GB1270392A - Land drainage tubes - Google Patents

Land drainage tubes

Info

Publication number
GB1270392A
GB1270392A GB1963068A GB1963068A GB1270392A GB 1270392 A GB1270392 A GB 1270392A GB 1963068 A GB1963068 A GB 1963068A GB 1963068 A GB1963068 A GB 1963068A GB 1270392 A GB1270392 A GB 1270392A
Authority
GB
United Kingdom
Prior art keywords
tube
apertures
probe
april
heating
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
GB1963068A
Inventor
Geoffrey John Edney
Beresford Ivor Marshall
Edward Browell Atkinson
Edward Ronald Norman
Geoffrey William Smith
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.)
BXL Plastics Ltd
Original Assignee
Bakelite Xylonite 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 Bakelite Xylonite Ltd filed Critical Bakelite Xylonite Ltd
Priority to GB1963068A priority Critical patent/GB1270392A/en
Publication of GB1270392A publication Critical patent/GB1270392A/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
    • F16L9/12—Rigid pipes of plastics with or without reinforcement
    • F16L9/127—Rigid pipes of plastics with or without reinforcement the walls consisting of a single layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F1/00—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor
    • B26F1/0015—Perforating; Punching; Cutting-out; Stamping-out; Apparatus therefor specially adapted for perforating tubes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26F—PERFORATING; PUNCHING; CUTTING-OUT; STAMPING-OUT; SEVERING BY MEANS OTHER THAN CUTTING
    • B26F3/00—Severing by means other than cutting; Apparatus therefor
    • B26F3/06—Severing by using heat
    • B26F3/08—Severing by using heat with heated members
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B11/00—Drainage of soil, e.g. for agricultural purposes
    • E02B11/005—Drainage conduits

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Agronomy & Crop Science (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

1,270,392. Plastics pipes. BAKELITE XYLONITE Ltd. 21 April, 1969 [25 April, 1968], No. 19630/68. Heading F2P. A land drainage tube is made of a cellular plastics material, the wall of the tube being provided with a plurality of apertures each of which increases in size from the outside surface of the tube to the inside surface. The tube, made for instance of cellular polystyrene with a density not greater than 4À5 lb./cu. foot, has, as shown, apertures which have a uniform increase of width and which preferably extend, as inverse wedge slits, transversely relative to the axis of the tube. The exterior surface of the tube may be fluted the apertures being provided in the valleys between the flutes. The apertures may be formed by heating a probe 1 to a temperature between 180-500‹ C., and preferably between 250-350‹ C., with the leading edge of the probe hotter than the remainder or, by heating a punch from 75-125‹ C. Alternatively, the apertures may be formed by electric arcing, the tube containing electrically conductive material; by radio frequency discharge; by a diverging infra-red beam; or by a cone or wedge-shaped jet of heated compressed air. The apertures may also be formed by inserting a probe into the tube wall from the outside and either by causing to probe to vibrate or, by pivoting the heated probe about a point immediately above the outer surface of the tube.
GB1963068A 1968-04-25 1968-04-25 Land drainage tubes Expired GB1270392A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1963068A GB1270392A (en) 1968-04-25 1968-04-25 Land drainage tubes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1963068A GB1270392A (en) 1968-04-25 1968-04-25 Land drainage tubes

Publications (1)

Publication Number Publication Date
GB1270392A true GB1270392A (en) 1972-04-12

Family

ID=10132568

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1963068A Expired GB1270392A (en) 1968-04-25 1968-04-25 Land drainage tubes

Country Status (1)

Country Link
GB (1) GB1270392A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999015734A1 (en) * 1997-09-25 1999-04-01 Gerhard Fleischhacker Fluid feed or discharge device
EP1602461A1 (en) * 2004-06-02 2005-12-07 Emil Bröll GmbH & Co Accurate, thermal cutting device with limited tolerance for cutting textiles made of fusible materials
CN106926319A (en) * 2017-05-17 2017-07-07 昆山佑威光电材料有限公司 A kind of die-cutting machine of lightization mould

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999015734A1 (en) * 1997-09-25 1999-04-01 Gerhard Fleischhacker Fluid feed or discharge device
EP1602461A1 (en) * 2004-06-02 2005-12-07 Emil Bröll GmbH & Co Accurate, thermal cutting device with limited tolerance for cutting textiles made of fusible materials
CN106926319A (en) * 2017-05-17 2017-07-07 昆山佑威光电材料有限公司 A kind of die-cutting machine of lightization mould

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