GB1124656A - Improvements relating to tubes or similar constructions - Google Patents

Improvements relating to tubes or similar constructions

Info

Publication number
GB1124656A
GB1124656A GB38957/65A GB3895765A GB1124656A GB 1124656 A GB1124656 A GB 1124656A GB 38957/65 A GB38957/65 A GB 38957/65A GB 3895765 A GB3895765 A GB 3895765A GB 1124656 A GB1124656 A GB 1124656A
Authority
GB
United Kingdom
Prior art keywords
tube
webs
strip
sept
tubes
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
Application number
GB38957/65A
Other languages
English (en)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Polva Nederland BV
Polva Nederland NV
Original Assignee
Polva Nederland BV
Polva Nederland NV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Polva Nederland BV, Polva Nederland NV filed Critical Polva Nederland BV
Publication of GB1124656A publication Critical patent/GB1124656A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/151Making tubes with multiple passages
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/02Making uncoated products
    • B21C23/04Making uncoated products by direct extrusion
    • B21C23/14Making other products
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C23/00Extruding metal; Impact extrusion
    • B21C23/02Making uncoated products
    • B21C23/04Making uncoated products by direct extrusion
    • B21C23/14Making other products
    • B21C23/142Making profiles
    • B21C23/145Interlocking profiles
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/12Making tubes or metal hoses with helically arranged seams
    • B21C37/124Making tubes or metal hoses with helically arranged seams the tubes having a special shape, e.g. with corrugated wall, flexible tubes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D11/00Bending not restricted to forms of material mentioned in only one of groups B21D5/00, B21D7/00, B21D9/00; Bending not provided for in groups B21D5/00 - B21D9/00; Twisting
    • B21D11/06Bending into helical or spiral form; Forming a succession of return bends, e.g. serpentine form
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/56Winding and joining, e.g. winding spirally
    • B29C53/58Winding and joining, e.g. winding spirally helically
    • B29C53/78Winding and joining, e.g. winding spirally helically using profiled sheets or strips
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00Hoses, i.e. flexible pipes
    • F16L11/14Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics
    • F16L11/16Hoses, i.e. flexible pipes made of rigid material, e.g. metal or hard plastics wound from profiled strips or bands
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/16Rigid pipes wound from sheets or strips, with or without reinforcement
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16LPIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00Rigid pipes
    • F16L9/18Double-walled pipes; Multi-channel pipes or pipe assemblies
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24628Nonplanar uniform thickness material
    • Y10T428/24661Forming, or cooperating to form cells
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/24Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24744Longitudinal or transverse tubular cavity or cell

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
GB38957/65A 1964-09-14 1965-09-13 Improvements relating to tubes or similar constructions Expired GB1124656A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL646410674A NL150210B (nl) 1964-09-14 1964-09-14 Buigzame strook voor het schroefvormig wikkelen tot een buis.

Publications (1)

Publication Number Publication Date
GB1124656A true GB1124656A (en) 1968-08-21

Family

ID=19791007

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38957/65A Expired GB1124656A (en) 1964-09-14 1965-09-13 Improvements relating to tubes or similar constructions

Country Status (5)

Country Link
US (1) US3495628A (enrdf_load_stackoverflow)
BE (1) BE669613A (enrdf_load_stackoverflow)
DE (1) DE1284746B (enrdf_load_stackoverflow)
GB (1) GB1124656A (enrdf_load_stackoverflow)
NL (1) NL150210B (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001894A1 (en) * 1977-10-18 1979-05-16 Rib Loc Hong Kong Limited Elongated strip for the formation of tubular articles and a method of forming the strip into an article
GB2255610A (en) * 1991-05-10 1992-11-11 William Ryan Insulation
EP0621150A3 (en) * 1993-04-23 1994-12-21 Hoogovens Groep Bv Beam for door and car door provided with such a door as a shock beam.

