CA1128758A - Stream feeder apparatus - Google Patents
Stream feeder apparatusInfo
- Publication number
- CA1128758A CA1128758A CA319,043A CA319043A CA1128758A CA 1128758 A CA1128758 A CA 1128758A CA 319043 A CA319043 A CA 319043A CA 1128758 A CA1128758 A CA 1128758A
- Authority
- CA
- Canada
- Prior art keywords
- bottom wall
- wire
- sidewall
- sidewalls
- extending
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
- C03B37/083—Nozzles; Bushing nozzle plates
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B37/00—Manufacture or treatment of flakes, fibres, or filaments from softened glass, minerals, or slags
- C03B37/08—Bushings, e.g. construction, bushing reinforcement means; Spinnerettes; Nozzles; Nozzle plates
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Vertical, Hearth, Or Arc Furnaces (AREA)
- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
- Continuous Casting (AREA)
- Inorganic Fibers (AREA)
Abstract
ABSTRACT
A feeder is provided for supplying molten mineral material in the form of streams. The feeder comprises upwardly extending sidewalls, a bottom wall extending between the sidewalls, the bottom wall having a plurality of orifices through which molten mineral material is supplied in the form of streams, and bottom wall supporting means comprising a member extending between the bottom wall and a first sidewall, the member being generally in spaced apart relationship with the bottom wall and the sidewall except at the end regions of the member.
A feeder is provided for supplying molten mineral material in the form of streams. The feeder comprises upwardly extending sidewalls, a bottom wall extending between the sidewalls, the bottom wall having a plurality of orifices through which molten mineral material is supplied in the form of streams, and bottom wall supporting means comprising a member extending between the bottom wall and a first sidewall, the member being generally in spaced apart relationship with the bottom wall and the sidewall except at the end regions of the member.
Description
~Z~375~
This invention relates to apparatus for melting hea-t soE-tenable material and more specifically -to an in-ternal suppor-t-ing means for stream feeders through which streams oE molten mineral material, such as glass, are supplied for a-ttenua-tion into Fibers.
There has been a trend in recent years toward making a larger number of filaments from a single stream feeder. This trend has resulted in larger stream feeders with correspondingly larger bottom walls to accommodate the larger number of orifices or tips from which streams are supplied to be attenuated into fibers. The larger bottom walls are subjected to a greater overall load and tend to sag or creep sooner than bottom walls having smaller areas.
Attempts have been made heretofore to overcome this problem of creep or sag through special bushing designs and through supports under the bushing bottoms. However, such attempts have met with limited success, often being ineffective in reducing excessive creep or sag to extend the bushing life appreciably. Such supports have also tended to interfere with the heat pattern of the bushing bottom or have physically interfered with the attenuation of fibers, resulting in a tendency to disrupt the fiber forming operation. Other attempts to reduce sag have required an extensive amount of extremely expensive alloy of which the bushings are made. Further attempts to reduce sag have been made by extending hollow elongate members having refactory rods therein between upright walls of the stream feeder above the bottom wall and connecting the elongate members to the bottom plate by welding gussets or plates to the elongate members and the bottom wall of the stream feeder.
37~
The present~invention compxises a feeder ~or supplying molten mineral material in the form o~ streams. The feeder comprises upwardly ex-tending walls, a bottom wall extending between the sidewalls, the bottom wall haviny a plurality of orifices through which molten mineral material is supplied in the form of streams, and bottom wall supporting means comprising a member extending between the bottom wall and a first sidewall, the member being generally in spaced apart relationship with the bottom wall and the sidewalls except at the end regions of the member.
It is an object of the present invention to provide stream feeders for high temperature, heat-sof-tenable materials.
Another object of the present invention is to provide a stream feeder with a support for the stream feeder bottom wall which does not interfere with the fiber forming operation.
A further object of the invention is to provide a stream feeder with an internal bottom wall support which reduces the tendency of the bottom wall to sag or creep.
These and other objects of the invention will become apparent as the invention is described hereinafter in detail with reference to the accompanying drawings.
