DK160596B - APPARATUS AND PROCEDURES FOR CURRENTING THE EXTRADUCTORY INSULATION layer of an electrical cable - Google Patents
APPARATUS AND PROCEDURES FOR CURRENTING THE EXTRADUCTORY INSULATION layer of an electrical cable Download PDFInfo
- Publication number
- DK160596B DK160596B DK102283A DK102283A DK160596B DK 160596 B DK160596 B DK 160596B DK 102283 A DK102283 A DK 102283A DK 102283 A DK102283 A DK 102283A DK 160596 B DK160596 B DK 160596B
- Authority
- DK
- Denmark
- Prior art keywords
- cable
- tube
- curing
- braking
- braking device
- Prior art date
Links
- 238000009413 insulation Methods 0.000 title claims description 15
- 238000000034 method Methods 0.000 title claims description 9
- 239000012530 fluid Substances 0.000 claims description 9
- 230000002706 hydrostatic effect Effects 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 7
- 230000003993 interaction Effects 0.000 claims 2
- 230000000087 stabilizing effect Effects 0.000 claims 1
- 238000007789 sealing Methods 0.000 description 8
- 238000001125 extrusion Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229920003052 natural elastomer Polymers 0.000 description 1
- 229920001194 natural rubber Polymers 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
- 238000004073 vulcanization Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/06—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam for articles of indefinite length
- B29C35/065—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam for articles of indefinite length in long tubular vessels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2021/00—Use of unspecified rubbers as moulding material
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Processes Specially Adapted For Manufacturing Cables (AREA)
- Extrusion Moulding Of Plastics Or The Like (AREA)
- Tension Adjustment In Filamentary Materials (AREA)
- Processing Of Terminals (AREA)
- Cable Accessories (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Bridges Or Land Bridges (AREA)
Description
DK 160596 BDK 160596 B
Opfindelsen angår et apparat og en fremgangsmåde til hærdning af et elektrisk kabels ekstruderende isolationslag, idet apparatet er af en art som angivet i krav 1's indledende del, og fremgangsmåden er af en art 5 som angivet i krav 6's indledende del.The invention relates to an apparatus and method for curing the extruding insulation layer of an electric cable, the apparatus being of a kind as defined in the preamble of claim 1, and the method being of a species 5 as defined in the preamble of claim 6.
Det er velkendt, at brugen af en sådan kædelinie-formet hærdningsindeslutning tillader, at kablets isolering bliver hærdet fra en relativt blød og plastisk tilstand, således som det kommer ud fra ekstruderingshove-10 det ved den ene ende af kædelinien, til en relativ fast og stiv tilstand ved den modsatte ende, uden at det er nødvendigt at bringe isolationen i berøring med understøtnings- eller styringsmidler ved mellemliggende punkter, idet kablet simpelthen er udspændt mellem adskilte 15 punkter, så det hænger i en kædelinie, der generelt er koaksial med den kædelinieformede hærdningsindeslutning.It is well known that the use of such a chain-line-cured enclosure allows the cable insulation to be cured from a relatively soft and plastic state as it emerges from the extrusion head at one end of the chain line to a relatively firm and rigid state at the opposite end, without the need to contact the insulation with support or control means at intermediate points, the cable being simply spaced between separate 15 points so as to hang in a chain line which is generally coaxial with the chain line shaped hærdningsindeslutning.
Der findes sædvanligvis midler til styring af kædelinie-placeringen af kablet inden i hærdningsindeslutningen for at sikre, at den endnu plastiske kabelisolation ikke 20 kommer i kontakt med hærdningsindeslutningens vægge og ikke bliver beskadiget derved, og sådanne midler omfatter for eksempel en kædeliniepositionsafføler inden i indeslutningen, koblet til at styre spændingen i kablet ved styring af hastigheden af kabeludhalingsindretningen 25 uden for hærdningsindeslutningen.There are usually means for controlling the chain line location of the cable within the cure enclosure to ensure that the yet plastic cable insulation does not come into contact with the walls of the cure enclosure and is not damaged thereby, and such means include, for example, a catenary position sensor within the enclosure. coupled to control the voltage in the cable by controlling the speed of the cable removal device 25 outside the cure enclosure.
