GB1004696A - Improvements in or relating to percussion drilling apparatus - Google Patents
Improvements in or relating to percussion drilling apparatusInfo
- Publication number
- GB1004696A GB1004696A GB1688565A GB1688565A GB1004696A GB 1004696 A GB1004696 A GB 1004696A GB 1688565 A GB1688565 A GB 1688565A GB 1688565 A GB1688565 A GB 1688565A GB 1004696 A GB1004696 A GB 1004696A
- Authority
- GB
- United Kingdom
- Prior art keywords
- piston
- rearward
- chambers
- compressed
- air
- 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
- 238000005553 drilling Methods 0.000 title 1
- 238000009527 percussion Methods 0.000 title 1
- 239000012530 fluid Substances 0.000 abstract 1
- 238000005192 partition 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
- E21B4/00—Drives for drilling, used in the borehole
- E21B4/06—Down-hole impacting means, e.g. hammers
- E21B4/14—Fluid operated hammers
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
1,004,696. Boring earth, &c. MISSION MANUFACTURING CO. Sept. 13, 1961 [Dec. 5, 1960], No, 16885/65. Divided out of 1,004,694. Heading E1F. [Also in Division B4] In a down-the-hole percussive drill having a hollow casing 116 and a hammer piston 166, means arranged to expedite the reversal of motion of the piston comprises a pressure chamber 163 confined in the rearward end of the casing by a partition 162, and means 169, 143, 145 arranged to seal the chamber at the end of the rearward movement of the piston to increase fluid pressure resisting the movement. After the piston end 169 passes the exhaust port 157 during the rearward stroke, the air in chambers 175, 165, 163 is compressed, but after the end 169 of the piston passes the ports 143, 145 only the air in the chambers 175, 165 is compressed.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US7361360A | 1960-12-05 | 1960-12-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1004696A true GB1004696A (en) | 1965-09-15 |
Family
ID=22114749
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1688565A Expired GB1004696A (en) | 1960-12-05 | 1961-09-13 | Improvements in or relating to percussion drilling apparatus |
| GB1688465A Expired GB1004695A (en) | 1960-12-05 | 1961-09-13 | Improvements in or relating to percussion drilling apparatus |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1688465A Expired GB1004695A (en) | 1960-12-05 | 1961-09-13 | Improvements in or relating to percussion drilling apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (2) | GB1004696A (en) |
-
1961
- 1961-09-13 GB GB1688565A patent/GB1004696A/en not_active Expired
- 1961-09-13 GB GB1688465A patent/GB1004695A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1004695A (en) | 1965-09-15 |
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