Abstract: A capacitive liquid level sensor (1). The sensor comprises a sensor body in the form a tongue with a freely depending portion (3) extending to a distal tip (6) at its lowermost end. A set of spaced capacitive electrodes (7) extend along the tongue towards the distal tip. In use, when the distal tip (6) of the tongue is immersed in a body of liquid, the capacitance between the electrodes (7) changes depending on the depth of the body of liquid. The width of the tongue increases in the downward direction at least for part of the bottom half of the freely depending part of the tongue.

Abstract: A capacitive liquid level sensor (1). The sensor comprises a sensor body in the form a tongue with a freely depending portion (3) extending to a distal tip (6) at its lowermost end. A set of spaced capacitive electrodes (7) extend along the tongue towards the distal tip. In use, when the distal tip (6) of the tongue is immersed in a body of liquid, the capacitance between the electrodes (7) changes depending on the depth of the body of liquid. The width of the tongue increases in the downward direction at least for part of the bottom half of the freely depending part of the tongue.

Abstract: A guard for a high voltage terminal bushing includes a generally circular planar isolating member of an electrically insulating material which is mounted on the upper surface of the bushing and provided with a plurality of openings through which wind and rain may freely pass. A radial diameter of the isolating member is sufficient to prevent small animals from contacting a high voltage cable connected to the bushing and ground potential. A cylindrical section extends downwardly from the isolating member to support the guard on the upper surface of the bushing. A second cylindrical member extends downwardly and surrounds the upper portion of the bushing to form a cap to protect and shield the terminal end of the bushing. A lightning arrestor may be included which extends from adjacent the high voltage terminal to a point adjacent a transformer housing or ground potential.

Abstract: Process for producing refined steel including the provision of molten iron, adding molten steel to said molten iron to provide a molten mix, adding iron bearing material in unmolten form to said mix, and refining the mixture by blowing essentially pure oxygen therethrough.