Families Citing this family (67)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1816374B1 (de) * 1968-12-21 1971-01-21 Manfred Hawerkamp Wickelhohlprofil aus thermoplastischem Kunststoff zur Herstellung von Rohren,Platten,Behaeltern oder Hohlkoerpern
JPS51144818U (enrdf_load_stackoverflow) * 1976-04-19 1976-11-20
US4119123A (en) * 1976-12-23 1978-10-10 Ernie Samuels, Inc. Flexible hose with wear indicator
JPS52142226U (enrdf_load_stackoverflow) * 1977-04-27 1977-10-28
US4308082A (en) * 1977-10-18 1981-12-29 Rib Loc (Hong Kong) Ltd. Method of forming a tubular article
US4337564A (en) * 1978-10-06 1982-07-06 Rib Loc Hong Kong Limited Machine and method for forming tubes from a strip
US4279965A (en) * 1979-03-15 1981-07-21 Orvar Elmqvist Blank pipe for manufacture
FR2464819A1 (fr) * 1979-09-10 1981-03-20 Pont A Mousson Tube en matiere plastique obtenu par enroulement en helice d'un profile
US4362187A (en) * 1980-08-05 1982-12-07 Manville Service Corporation Spirally-formed thermoplastic tube
US4351868A (en) * 1981-04-15 1982-09-28 Toyoda Gosei Co., Ltd. Molding
DE3246247A1 (de) * 1982-12-14 1984-06-14 Siemens AG, 1000 Berlin und 8000 München Doppelwandiger, flexibler schlauch
EP0160498A3 (en) * 1984-04-23 1987-01-14 Marcello Valenzano Conduit cable support
JPS6136785U (ja) * 1984-08-09 1986-03-07 史朗 金尾 合成樹脂製地中埋設管
US4714508A (en) * 1986-03-25 1987-12-22 Alopex Industries, Inc. Fixture and method for making spiral wound hose
US4753256A (en) * 1985-11-18 1988-06-28 Alopex Industries, Inc. Pool cleaner hose
US4759389A (en) * 1986-12-04 1988-07-26 Kim Woo Suck Synthetic resin pipe for underground installation
DE3717418C1 (de) * 1987-05-23 1988-10-06 Baston Artur Vobau Zylindrischer Hohlkoerper aus schraubenlinienfoermig aufgewickeltem Kunststoffprofil
CH673981A5 (enrdf_load_stackoverflow) * 1987-08-25 1990-04-30 Ametex Ag
FI82133C (sv) * 1988-08-17 1991-01-10 Kwh Pipe Ab Oy Spirallindat rör
DE3931613C1 (enrdf_load_stackoverflow) * 1989-09-22 1990-09-20 Petzetakis, George Aristovoulos, Piraeus, Gr
US5099888A (en) * 1990-06-04 1992-03-31 Vassallo Research And Development Corporation Impact protected, sealed, double-walled pipe body
FR2665237B1 (fr) * 1990-07-27 1992-11-13 Coflexip Carcasse et conduite tubulaire flexible comportant une telle carcasse.
US5196255A (en) * 1991-07-01 1993-03-23 Cohen John M Extruded plastic slat
US5450703A (en) * 1991-12-23 1995-09-19 Johnson Camping, Inc. Frame structures formed of double tube components
BE1005597A3 (nl) * 1992-01-03 1993-11-16 Plastiflex Europ N V Soepele slang aan te sluiten op een toestel voor het doorvoeren van een fluidum.
US5727598A (en) * 1993-04-30 1998-03-17 Advanced Drainage Systems, Inc. Pipe wall segment and pipe having sidewall
US5362114A (en) * 1993-11-09 1994-11-08 Levingston Jerry C Pipe joint and method for forming same for threaded connection of profile pipe
JP3118582B2 (ja) * 1994-07-25 2000-12-18 金尾 茂樹 樹脂管
US5765598A (en) * 1995-10-23 1998-06-16 Advanced Drainage Systems, Inc. Pipe construction
US6405974B1 (en) * 1998-08-12 2002-06-18 F. John Herrington Ribbed core dual wall structure
AUPQ297899A0 (en) * 1999-09-20 1999-10-14 Talana Investments Limited An improved duct construction
US6311514B1 (en) 2000-04-07 2001-11-06 Automotive Fluid Systems, Inc. Refrigeration accumulator having a matrix wall structure
AU2001261398A1 (en) * 2000-05-10 2001-11-20 Long, Jason Multi-purpose rehabilitation of conduits
US20070034274A1 (en) * 2000-07-27 2007-02-15 Proteus, Inc. Extrusion apparatus
KR20030007270A (ko) * 2002-11-12 2003-01-23 박일숙 진공청소기용 플렉시블 호스 및 그 제조방법
US7766050B2 (en) * 2003-11-28 2010-08-03 Fisher & Paykel Healthcare Limited Conduit and method of forming
JP2006167457A (ja) * 2004-12-15 2006-06-29 Kim Bong Hee 真空掃除機用ホース
US20080128583A1 (en) * 2006-07-17 2008-06-05 Doug Smoljo Form and method and apparatus for making a form
CN101949476A (zh) * 2010-09-10 2011-01-19 华瀚科技有限公司 一种双平壁管带材搭接结构及使用该结构的双平壁管
CN101982690A (zh) * 2010-09-16 2011-03-02 华瀚科技有限公司 双平壁管带材的缠绕搭接结构及使用该结构的双平壁管
CN114099875B (zh) 2011-06-03 2025-02-25 费雪派克医疗保健有限公司 医用管和制造方法
DE112012002914T8 (de) 2011-07-13 2014-05-22 Fisher & Paykel Healthcare Ltd. Impeller- und Motorbaugruppe
US20130015287A1 (en) * 2011-07-14 2013-01-17 Bryant J Daniel Spirally wound channel core
US10125912B2 (en) * 2011-08-27 2018-11-13 John C. Tomaini Spacer system for reflective insulation
WO2013044920A1 (en) * 2011-09-29 2013-04-04 National Oilwell Varco Denmark I/S A thermal insulating element, a subsea structure such as an armoured unbonded flexible pipe comprising such an element, and methods of manufacturing such an element and such a pipe
CN105307715B (zh) 2012-03-15 2017-11-17 费雪派克医疗保健有限公司 呼吸气体加湿系统
AU2013244090B2 (en) 2012-04-05 2018-04-05 Fisher & Paykel Healthcare Limited Respiratory assistance apparatus
DE112013002228T5 (de) 2012-04-27 2015-01-22 Fisher & Paykel Healthcare Limited Gebrauchstauglichkeitsfunktionen für ein Atembefeuchtungssystem
CN102777711A (zh) * 2012-08-06 2012-11-14 山东天迈管业有限公司 一种一次成型的双平壁缠绕管材
EP4035716B1 (en) 2012-11-14 2024-07-31 Fisher & Paykel Healthcare Limited Zone heating for respiratory circuits
CN110025867B (zh) 2012-12-04 2022-04-08 费雪派克医疗保健有限公司 医用管以及其制造方法
US10471225B2 (en) 2012-12-18 2019-11-12 Fisher & Paykel Healthcare Limited Impeller and motor assembly
CN103174887A (zh) * 2013-04-07 2013-06-26 昆山通塑机械制造有限公司 新型塑钢缠绕管
GB2534496B (en) 2013-09-13 2020-04-01 Fisher & Paykel Healthcare Ltd A cartridge for a respiratory humidifier
CN104452942A (zh) * 2013-09-16 2015-03-25 蔡岱君 排水管、其制造方法及排水管单元的组装方法
US10814091B2 (en) 2013-10-24 2020-10-27 Fisher & Paykel Healthcare Limited System for delivery of respiratory gases
JP6442510B2 (ja) 2013-12-20 2018-12-19 フィッシャー アンド ペイケル ヘルスケア リミテッド 加湿システム接続部
US10449319B2 (en) 2014-02-07 2019-10-22 Fisher & Paykel Healthcare Limited Respiratory humidification system
WO2015142192A1 (en) 2014-03-17 2015-09-24 Fisher & Paykel Healthcare Limited Medical tubes for respiratory systems
CN115554543A (zh) 2014-05-27 2023-01-03 费雪派克医疗保健有限公司 用于医疗装置的气体混合和测量
CN106535971B (zh) 2014-06-03 2020-12-04 费雪派克医疗保健有限公司 用于呼吸治疗系统的流动混合器
TWI794733B (zh) 2015-09-09 2023-03-01 紐西蘭商費雪派克保健有限公司 呼吸加濕系統
EP3383470B8 (en) 2015-12-02 2022-05-25 Fisher&Paykel Healthcare Limited Flow path sensing for flow therapy apparatus
WO2018106126A1 (en) 2016-12-07 2018-06-14 Fisher And Paykel Healthcare Limited Sensing arrangements for medical devices
EP4523724A1 (en) 2016-12-22 2025-03-19 Fisher & Paykel Healthcare Limited Medical tubes and methods of manufacture
US11401974B2 (en) 2017-04-23 2022-08-02 Fisher & Paykel Healthcare Limited Breathing assistance apparatus
CN110630828A (zh) * 2019-10-10 2019-12-31 张家港戴恩机械有限公司 一种中空壁多孔加筋缠绕波纹管

