Abstract: A lighting fixture for use in an environment which requires protection from EMI/RFI emissions. The fixture comprises a body forming a light-emitting opening, lighting components including at least one lamp in the body, a lens covering the opening, and a conductive grid across the opening, the grid being separate from the lens, electrically connected to the body, and positioned between the lighting components and the opening.

Abstract: A lighting fixture for use in an environment which requires protection from EMI/RFI emissions. The fixture comprises a body forming a light-emitting opening, lighting components including at least one lamp in the body, a lens covering the opening, and a conductive grid across the opening, the grid being separate from the lens, electrically connected to the body, and positioned between the lighting components and the opening.

Abstract: A lighting fixture comprising for use in an environment which requires protection from EMI/RFI emissions. The fixture comprises a body forming a light-emitting opening, lighting components including at least one lamp in the body, a lens covering the opening, and a conductive grid across the opening, the grid being separate from the lens, electrically connected to the body, and positioned between the lighting components and the opening. The grid is a conductive screen which covers the entire opening between the component area of the fixture and the light-emitting opening area of the fixture, thereby encasing the lamps in metal which prevents EMI and RFI from escaping outside the fixture.

Abstract: Inaccuracies in rail alignment in a billiard table are eliminated and the process of installing rails on a billiard table simplified with a rail assembly for a billiard table that includes first and second elongated rails (10, 44) which are adapted to be mounted on the upper surface of a bed (68) of a billiard table with each having an inwardly directed resilient nose (12, 46) defining a cushion. The rails (10, 44) are arranged in end-to-end relation and define an angle of 90.degree. with innermost parts (16, 42) of adjacent ends of each rail (10, 44) being at an angle of 45.degree. to the direction of elongation of the associated rail (10, 44) and generally parallel with each other and with outermost parts (14, 50) of the adjacent ends defining two sides of an outwardly opening V-shaped notch. A Y-shaped mitre (20) is sandwiched by the adjacent ends and has a leg (22) located between and engaging the innermost parts (16, 42) and diverging arms engaging respective sides (14, 50) of the V-shaped notch.