GB879784A - Releasable coupling for ventilation pipes, particularly for air ducts in mines - Google Patents

Releasable coupling for ventilation pipes, particularly for air ducts in mines

Info

Publication number
GB879784A
GB879784A GB3272258A GB3272258A GB879784A GB 879784 A GB879784 A GB 879784A GB 3272258 A GB3272258 A GB 3272258A GB 3272258 A GB3272258 A GB 3272258A GB 879784 A GB879784 A GB 879784A
Authority
GB
United Kingdom
Prior art keywords
sleeve
strap
pipe
pipes
beaded edges
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
GB3272258A
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.)
FRIEDRICH THELEMANN
Original Assignee
FRIEDRICH THELEMANN
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 FRIEDRICH THELEMANN filed Critical FRIEDRICH THELEMANN
Priority to GB3272258A priority Critical patent/GB879784A/en
Publication of GB879784A publication Critical patent/GB879784A/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
    • F16L17/00—Joints with packing adapted to sealing by fluid pressure
    • F16L17/02—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket
    • F16L17/04—Joints with packing adapted to sealing by fluid pressure with sealing rings arranged between outer surface of pipe and inner surface of sleeve or socket with longitudinally split or divided sleeve

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Joints Allowing Movement (AREA)
  • Quick-Acting Or Multi-Walled Pipe Joints (AREA)

Abstract

879,784. Pipe couplings. THELEMANN, F., and HAUSMANN, B. Oct. 14, 1958, No. 32722/58. Class 99(1). A releasable coupling for ventilation pipes, such as air ducts in mines, comprises in each of the adjacent ends of wooden pipes 1, 2 a metal or synthetic plastic annular member 3 having a cylindrical main portion 3<SP>2</SP> secured by screws or rivets to the inner side of the pipe and a circumferential flange 3<SP>1</SP> projecting outwardly from the portion 3<SP>2</SP> and having its free edge bent round to form an annular bead in engagement with the outer side of the pipe, a rubber or synthetic plastic sleeve 5 encircling the pipe ends and the members 3 and surrounded by a retaining strap 6, e.g. of metal, of dome-shaped or convex cross-section having beaded edges 6<SP>2</SP> which are urged by a toggle-type closing mechanism 7 into tight engagement with the sleeve 5 to form a leakproof connection between the pipes 1, 2. As shown, the sleeve 5 is of semi-circular crosssection and has its peripheral edges provided with annular dovetail-shaped beads 51 projecting inwardly and outwardly of the sleeve 5 and having grooved sealing surfaces 5<SP>2</SP>, the inward projections of the beads being acted upon by fluid pressure and the outward projections by the beaded edges 6<SP>2</SP>. The sleeve 5 fits snugly in the strap 6 being held therein by the beaded edges 6<SP>2</SP>. Alternatively, the sleeve 5 is permanently connected to the strap 6 by vulcanizing or by an adhesive. In a modification the sleeve 5 is replaced by a plain rubber tubular sleeve embracing the flanges 3<SP>1</SP> of the member 3 and held in position on the pipe ends by elastic action. The ends of the strap 6 are filleted so that the beaded edges 6<SP>2</SP> slide one within the other, and center themselves as the strap is tightened around the pipes.
GB3272258A 1958-10-14 1958-10-14 Releasable coupling for ventilation pipes, particularly for air ducts in mines Expired GB879784A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3272258A GB879784A (en) 1958-10-14 1958-10-14 Releasable coupling for ventilation pipes, particularly for air ducts in mines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3272258A GB879784A (en) 1958-10-14 1958-10-14 Releasable coupling for ventilation pipes, particularly for air ducts in mines

Publications (1)

Publication Number Publication Date
GB879784A true GB879784A (en) 1961-10-11

Family

ID=10343042

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3272258A Expired GB879784A (en) 1958-10-14 1958-10-14 Releasable coupling for ventilation pipes, particularly for air ducts in mines

Country Status (1)

Country Link
GB (1) GB879784A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276208A (en) * 1993-03-20 1994-09-21 Nuaire Ltd Fan casing and flange construction.

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2276208A (en) * 1993-03-20 1994-09-21 Nuaire Ltd Fan casing and flange construction.
GB2276208B (en) * 1993-03-20 1997-03-12 Nuaire Ltd Fan casing

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