GB229414A - Improvements in air tubes or pipes for use in colliery ventilation and the like - Google Patents

Improvements in air tubes or pipes for use in colliery ventilation and the like

Info

Publication number
GB229414A
GB229414A GB3005123A GB3005123A GB229414A GB 229414 A GB229414 A GB 229414A GB 3005123 A GB3005123 A GB 3005123A GB 3005123 A GB3005123 A GB 3005123A GB 229414 A GB229414 A GB 229414A
Authority
GB
United Kingdom
Prior art keywords
pipes
air tubes
colliery ventilation
metal
lewis
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
GB3005123A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB3005123A priority Critical patent/GB229414A/en
Publication of GB229414A publication Critical patent/GB229414A/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
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal
    • F16L9/04—Reinforced pipes

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tents Or Canopies (AREA)
  • Building Environments (AREA)
  • Duct Arrangements (AREA)

Abstract

229,414. Lewis, R. D., (trading as Lewis & Son, W.). Nov. 29, 1923. Metal pipes and tubes.-Colliery ventilation pipes of large diameter and made of comparatively thin sheet metal are strengthened at their ends and at intermediate points by metal stiffeners E which pass diametrically across the tube and has flanged ends for riveting to the tube. Where the stiffeners cross, each is slotted to form an interlocking joint, or one stiffener may be formed in two parts and riveted to the other.
GB3005123A 1923-11-29 1923-11-29 Improvements in air tubes or pipes for use in colliery ventilation and the like Expired GB229414A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3005123A GB229414A (en) 1923-11-29 1923-11-29 Improvements in air tubes or pipes for use in colliery ventilation and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3005123A GB229414A (en) 1923-11-29 1923-11-29 Improvements in air tubes or pipes for use in colliery ventilation and the like

Publications (1)

Publication Number Publication Date
GB229414A true GB229414A (en) 1925-02-26

Family

ID=10301457

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3005123A Expired GB229414A (en) 1923-11-29 1923-11-29 Improvements in air tubes or pipes for use in colliery ventilation and the like

Country Status (1)

Country Link
GB (1) GB229414A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820658A (en) * 1953-12-04 1958-01-21 Emil A Bender Connecting means for structural elements
GB2159102A (en) * 1984-05-17 1985-11-27 Psi Star Inc Process and apparatus for etching copper

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2820658A (en) * 1953-12-04 1958-01-21 Emil A Bender Connecting means for structural elements
GB2159102A (en) * 1984-05-17 1985-11-27 Psi Star Inc Process and apparatus for etching copper

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