According to one aspect of the present invention a feeder for supplying molten mineral material in the form of streams comprising:
aJ upwardly extending sidewalls;
b) a bottom wall extending between the sidewalls, the bottom wall having a plurality of orifices through which molten mineral material is supplied in the form of streams, and c) bottom wall supporting means comprisiny member extending between the bottom wall and a first sidewall, the ~L~Z875~
member being generally in spaced apart relationship with the bottom wall and the sidewall e~cept at the end regions of the member.
Embodiments of the invention will now be described wi-kh reference to the accompanying drawings in which:
Figure 1 is a front elevational view of a general layout of a fiber forming operation in accordance with the present invention.
Figure 2 is a partial ~ide elevational view of a stream feeder in accordance with the present invention.
Figure 3 is a cross-sectional view taken substantially along the line 3-3 of Figure 2.
Figure 4 is a cross-sectional view of another stream feeder in accordance with the present invention.
~ igure 5 is a cross-sectional view of another stream feeder in accordance with the present invention.
Before explaining the present invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawings, since the invention is capable of other embodiments and of being practiced or carried out in various ways to produce elements for other end uses. Also, it is to be understood that the phrasiology employed herein is for the purpose of description and not of limitation.
Referring now more particularly to the drawings, Figure 1 illus~rates a fiber forming operation. Mineral material, such as glass, is maintained in a molten condition in the stream feeder assembly 10 from which a plurality of streams of material is emitted from the orifices in the feeder for attenua-tion into fibers 4. The fibers are gathered into a strand 7 by drawing them ~Z87S~
over a gathering shoe 6 while sizing is applied to the fibers by applicator 5 which supplies a sizing to each filament above ~he point of collection at the gathering member 6. The strand 7 formed of the gathered fibers is packaged by a winder 8 which traverses the strand by a suitable traversing device such as a spiral wire traverse ~ and which collects the strand on a rotat-ing collet 3 into a package 2.
Figures 2 and 3 illustrate a stream feeder assembly 10 generally as shown in Figure 1. The stream feeder is basically a boxed-shaped chamber made of high temperature resistant alloys such as platinum, rhodium, or the like. As illustrated in Figures 2 and 3, the feeder assembly comprises upwardly extending sidewalls and a bottom wall extending between the sidewalls. As shown, at least two of the sidewalls can ha~e electrical terminals 24 and 26 extending therefrom. Electrical bus bars (not shown) can be connected to the terminals for supplying current through the feeder. The feede~ can thus be heated by its own electrical resistance. The terminal sidewalls and the other sidewalls 15 and ~-17 are connected together and with the bottom wall 18 to form the the box-like stream feeder.
The upper portion of the sidewalls form a flange 22 extending around the stream feeder. The stream feeder is mounted in a frame 14 for attachment of the stream feeder to the glass supply (not shown). Deposited between the sidewalls of the stream feeder and the mounting frame is a ref~actory material 12 which minimizes heat loss from the glass in the stream feeder and which supports the sidewalls and flange of the stream feeder.
The bottom wall 18 can be adapted with a plurality of tips through which the molten mineral material is supplied in the form of streams. Alternately, the bottom wall can be tipless, ~L28~5~3 -that is, can have a plurality of orifices penetrating there-through -through which the mol-ten glass is withdrawn, In accordance with theinvention, a stream feeder bot~om wall is supported to reduce sag and to -therefore extend the lie of a stream feeder. A member or p~urality of membe~s extend between the bottom wall and the sidewalls to support the bottom wall. These members are generally in spaced apart relationship with the bottom wall and sidewalls except at the end regions of the members.
As shown in Figures 2 and 3 a plurality of wires extend between bottom wall 18 and sidewalls 16 and 17. In this embodi-ment, one end of wire 30 is connected to the mid region of the bottom wall 18 by any suitable means, preferably by weld 34.
Wire 30 extends upwardly at an oblique angle from the bottom wall and passes through sidewall 16 where the other end of the wire 38 is connected or anchored in refractory material 12.
Similarly, one end of wire 32 is attached to the mid region of the bottom wall by any suitable means, preferably by weld 36.
Wire 32 extends upwardly at an oblique angle from the bottom wall and passes through sidewall 17 where the other end of the wire 40 is connected or anchored in the refractory material. As shown, there is a plurality of such wires 30 and 32. These wires support the stream feeder in such a manner that they do not interfere with the heat pattern of the stream feeder nor do they interfere with the fiber forming operation in any manner. ~s the bottom wall tends to sag or creep during operation of the stream feeder, the support wires are placed in tension and restrict the bottom wall fromsagging or creeping. The support wires 30 and 32 are shown to have a circular cross section, but it is understood that the cross section of the wires or members can be of any ~128758 configuration. The members are shown as wires comprising a single strand oE material. The wires can be of a ~roup o strands bundled or twisted together to function as a unit s~ch as a cable. Also, the members can be rods or other linear or elongated elements. ~ires made of a high temperature res:istan-t platinum and rhodium alloy have been found to operate satisfact-orily. However, other metallic or non-metallic members can be used. Wires having a circular cross section and a diameter of 60 mils to 125 mils have been found to operate satisfactorily.
However, wires having either larger or smaller diameters can also be used. The number, and size, of the wires needed for a particular stream feeder can be determined by calculating the bottom wall stressing factors such as the load of the glass on the bottom wall of the stream feeder and the forming tension caused by the attenuation of the streams of glass into fibers.
~ igure 4 illustrates another stream feeder according to the principles of the invention. Stream feeder 50 comprises upwardly extending sidewalls 52 and 54 connected to bottom wall 56. Tips 58 extend from the bottom wall for supplying molten mineral material in the form of streams therefrom. The stream feeder is mounted in frame 64 and refractory material 62 is disposed between the sidewalls and the frame. Flange 60 is an extension of the upper portion of the upwardly extending sidewalls. Support wires 68 and 70 can be connected directly to bottom wall 56. Or, as shown, a plate member 66 can be connected to the bottom wall 56 with wires 68 and 70 being connected to the plate member at welds 72 and 74, respectively.
The other end of wire 68 is connected directly to in the region of the flange portion of wall 52 at weld 76~ The other end of the wire 70 is connected directly to the region of the flange ~Z~
portion of wall 54 at weld 78. Although only two wires are shown in Figure 4, it is understood that a plurality of wires extending down the length of the ~eeder can be used. In operation, when the bottom wall begins to sag or creep, -the support wires are placed in tension, and thus, the wires restrict the sagging or creeping of the bottom wall.
Figure 5 illustrates another embodiment of the invention. Stream feeder 80 comprises upwardly extending side-walls 82 and 84 connected to bottom wall 90. The upper portions of the sidewalls form flange 85. In this embodiment, the tipless bottom wall has a plurality of orifices through which molten mineral material is supplied in the form of streams. The stream feeder is mounted in frame 93. Refractory material 92 is disposed between the frame and the sidewalls. One end of support wire 94 is attached to a side region of the bottom wall by any suitable means such as weld 99. The wire extends verti-cally from the bottom wall. The other end of the support wire is attached directly to a vertical portion 86 of the upwardly extending sidewall 82 by any suitable means such as weld 97.
Similarly one end of support wire 96 is attached to a side region of the bottom wall 90 by any suitable means such as weld 100.
The wire extends vertically from the bottom wall. The other end of the support wire is attached directly to a vertically extending portion 88 of the upwardly extending sidewall 84 by any suitable means such as weld 98. Although only two wires are shown in Figure 5, it is understood that a plurality of wires can be used. During operation of the s-tream feeder, when the bottom wall begins to sag or creep, the support wires are placed in tension and, thus, restrict the creeping or sagging of the bottom wall.
~28~S~
It will be evident from the foregoing -that various modifications can be made to this inven-tion. Such, however, are considered to be within the scope oE the invention a~ described in the following claims.
This invention relates to apparatus for melting hea-t soE-tenable material and more specifically -to an in-ternal suppor-t-ing means for stream feeders through which streams oE molten mineral material, such as glass, are supplied for a-ttenua-tion into Fibers.
There has been a trend in recent years toward making a larger number of filaments from a single stream feeder. This trend has resulted in larger stream feeders with correspondingly larger bottom walls to accommodate the larger number of orifices or tips from which streams are supplied to be attenuated into fibers. The larger bottom walls are subjected to a greater overall load and tend to sag or creep sooner than bottom walls having smaller areas.
Attempts have been made heretofore to overcome this problem of creep or sag through special bushing designs and through supports under the bushing bottoms. However, such attempts have met with limited success, often being ineffective in reducing excessive creep or sag to extend the bushing life appreciably. Such supports have also tended to interfere with the heat pattern of the bushing bottom or have physically interfered with the attenuation of fibers, resulting in a tendency to disrupt the fiber forming operation. Other attempts to reduce sag have required an extensive amount of extremely expensive alloy of which the bushings are made. Further attempts to reduce sag have been made by extending hollow elongate members having refactory rods therein between upright walls of the stream feeder above the bottom wall and connecting the elongate members to the bottom plate by welding gussets or plates to the elongate members and the bottom wall of the stream feeder.
37~
The present~invention compxises a feeder ~or supplying molten mineral material in the form o~ streams. The feeder comprises upwardly ex-tending walls, a bottom wall extending between the sidewalls, the bottom wall haviny a plurality of orifices through which molten mineral material is supplied in the form of streams, and bottom wall supporting means comprising a member extending between the bottom wall and a first sidewall, the member being generally in spaced apart relationship with the bottom wall and the sidewalls except at the end regions of the member.
It is an object of the present invention to provide stream feeders for high temperature, heat-sof-tenable materials.
Another object of the present invention is to provide a stream feeder with a support for the stream feeder bottom wall which does not interfere with the fiber forming operation.
A further object of the invention is to provide a stream feeder with an internal bottom wall support which reduces the tendency of the bottom wall to sag or creep.
These and other objects of the invention will become apparent as the invention is described hereinafter in detail with reference to the accompanying drawings.
According to one aspect of the present invention a feeder for supplying molten mineral material in the form of streams comprising:
aJ upwardly extending sidewalls;
b) a bottom wall extending between the sidewalls, the bottom wall having a plurality of orifices through which molten mineral material is supplied in the form of streams, and c) bottom wall supporting means comprisiny member extending between the bottom wall and a first sidewall, the ~L~Z875~
member being generally in spaced apart relationship with the bottom wall and the sidewall e~cept at the end regions of the member.
Embodiments of the invention will now be described wi-kh reference to the accompanying drawings in which:
Figure 1 is a front elevational view of a general layout of a fiber forming operation in accordance with the present invention.
Figure 2 is a partial ~ide elevational view of a stream feeder in accordance with the present invention.
Figure 3 is a cross-sectional view taken substantially along the line 3-3 of Figure 2.
Figure 4 is a cross-sectional view of another stream feeder in accordance with the present invention.
~ igure 5 is a cross-sectional view of another stream feeder in accordance with the present invention.
Before explaining the present invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawings, since the invention is capable of other embodiments and of being practiced or carried out in various ways to produce elements for other end uses. Also, it is to be understood that the phrasiology employed herein is for the purpose of description and not of limitation.
Referring now more particularly to the drawings, Figure 1 illus~rates a fiber forming operation. Mineral material, such as glass, is maintained in a molten condition in the stream feeder assembly 10 from which a plurality of streams of material is emitted from the orifices in the feeder for attenua-tion into fibers 4. The fibers are gathered into a strand 7 by drawing them ~Z87S~
over a gathering shoe 6 while sizing is applied to the fibers by applicator 5 which supplies a sizing to each filament above ~he point of collection at the gathering member 6. The strand 7 formed of the gathered fibers is packaged by a winder 8 which traverses the strand by a suitable traversing device such as a spiral wire traverse ~ and which collects the strand on a rotat-ing collet 3 into a package 2.
Figures 2 and 3 illustrate a stream feeder assembly 10 generally as shown in Figure 1. The stream feeder is basically a boxed-shaped chamber made of high temperature resistant alloys such as platinum, rhodium, or the like. As illustrated in Figures 2 and 3, the feeder assembly comprises upwardly extending sidewalls and a bottom wall extending between the sidewalls. As shown, at least two of the sidewalls can ha~e electrical terminals 24 and 26 extending therefrom. Electrical bus bars (not shown) can be connected to the terminals for supplying current through the feeder. The feede~ can thus be heated by its own electrical resistance. The terminal sidewalls and the other sidewalls 15 and ~-17 are connected together and with the bottom wall 18 to form the the box-like stream feeder.
