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GB1449753A - Hoses - Google Patents

Hoses

Info

Publication number
GB1449753A
GB1449753A GB2606174A GB2606174A GB1449753A GB 1449753 A GB1449753 A GB 1449753A GB 2606174 A GB2606174 A GB 2606174A GB 2606174 A GB2606174 A GB 2606174A GB 1449753 A GB1449753 A GB 1449753A
Authority
GB
United Kingdom
Prior art keywords
nylon
core tube
sheath
strands
hose
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
GB2606174A
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.)
Parker Hannifin Corp
Original Assignee
Parker Hannifin Corp
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 Parker Hannifin Corp filed Critical Parker Hannifin Corp
Priority to GB2606174A priority Critical patent/GB1449753A/en
Publication of GB1449753A publication Critical patent/GB1449753A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • F16L11/082—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire two layers
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/15—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor incorporating preformed parts or layers, e.g. extrusion moulding around inserts
    • B29C48/151—Coating hollow articles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L11/00—Hoses, i.e. flexible pipes
    • F16L11/04—Hoses, i.e. flexible pipes made of rubber or flexible plastics
    • F16L11/08—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall
    • F16L11/081—Hoses, i.e. flexible pipes made of rubber or flexible plastics with reinforcements embedded in the wall comprising one or more layers of a helically wound cord or wire
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

1449753 Nylon hose PARKER HANNIFIN CORP 12 June 1974 26061/74 Heading F2P A hose comprises a nylon core tube 10, reinforced by two nylon strands 13, 14 spirally wrapped in opposite directions around the outer surface of the core tube 10, and in such a way that substantial spaces 15, exist between individual turns of each strand and a nylon sheath 12 fitting snugly over said nylon strands 13, 14, and fused to the core tube 10 in said spaces 15. The strands 13, 14 are in unbonded contact with the core tube 10, the outer sheath 12 and each other so that they can have limited movement relative to the core tube 10, outer sheath 12 and each other. The core tube 10 and sheath 12 are preferably made from Nylon 11 and have similar melting points. The nylon reinforcing strands 13, 14 are preferably made from Nylon 66 which has a substantially higher melting point than Nylon 11. Nylon core tube 10 which has previously been extruded and stored on a reel 20, is passed through a mechanism consisting of two spools 21 and 22 which spirally wrap two nylon reinforcement strands in opposite directions around the core tube which then enters a cross head 23 from which nylon sheath 12 is extruded over the reinforcement 11 and core tube 10 under pressure and at a temperature of 230‹ to 260‹ C. The temperature at which the sheath is extruded is sufficient to soften the core tube material and effect a bond between the sheath 12 and the core tube 10 in the spaces 15 between the reinforcing strands 13, 14. After extrusion of the sheath the hose is cooled by passing through a water bath, passed through a gauging device 25, and marker 26, and then wound upon a storage rack 27. The reinforcing strands 13, 14, having a higher melting point, do not bond to the core tube 10 or the sheath 12 and thus can slip slightly relative to each other the core tube 10 and the sheath 12, when the hose is bent or flexed. In this way excessive tensile stress on the fibres of the reinforcement during such bending or flexing is avoided.
GB2606174A 1974-06-12 1974-06-12 Hoses Expired GB1449753A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2606174A GB1449753A (en) 1974-06-12 1974-06-12 Hoses

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2606174A GB1449753A (en) 1974-06-12 1974-06-12 Hoses

Publications (1)

Publication Number Publication Date
GB1449753A true GB1449753A (en) 1976-09-15

Family

ID=10237753

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2606174A Expired GB1449753A (en) 1974-06-12 1974-06-12 Hoses

Country Status (1)

Country Link
GB (1) GB1449753A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454039A1 (en) * 1979-04-10 1980-11-07 Automotive Prod Co Ltd FLEXIBLE TUBE FOR FLUID
FR2699979A1 (en) * 1992-12-29 1994-07-01 Courant Ets Sa Multilayer conduit and die for its manufacture.
WO2005028198A1 (en) * 2003-09-19 2005-03-31 Nkt Flexibles I/S A flexible unbonded pipe and a method for producing such pipe
EP2518381A3 (en) * 2011-04-26 2013-12-04 REHAU AG + Co Flexible hose and method for producing the same
EP2518382A3 (en) * 2011-04-26 2013-12-11 REHAU AG + Co Hose for conveying fluids

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2454039A1 (en) * 1979-04-10 1980-11-07 Automotive Prod Co Ltd FLEXIBLE TUBE FOR FLUID
FR2699979A1 (en) * 1992-12-29 1994-07-01 Courant Ets Sa Multilayer conduit and die for its manufacture.
US5732746A (en) * 1992-12-29 1998-03-31 Etablissements Courant Sa Multilayer pipe and die for manufacturing it
WO2005028198A1 (en) * 2003-09-19 2005-03-31 Nkt Flexibles I/S A flexible unbonded pipe and a method for producing such pipe
AU2004274073B2 (en) * 2003-09-19 2010-02-18 National Oilwell Varco Denmark I/S A flexible unbonded pipe and a method for producing such pipe
US7976920B2 (en) 2003-09-19 2011-07-12 Nkt Flexibles I/S Flexible unbonded pipe and a method for producing such pipe
US8163364B2 (en) 2003-09-19 2012-04-24 Nkt Flexibles I/S Flexible unbonded pipe and a method for producing such pipe
EP2518381A3 (en) * 2011-04-26 2013-12-04 REHAU AG + Co Flexible hose and method for producing the same
EP2518382A3 (en) * 2011-04-26 2013-12-11 REHAU AG + Co Hose for conveying fluids

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee