GB350390A - Improvements in or relating to the manufacture of flexible tubes - Google Patents

Improvements in or relating to the manufacture of flexible tubes

Info

Publication number
GB350390A
GB350390A GB38443/30A GB3844330A GB350390A GB 350390 A GB350390 A GB 350390A GB 38443/30 A GB38443/30 A GB 38443/30A GB 3844330 A GB3844330 A GB 3844330A GB 350390 A GB350390 A GB 350390A
Authority
GB
United Kingdom
Prior art keywords
helix
tube
bath
tubes
rollers
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
GB38443/30A
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.)
SUPERFLEXIT
Superflexit Ltd
Original Assignee
SUPERFLEXIT
Superflexit Ltd
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 SUPERFLEXIT, Superflexit Ltd filed Critical SUPERFLEXIT
Priority to GB38443/30A priority Critical patent/GB350390A/en
Publication of GB350390A publication Critical patent/GB350390A/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
    • F16L11/11—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall
    • F16L11/112—Hoses, i.e. flexible pipes made of rubber or flexible plastics with corrugated wall having reinforcements embedded in the wall
    • 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
    • B29C48/152—Coating hollow articles the inner surfaces thereof
    • B29C48/153—Coating both inner and outer surfaces
    • 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)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

350,390. Flexible tubes. GRINT, W. H. and SUPERFLEXIT, Ltd., 110, Cannon Street, London. Feb. 27, 1930, No. 38443. Divided on 349,965. [Class 99 (ii).] Flexible tubes are made by extruding cellulosic material around a continuously-fed wire helix. In Fig. 1 cellulosic material in a bath 11 passes through a nozzle 12 past the end of a guiding tube 13 for the wire helix 14. The coated helix 14 passes into a setting bath 15. The cellulosic material is contracted on to the helix 14, the surplus material forming pleats extending longitudinally of the tube, by means of opposed rollers 18, 19. The rollers may be rotated about the axis of the tube or the helix may be screwed into the tube 13. The rollers 18, 19 may be located in the bath. Alternatively the contraction may be effected by winding an outer helix on to the tube with its convolutions lying between those of the inner helix. This outer helix may be a permanent binder as described in Specification 206,046, [Class 99 (ii), Pipes, tubes, &c.], or a temporary binder as described in Specification 349,965 may be used. In a modification, Fig. 2, the helix 14 is fed screwwise into a groove 23 formed between the outer shell 20 and the inner core 21 of a die. Ducts 25, 26 communicate with the groove 23 and through them a cellulosic and if necessary a hardening agent is supplied. On leaving the die the tube may be passed into a bath as shown at 15 in Fig. 1. The tubes may be protected by layers of canvas, rubber, waterproof material and outer layers of canvas. An outer binder may also be added, which may be encased by a braided or woven covering.
GB38443/30A 1930-02-27 1930-02-27 Improvements in or relating to the manufacture of flexible tubes Expired GB350390A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB38443/30A GB350390A (en) 1930-02-27 1930-02-27 Improvements in or relating to the manufacture of flexible tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB38443/30A GB350390A (en) 1930-02-27 1930-02-27 Improvements in or relating to the manufacture of flexible tubes

Publications (1)

Publication Number Publication Date
GB350390A true GB350390A (en) 1931-05-27

Family

ID=10403475

Family Applications (1)

Application Number Title Priority Date Filing Date
GB38443/30A Expired GB350390A (en) 1930-02-27 1930-02-27 Improvements in or relating to the manufacture of flexible tubes

Country Status (1)

Country Link
GB (1) GB350390A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963749A (en) * 1958-11-13 1960-12-13 Hoover Co Continuous method of and apparatus for making extensible and flexible hose
US3168604A (en) * 1960-11-22 1965-02-02 Crushproof Tubing Co Process of and apparatus for making spirally corrugated rubber tubing using axially extensible helix
US3306962A (en) * 1965-03-29 1967-02-28 Building Products Of Canada Lt Plastic corrugated pipe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963749A (en) * 1958-11-13 1960-12-13 Hoover Co Continuous method of and apparatus for making extensible and flexible hose
US3168604A (en) * 1960-11-22 1965-02-02 Crushproof Tubing Co Process of and apparatus for making spirally corrugated rubber tubing using axially extensible helix
US3306962A (en) * 1965-03-29 1967-02-28 Building Products Of Canada Lt Plastic corrugated pipe

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