The upper portion of the sidewalls form a flange 22 extending around the stream feeder. The stream feeder is mounted in a frame 14 for attachment of the stream feeder to the glass supply (not shown). Deposited between the sidewalls of the stream feeder and the mounting frame is a ref~actory material 12 which minimizes heat loss from the glass in the stream feeder and which supports the sidewalls and flange of the stream feeder.
The bottom wall 18 can be adapted with a plurality of tips through which the molten mineral material is supplied in the form of streams. Alternately, the bottom wall can be tipless, ~L28~5~3 -that is, can have a plurality of orifices penetrating there-through -through which the mol-ten glass is withdrawn, In accordance with theinvention, a stream feeder bot~om wall is supported to reduce sag and to -therefore extend the lie of a stream feeder. A member or p~urality of membe~s extend between the bottom wall and the sidewalls to support the bottom wall. These members are generally in spaced apart relationship with the bottom wall and sidewalls except at the end regions of the members.
As shown in Figures 2 and 3 a plurality of wires extend between bottom wall 18 and sidewalls 16 and 17. In this embodi-ment, one end of wire 30 is connected to the mid region of the bottom wall 18 by any suitable means, preferably by weld 34.
Wire 30 extends upwardly at an oblique angle from the bottom wall and passes through sidewall 16 where the other end of the wire 38 is connected or anchored in refractory material 12.
Similarly, one end of wire 32 is attached to the mid region of the bottom wall by any suitable means, preferably by weld 36.
Wire 32 extends upwardly at an oblique angle from the bottom wall and passes through sidewall 17 where the other end of the wire 40 is connected or anchored in the refractory material. As shown, there is a plurality of such wires 30 and 32. These wires support the stream feeder in such a manner that they do not interfere with the heat pattern of the stream feeder nor do they interfere with the fiber forming operation in any manner. ~s the bottom wall tends to sag or creep during operation of the stream feeder, the support wires are placed in tension and restrict the bottom wall fromsagging or creeping. The support wires 30 and 32 are shown to have a circular cross section, but it is understood that the cross section of the wires or members can be of any ~128758 configuration. The members are shown as wires comprising a single strand oE material. The wires can be of a ~roup o strands bundled or twisted together to function as a unit s~ch as a cable. Also, the members can be rods or other linear or elongated elements. ~ires made of a high temperature res:istan-t platinum and rhodium alloy have been found to operate satisfact-orily. However, other metallic or non-metallic members can be used. Wires having a circular cross section and a diameter of 60 mils to 125 mils have been found to operate satisfactorily.
However, wires having either larger or smaller diameters can also be used. The number, and size, of the wires needed for a particular stream feeder can be determined by calculating the bottom wall stressing factors such as the load of the glass on the bottom wall of the stream feeder and the forming tension caused by the attenuation of the streams of glass into fibers.
~ igure 4 illustrates another stream feeder according to the principles of the invention. Stream feeder 50 comprises upwardly extending sidewalls 52 and 54 connected to bottom wall 56. Tips 58 extend from the bottom wall for supplying molten mineral material in the form of streams therefrom. The stream feeder is mounted in frame 64 and refractory material 62 is disposed between the sidewalls and the frame. Flange 60 is an extension of the upper portion of the upwardly extending sidewalls. Support wires 68 and 70 can be connected directly to bottom wall 56. Or, as shown, a plate member 66 can be connected to the bottom wall 56 with wires 68 and 70 being connected to the plate member at welds 72 and 74, respectively.
The other end of wire 68 is connected directly to in the region of the flange portion of wall 52 at weld 76~ The other end of the wire 70 is connected directly to the region of the flange ~Z~
portion of wall 54 at weld 78. Although only two wires are shown in Figure 4, it is understood that a plurality of wires extending down the length of the ~eeder can be used. In operation, when the bottom wall begins to sag or creep, -the support wires are placed in tension, and thus, the wires restrict the sagging or creeping of the bottom wall.
Figure 5 illustrates another embodiment of the invention. Stream feeder 80 comprises upwardly extending side-walls 82 and 84 connected to bottom wall 90. The upper portions of the sidewalls form flange 85. In this embodiment, the tipless bottom wall has a plurality of orifices through which molten mineral material is supplied in the form of streams. The stream feeder is mounted in frame 93. Refractory material 92 is disposed between the frame and the sidewalls. One end of support wire 94 is attached to a side region of the bottom wall by any suitable means such as weld 99. The wire extends verti-cally from the bottom wall. The other end of the support wire is attached directly to a vertical portion 86 of the upwardly extending sidewall 82 by any suitable means such as weld 97.