Ved driften af et sådant apparat, der bruger et fluidum, flydende eller gasformigt, inden i hærdningsindeslutningen som et medium for tilførsel af den nødvendige varme til isolationen, kan der opstå problemer på 30 grund af indvirkningen fra det hydrostatiske tryk af hærdningsfluidummet på kablet, hvilket hydrostatiske tryk i kraft af trykforskellen mellem indersiden og y-dersiden af hærdningsindeslutningen ved udgangsenden af kædelinierøret søger at uddrive kablet gennem udgangs-35 tætningsorganer, der sædvanligvis er anbragt ved udgangsenden af indeslutningen. Den uden for hærdningsindeslutningen til kablet tilførte spænding, dvs. spændingen tilført for eksempel fra udhalingsindretningen, er såledesIn the operation of such an apparatus using a fluid, liquid or gaseous, within the cure containment as a medium for supplying the required heat to the insulation, problems may arise due to the effect of the hydrostatic pressure of the curing fluid on the cable, which hydrostatic pressure due to the pressure difference between the inside and the outside of the cure enclosure at the outlet end of the chain line tube seeks to expel the cable through outlet seal means usually located at the outlet end of the enclosure. The voltage applied outside the cure enclosure to the cable, ie. Thus, the voltage supplied, for example, from the extractor is
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2 ikke den samme som den spænding, kablet er underkastet inden i hærdningsindeslutningen, og under visse driftsforhold, f.eks. når kablet har letvægtsledere og en tyk isoleringsmasse, og hærdningsfluidummet har relativ høj 5 massefylde, kan der opstå den situation, at uddrivningskraften på kablet - dannet ved udgangsenden af hærdningsindeslutningen - overskrider den normalt nødvendige eksterne spænding, hvilket fører til en manglende styring af kablets kædelinieposition inden i hærdningsindeslut-10 ningen med en efterfølgende risiko for at beskadige kabelisolationen.2 is not the same as the voltage the cable is subjected to within the curing enclosure, and under certain operating conditions, e.g. when the cable has lightweight conductors and a thick insulating mass, and the curing fluid has a relatively high density, the driving force on the cable - formed at the output end of the cure enclosure - may exceed the normally required external voltage, leading to a failure to control the cable's chain line position. within the cure enclosure with a subsequent risk of damaging the cable insulation.
Fra NO patentskrifter nr. 149 122 og 153 237 kendes apparater, hvor hærdningen af kabelisolationen finder sted i et kædelinierør. Ingen af disse patentskrifter om-15 taler imidlertid problemerne forårsaget af, at varmeflui-dum tilført under tryk til hærderøret bevirker et hydrostatisk tryk, der søger at uddrive kablet gennem udgangsenden af hærderøret.NO Patents Nos. 149,122 and 153,237 disclose apparatus in which the curing of the cable insulation takes place in a chain-line pipe. However, none of these patents discloses the problems caused by heat fluid supplied under pressure to the curing tube causing a hydrostatic pressure which seeks to expel the cable through the outlet end of the curing tube.
GB patentskrift nr. 1 421 109 og US patentskrift 20 nr. 3 868 436 beskriver tilførsel af en strækkende kraft til et kabel under dettes påføring af en ekstruderet isolation. I hvert af disse tilfælde er basisapparatet imidlertid af en helt anden teknisk kategori, ved hvilken isolationen påføres i en horisontal formnings- og hærd-25 ningsanordning, idet kablet må holdes i stræk under hele processen. Til opnåelse af dette formål er kablet underlagt stræk opstrøms for ekstruderingskrydshovedet.GB Patent No. 1,421,109 and US Patent No. 20,868,436 disclose the application of a tensile force to a cable during the application of an extruded insulation. In each of these cases, however, the base apparatus is of a completely different technical category in which the insulation is applied in a horizontal forming and curing device, the cable having to be held in tension throughout the process. For this purpose, the cable is subjected to stretch upstream of the extrusion crosshead.
Til undgåelse, eller i det mindste til en væsentlig reducering, af risikoen i forbindelse med ovennævnte 30 problemer tilvejebringes ifølge opfindelsen et apparat af den i indledningen nævnte art, ejendommelig ved det i krav 1's kendetegnende del angivne. Foretrukne udførelsesformer for apparatet ifølge opfindelsen fremgår af underkravene 2-5. Endvidere tilvejebringes en fremgangs-35 måde som nævnt i indledningen, idet fremgangsmåden er ejendommelig ved det i krav 6's kendetegnende del angivne, og idet en foretrukket udførelsesform af den omhandlede fremgangsmåde fremgår af krav 7.In order to avoid, or at least substantially reduce, the risk associated with the aforementioned problems, an invention of the kind mentioned in the preamble, characterized by the characterizing part of claim 1, is provided. Preferred embodiments of the apparatus of the invention are set forth in subclaims 2-5. Furthermore, a method is provided as mentioned in the preamble, the method being characterized by the characterizing part of claim 6, and a preferred embodiment of the method according to claim 7.
33
DK 160596 BDK 160596 B
Forskellige midler for tilføring af en sådan bremsning af kablet er mulige, i særdeleshed når det tages i betragtning, at ved området af det kædelinieformede rørs udgang er isolationen praktisk taget hærdet og meget 5 mindre modtagelig for skade. Således kan bremsningsindretningen for eksempel omfatte bremsende larvebånd, der indvirker på kablet, bremsende ruller eller hjul, eller andre friktionsindretninger. Idéelt vil bremsningsindretningen være justerbar for at kunne tilpasses forskel-10 lige eller varierende kabeldimensioner og vil kunne bringes til ikke kun at ophæve virkningen af de hydrostatiske kræfter, der er dannet på kablet, men også til at give en yderligere bremsekraft, mod hvilken kabelspændingsstyringsmidler kan virke.Various means for applying such braking of the cable are possible, especially when it is taken into account that at the region of the output of the warp-shaped tube, the insulation is practically cured and much less susceptible to damage. Thus, for example, the braking device may comprise braking caterpillar belts acting on the cable, braking rollers or wheels, or other friction devices. Ideally, the braking device will be adjustable to be adapted to different or varying cable dimensions and may be brought not only to cancel the effect of the hydrostatic forces formed on the cable, but also to provide an additional braking force against which cable voltage controllers can work.
1 5 Opfindelsen forklares nærmere i det følgende under henvisning til tegningen, hvor fig. 1 skematisk viser en opstilling til ekstrude-ring af isolation på en kabelkerne og til hærdning af det ekstruderede materiale i et kædelinieformet rør, 20 fig. 2 et snit, der viser bremsningsindretningen ifølge opfindelsen, fig. 3 bremsningsindretningen fra fig. 2 placeret nær ved udgangsenden af et kædelinieformet rør, fig. 4A-4D en sekvens af operationer i forbindelse 25 med opsætningen af et kædelinieformet hærderør, der indbefatter en bremsningsindretning som vist i fig. 2, og fig. 5 et reguleringssystem til justering af den i fig. 2 viste bremsningsindretning ifølge variationer af 30 udhalingsspændingen.The invention is explained in greater detail below with reference to the drawing, in which: FIG. 1 is a schematic diagram showing an arrangement for extrusion of insulation on a cable core and for curing the extruded material in a chain-shaped tube; FIG. 2 is a sectional view showing the braking device according to the invention; FIG. 3 shows the braking device of FIG. 2 located near the outlet end of a chain-shaped tube; FIG. 4A-4D are a sequence of operations in connection with the set-up of a chain-line hardening tube which includes a braking device as shown in FIG. 2, and FIG. 5 shows a control system for adjusting the device of FIG. 2, according to variations in the output voltage.
