Abstract: An apparatus for making dual component fibers is provided and includes a spinner having peripheral and bottom walls. The spinner includes orifices located on the peripheral wall thereof for centrifuging the dual component fibers, with the spinner being divided into a series of generally vertically-aligned compartments by baffles positioned circumferentially around the interior of the peripheral wall. A first divider is provided in the spinner for directing the first molten thermoplastic material into alternate ones of the compartments, and a second divider is provided for directing the second molten thermoplastic material into the remaining ones of the compartments so that adjacent compartments contain different thermoplastic materials. Passages are located in each of the compartments through which the respective molten thermoplastic materials flow to the orifices on the peripheral wall of the spinner.

Abstract: A conformable insulation assembly is provided and includes a mineral fiber batt of a binderless fibrous material of substantially long fibers. The insulation assembly is capable of conforming and expanding its shape to an area into which it is installed better than prior art insulation assemblies.

Abstract: A pair of forming elements incorporate features which restrain a thin foil workpiece without requiring high or excessive clamping pressures. A retaining step is provided in the second forming element having the forming cavity. It has been found that thin foil workpieces bent over and engaged by contact with the retaining step are secured against slippage with reduced clamping pressures. Moreover, the thin foil workpieces exhibit material draw during forming without the excessive lateral pressure between clamping surfaces that causes wrinkles. Substantially wrinkle-free flanges remain in the formed article.

Abstract: Fiberglass insulation having improved parting strength is prepared by forming a fiberglass mat, applying an aqueous acid aluminum phosphate binder, curing the binder, and autoclaving the resultant insulation batt.

Abstract: A method for making asphalt fibers includes supplying molten asphalt to a rotating asphalt spinner at a temperature between about 270.degree. F. and about 500.degree. F., centrifuging asphalt fibers from the asphalt spinner, and collecting the asphalt fibers. A method for integrating asphalt with reinforcement fibers includes establishing a moving veil of reinforcement fibers, such as glass fibers, and centrifuging asphalt fibers from a rotating asphalt spinner positioned within the veil of reinforcement fibers such that the asphalt is integrated with the reinforcement fibers. A method for making asphalt roofing shingles includes assembling together a mat of asphalt fibers with a mat of reinforcement fibers, coating the assembled mats to form an asphalt coated sheet, applying granules to the asphalt coated sheet, and cutting the asphalt coated sheet into roofing shingles.

Abstract: A method and apparatus for installing insulation material within a roof structure (11). The apparatus includes a carriage (26) which is urged along the purlins (18) of the roof structure (11). A roll of insulation material (43) is mounted to the carriage (26) and dispenses a substantially continuous sheet of blanket insulation material (39) over the purlins (18) as the carriage (26) is progressively moved along the length of the purlins (18). A radiant barrier dispenser (70) dispenses a layer of radiant barrier material (72) over the dispensed blanket insulation material (39), and a cross-wise layer of insulation (86) is applied across the length of the purlins (18) in a direction normal to the direction of application of the blanket insulation material (39). Thereafter, sheets of hard metal roofing material (24) are attached to the purlins (18) over the cross insulation (86) to form the insulated roof structure (11).

Abstract: A method for manufacturing a mineral fiber product includes establishing a stream of mineral fibers, directing polymeric fibers toward the stream of mineral fibers to cause intermingling of the polymeric material, and applying heat to the polymer fibers so that some of them become softened to the extent that they lose their fibrous form and become attached to the mineral fibers as non-fibrous particles, whereas some of the polymer fibers retain their fibrous form.

Abstract: Apparatus for making dual component fibers is provided and includes a spinner having a peripheral wall. The spinner includes orifices located on the peripheral wall thereof for centrifuging the dual component fibers, with the spinner being divided into a series of compartments by baffles positioned circumferentially around the interior of the peripheral wall. The baffles are positioned at an angle of from about 5.degree. to about 75.degree. from vertical, and most preferably about 45.degree. from vertical. The number of orifices on the spinner peripheral wall can thus be increased to increase the throughput of fibers from the spinner while still maintaining a minimum required spacing between orifices for the structural integrity of the spinner.

Abstract: Apparatus for making dual-component thermoplastic fibers, such as glass fibers, comprises a spinner having an orificed peripheral wall for centrifuging fibers from thermoplastic material, the spinner having vertically aligned compartments with first and second thermoplastic materials in alternate compartments, and a series of elongated orifices in the peripheral wall in communication with each of two adjacent compartments to enable centrifuging of both the first and second thermoplastic materials from a single orifice.