Similarly one end of support wire 96 is attached to a side region of the bottom wall 90 by any suitable means such as weld 100.
The wire extends vertically from the bottom wall. The other end of the support wire is attached directly to a vertically extending portion 88 of the upwardly extending sidewall 84 by any suitable means such as weld 98. Although only two wires are shown in Figure 5, it is understood that a plurality of wires can be used. During operation of the s-tream feeder, when the bottom wall begins to sag or creep, the support wires are placed in tension and, thus, restrict the creeping or sagging of the bottom wall.
~28~S~
It will be evident from the foregoing -that various modifications can be made to this inven-tion. Such, however, are considered to be within the scope oE the invention a~ described in the following claims.
Claims (17)
1. A feeder for containing molten mineral material from which fibers can be attenuated comprising:
a) upwardly extending sidewalls;
b) a bottom wall extending between the sidewalls, the bottom wall having a plurality of orifices through which molten mineral material can flow for attenuation into fibers; and c) bottom wall supporting means comprising a wire extending between the bottom wall and a first sidewall, the wire being generally in spaced apart relationship with the bottom wall and the side wall except at the end regions of the wire.
a) upwardly extending sidewalls;
b) a bottom wall extending between the sidewalls, the bottom wall having a plurality of orifices through which molten mineral material can flow for attenuation into fibers; and c) bottom wall supporting means comprising a wire extending between the bottom wall and a first sidewall, the wire being generally in spaced apart relationship with the bottom wall and the side wall except at the end regions of the wire.
2. The apparatus of claim 1 wherein the wire is of a metallic material.
3. The apparatus of claim 2 wherein the wire is of a high temperature resistant platinum and rhodium alloy.
4. The apparatus of claim 1 wherein the wire is a group of strands bundled together to form a cable.
5. The apparatus of claim 1 wherein the wire is con-nected to the mid-region of the bottom wall.
6. The apparatus of claim 1 wherein the wire extends obliquely from the bottom wall.
7. The apparatus of claim 1 wherein the wire ter-minates at the first side and is connected directly to the first sidewall.
8. The apparatus of claim 1 wherein an upper portion of the first sidewall forms a flange.
9. The apparatus of claim 8 wherein the wire is con-nected to the first sidewall at the flange.
10. The apparatus of claim 1 wherein a material ex-tends along a portion of the outside surface of the sidewalls and is adapted to support the sidewalls.
11. The apparatus of claim 10, wherein the wire ex-tends through the first sidewall and is connected to the material.
12. The apparatus of claim 1 wherein the bottom wall supporting means comprises a plurality of wires extending be-tween the bottom wall and the first sidewall.
13. The apparatus of claim 1 wherein the bottom wall supporting means comprises a wire extending between the bottom wall and a second sidewall.
14. The apparatus of claim 1 wherein the bottom wall is adapted with a plurality of tips through which the molten mineral material can flow for attenuation into fibers.
15. A feeder for containing molten mineral material from which fibers can be attenuated comprising:
a) upwardly extending sidewalls;
b) a bottom wall extending between the sidewalls, the bottom wall having a plurality of orifices through which molten mineral material can flow for attenuation into fibers, and c) bottom wall supporting means comprising a member extending obliquely between the bottom wall and a first sidewall, the member being generally in spaced apart relationship with the bottom wall and the sidewall except at the end regions of the member.
a) upwardly extending sidewalls;
b) a bottom wall extending between the sidewalls, the bottom wall having a plurality of orifices through which molten mineral material can flow for attenuation into fibers, and c) bottom wall supporting means comprising a member extending obliquely between the bottom wall and a first sidewall, the member being generally in spaced apart relationship with the bottom wall and the sidewall except at the end regions of the member.
16. The apparatus of claim 15 wherein an upper por-tion of the first sidewall forms a flange and the member is connected to the first sidewall at the flange.
