EP0575403B1 - Gluestruempfe - Google Patents
Gluestruempfe Download PDFInfo
- Publication number
- EP0575403B1 EP0575403B1 EP92906280A EP92906280A EP0575403B1 EP 0575403 B1 EP0575403 B1 EP 0575403B1 EP 92906280 A EP92906280 A EP 92906280A EP 92906280 A EP92906280 A EP 92906280A EP 0575403 B1 EP0575403 B1 EP 0575403B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- mantle
- tie cord
- cord according
- binder
- tie
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21H—INCANDESCENT MANTLES; OTHER INCANDESCENT BODIES HEATED BY COMBUSTION
- F21H1/00—Incandescent mantles; Selection of imbibition liquids therefor
- F21H1/04—Suspension devices therefor
Definitions
- a mantle for these purposes consists essentially of a bag which is secured over a gas supply jet, combustion taking place on the surface of the mantle, the structure of which is raised to white hot temperatures very rapidly.
- Mantles are made from fibres which have good resistance to high temperatures, such as asbestos or glass. It will be noted that structural integrity is important, although it is normally accepted that after its first use, a mantle becomes extremely brittle and/or fragile. However, at the time of installation it is a loose, floppy bag and it is usual to provide a tie yarn in the form of a drawcord which can be used to secure the mantle in place.
- the traditional material for the tie yarn was an asbestos based cord.
- Substitutes for asbestos have included glass fibre yarns with an outer layer of cotton. However, these have poor knot strength and poor performance at elevated temperatures.
- a continuous filament glass fibre yarn with organic fibres such as acrylic, viscose and aramid staple fibres bonded to it in a generally parallel arrangement has also been tried, the organic component burning off in service to leave the glass core.
- knot strength is still a problem and aramid fibres are costly.
- a mantle tie cord comprises a continuous multi-filament core of refractory fibre with a cellulosic outer sheath of staple fibres and a continuous filament yarn.
- Refractory fibre for present purposes means a fibre which will not ordinarily fuse together at the working temperature of a naturally aspirated liquified petroleum gas (LPG) flame. Working temperatures in the range of about 750°C to about 900°C are typical of such LPG flames.
- a particularly preferred refractory fibre is silica.
- the staple fibres and the continuous filament yarn are preferably of regenerated cellulose; they are applied to the refractory fibre yarn by winding and/or wrapping them onto the refractory fibre core, for example by use of the DREF spinning process.
- the cord may be treated with a binder to reduce hairiness.
- the binder may be an aqueous polyvinyl acetate ethylene oxide copolymer solution or dispersion.
- Viscose is a preferred regenerated cellulose material.
- the tie cord of this invention can be coloured, for example by including a dyestuff in the binder, though it is also possible to dye the staple fibres. Colouring the tie cord facilitates its identification by a user.
- tie cord of this invention has sufficient integrity to hold a mantle in place until its shape is effectively fixed by the heat developed in use, even though the regenerated cellulose carbonises to a very weak or even non-existent state after a fairly short time.
- a continuous filament core of two-ply 68 tex silica yarn was wrapped with 68 tex staple viscose (38 mm 1.7 dtex fibres) and a 122 tex continuous filament viscose strand to form a sheath.
- the wrapping was carried out on a DREF spinning machine.
- a polyvinyl acetate binder containing a dye was applied to the finished cord, which had the following composition by weight.
- the cord thus produced had good handling properties and could be knotted without significant damage to the silica.
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Yarns And Mechanical Finishing Of Yarns Or Ropes (AREA)
- Glass Compositions (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Adhesives Or Adhesive Processes (AREA)
Claims (7)
- Mantelbindeschnur mit einem kontinuierlichen Multifilament-Kern aus feuerfester Faser mit einer Zellulose-Außenhülle aus Stapelfasern und einem kontinuierlichen Filamentgarn.
- Mantelbindeschnur nach Anspruch 1, wobei die feuerfeste Faser Silika ist.
- Mantelbindeschnur nach Anspruch 1 oder Anspruch 2, wobei die Hülle regenerierte Zellulosefasern aufweist.
