GB762800A - Improvements in or relating to tubing - Google Patents

Improvements in or relating to tubing

Info

Publication number
GB762800A
GB762800A GB1425754A GB1425754A GB762800A GB 762800 A GB762800 A GB 762800A GB 1425754 A GB1425754 A GB 1425754A GB 1425754 A GB1425754 A GB 1425754A GB 762800 A GB762800 A GB 762800A
Authority
GB
United Kingdom
Prior art keywords
strip
wound
helical
flexible
external
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
GB1425754A
Inventor
Frederick Joseph Grove
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.)
UNI TUBES Ltd
Original Assignee
UNI TUBES 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 UNI TUBES Ltd filed Critical UNI TUBES Ltd
Priority to GB1425754A priority Critical patent/GB762800A/en
Publication of GB762800A publication Critical patent/GB762800A/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
    • F16L59/00—Thermal insulation in general
    • F16L59/06—Arrangements using an air layer or vacuum

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Insulating Bodies (AREA)

Abstract

762,800. Flexible tubing. UNI-TUBES, Ltd. May 12, 1955 [May 14, 1954], No. 14257/54. Class 99(2) A tube comprises a flexible inner layer 1 formed from strip material and having at last one helical rib of substantially uniform pitch, and an outer layer of helically wound, flexible strip material 6 engaging the rib and defining therefwith an insulating air channel 2. As shown, mild steel strip is wound on to a stationary mandrel, the wound strip being drawn off the mandrel by a tool comprising external and internal members respectively provided with internal and external co-operating two-start threads and between which the material is gripped, the shape of those threads being such as to form in the wound strip two flatbased helical channels 2, 3 separated by helical.ribs 4, 5. A strip of waterproofed crepe paper 6 is helically wound over the metal tube, the pitch of the winding being about half the width of the strip.
GB1425754A 1954-05-14 1954-05-14 Improvements in or relating to tubing Expired GB762800A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1425754A GB762800A (en) 1954-05-14 1954-05-14 Improvements in or relating to tubing

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1425754A GB762800A (en) 1954-05-14 1954-05-14 Improvements in or relating to tubing

Publications (1)

Publication Number Publication Date
GB762800A true GB762800A (en) 1956-12-05

Family

ID=10037879

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1425754A Expired GB762800A (en) 1954-05-14 1954-05-14 Improvements in or relating to tubing

Country Status (1)

Country Link
GB (1) GB762800A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268786A (en) * 1992-07-16 1994-01-19 Smiths Industries Plc Tubing with a humidifier
EP0697559A3 (en) * 1994-08-17 1996-09-04 Gerhard Pirchl Method of making a heat shield, and heat shield made by the method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2268786A (en) * 1992-07-16 1994-01-19 Smiths Industries Plc Tubing with a humidifier
EP0697559A3 (en) * 1994-08-17 1996-09-04 Gerhard Pirchl Method of making a heat shield, and heat shield made by the method
US5981082A (en) * 1994-08-17 1999-11-09 Pirchl; Gerhard Heat shield

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