17. The apparatus of claim 15 wherein the member is a wire.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US87525278A | 1978-02-06 | 1978-02-06 | |
| US875,252 | 1978-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1128758A true CA1128758A (en) | 1982-08-03 |
Family
ID=25365462
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA319,043A Expired CA1128758A (en) | 1978-02-06 | 1979-01-03 | Stream feeder apparatus |
Country Status (15)
| Country | Link |
|---|---|
| JP (1) | JPS54112220A (en) |
| AU (1) | AU520260B2 (en) |
| BE (1) | BE873324A (en) |
| BR (1) | BR7900642A (en) |
| CA (1) | CA1128758A (en) |
| DE (1) | DE2903880A1 (en) |
| FI (1) | FI65768C (en) |
| FR (1) | FR2416202A1 (en) |
| GB (1) | GB2013651B (en) |
| IT (1) | IT1110112B (en) |
| MX (1) | MX148186A (en) |
| NL (1) | NL7812053A (en) |
| NO (1) | NO150195C (en) |
| SE (1) | SE437825B (en) |
| ZA (1) | ZA786825B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6813909B2 (en) * | 2001-06-27 | 2004-11-09 | Owens Corning Fiberglas Technology, Inc. | Reinforcement member for a bushing tip plate and related method |
| DE102009051067A1 (en) * | 2009-10-28 | 2011-05-05 | Umicore Ag & Co. Kg | Jet assembly |
| JP6273812B2 (en) * | 2013-12-12 | 2018-02-07 | 日本電気硝子株式会社 | Bushing, glass fiber manufacturing apparatus and glass fiber manufacturing method |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3920430A (en) * | 1973-10-09 | 1975-11-18 | Owens Corning Fiberglass Corp | Support for bushing for containing molten mineral material |
| JPS536626A (en) * | 1976-07-07 | 1978-01-21 | Nitto Boseki Co Ltd | Bushings for spinning glass fibers |
-
1978
- 1978-12-05 ZA ZA00786825A patent/ZA786825B/en unknown
- 1978-12-11 NL NL7812053A patent/NL7812053A/en not_active Application Discontinuation
- 1978-12-15 GB GB7848688A patent/GB2013651B/en not_active Expired
-
1979
- 1979-01-03 CA CA319,043A patent/CA1128758A/en not_active Expired
- 1979-01-05 BE BE192774A patent/BE873324A/en not_active IP Right Cessation
- 1979-01-05 FR FR7900222A patent/FR2416202A1/en not_active Withdrawn
- 1979-01-09 MX MX176233A patent/MX148186A/en unknown
- 1979-01-12 IT IT19253/79A patent/IT1110112B/en active
- 1979-01-25 JP JP766079A patent/JPS54112220A/en active Pending
- 1979-02-01 DE DE19792903880 patent/DE2903880A1/en not_active Withdrawn
- 1979-02-02 BR BR7900642A patent/BR7900642A/en unknown
- 1979-02-02 SE SE7900920A patent/SE437825B/en unknown
- 1979-02-05 NO NO790361A patent/NO150195C/en unknown
- 1979-02-05 AU AU43922/79A patent/AU520260B2/en not_active Ceased
- 1979-02-06 FI FI790383A patent/FI65768C/en not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| IT1110112B (en) | 1985-12-23 |
| FI65768C (en) | 1984-07-10 |
| NL7812053A (en) | 1979-08-08 |
| FI65768B (en) | 1984-03-30 |
| FI790383A (en) | 1979-08-07 |
| AU520260B2 (en) | 1982-01-21 |
| DE2903880A1 (en) | 1979-08-09 |
| SE7900920L (en) | 1979-08-07 |
| NO150195B (en) | 1984-05-28 |
| BE873324A (en) | 1979-05-02 |
| IT7919253A0 (en) | 1979-01-12 |
| AU4392279A (en) | 1979-08-16 |
| FR2416202A1 (en) | 1979-08-31 |
| NO790361L (en) | 1979-08-07 |
| GB2013651A (en) | 1979-08-15 |
| MX148186A (en) | 1983-03-24 |
| ZA786825B (en) | 1979-10-31 |
| GB2013651B (en) | 1982-06-03 |
| SE437825B (en) | 1985-03-18 |
| BR7900642A (en) | 1979-08-28 |
| NO150195C (en) | 1984-09-05 |
| JPS54112220A (en) | 1979-09-03 |
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