GB311064A - Improvements relating to drills for drilling shot holes in coal and similar material - Google Patents
Improvements relating to drills for drilling shot holes in coal and similar materialInfo
- Publication number
- GB311064A GB311064A GB1049528A GB1049528A GB311064A GB 311064 A GB311064 A GB 311064A GB 1049528 A GB1049528 A GB 1049528A GB 1049528 A GB1049528 A GB 1049528A GB 311064 A GB311064 A GB 311064A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coal
- drills
- similar material
- improvements relating
- shot holes
- 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
- 239000003245 coal Substances 0.000 title abstract 3
- 238000005553 drilling Methods 0.000 title abstract 2
- 239000000463 material Substances 0.000 title 1
- 239000012530 fluid 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
- E21B44/00—Automatic control systems specially adapted for drilling operations, i.e. self-operating systems which function to carry out or modify a drilling operation without intervention of a human operator, e.g. computer-controlled drilling systems; Systems specially adapted for monitoring a plurality of drilling variables or conditions
- E21B44/02—Automatic control of the tool feed
- E21B44/08—Automatic control of the tool feed in response to the amplitude of the movement of the percussion tool, e.g. jump or recoil
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25H—WORKSHOP EQUIPMENT, e.g. FOR MARKING-OUT WORK; STORAGE MEANS FOR WORKSHOPS
- B25H1/00—Work benches; Portable stands or supports for positioning portable tools or work to be operated on thereby
- B25H1/0021—Stands, supports or guiding devices for positioning portable tools or for securing them to the work
- B25H1/0057—Devices for securing hand tools to the work
- B25H1/0064—Stands attached to the workpiece
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)
- Drilling And Boring (AREA)
Abstract
311,064. Donaldson, J. April 10, 1928. Drills.-Machines for drilling shot-holes in coal &c. are supported on a strut 1 by an adjustable collar 5 to which is pivoted a rack 8 engaging the coal face. The fluid or electrically operated drill has a lug 10 sliding on the rack bar for feed by a lever 12 a spring pawl 15 preventing reverse movement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1049528A GB311064A (en) | 1928-04-10 | 1928-04-10 | Improvements relating to drills for drilling shot holes in coal and similar material |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1049528A GB311064A (en) | 1928-04-10 | 1928-04-10 | Improvements relating to drills for drilling shot holes in coal and similar material |
Publications (1)
Publication Number | Publication Date |
---|---|
GB311064A true GB311064A (en) | 1929-05-09 |
Family
ID=9968898
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1049528A Expired GB311064A (en) | 1928-04-10 | 1928-04-10 | Improvements relating to drills for drilling shot holes in coal and similar material |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB311064A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3009516A1 (en) * | 1979-04-05 | 1980-10-16 | Hougen Everett D | DRILLING MACHINE WITH MAGNETIC BASE |
-
1928
- 1928-04-10 GB GB1049528A patent/GB311064A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3009516A1 (en) * | 1979-04-05 | 1980-10-16 | Hougen Everett D | DRILLING MACHINE WITH MAGNETIC BASE |
DE3050613A1 (en) * | 1979-04-05 | 1982-10-07 | Everett D Hougen | DRILLING MACHINE WITH MAGNETIC BASE |
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