I fig. 1 føres en kabelkerne 1 af en doseringslarvebåndsindretning 2 gennem krydshovedet 3 af en ekstruder, hvor et lag af elastomerisk isolation kontinuert ekstruderes på kabelkernen 1. Udgangen fra eks-35 truderen leder direkte over i indgangsenden af et kæde-linieformet hærderør 4, der ved drift indeholder et varmt fluidum under et forudbestemt tryk. Som vist følger kablet en kædelinieformet vej gennem det kædelinie-formede rør 4, idet dets position inden i det kædelinie-In FIG. 1, a cable core 1 of a dosing caterpillar band 2 is passed through the crosshead 3 of an extruder where a layer of elastomeric insulation is continuously extruded onto the cable core 1. The output of the extruder leads directly into the input end of a chain-line hardener tube 4 which, in operation contains a hot fluid under a predetermined pressure. As shown, the cable follows a warp-shaped path through the warp-shaped tube 4, its position within the warp-line.
DK 160596 BDK 160596 B
4 formede rør styres gennem en detektor 5, der bestemmer driftshastigheden af et udhalingslarvebånd 6 for at bestemme spændingen i kablet. Udgangsenden af det kæde-linieformede rør 4 er tætnet ved hjælp af en tætnings-5 anordning 7,4 shaped tubes are controlled through a detector 5 which determines the operating speed of a retrieval caterpillar band 6 to determine the voltage in the cable. The output end of the chain-linear tube 4 is sealed by a sealing device 7,
Fig. 2 viser et snit gennem en bremsningsindretning 8 ifølge opfindelsen, der er anbragt i hulrummet i et kædelinieformet hærderør som angivet ved 4 i fig. 1. Bremsningsindretningen 8 omfatter et 10 sæt af keglestubformede dele 9 gående ind i hinanden eller stablet sammen som vist, idet de ved deres på linie anbragte åbne toppe danner en gennemgangspassage for kablet 10. Delene 9 er lavet af naturligt eller syntetisk gummi i afhængighed af de temperaturer, de skal ud- 15 sættes for, og udvælges til en størrelse, der nominelt passer til dimensionerne af kablet 10. Delene 9 er fast presset mod væggen 11 af det kædelinieformede rør 4, og er i stand til at blive udsat for indvirkning fra et par trykringe eller kraver 12, 13, af hvilke den før-20 ste 12 er fastgjort til det kædelinieformede rør og den anden 13 er flytbar aksialt i forhold til det kædelinief ormede rør. Som det fremgår, vil bevægelse af trykkraven 13 mod venstre >(set i fig. 2). bevirke en deformation af delene 9, således at de griber fastere om kab-25 let 10, hvorimod den modsatte bevægelse vil reducere den bremsende påvirkning fra delene 9.FIG. 2 shows a section through a braking device 8 according to the invention arranged in the cavity of a chain-shaped hardening tube as indicated by 4 in FIG. 1. The braking device 8 comprises a 10 set of cone-shaped parts 9 integrating or stacked together as shown, forming at their aligned open peaks a passage passage for the cable 10. The parts 9 are made of natural or synthetic rubber depending upon the temperatures to which they are subjected and selected to a size that is nominally appropriate to the dimensions of the cable 10. The parts 9 are firmly pressed against the wall 11 of the chain-shaped tube 4, and are capable of impact. from a pair of pressure rings or collars 12, 13, of which the first 12 is attached to the warp-shaped tube and the second 13 is movable axially with respect to the warp-shaped tube. As can be seen, movement of the pressure collar 13 to the left> (seen in Fig. 2). cause a deformation of the parts 9 so that they grip the cable 10 more firmly, whereas the opposite movement will reduce the braking effect of the parts 9.
