Document NGnzBVxDEyoErMjz3d8KGgwr8

PLAINTIFFS EXHIBIT JM 1048 Much 26, 1940. s.l. vello 2,194,727 PRODUCTION OF FIBERS FROH GLASS, SLAO, AND THE LIKE MELTABLE MATERIALS Filed Aug. 10, 1937 2 Sbeete-Sheet 1 19 13 19 ^^461 S. fe&o NlTC 017081 March 26, 1940. L. S. VELLO 2,194,727 PRODUCTION Of FIBEBS FROM GLASS, SLAO, AND THI LIKB MBLTABL8 MATERIALS MTC 017082 Patented Mar. 26,1940 2,194,727 UNITED STATES PATENT OFFICE 24*4,727 PRODUCTION OP FIBERS FROM GLASS, SLAG, AND THE mew MELTABLE MA TERIALS Leopold* Sanches VeDo, Saint Cloud, Prance, *jgaor to Naamloooe Tennootachap Ibatechappil tot Beheer en KQMtath van Oetrooien, The Hague, Netherlands AppUcatlon August 1*. 19S7, Serial No. UU1I In Germany August 21,19M 7 Claims. (CL 92--91) This invention relates to that kind of pro ducing fibers from glass, slag and the like melta ble according to which the hot molten mass is flown in a preferably continuous thin j stream from the outlet of a suitable tank, such as a melting furnace, onto the surface of a rapidly rotating disc from which It is thrown off by centrifugal action in the form of fine fibers or filaments,. id The Invention has for Its object to so Im prove this known method as to allow the pro duction of fibers of greater fineness than could hitherto be produced with this method. To this end. the present invention essentially i.~> consists in subjecting the mass thrown off the disc In a divided state to a further sub-division of still finer grade, which Is attained by causing the Individual mass particles to pass from the disc surface proper to a surface contiguous with 20 and constituting an enlargement of the former and surrounding it like an aureola, this surface being formed by a multiplicity of substantially radial linear members along which the divided mass is caused to travel and be further sub2j divided so as to be converted into fibers of the greatest fineness. For carrying this Improved method into effect the centrifuging disc is provided at its periphery with a multiplicity of thin metal rods or wires ;;o extending substantially radially from the disc and lying flush with the top surface of the latter. The said rods or wires preferably consist of platinum, chromlum-nlckel-steel or another metoj al or metal alloy having a high heat resistance. They are made of great fineness, having for ex ample a thickness of only one tenth of a milli meter. The wires are attached by welding, sol dering or In any other suitable manner to holding 40 rings or covers of the disc or to the disc itself. The parts carrying the wires preferably consist of the same heat-resistant metal or metal alloy as the wires or are provided with a coating of such metal. This wire aureola considerably en- 4o larges the diameter of the centrifuging disc. It may be of a dimension to Increase the said diam eter for example from about 200 millimeters to about from 400 to 500 millimeters. The cen trifuging disc may be disposed in a horizontal or 50 Inclined plane. It is attained by the invention that the molten mass delivered to the revolving disc is guided by the said wires beyond the periphery of the disc proper, subjected thereby to an utterly fine 55 division and thrown as fibers or filaments into the surrounding space only at the free ends of the wires. The great fineness of the fibers at tainable In this way may even be Increased by an increased speed of rotation of the revolving disc. Owing to the possibility of drawing the t mass to fibers of exceedingly great fineness, the supply of a predetermined quantity of molten mass yields a correspondingly large volumetric quantity of fibers. The resulting fibrous prod uct has less density, a considerably looser texture 19 and therefore a higher Insulating efficiency than products obtained by the corresponding old method. The fine fibers or filaments, moreover, are much more suited for undergoing treatments for textile and like purposes. 15 Several embodiments of devices according to the invention are illustrated, by way of example, in the accompanying drawings, in which: Fig. 1 is an elevatlonal view, partly in section, of an apparatus for producing glass fibers with so the improved centrifuging device according to the Invention. Fig. 2 Is a vertical section and Fig. 3 a plan view of the centrifuging device on an enlarged scale. 25 Fig. 4 is a section similar to Fig. 2 of a some what modified form of device. Fig. 5 is a partial section through another modification, and Fig. 6 Is a vertical section of still another form 30 of centrifuging device. Referring to the drawings the numeral II designates a melting furnace for the material, such as glass, from which the fibers are to be produced. The furnace has in its bottom an 35 outlet 11 through which a stream of molten ma terial 12 Is delivered to the top surface of a cylin drical body or disc 13 of suitable refractory ma terial, which is caused to revolve at high speed and from which the molten mass Is thrown off 40 in divided state and drawn to fibers by centrif ugal action. 