Abstract: A process and apparatus are described for forming glass fibers which utilizes a rotating melter for the fiber glass batch materials and stators which house the fiber forming bushings. The stators are encompassed by the rotating melter, but not physically touching it. The glass melt flows directly from the melter to the bushings in the stators and temperatures at the bushings are controlled by raising or lowering the stator with respect to the melter, the bushings being devoid of any electrical energy input as is conventionally practiced.

Abstract: A decorative light fixture cover is disclosed which is adapted to enclose existing shaded inground lights, lampposts and carriage lamps. The covers are constructed of hinged sections which open to permit them to be placed over and around the existing shaded light. When closed, the hinged sections form a collar around the light source mounting post.Means are also provided to secure the collar firmly to the mounting. Also disclosed is a means to lock the decorative shade to the post after installation.

Abstract: A method of preparing glass fiber strands is shown wherein the glass fibers as they are drawn from the glass fiber forming bushing are wound in a unique way. The fibers are drawn from the bushings using high speed, low energy drawing devices such as capstans and godets. They are then passed to high speed, low energy flyers for distribution onto the surface of light weight, low energy, slowing rotating mandrels. All the winding equipment and the attenuation devices are light in weight requiring very low horsepower motors compared to the high horsepower, high energy devices of the current state of the art. The flyers are shown driven by conventional motors or by a compressed air system. Collection of the strand takes place on the ends of the elongated mandrels shown and create a novel doughnut shaped forming package of fiber glass with properly distributed strands thereon suitable for unwinding.

Abstract: This invention provides a polarographic/amperometric measuring sensor, particularly useful for transcutaneous determination of the oxygen partial pressure (tcpO.sub.2) in the blood by means of a Clark-type electrode arrangement. According to the invention the counter electrode, preferably made of a noble metal, is disposed about the insulating material encasing the working electrode and is preferably made of the same noble metal as the working electrode. The measuring sensor can also be provided with a pH electrode for simultaneous determination of the carbon dioxide partial pressure (tcpCO.sub.2) in the blood.

Abstract: To enable conventional adapter assemblies used to accurately position a removable biosensor, to be used for measurements in the interior of the skull of small children, the disclosed is a support sleeve which ensures an axial length compensation, taking into account the thinner skull bone thickness, and at the same time ensures accurate alignment of the adapter assembly and the biosensor. The support sleeve also ensures a more even distribution of axial thrust forces when the adapter assembly and the biosensor are positioned. The support sleeve comprises an inwardly extending peripheral flange defining an annular space between the flange and a tubular element slidably inserted in the sleeve. A spring element disposed in the space assures adequate anchorage in the skull bone.

Abstract: A fiber glass production bushing is described utilizing a flat precious metal plate which is preferably supported by a nonprecious metal support plate. The support plate has slots cut in it so that the rows of depending fiber glass tips can project through it and yet be electrically isolated from the support plate by an air gap. The side and end walls of the bushing are provided by the bushing block located above the tip plate.

Abstract: A strand deflector used in the manufacture of continuous strands is shown and described. The deflector comprises a rigid surface which stretches across the width of the mat making machine and which is interposed between the strand feeders located above it and the mat making surface so that the strands fed toward the surface must deflect from the deflector surface before they are collected on the mat making surface. The deflector surface is adjustable in the vertical direction and the angle of deflection with respect to the flow of strand from the feeder may also be changed to any desired value.

Abstract: An improved bushing controller is shown which utilizes an auxiliary transformer in each of the variable impedance circuits in the controller and the bushing tha the controller is connected to increase the current capability of the controller by a significant percentage. Improved performance of fiber glass bushings producing multiple forming packages is realized.

Abstract: The combined sensor with a thermostatted heating device (7, 23) for the simultaneous and continuous transcutaneous measurement of oxygen (O.sub.2) and of carbon dioxide (CO.sub.2) in the blood contains a measuring device (1) for the partial pressure of CO.sub.2 (pCO.sub.2), in which there is pure optical/spectrometric operation or which operates on the principle of pH measurement in a electrolyte (8), and which is separated from the measuring site on the skin by a membrane (13) which is permeable to both CO.sub.2 and light, and contains another measuring device (24, 25, 26) for the spectrometric measurement of the blood oxygen saturation (sO.sub.2). The advantage over a known pO.sub.2 /pCO.sub.2 combined sensor is that the combined sensor according to the invention can be operated at a low operating temperature of, for example, 42.degree. C.