- Mantelbindeschnur nach Anspruch 3, wobei die regenerierte Zellulose Viskose ist.
- Mantelbindeschnur nach einem der Ansprüche 1 bis 4, ferner mit einer Bindemittelzusammensetzung.
- Mantelbindeschnur nach Anspruch 5, wobei das Bindemittel eine Polyvinylacetat-Zusammensetzung oder Stärke oder Acrylpolymer-Dispersionen sind.
- Mantelbindeschnur nach Anspruch 5 oder Anspruch 6, wobei das Bindemittel ferner einen Farbstoff aufweist.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB9105396 | 1991-03-14 | ||
GB919105396A GB9105396D0 (en) | 1991-03-14 | 1991-03-14 | Improvements in and relating to incandescent mantles |
PCT/GB1992/000432 WO1992016788A1 (en) | 1991-03-14 | 1992-03-11 | Improvements in and relating to incandescent mantles |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0575403A1 EP0575403A1 (de) | 1993-12-29 |
EP0575403B1 true EP0575403B1 (de) | 1995-11-15 |
Family
ID=10691560
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92906280A Expired - Lifetime EP0575403B1 (de) | 1991-03-14 | 1992-03-11 | Gluestruempfe |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP0575403B1 (de) |
AT (1) | ATE130422T1 (de) |
DE (1) | DE69206134T2 (de) |
ES (1) | ES2079859T3 (de) |
GB (2) | GB9105396D0 (de) |
WO (1) | WO1992016788A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10140654A1 (de) * | 2001-08-24 | 2003-03-06 | Georg Issakides | Bindegarn für Glühkörper |
ATE294883T1 (de) | 2001-08-24 | 2005-05-15 | Georg Issakides | Bindegarn für glühkörper und dessen verwendung |
DE10159530A1 (de) * | 2001-12-05 | 2003-06-26 | Georg Issakides | Bindegarn für Glühkörper und Glühkörper |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB191318173A (en) * | 1913-08-09 | 1914-01-08 | Jacob Ignot Robin | Improvements in or relating to Incandescent Gas Mantles. |
FR906247A (fr) * | 1942-11-28 | 1945-12-27 | Auergesellschaft Ag | Fil d'attache pour manchons à incandescence |
FR2306957A1 (fr) * | 1975-04-09 | 1976-11-05 | Frenzelit Asbestwerk | Matieres d'isolement et d'etancheite |
US4381639A (en) * | 1980-06-19 | 1983-05-03 | Record Industrial Company | Sheath-core yarn for severe thermal protecting fabrics and method therefor |
US4863799A (en) * | 1986-05-22 | 1989-09-05 | Hoechst Celanese Corp. | Sheath core spun organosilicon preceramic fibers and processes for production |
-
1991
- 1991-03-14 GB GB919105396A patent/GB9105396D0/en active Pending
-
1992
- 1992-03-11 GB GB9205214A patent/GB2253640B/en not_active Expired - Fee Related
- 1992-03-11 DE DE69206134T patent/DE69206134T2/de not_active Expired - Fee Related
- 1992-03-11 AT AT92906280T patent/ATE130422T1/de not_active IP Right Cessation
- 1992-03-11 EP EP92906280A patent/EP0575403B1/de not_active Expired - Lifetime
- 1992-03-11 WO PCT/GB1992/000432 patent/WO1992016788A1/en active IP Right Grant
- 1992-03-11 ES ES92906280T patent/ES2079859T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
ATE130422T1 (de) | 1995-12-15 |
GB9205214D0 (en) | 1992-04-22 |
DE69206134T2 (de) | 1996-05-09 |
GB9105396D0 (en) | 1991-05-01 |
EP0575403A1 (de) | 1993-12-29 |
GB2253640B (en) | 1994-08-24 |
WO1992016788A1 (en) | 1992-10-01 |
ES2079859T3 (es) | 1996-01-16 |
GB2253640A (en) | 1992-09-16 |
DE69206134D1 (en) | 1995-12-21 |
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