14 is a jacket surrounding the space of fiber formation. The disc II is fastened by means of a suitable armature II to a vertical shaft II which may be mounted stationarlly or 45 in a truck IT. as shown in Fig. 1. Rotating power is transmitted to the device through a belt pulley II or any other suitable drive. According to the invention, the disc IS is provided at its periphery with a multiplicity of 50 thin metal wires II extending substantially ra dially of the disc and lying flush with the top surface thereof, forming a kind of aureola sur rounding the disc. In the form illustrated In Figs. 2 and 3 the 66 MTC 017083 2 9,104,787 wires II are fastened to the upper edge of a metal ring II encircling the centrifuging disc IS. According to Pig. 4 the disc IS has a central projection II hooded by a metal cap IS to which S the wires II are attached. With the embodiment according to Pig. 5, the cylindrical armature II holding the disc IS has fitted on Its upper margin a metallic border ring IS of Inverted U-shape the surface of which lies 10 flush with the surface of the disc IS. The wires II are clamped with their inner ends between the disc and the border ring and fastened to the latter. According to the modification Illustrated by 1S Fig. 6, the disc IS Is formed in one piece with a hollow stub-shaft II and Is seated at the lower end of this shaft. The wires II are fastened di rectly to the disc IS. The stub-shaft Is coupled by the armature II with the driving shaft II 20 which is likewise hollow. Thus a continuous channel IS Is formed In the shafts II and 14 through which air or another medium may be admitted. The molten mass Is supplied to the disc IS by a chute II. 28 The fibers produced by the centrifuging de vices are designated by the numerals IT in Figs. 1 and 6. Having thus described my invention, what I claim as new and desire to secure by Letters 30 Patent Is: 1. A method of producing fibers from molten glass, slag and the like meltable materials, con sisting in delivering a thin stream of molten material onto the surface of a disc-like body, 38 imparting high-speed rotation to this body and thereby causing the supplied molten mass to be divided Into small particles and thrown off the disc by centrifugal action, passing the divided mass as it leaves the disc surface onto another 41 surface contiguous and flush with the former and formed by a multiplicity of thin linear members fast to and surrounding the disc like an aureola, the mass particles thrown off the disc being guided along and subjected to further subdivision 40 by the said members so as to yield fibers of greatest fineness. 2. A centrifuging device for use in the produc tion of fibers from glass, slag and the like melt able material, comprising a dlsc-llke body having BO attached to its periphery In one plane with Its top surface a multiplicity of fine wires of highly heat-resistant metal extending substantially ra dially from the disc periphery and surrounding same like an aureola. oo 3. A centrifuging device for use In the produc tion of fibers from glass, slag and the like melt able materials, comprising a dlsc-llke body, a central projection on the top surface of this body, a cap of highly heat-resistant metal covering the said projection and thin wires of highly heat- resistant metal fastened to the periphery of the said cap so as to extend substantially radially therefrom in the plane of the top surface of the cap. 4. A centrifuging device for use In the produc- 10 tlon of fibers from glass, slag and the like melt able materials, comprising a dlsc-llke body, a cylindrical armature for holding this body, a border ring of highly heat-resistant metal on the upper edge of the said armature contiguous with IS the top surface of the disc, and a multiplicity of thin wires of highly heat-resistant metal fas tened on the said border ring and extending sub stantially radially relative to the disc and sub stantially in the plane of the top surface of the 30 dlsc-llke body. 5. A centrifuging device for use In the produc tion of fibers from glass, slag and the like melt able materials, comprising a vertically disposed shaft, a disc formed at the lower end of this shaft 33 in one piece therewith and a multiplicity of thin .. wires of highly heat-resistant metal fastened directly to the periphery of the said disc and extending substantially radially thereof In a plane level with the upper surface of the disc. 30 6. In an apparatus for producing fibers from glass, slag and the like meltable materials, In combination a container for holding a supply of molten material, an outlet In this container wherethrough to discharge a stream of the 35 molten material, a rapidly rotating dlsc-llke body of refractory material below the outlet whereon to deliver the stream of molten material and a multiplicity of fine wires of highly heat-resistant metal extending substantially radially from the 40 periphery of the disc and In the plane of the top surface of the disc. 7. A centrifuging device for the manufacture of fibers from glass, slag and the like meltable materials, comprising a dlsc-llke body, a ring of 45 highly heat-resistant metal surrounding such body at the top thereof, such ring being coaxial with the body and having the inner dimension thereof corresponding substantially to the outer dimension of the upper part of said body, and a 50 multiplicity of fine wires of highly heat-resistant metal fastened to the said ring substantially ra dially thereof in a plane level with the top sur face of the body. LEOPOLDO SANCHEZ VELLO. 58 MTC 017084