removable plug that forms a seat for the ball and retains the ball and collar within the housing. The plug has a snap lock arrangement with the housing that permits it to be removable allowing the assembly to be taken apart and cleaned. A gasket also aids in preventing the accumulation of dust and wood fibers within the housing. A series of ball transfer assemblies may be aligned in an extruded metal rail to form a long beam with equally spaced in-line ball supports each capable of 360.degree. movement. This ball rail can be set adjacent a table saw, moulder, shaper, or band saw to provide control over the movement of sheet material being cut or moved.

Abstract: A ball transfer assembly includes a steel ball that rotates within a housing having a collar for centering the ball within the housing and a removable plug that forms a seat for the ball and retains the ball and collar within the housing. The plug has a snap lock arrangement with the housing that permits it to be removable allowing the assembly to be taken apart and cleaned. A gasket also aids in preventing the accumulation of dust and wood fibers within the housing. A series of ball transfer assemblies may be aligned in an extruded metal rail to form a long beam with equally spaced in-line ball supports each capable of 360.degree. movement. This ball rail can be set adjacent a table saw. moulder, shaper, or band saw to provide control over the movement of sheet material being cut or moved.

Abstract: An inexpensive, disposable seed germinator especially adapted for viewing seed growth comprises a unitary body formed by sealing two sheets of plastic material, at least one of which is transparent, to form an enlarged germination chamber, a relatively thin plant nutrient chamber, a water reservoir chamber and channels connecting the water reservoir to the nutrient chamber and the germination chamber. The germinator may be supplied with or without seeds and/or plant nutrients depending upon its intended use.