GB626749A - Improvements in or relating to the manufacture of rock drills - Google Patents
Improvements in or relating to the manufacture of rock drillsInfo
- Publication number
- GB626749A GB626749A GB6059/47A GB605947A GB626749A GB 626749 A GB626749 A GB 626749A GB 6059/47 A GB6059/47 A GB 6059/47A GB 605947 A GB605947 A GB 605947A GB 626749 A GB626749 A GB 626749A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bit
- rock drills
- drill bar
- march
- sleeve
- 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
- 239000011435 rock Substances 0.000 title abstract 3
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 238000011010 flushing procedure Methods 0.000 abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000000919 ceramic Substances 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 238000005520 cutting process Methods 0.000 abstract 1
- 239000010445 mica Substances 0.000 abstract 1
- 229910052618 mica group Inorganic materials 0.000 abstract 1
- 239000010453 quartz Substances 0.000 abstract 1
- 239000011819 refractory material Substances 0.000 abstract 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 238000003466 welding Methods 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
- E21B17/00—Drilling rods or pipes; Flexible drill strings; Kellies; Drill collars; Sucker rods; Cables; Casings; Tubings
- E21B17/02—Couplings; joints
- E21B17/04—Couplings; joints between rod or the like and bit or between rod and rod or the like
- E21B17/046—Couplings; joints between rod or the like and bit or between rod and rod or the like with ribs, pins, or jaws, and complementary grooves or the like, e.g. bayonet catches
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
626,749. Making rock drills. HELLEFORS BRUKS AKTIEBOLAG. March 3, 1947, No. 6059. Convention date, March 16, 1946. [Class 83 (ii)] In a method of manufacturing rock drills of the type having a bit 1, preferably provided with hard metal cutting edges 7, and a drill bar 2 provided with an axially extending flushing passage 3 connecting with a corresponding passage 4 in the bit, the bit 1 and the drill bar 2 are joined together by resistance flash welding. A sleeve 8, of mica, quartz, ceramic, or other suitable refractory material prevents fused metal from obstructing the flushing passage. A steel or copper rod may be inserted in the sleeve 8 to prevent crushing during striking, and is afterwards withdrawn. The end of the bit or drill bar may be formed with a cylindrical, taper, or wedge-shaped portion, the coacting end of the other part being formed with a corresponding recess.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE626749X | 1946-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB626749A true GB626749A (en) | 1949-07-20 |
Family
ID=20313399
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB6059/47A Expired GB626749A (en) | 1946-03-16 | 1947-03-03 | Improvements in or relating to the manufacture of rock drills |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB626749A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3356418A (en) * | 1965-01-09 | 1967-12-05 | Tungsten Carbide Developments | Coal-cutter pick with hard metal tip and method of making |
| US5098233A (en) * | 1990-10-29 | 1992-03-24 | Circle Machine Company | Carbide shank boring bar with steel head |
-
1947
- 1947-03-03 GB GB6059/47A patent/GB626749A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3356418A (en) * | 1965-01-09 | 1967-12-05 | Tungsten Carbide Developments | Coal-cutter pick with hard metal tip and method of making |
| US5098233A (en) * | 1990-10-29 | 1992-03-24 | Circle Machine Company | Carbide shank boring bar with steel head |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2308860A (en) | Means of drilling rock, concrete, and the like | |
| US2319528A (en) | Apparatus for drilling holes in stone | |
| US1539413A (en) | Lathe centering tool | |
| GB626749A (en) | Improvements in or relating to the manufacture of rock drills | |
| GB203039A (en) | Improvements in percussive rock drilling tools with renewable cutters | |
| GB593622A (en) | Improvements in or relating to drill bits, cutting tools and the like | |
| US2406536A (en) | Drilling anchor part for bolts or screw studs and its use | |
| GB599451A (en) | An improved boring bit for use in drilling coal, stone and the like | |
| GB423647A (en) | Improvements in stone boring tools, rock drills, and the like | |
| GB647736A (en) | A percussion drill and a method for its manufacture | |
| US2688264A (en) | Method of making rock drills | |
| GB668991A (en) | Improvements in rotary drill bits | |
| GB659359A (en) | Improvements in burr-drills | |
| US2160158A (en) | Drill | |
| US2118524A (en) | Rock drill | |
| US2557195A (en) | Tool for breaking concrete and the like | |
| US2653010A (en) | Rock drill bit | |
| GB410947A (en) | Improvements in rock drills | |
| US2029255A (en) | Method of making shank buttons | |
| GB636426A (en) | Improvements in rock drill bits and in the method of their manufacture | |
| US1664883A (en) | Method of welding bearing pins to legs of drill bits | |
| GB191205074A (en) | Improvements in the Manufacture of Twist Drills and the like. | |
| GB251686A (en) | Improvements in hammer rock drills | |
| GB122107A (en) | An Improved Stemming or Tamping Tool for use in Mining, Quarrying and like Operations. | |
| GB633999A (en) | Improvements in drill bits for hammer drills having hard metal cutting edges |