Abstract: A method for producing asphalt fibers includes supplying molten asphalt to a rotating asphalt spinner, centrifuging asphalt fibers from the asphalt spinner, and collecting the asphalt fibers. The molten asphalt is supplied to the asphalt spinner at a temperature within the range of from about 270.degree. to about 500.degree. F. Also disclosed is a method for integrating asphalt with reinforcement fibers including the steps of establishing a downwardly moving veil of reinforcement fibers, such as glass fibers, and centrifuging asphalt fibers from a rotating asphalt spinner positioned within the veil of reinforcement fibers to integrate the asphalt with the reinforcement fibers. A method for making an asphalt roofing shingle includes the steps of assembling together a mat of asphalt fibers with a mat of reinforcement fibers, coating the assembled mats to form an asphalt coated sheet, applying granules to the asphalt coated sheet, and cutting the asphalt coated sheet into roofing shingles.

Abstract: An improved fibrous glass insulation assembly is disclosed. The insulation assembly includes at least one fibrous glass body enclosed by a vapor barrier plastic outer layer or by a bag or package. A desiccant is provided adjacent the fibrous glass body to remove moisture.

Abstract: A method of coating a corrugated pipe includes preparing an asphalt composition having a polymer constituent within the range of from about 3 to about 20 percent by weight, the composition having a softening point within the range of from about 180.degree. F. to about 250.degree. F. and a viscosity at a temperature of 360.degree. F. within the range of from about 600 to about 4000 cps, heating the asphalt composition to a temperature within the range of from about 340.degree. F. to about 390.degree. F. and coating the corrugated pipe by positioning at least a portion of the corrugated pipe in the heated asphalt composition for a time sufficient for the corrugated pipe to reach a temperature of at least 150.degree. F. The coated pipe is then removed from the asphalt composition for cooling.

Abstract: A method for manufacturing a mineral fiber product comprises centrifuging mineral fibers with a spinner, forming a veil of the mineral fibers moving in the direction of the axis of the spinner, directing toward the veil, from a position within the veil, polymeric material to cause intermingling of the polymeric material and the mineral fibers, and, collecting the intermingled polymeric material and mineral fibers to form a mineral fiber product.

Abstract: A brake system for a window assembly comprises a track liner having two generally parallel sides defining a pocket, opposed grooves extending along the sides of the track liner, each groove being defined by a flange extending along the track liner, a base mounted for sliding along the track liner, a brake plate connected to the base and mounted for sliding along the track liner, within the grooves, the brake plate being flexibly connected to the base to enable the brake plate to move relative to the base when the brake plate is moving along the groove, a pair of brake shoes connected to the base and mounted for sliding along the track liner, the flange on each side of the track liner being positioned between the brake plate and a brake shoe, and a receiver actuable to urge the brake shoes and brake plate toward each other to grip the flange in a braking action.

Abstract: A window assembly for selectively enabling a sash to be tilted out of the plane of the frame includes a brake and a sash retainer, the sash retainer having a reciprocally mounted bolt which upon rotation actuates the brake, and a lock which prevents reciprocation of the bolt until the bolt is rotated and the brake is engaged.

Abstract: This invention relates to the production of low density resol foams from resol resins. The foams have a density of 2.0 pounds per cubic foot or less and are produced with a blowing agent of low boiling point HCFCs and perfluoroalkane.

Abstract: A glass fiber insulation product comprises irregularly-shaped glass fibers of two different glasses having differing coefficients of thermal expansion, with the irregularly-shaped dual-glass fibers exhibiting a substantially uniform volume filling nature, and providing improved recovery and thermal conductivity abilities even in the absence of a binder material.

Abstract: An insulation product comprises an elongated blanket of fibrous insulation material having a facing on one major surface, the facing extending beyond the edges of the blanket to form opposed flanges, the flanges having first reinforcement fibers extending longitudinally along the outer edge zones of the flanges, and the flanges having intermediate zones positioned inwardly of the outer edge zones, and provided with second reinforcement fibers of a lesser density so as to provide a visual indication of the boundary between the outer edge zones and the intermediate zones of the flanges.

Abstract: A corrosion-resistant fiberglass spinner is prepared by applying consecutive, alternating layers of chromium and nickel to the bores of the spinner, and thereafter thermally interdiffusing the chromium and nickel to form a corrosion-resistant coating.

Abstract: The method for applying granules to a moving coated asphalt sheet includes selecting blend drop areas on the sheet, the remainder of the sheet comprising background areas, depositing background granule drops on portions of the background areas such that the background granule drops have generally sharp leading edges which define upstream edges of the blend drop areas and have generally fuzzy trailing edges, depositing blend drops on the blend drop areas such that the blend drops have generally sharp leading edges and generally fuzzy trailing edges which overlap the background granule drops, and then depositing background granule drops on remaining portions of the background areas. The generally sharp leading edges of the background granule drops define the trailing edges of the blend drops so that when blend drops which overlap the background granule drops are removed by inverting the sheet, blend drop areas having sharp leading and trailing edges are produced.