GB646872A - Improvements in or relating to rotary percussion drills and processes of making the same - Google Patents
Improvements in or relating to rotary percussion drills and processes of making the sameInfo
- Publication number
- GB646872A GB646872A GB12606/48A GB1260648A GB646872A GB 646872 A GB646872 A GB 646872A GB 12606/48 A GB12606/48 A GB 12606/48A GB 1260648 A GB1260648 A GB 1260648A GB 646872 A GB646872 A GB 646872A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rod
- edge
- socket
- bit
- slit
- 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
- 238000000034 method Methods 0.000 title 1
- 238000009527 percussion Methods 0.000 title 1
- 230000001154 acute effect Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 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)
- Percussive Tools And Related Accessories (AREA)
- Drilling And Boring (AREA)
Abstract
646,872. Percussive drills. TIMKEN ROLLER BEARING CO. May 7, 1948, No. 12606. Convention date, July 12, 1947. [Class 124] A drill bit for a rotary percussive drill has an axial socket of which the circumferential side wall has a longitudinal slit with one edge offset inwardly into locking engagement with the end of a drill rod disposed in the socket. As shown, a bit B having buttresses 5 and a socket with walls 2 has slots 6 made radially therein, the edge 8 being offset inwardly by mechanical pressure or, where the slit is made nearer one buttress than the other, by heating and quenching. The slit may terminate in a round hole 7. The slit may be made at an obtuse angle to the axis of the bit to form an acute angled edge and may engage a flat surface or the corner of a polygonal rod. The socket and rod may taper, Fig. 6, not shown and the slits may also taper, Fig. 11, not shown. The rod may be in position before offsetting the edge or the bit may be made with the edge offset before attachment to the rod.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US646872XA | 1947-07-12 | 1947-07-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB646872A true GB646872A (en) | 1950-11-29 |
Family
ID=22057641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB12606/48A Expired GB646872A (en) | 1947-07-12 | 1948-05-07 | Improvements in or relating to rotary percussion drills and processes of making the same |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB646872A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10057877A1 (en) * | 2000-11-22 | 2002-05-29 | Lueken Gisela | wellhead |
| WO2012006671A1 (en) * | 2010-07-14 | 2012-01-19 | George Johan Strydom | Modular drilling system |
| EP2638242A4 (en) * | 2010-11-12 | 2017-10-11 | Vermeer Manufacturing Company | Underground drilling apparatus |
-
1948
- 1948-05-07 GB GB12606/48A patent/GB646872A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10057877A1 (en) * | 2000-11-22 | 2002-05-29 | Lueken Gisela | wellhead |
| DE10057877C2 (en) * | 2000-11-22 | 2002-10-17 | Lueken Gisela | wellhead |
| WO2012006671A1 (en) * | 2010-07-14 | 2012-01-19 | George Johan Strydom | Modular drilling system |
| EP2638242A4 (en) * | 2010-11-12 | 2017-10-11 | Vermeer Manufacturing Company | Underground drilling apparatus |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| ES464176A1 (en) | Radially balanced rotary drill | |
| GB1463785A (en) | Spade drill bit | |
| GB1518950A (en) | Drilling device | |
| GB646872A (en) | Improvements in or relating to rotary percussion drills and processes of making the same | |
| US2317615A (en) | Countersink stop | |
| GB1097549A (en) | Percussion bit and chuck assembly and a percussion bit for incorporation in such an assembly | |
| GB2005572A (en) | A drilling tool with a notched shank | |
| GB1366438A (en) | Self drilling toggle bolt assembly | |
| GB713196A (en) | Improvements in compressed air hammers | |
| GB617150A (en) | A new or improved expansible plug | |
| GB618489A (en) | Improvements connected with wall or like plugs | |
| GB1506314A (en) | Rotary percussion earth boring bit | |
| GB660816A (en) | Improvements in or relating to a rotary percussion drill | |
| GB431711A (en) | Improvements relating to drilling, boring and like tools | |
| GB1083585A (en) | Tubular wall plug | |
| GB189021A (en) | Drills | |
| US1401353A (en) | Drill | |
| GB265043A (en) | Improvements in or relating to rock drills and like tools | |
| GB1191934A (en) | Improvements relating to Drills and Plugs to be used therewith | |
| GB658631A (en) | Improvements in percussive drill bits | |
| GB620103A (en) | Improvements relating to trepanning tools | |
| GB1023768A (en) | Improvements in drills | |
| GB644145A (en) | Improvements in drill bits for hammer drills having hard metal cutting edges and hard metal bodies forming such cutting edges | |
| SU145191A1 (en) | Hole Drilling Device | |
| GB1126103A (en) | Masonry drilling bit |