GB1296434A - - Google Patents
Info
- Publication number
- GB1296434A GB1296434A GB1296434DA GB1296434A GB 1296434 A GB1296434 A GB 1296434A GB 1296434D A GB1296434D A GB 1296434DA GB 1296434 A GB1296434 A GB 1296434A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sheath
- cable
- tube
- feb
- around
- 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
Links
- 239000002184 metal Substances 0.000 abstract 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract 1
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 238000001125 extrusion Methods 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 229910052760 oxygen Inorganic materials 0.000 abstract 1
- 239000001301 oxygen Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
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)
- Cable Accessories (AREA)
Abstract
1296434 Making fhermic lances FASSLER 4 Feb 1970 [21 Feb 1969] 5306/70 Heading B3A [Also in Divisions C7 D1 and F4] In a thermic lance for boring hard materials, (see Division F3-F4) a twisted wire cable 1 is surrounded by a fusible sheath 2 with a force fit (defined). The sheath 2 is gastight for oxygen to be passed along inside it to cause combustion of the end part of the previously heated cable and sheath. The sheath may be a tube into which the cable is forced or which is shrink-fitted around the cable or which is anchored to the cable by helical grooves (6), Fig. 5 (not shown), pressed into the sheath from outside. Alternatively, the sheath may be a sheet or strip of metal wrapped around the cable and having its longitudinal edges welded to form a tube. In another embodiment, the sheath is a metal tube formed around the cable by extrusion through a die.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH271369A CH497257A (en) | 1969-02-21 | 1969-02-21 | Burning tube for thermal drilling |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1296434A true GB1296434A (en) | 1972-11-15 |
Family
ID=4239917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1296434D Expired GB1296434A (en) | 1969-02-21 | 1970-02-04 |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT295372B (en) |
| CH (1) | CH497257A (en) |
| GB (1) | GB1296434A (en) |
| IL (1) | IL33917A (en) |
| SE (1) | SE357232B (en) |
-
1969
- 1969-02-21 CH CH271369A patent/CH497257A/en not_active IP Right Cessation
-
1970
- 1970-02-04 GB GB1296434D patent/GB1296434A/en not_active Expired
- 1970-02-17 IL IL3391770A patent/IL33917A/en unknown
- 1970-02-20 AT AT158070A patent/AT295372B/en not_active IP Right Cessation
- 1970-02-20 SE SE220570A patent/SE357232B/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| IL33917A (en) | 1974-06-30 |
| CH497257A (en) | 1970-10-15 |
| SE357232B (en) | 1973-06-18 |
| AT295372B (en) | 1971-12-27 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |