Abstract: Method and apparatus for the production of fibrous materials from attenuable substances, particularly molten glass, are disclosed, along with the fiber products which result. In the disclosed system the material to be fiberized flows into a region established as a result of the interaction of a jet transversely oriented with respect to a larger blast, the material being acted upon in the interaction zone to produce a highly attenuated fiber. Method and apparatus are disclosed utilizing a glass admission orifice and jet blast generating devices which are spaced from each other. Moreover, method and equipment are disclosed for forming fibers from attenuable material by the use of high velocity whirling gas currents or tornadoes. Attenuation is preferably effected in two sequential stages, each of which utilizes a pair of high velocity whirling currents or tornadoes, with the gases in the two tornadoes of each pair turning in opposite directions.

Abstract: Apparatus and method for winding a continuous strand formed from an attenuable material is disclosed. The winding collet has a starting drum mounted on one end. An end face of the starting drum includes diametrically opposed strand engaging members that engage the strand as it is brought against the face of the starting drum. The strand is conducted from the strand engaging means to the starting drum and is wound on the starting drum until the winding collet reaches operating speed. When the winding collet is at its operating speed, the strand is urged away from the starting drum and onto the winding collet to form the winding.

Abstract: A neutral bronze sheet glass has a dominant wavelength in the vicinity of 575 nm, and a monochromatic transmittance which in the range from about 400 nm to about 550 nm is on the average from about 5% to about 50% lower than in the range from about 550 nm to about 750 nm, and possesses in thicknesses suitable for glazing a luminous transmittance above 70%.

Abstract: An apparatus for assembly of transparent plate shaped objects to form a multiple, insulating window comprises individual support parts initially disposed at an angle of no more than 180.degree. one relative to the other and each support part is adapted to receive one of the plate shaped objects to be assembled. At least one of the support parts is movable through an angle of rotation about a first axis located near the plate shaped object which it supports, and at least one of the support parts then is movable through a smaller angle of rotation about a second axis further removed from the plate shaped object which it supports. Both of the axes are parallel to each other and to the plane of each support part, and the second axis is at substantially the intersection of the planes including the faces of the confronting plate shaped objects after the first movement.

Abstract: Method and apparatus for controlling and particularly for reducing the retention rates of viscous impregnate or coating materials on fibers, strands or textile ribbons are disclosed. The impregnated or coated material is submitted to successions of compressions and decompressions. Drainage of the viscous material is effected in the decompression intervals which separate the compression intervals.

Abstract: An apparatus is disclosed for applying a plastic filament on the periphery of a face of a glass sheet which is adapted for use in the production of a multiple window pane unit. The apparatus includes an extrusion device for extruding on the glass sheet a plastic material having a viscosity greater than 115.degree. Mooney at the end of an 8 minute test at 40.degree. C. as measured by a Mooney consistometer, and support means defining a surface for supporting a glass sheet. The extrusion device includes a body portion and head member and an extrusion nozzle carried by the head member for extruding the plastic material. The nozzle extends from the head at right angles to the longitudinal axis of the device and the head is rotatable relative to the body portion about the longitudinal axis of the device to permit orientation of the nozzle at an angle of about between 15.degree. and 45.degree. with respect to the plane of the face of the glass sheet which is supported by the supporting means.

Abstract: Impregnated or coated linear material, for example, coated glass fibers, are dried in one or more calibrated spaces which control the percentage of impregnate or coating. A sweeping device moves the material laterally assuring complete sweeping and hence self-cleaning of the calibrated spaces.

Abstract: An etherified melamine-formaldehyde resin is disclosed that has prolonged shelf life, comparatively low free formaldehyde content, and is especially adapted as a binder for glass fiber mats. The melamine-formaldehyde resin is prepared in several distinct stages including condensation in a basic aqueous solution, etherification by cooling and acidification, neutralization with triethanolamine, and final stabilization. The free formaldehyde content of the resin so produced can be adjusted by reacting it with urea.

Abstract: Multiply windows are made by assemblying an interlayer of thermoplastic adhesive between plies of the sheet, subjecting the outer surfaces of the plies and the interlayer to vacuum, and subjecting the evacuated assembly to heat and pressure sufficient to bond them together while maintaining the vacuum. Apparatus is provided for this operation which includes an autoclave, means to establish a selected temperature within the autoclave, means to establish a selected pressure within the autoclave, flexible sack means within the autoclave, means to seal the sack means about a multiply sheet, and vacuum means connected to the interior of the sack means.

Abstract: Microwave heating apparatus especially useful for heating and curing reinforced thermo-hardenable synthetic resins is disclosed. Heating cells are formed by parallelepipedal enclosures, the walls of which are odd multiples of 1/4 the wavelength of electromagnetic energy being utilized for heating. Adjustment means for adjusting the enclosure to minimize reflected power are mounted within the enclosure. A production line comprises a series of successive heating cells that are supplied from the same power source; die structures between the cells can be used to form the material being processed.

Abstract: This invention relates to a highly effective fire-proof window consisting of at least one glass sheet mounted in a frame, the frame being such that when the glass sheet is exposed to the effect of heat in a fire, it will be subjected to a somewhat uniform heat effect thus preventing breakage due to the buildup of stresses. Uniform heating is produced by the inclusion of a covering along the edge of the glass which falls away upon heating of the window.

Abstract: The surface of a transparent refractory material such as glass or a vitreous ceramic is coated with a semi-reflective film of tin oxide by projecting finely divided particles of a pyrolytically decomposable organotin compound against the surface of the substrate material that has been heated to a temperature of between about 400.degree. and 650.degree. C. The finely divided organotin compound has a particle size of not greater than about 20 microns and is suspended in an anhydrous carrier gas to which carrier gas has been added a gaseous fluoride compound. In an advantageous embodiment of the process the pyrolytically decomposable organotin compound is dibutyl tin oxide, the carrier gas is dry air and the added fluoride compound is dry hydrogen fluoride.

Abstract: A form-cutting machine is disclosed for cutting a form in a flat surface of a sheet of material such as glass in response to a numerical control signal, the shape of the form being determined by the numerical control signal. The form-cutting machine comprises a frame, sheet-support means for supporting the sheet of material to be cut, an X-direction carriage-positioning assembly, a Y-direction carriage-positioning assembly, and a tool carriage having a cutting tool mounted on it so that the cutting tool can be positioned in a plane in which the cut is to be made. Each carriage-positioning assembly includes a carriage support member which extends generally perpendicular to a direction of motion, two guide members fixed to the frame which are spaced apart from one another and extend generally parallel to the direction of motion, and two sliders connected to ends of the carriage support member and slideably mounted on the two guide members.

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: The invention disclosed provides a new improved metallic support member and process for bonding the metallic support member to a glass surface by means of an intermediate vitreous coating.

Abstract: Sizing compositions for coating glass fibers as well as the coated fibers in which the compositions are constituted essentially of two film forming agents and of two lubricants. One film forming agent is a modified starch in which almost the entire mass of starch granules is burst. The second is an acrylic polymer, preferably a water-soluble one. One lubricant is non-ionic and preferably a mineral oil. The second is a polyethylene wax in the form of an aqueous emulsion containing a cationic emulsifier.

Abstract: This invention relates to a window with increased resistance to fire, consisting of at least one pane of glass, such as soda glass, mounted in a metal frame in such a way that during a fire the border and edge of the side exposed to the action of heat, or in some cases the borders and edges of both sides, are exposed to the heat.

Abstract: This invention relates to a fire-proof window consisting of at least one glass sheet mounted in a frame and which permits generally uniform heating of the glass sheet when exposed to the effect of heat in a fire thus preventing breakage due to the buildup of stresses. Uniform heating is produced by the inclusion of a listel along the edge of the glass which is moved away from the glass by means of a member disposed between the listel and glass. This member expands in volume under the effect of heat to push the listel away from the glass sheet.

Abstract: A vehicle antenna window and amplifier are described comprising an antenna conductor located on or in a windshield and a high input impedance transistor amplifier circuit, these two components being mutually adjusted for amplification primarily in the two frequency bands ranging from 0.1 to 6 MegaHertz (MHz) and from 88 to 104 MHz.

Abstract: Making insulation sleeves from binder containing fibrous material, including integrated method and apparatus features for dividing a continuous blanket or web of fibrous material into individual lengths, winding individual lengths of fibrous blanket upon a multi-part separable mandrel, heating the mandrel to cure the binder in the inside surface layer of the sleeve, separating the sleeve from the mandrel, bringing the outside surface of the sleeve into contact with a heated surface to cure the binder in the outside surface layer of the sleeve, delivering the sleeves to a curing oven in which the sleeves are advanced and rotated, trimming the ends of the sleeves, and axially slitting the sleeves.