Abstract: A method and apparatus constructed to measure the fluid present in a multifilament or fiber strand moving at high speed is described and involves conductive contact points along the strand path which contact the strand and generate signals. The signals which are conductance measurements are synchronously demodulated to produce a signal representing the volume of fluid in the strand.

Abstract: A novel preform screen for use in producing preforms for structural liquid composite molding is described. The screen has a raised edge provided around the screen to catch fibers as they are directed toward the screen surface during production of a preform. The preforms produced have a perimeter which is composed of chopped rovings oriented parallel to the edges of the preform.

Abstract: A method and apparatus for controlling a glass fiber forming environment is disclosed. A fin cooler having a plurality of hollow cooling fins, each provided with a coolant liquid flow passage and further having a header block provided with separate coolant liquid inflow and outflow channels, is placed in a closed loop coolant liquid circulation network. Water may be employed as the coolant, but preferably a heat transfer liquid having a boiling point higher than water, low vapor pressure, and a high specific heat value, is used as the coolant liquid. The heat transfer liquid takes on heat from the glass fibers as it passes through the cooling fins, and gives up this heat in a heat exchanger which may use plant process water or forced air as the secondary heat transfer medium. By regulating fluid flow, fin temperature can be manipulated to improve process control and product uniformity.

Abstract: A method and apparatus for heating fibers reinforced thermoplastic sheets is disclosed. The apparatus involves use of gas heating ovens adapted to allow several layers of material to be heated continuously, with the conveyors stacked are above the other. Stacking of the heated product can be provided at the oven exit. Provisions for cleaning and diffusing the gases over the work piece are also described.

Abstract: A method and apparatus for heating fibers reinforced thermoplastic sheets is disclosed. The apparatus involves use of gas heating ovens adapted to allow several layers of material to be heated continuously, with the conveyors stacked are above the other. Stacking of the heated product can be provided at the oven exit. Provisions for cleaning and diffusing the gases over the work piece are also described.

Abstract: A control system for a fiber glass forming bushing is described in which two thermocouple circuits are connected to a transformer having two sets of windings on a common core in series aiding configuration. A third thermocouple circuit is connected to the transformer. This configuration measures bushing temperatures, weight averages the signals representing those temperatures, and feeds a signal to a temperature controller for the bushing. The interposed transformer prevents the improper operation of the controller and possible damage to the bushing.

Abstract: A method and apparatus for heating fibers reinforced thermoplastic sheets is disclosed. The apparatus involves use of gas heating ovens adapted to allow several layers of material to be heated continuously, with the conveyors stacked are above the other. Stacking of the heated product can be provided at the oven exit. Provisions for cleaning and diffusing the gases over the work piece are also described.

Abstract: A method and apparatus for producing hollow glass fibers is described in which the glass from a bushing tip and the gas used to provide a lumen in fibers as they are drawn from the tip are fed from passages in the tip sized to provide desired inside to outside diameter in the fibers drawn at the tip. This ratio is established inside of the tip by sizing the gas column having the tip and the glass column leaving the tip such that the ratio of the gas column to glass column is substantially the same ratio desired in the hollow fiber being drawn. Apparatus used to produce this ratio is also shown.

Abstract: Novel resin reinforcing composite mats of continuous strands are described for use in pultrusion processes. The pultruded parts are characterized by having a reinforcement of mats and rovings with the reinforcing mats and rovings being distributed throughout the parts.

Abstract: A fiber glass bushing having a thermocouple embedded in the bottom thereof and a method of preparing the same is described. The thermocouple is carried in a plate member which is welded to the bushing bottom by a weld on the outside of the busing.

Abstract: An apparatus and method for measuring twister ring warp on a twister frame are described. The apparatus involves a levelling device having flat contact points which engage the twister ring on the frame, and when all contact points are touching, the ring indicates the degrees of deflection from flat exhibited from the ring.