GB1381906A - Thermic lance for the production of aperatures in concrete, rock, stone walls etc - Google Patents

Thermic lance for the production of aperatures in concrete, rock, stone walls etc

Info

Publication number
GB1381906A
GB1381906A GB409172A GB409172A GB1381906A GB 1381906 A GB1381906 A GB 1381906A GB 409172 A GB409172 A GB 409172A GB 409172 A GB409172 A GB 409172A GB 1381906 A GB1381906 A GB 1381906A
Authority
GB
United Kingdom
Prior art keywords
tube
enclosing
oxygen
rods
thermic
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
GB409172A
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
Publication of GB1381906A publication Critical patent/GB1381906A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH DRILLING; MINING
    • E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B7/00—Special methods or apparatus for drilling
    • E21B7/14—Drilling by use of heat, e.g. flame drilling
    • E21B7/146—Thermal lances

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Treatment Of Steel In Its Molten State (AREA)
  • Furnace Charging Or Discharging (AREA)
  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Abstract

1381906 Thermic lances E BRANDENBERGER 28 Jan 1972 [5 Feb 1971] 4091/72 Heading F4T A method for manufacturing a thermic lance comprises the steps of introducing a plurality of metallic core-rods into a metallic tube having a circular cross-sectional shape, deforming the tube to a non-circular shape over the whole length thereof except at least at one of its end parts, the tube having means for connection to an oxygen supply at one end, forming in the vicinity of the oxygen connection means a longitudinally curved zone in the tube and in the core-rods, the non-circular shape and the longitudinally curved zone being formed in a single pressing operation. The non-circular shape of the tube may be elliptical, triangular, polygonal, or half-round. The thermic lance 1 produced by the method of the invention incorporates an iron enclosing-tube 2 containing iron core-rods 3. In use oxygen is passed along ducts 5 formed within the enclosing-tube. It is preferred that the ratio of the total metal area to the total duct area in a cross-section of the lance should be between 11 : 1 and 16 : 1. The enclosing-tube 2 is provided at each end with an external thread 4 so that two such enclosing- tubes may be joined by a coupling sleeve or so that the enclosing-tube 2 may be connected to an oxygen-supply hose. The longitudinally curved zone 6 is preferably offset by a distance h which is between <SP>1</SP>/ 6 and ¢ of the external diameter of the part of the enclosing-tube having a circular section. Specification 1,254,885 is referred to.
GB409172A 1971-02-05 1972-01-28 Thermic lance for the production of aperatures in concrete, rock, stone walls etc Expired GB1381906A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH172571A CH556724A (en) 1971-02-05 1971-02-05 OXYGEN LENS FOR CREATING OPENINGS IN CONCRETE, ROCK, BUILDING WALLS AND THE LIKE.

Publications (1)

Publication Number Publication Date
GB1381906A true GB1381906A (en) 1975-01-29

Family

ID=4217134

Family Applications (1)

Application Number Title Priority Date Filing Date
GB409172A Expired GB1381906A (en) 1971-02-05 1972-01-28 Thermic lance for the production of aperatures in concrete, rock, stone walls etc

Country Status (12)

Country Link
US (1) US3738288A (en)
JP (1) JPS5211126B1 (en)
AT (1) AT308615B (en)
BE (1) BE778861R (en)
CA (1) CA942653A (en)
CH (1) CH556724A (en)
DE (1) DE2202868C3 (en)
FR (1) FR2124967A6 (en)
GB (1) GB1381906A (en)
IT (1) IT1044969B (en)
NL (1) NL167005C (en)
SE (1) SE368965B (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH586874A5 (en) * 1974-01-23 1977-04-15 Brandenberger Ernst
DE2860972D1 (en) * 1977-07-22 1981-11-12 Thormack Limited A method of sealing bridge deck joints
US4391209A (en) * 1981-06-16 1983-07-05 Arcair Company Exothermic cutting electrode
US4437649A (en) 1981-06-16 1984-03-20 Arcair Company Exothermic cutting electrode
US4401040A (en) * 1981-10-21 1983-08-30 Volcano Corporation Thermal torch
US4697791A (en) * 1985-12-31 1987-10-06 Arcair Company Exothermic cutting electrode
US4864093A (en) * 1988-10-05 1989-09-05 Arcair Company Exothermic cutting electrode
US5000426A (en) * 1989-08-15 1991-03-19 Edna Corporation Exothermic cutting torch
US5086720A (en) * 1991-01-25 1992-02-11 Kahlil Gibran Furnace for controllable combustion of thermite
US5622672A (en) * 1995-03-24 1997-04-22 Alloy Surfaces Co. Ignition of thermal lance and means and method for use therewith and therefor
DE19751918C2 (en) * 1997-11-22 2000-01-20 Mannesmann Sachs Ag Indentation in a plastically deformable material
EP1847678A1 (en) 2006-04-13 2007-10-24 Air Products and Chemicals, Inc. A thermic lance
CL2017000419A1 (en) * 2017-02-21 2017-12-15 Trefimet S A Lanza termica consumible por reaccion exotermica que es utilizada para perforar y/o cortar cualquier tipo de material de diferentes espesores y dimensiones, posee un cuerpo tubular exterior principal y al menos un perfil hueco interior que tiene una seccion transversal diferente dispuestos en forma concentrica formando entre cada uno de los perfiles huecos interiores y/o el cuerpo tubular exterior principal cavidades que configuran pasajes de gas oxidante.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3460223A (en) * 1967-08-02 1969-08-12 Zsolt Gyorgy Berczes Device for fixing holes by method of smelting,especially into building walls made of concrete,granite,sandstone or limestone,and method of producing the device
CH484715A (en) * 1968-01-03 1970-01-31 Brandenberger Ernst Gas burning lance for creating openings in concrete, stone, building walls and the like.
US3500774A (en) * 1968-11-04 1970-03-17 Robert Meier Means for cutting hard construction materials

Also Published As

Publication number Publication date
CH556724A (en) 1974-12-13
FR2124967A6 (en) 1972-09-22
DE2202868A1 (en) 1972-08-17
JPS5211126B1 (en) 1977-03-29
US3738288A (en) 1973-06-12
CA942653A (en) 1974-02-26
NL167005B (en) 1981-05-15
AT308615B (en) 1973-07-10
DE2202868B2 (en) 1981-05-07
BE778861R (en) 1972-05-30
IT1044969B (en) 1980-04-21
DE2202868C3 (en) 1982-01-21
SE368965B (en) 1974-07-29
NL167005C (en) 1981-10-15
NL7201458A (en) 1972-08-08

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years