Glaswerk Schuller Gmbh

Fredo E Schlachter

Dieter G Kahnke

Heinz P Keib

Christian Beck

A process and apparatus for the production of glass fiber is disclosed. The process and apparatus are directed to collecting filaments being drawn from streams of liquid glass into a plurality of loosely bound strands of filaments which additionally are not treated with any binders. The strands are then drawn off individually on separated but parallel rotating surfaces to provide the filaments with a desired diameter.

Process and mechanism for the production of glass fiber products for

This invention relates to a method and apparatus for integrating a newly formed continuous filament into a continuous strand. Mechanically complicated prior integration devices are usually expensive to purchase and operate and do not always ensure that the initially formed section of the new filament is separated from the new filament, that the fiber diameter of the new filament is predrawn sufficiently for ready integration, or ensure the reliability of the guiding elements facilitating integration. The present invention includes the operations of drawing a plurality of continuous filaments 3 from a bushing 1 into a fiber fan 4 by gathering the filaments 3 into a continuous strand 6 at a deflection point or roller 5. Should one of the filaments 3 break, a new continuous filament 8 is formed which is deflected by a guide plate 9 toward the point 5. A water stream 13 separates the filament 8 from its associated initially formed section and concomitantly predraws the filament 8 to an initial fiber diameter conducive to integration. The filament 8 is further predrawn and conducted by the stream 13 between guide bars 15 to a point 5 where the strand 6 and the filament 8 are jointly deflected along a common path X defined at least by the point 5 and another point or roller 7 such that the newly formed filament 8 is drawn to its final fiber diameter and integrated with strand 6.

Method and apparatus for the integration of newly formed filaments into

This invention relates to a method and apparatus for promoting the fiberization of continuous lengths of thermoplastic materials such as glass. Prior attempts to reduce fiber breakage, bushing flooding and facilitate fiberization utilized steam or a decomposable gas or gas mixture which was exposed to the heat radiating from the bushing in order to form a treatment medium. However, the prior art was plagued with poor gas distribution in the fiberization zone and thermal degradation of the structural elements constituting the treatment medium distribution system caused, in part, by the high radiant heat levels experienced proximate the bushing. The present method and apparatus comprises conducting a pressurized fluid and a vaporizable treatment liquid to a heat exchanger comprising a mixer tube located close to the bushing and a delivery tube. Radiant heat from the bushing causes the liquid to vaporize and mix with the pressurized fluid forming a treatment vapor. The vaporization of the liquid tends to cool the mixer tube reducing the thermal structural degradation of the mixer tube. The treatment vapor is conducted to the delivery tube which is removed from the radiant heat of the bushing and which has a plurality of orifices directing the vapor towards a distributor wall. In one embodiment of the apparatus, the distributor wall is formed with a plurality of openings which allow the treatment vapor to be induced into the column of filaments being formed in the fiberization zone. In a second, more preferred embodiment, the heat exchanger is mounted on a framework which is movable relative to the bushing and the fiberization zone and is provided with a distributor wall which is inclined towards the bottom of the bushing. The distributor wall may be provided with a plurality of guide vanes which direct the treatment vapor towards the filaments being drawn. Modifications to the structure of the apparatus are also disclosed.

Method and device for the manufacture of glass filaments

A spinnerette has an extrusion crucible provided with extrusion nozzles in its bottom wall, and a melting crucible atop the extrusion crucible. The melting crucible is bounded in longitudinal direction by walls having arcuately curved wall segments so that the interior of the melting crucible is composed of a plurality of generally cylindrical compartments which are arranged side by side in the longitudinal direction and which open into one another where they adjoin each other.

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Johannesberg, Germany

Fredo E Schlachter