Fig. 3 er et eksempel, der viser den bremsende indretning 8 fra fig. 2 installeret nær ved udgangsenden af et kædelinieformet hærderør 4.. En trykshunt 14 3Q er anbragt rundt om bremsningsindretningen 8, og der er også anbragt en pneumatisk tætningsanordning 15 og en hurtigudløsende trossetætningsanordning 16 neden for bremsningsindretningen 8. Fig. 4A til 4D viser sekvensen af operationer i forbindelse med opstarten af en kædeli-35 nieformet vulkaniseringslinie som vist i fig. 3. I fig.FIG. 3 is an example showing the braking device 8 of FIG. 2 is installed near the outlet end of a chain-shaped hardening tube 4. A pressure shunt 14 3Q is disposed around the braking device 8, and a pneumatic sealing device 15 and a quick release throttle sealing device 16 are also located below the braking device 8. FIG. 4A to 4D show the sequence of operations associated with the start of a chain-shaped vulcanization line as shown in FIG. 3. In FIG.
4A trækkes kabelstarten 20 gennem kædelinierøret 4 med en trosse med lille diameter 21, der kun giver an-4A, the cable start 20 is pulled through the chain line tube 4 with a small diameter bushing 21 which provides only
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5 ledning til et meget lille hydrostatisk tryk indvirkende på hurtigudløsningstætningsanordningen 16. Under disse forhold er den affølte udhalingsspænding relativ høj, og dette bevirker, at trykkraven 13 (fig. 2) af bremsnings-5 indretningen 8 bliver justeret mod højre for at minimere indvirkningen af bremsningsindretningen 8 og tillade relativt fri passage af kabelstarten 20. Fig. 4B viser kabelstarten 20 i indgreb med bremsningsindretningen 8, men ellers er forholdene som for fig. 4A, da bremsnings-10 indretningen 8 er shuntet af shunten 14. Når, som vist i fig. 4C, kabelstarten 20 stikker ind i tætningsanordningen 15, vil trykket mellem tætningsanordningen 15 og trossetætningsanordningen 16 blive reduceret mod atmosfæretrykket, og den hydrostatiske kraft, der virker på 15 kablet på grund af presset af hærdningsmediet, vokser dramatisk. Udhalingsspændingen for kablet falder tilsvarende, og som svar på dette fald bliver bremsningsindretningen aktiveret ved en tilsvarende venstrebevægelse af trykkraven 13. I fig. 4D har trossetætningsanordningen 20 16 åbnet sig, før kabelstarten 20 har forladt det kæ- delinieformede rør, og den bremsende indretning indtager en normal operationstilstand, hvor den, i afhængighed af varierende udhalingsspænding, tilfører kablet en varierende bremsning.5 conduction to a very small hydrostatic pressure acting on the quick release sealing device 16. Under these conditions, the sensed release voltage is relatively high and this causes the pressure collar 13 (Fig. 2) of the braking device 8 to be adjusted to the right to minimize the effect of the braking device 8 and allow relatively free passage of the cable start 20. FIG. 4B shows the cable start 20 in engagement with the braking device 8, but otherwise the conditions as for FIG. 4A, since the braking device 8 is shunted by the shunt 14. When, as shown in FIG. 4C, the cable start 20 protrudes into the sealing device 15, the pressure between the sealing device 15 and the sealing device 16 will be reduced to atmospheric pressure and the hydrostatic force acting on the cable due to the pressure of the curing medium increases dramatically. The output voltage of the cable decreases correspondingly, and in response to this decrease the braking device is activated by a corresponding left movement of the pressure collar 13. In fig. 4D, the sealing device 20 16 has opened before the cable start 20 has left the kettle-shaped tube, and the braking device assumes a normal operating state where, depending on varying output voltage, it imparts a varying braking to the cable.
