Abstract: Glass fibers for insulation uses are produced by means of a centrifugal spinner which introduces glass streams into an annular attenuating blast adjacent the periphery of the spinner. An improved product quality and/or production rate as well as prolonged spinner life are obtained by selection and utilization of a novel combination of structural and operating parameters characterized in particular by a spinner diameter and peripheral speed substantially greater than conventionally employed.

Abstract: Glass fibers for insulation uses are produced by means of a centrifugal spinner which introduces glass streams into an annular attenuating blast adjacent the periphery of the spinner. An improved product quality and/or production rate as well as prolonged spinner life are obtained by selection and utilization of a novel combination of structural and operating parameters characterized in particular by a spinner diameter and peripheral speed substantially greater than conventionally employed.

Abstract: Glass fibers for insulation uses are produced by means of a centrifugal spinner which introduces glass streams into an annular attenuating blast adjacent the periphery of the spinner. An improved product quality and/or production rate as well as prolonged spinner life are obtained by selection and utilization of a novel combination of structural and operating parameters characterized in particular by a spinner diameter and peripheral speed substantially greater than conventionally employed.

Abstract: Glass fibers for insulation uses are produced by means of a centrifugal spinner which introduces glass streams into an annular attenuating blast adjacent the periperhy of the spinner. An improved product quality and/or production rate as well as prolonged spinner life are obtained by selection and utilization of a novel combination of structural and operating parameters characterized in particular by a spinner diameter and peripheral speed substantially greater than conventionally employed. The present technique further provides reduced turbulence in the receiving chamber and hence an improved distribution and orientation of the fibers on the collecting conveyor.

Abstract: Methods and apparatuses for separating heat hardenable constituents from an aqueous solution of thermohardenable fiber binder material by insolubilizing the constituents through the application of both heat and pressure are disclosed.

Abstract: Methods and equipment are disclosed for production of mineral fibers, by attenuation, involving the use of a substantial volume of gas, in which water is also employed at least in a fiber binder, the methods and equipment providing for recirculation of most of the gases, and preferably also of the water employed in the system. Both the gases and the water are purified and the pollutants are separated and are also treated to convert the pollutant constituents to a form not ecologically objectionable for disposal. The methods and equipment also minimize discharge of fluids and aural efflux from the plant. Methods and apparatus are also disclosed for controlling said stabilizing various operating conditions of the fiberization; such as the temperature and the pressure in the fiber forming section or chamber.

Abstract: System for suppression of pollution in fiber attenuating operations, especially in mineral fiber insulation blanket production. The system disclosed provides gas blast attenuation of the attenuable material in a fiber forming chamber and for recirculation of attenuating gases and for discharge of a portion of the gases by means of a controllable blower. The operation of the blower is regulated by a pressure sensor responsive to the pressure in the forming section.