Electronic and electrical burner controls for industrial furnaces, kilns, ovens, dryers and boilers; edge sensors and centering sensors for determining the position of a moving web or strip; electronic web position controls, electronic detectors and electrical controls for use in textile web equipment, paper process equipment, film and foil process equipment; electronic detectors for detecting the edge or center of metal strips for guiding metal strips in high speed processing and electrical controls for guiding metal strips during high speed processing; air-fuel ratio flow electrical controllers; control valves for regulating the flow of gases and liquids; modulating high/low and on/off electrical controllers for gaseous and liquid fuel and air; automatic adjustable port valves; annunciators, namely, signal processors; air-fuel ratio regulators, not being parts of machines and not used in utility gas, water or other sanitary installations; air-fuel ratio electronic controllers; pressure regulators for liquid and gaseous fuels and not used in utility gas, water or other sanitary installations; furnace pressure controls; metering orifices, namely, orifice plates for the metering of gas and liquid flows; modulating high/low and on/off electronic controllers for liquid or gaseous fuels and air; automatic adjustable port valves and butterfly control valves for regulating the flow of gases and liquids; annunciators in the nature of an electronic signal processors and alarms; position detectors and electronic controls for textile web process equipment