25 Fig. 5 viser et reguleringssystem for justering af bremsningsindretningen 8 i fig. 2 i afhængighed af variationer i den affølte udhalingsspænding. Bremsningsindretningen 8-s gummikegler 9 er, for at opnå den nødvendige bremsekraft, sammenpressede ved hjælp af et par 30 hydrauliske cylindre 30, 31. Sammenpresningsgraden, og dermed størrelsen af bremsekraften, bestemmes af flytningen af disse cylindre. Denne flytning bestemmes af en hydraulisk trestillings-ventil 32, der har en tilspændings-tilstand, en neutral tilstand og en frigivende tilstand.FIG. 5 shows a control system for adjusting the braking device 8 in FIG. 2 in response to variations in the sensed output voltage. The braking device 8-s rubber cones 9 are compressed by means of a pair of 30 hydraulic cylinders 30, 31. In order to obtain the necessary braking force, the degree of compression, and thus the magnitude of the braking force, is determined by the movement of these cylinders. This displacement is determined by a hydraulic three-position valve 32 having a tightening state, a neutral state and a releasing state.
35 Denne ventil styres automatisk af et elektronisk logiksystem 33, der tilføres et signal fra en belastningscelle, der overvåger udhalingsspændingen via et vendehjul (fig.l).This valve is automatically controlled by an electronic logic system 33 applied to a signal from a load cell which monitors the output voltage via a reversing wheel (Fig. 1).
Claims (7)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB08209395A GB2118191B (en) | 1982-03-31 | 1982-03-31 | Curing of insulated electric cables |
| GB8209395 | 1982-03-31 |
Publications (4)
| Publication Number | Publication Date |
|---|---|
| DK102283D0 DK102283D0 (en) | 1983-02-28 |
| DK102283A DK102283A (en) | 1983-10-01 |
| DK160596B true DK160596B (en) | 1991-03-25 |
| DK160596C DK160596C (en) | 1991-09-02 |
Family
ID=10529410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DK102283A DK160596C (en) | 1982-03-31 | 1983-02-28 | APPARATUS AND PROCEDURES FOR CURRENTING THE EXTRADUCTORY INSULATION layer of an electrical cable |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS58212015A (en) |
| AU (1) | AU551801B2 (en) |
| BR (1) | BR8301709A (en) |
| CA (1) | CA1211914A (en) |
| DE (1) | DE3310731A1 (en) |
| DK (1) | DK160596C (en) |
| ES (2) | ES521594A0 (en) |
| FR (1) | FR2524382B1 (en) |
| GB (1) | GB2118191B (en) |
| IT (1) | IT1161093B (en) |
| NO (1) | NO159428C (en) |
| NZ (1) | NZ203688A (en) |
| SE (1) | SE464546B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SE504677C2 (en) * | 1994-09-29 | 1997-04-07 | Clas Abrahamsson | Hand-powered wood split |
| AU2007266334A1 (en) * | 2006-05-30 | 2007-12-06 | Vortex Pipes Ltd. | Sliding seal |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1885080A (en) * | 1929-05-10 | 1932-10-25 | Western Electric Co | Apparatus for handling treated articles |
| DE803869C (en) * | 1948-11-04 | 1951-04-12 | British Insulated Callenders | Stuffing box |
| DE1051926B (en) * | 1954-10-18 | 1959-03-05 | British Insulated Callenders | Gland assembly for continuous cable vulcanizing devices |