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US712418A (en) * 1902-03-01 1902-10-28 James B Brady Flexible metallic tube without joints.
US1519694A (en) * 1921-07-23 1924-12-16 Vincent C Muessman Pipe covering
US1842298A (en) * 1929-02-11 1932-01-19 Smith Corp A O Underground pipe line
US2524522A (en) * 1948-08-24 1950-10-03 Gen Electric Flexible hose of extrudable elastomeric composition
US2874722A (en) * 1952-10-06 1959-02-24 Eva F Hamblin Buoyant, insulated flexible tubing and method of making same
CH318953A (de) * 1952-10-07 1957-01-31 Svenska Aktiebolaget Polva Aus einem federnd nachgiebigen Kunststoff bestehendes Band
US3044257A (en) * 1958-06-02 1962-07-17 Thiokol Chemical Corp Combustion chamber outer jacket
DE1786012U (de) * 1959-01-31 1959-04-02 Wilhelm Eckhardt Verwendung von profileisen, deren querschnitt an mindestens einer stelle groesser ist als an anderen stellen, insbesondere handelsueblicher profileisen.
DE1088912B (de) * 1959-01-31 1960-09-15 Wilhelm Eckhardt Ausgangsmaterial fuer die Herstellung schraubennahtgeschweisster Hohlkoerper, z. B. Rohre
GB906507A (en) * 1959-04-08 1962-09-19 Bristolaerojet Ltd Metal tubes and their manufacture
FR1247968A (fr) * 1959-10-15 1960-12-09 Structure pour canalisations et autres applications
FR1349602A (fr) * 1963-02-20 1964-01-17 élément rigide à haute résistance et de faible poids