| US3359596A (en) * | 1965-06-16 | 1967-12-26 | Crompton & Knowles Corp | Stock catenary control in continuous vulcanizer |
| SE321516B (en) * | 1965-07-09 | 1970-03-09 | Phelps Dodge Copper Prod | |
| JPS5221193B2 (en) * | 1971-12-17 | 1977-06-08 | ||
| IT947254B (en) * | 1972-02-03 | 1973-05-21 | Pirelli | SEALING DEVICE PERFECTED FOR FLUIDS ESPECIALLY TO BE APPLIED TO A VULCANIZATION PIPE FOR ELECTRIC CABLES |
| JPS5013894A (en) * | 1973-06-12 | 1975-02-13 | ||
| GB1504355A (en) * | 1974-11-29 | 1978-03-22 | Scholz Gmbh Co Kg Maschbau | Vulcanising device |
| DE2528232A1 (en) * | 1975-06-25 | 1977-01-20 | Kabel Metallwerke Ghh | Continuously extruding insulation on conductors - passing insulated material through coolant in catenary curved flexible tube |
| FR2396395A1 (en) * | 1977-06-30 | 1979-01-26 | Nokia Oy Ab | Twisted cable insulated covering applicator - has endless belt cable pullers which swing to allow cable to twist |
| US4179256A (en) * | 1978-03-31 | 1979-12-18 | Furukawa Electric Co., Ltd. | Vulcanization apparatus for a continuous length of article of rubber, plastics or the like material |
| JPS606052B2 (en) * | 1981-06-10 | 1985-02-15 | 株式会社フジクラ | Continuous vulcanization equipment |
-
1982
- 1982-03-31 GB GB08209395A patent/GB2118191B/en not_active Expired
-
1983
- 1983-02-25 IT IT19763/83A patent/IT1161093B/en active
- 1983-02-28 DK DK102283A patent/DK160596C/en not_active IP Right Cessation
- 1983-03-15 AU AU12465/83A patent/AU551801B2/en not_active Ceased
- 1983-03-24 NO NO831055A patent/NO159428C/en unknown
- 1983-03-24 NZ NZ203688A patent/NZ203688A/en unknown
- 1983-03-24 DE DE3310731A patent/DE3310731A1/en active Granted
- 1983-03-29 BR BR8301709A patent/BR8301709A/en not_active IP Right Cessation
- 1983-03-29 CA CA000424736A patent/CA1211914A/en not_active Expired
- 1983-03-30 SE SE8301779A patent/SE464546B/en not_active IP Right Cessation
- 1983-03-31 FR FR8305331A patent/FR2524382B1/en not_active Expired
- 1983-03-31 JP JP58054054A patent/JPS58212015A/en active Granted
- 1983-03-31 ES ES521594A patent/ES521594A0/en active Granted
- 1983-03-31 ES ES521595A patent/ES8403663A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DK102283D0 (en) | 1983-02-28 |
| AU1246583A (en) | 1983-10-06 |
| IT1161093B (en) | 1987-03-11 |
| JPS58212015A (en) | 1983-12-09 |
| GB2118191A (en) | 1983-10-26 |
| DE3310731A1 (en) | 1983-10-06 |
| GB2118191B (en) | 1985-06-05 |
| SE8301779L (en) | 1983-10-01 |
| DE3310731C2 (en) | 1991-09-12 |
| ES8403662A1 (en) | 1984-04-01 |
| NO159428B (en) | 1988-09-12 |
| ES521594A0 (en) | 1984-04-01 |
| NO831055L (en) | 1983-10-03 |
| AU551801B2 (en) | 1986-05-08 |
| CA1211914A (en) | 1986-09-30 |
| NO159428C (en) | 1988-12-21 |
| ES521595A0 (en) | 1984-04-01 |
| BR8301709A (en) | 1983-12-13 |
| IT8319763A0 (en) | 1983-02-25 |
| ES8403663A1 (en) | 1984-04-01 |
| SE8301779D0 (en) | 1983-03-30 |
| DK160596C (en) | 1991-09-02 |
| NZ203688A (en) | 1985-07-31 |
| DK102283A (en) | 1983-10-01 |
| JPH039569B2 (en) | 1991-02-08 |
| FR2524382B1 (en) | 1986-05-02 |
| FR2524382A1 (en) | 1983-10-07 |
| SE464546B (en) | 1991-05-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PBP | Patent lapsed |