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0001894A1 (en) * 1977-10-18 1979-05-16 Rib Loc Hong Kong Limited Elongated strip for the formation of tubular articles and a method of forming the strip into an article
GB2255610A (en) * 1991-05-10 1992-11-11 William Ryan Insulation
GB2255610B (en) * 1991-05-10 1995-04-26 William Ryan Pipe insulation
EP0621150A3 (en) * 1993-04-23 1994-12-21 Hoogovens Groep Bv Beam for door and car door provided with such a door as a shock beam.

Also Published As

Publication number Publication date
NL150210B (nl) 1976-07-15
US3495628A (en) 1970-02-17
NL6410674A (enrdf_load_stackoverflow) 1966-03-15
DE1284746B (de) 1968-12-05
BE669613A (enrdf_load_stackoverflow) 1965-12-31

Similar Documents

Publication Publication Date Title
GB1124656A (en) Improvements relating to tubes or similar constructions
GB1441742A (en) Tubing
GB1127756A (en) Improvements in or relating to tubular articles of helically-wound strip and their manufacture
GB1244611A (en) Improvements in or relating to heat exchangers
GB1413402A (en) Reinforced flexible hoses
FR2023250A1 (en) Armoured plastic hose for high pressure oils
GB1331400A (enrdf_load_stackoverflow)
GB1019370A (en) Improvements in reinforced flexible hose
JPS5844582U (ja) 合成樹脂製内膜体付き螺旋巻きコルゲ−ト管
US2258911A (en) Stovepipe
GB1134041A (en) An improved tube
GB1081339A (en) Improvements in flexible ducting
GB1359647A (en) Heat transfer tubes
GB1155899A (en) Heat Exchanger Tube
GB1043278A (en) Improvements in or relating to the construction of tubes
GB1489366A (en) Tube blanks
GB1472630A (en) Composite flexible tubes and method of manufacturing the same
JPS6288173U (enrdf_load_stackoverflow)
IT1174940B (it) Procedimenti di fabbricazione e dispositivi per la saldatura,la piegatura e connessione di manufatti in estrusi termoplastici a strutture alveolari
JPS6140594U (ja) 可撓性真空断熱二重管
GB1098092A (en) Improvements in or relating to tubes
GB1095652A (en) Nuclear reactor fuel elements
GB995480A (en) Improvements in or relating to hoses of synthetic plastic material
IT1174742B (it) Procedimento per la formazione di un filato cardato e o semicarda to con alta regolarita'di titolo metrico
GB1045636A (en) An improved composite tube structure