ZA763924B - Hydraulic levelling system - Google Patents
Hydraulic levelling systemInfo
- Publication number
- ZA763924B ZA763924B ZA00763924A ZA763924A ZA763924B ZA 763924 B ZA763924 B ZA 763924B ZA 00763924 A ZA00763924 A ZA 00763924A ZA 763924 A ZA763924 A ZA 763924A ZA 763924 B ZA763924 B ZA 763924B
- Authority
- ZA
- South Africa
- Prior art keywords
- levelling system
- hydraulic levelling
- hydraulic
- levelling
- Prior art date
Links
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
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/025—Rock drills, i.e. jumbo drills
-
- 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
- E21B7/02—Drilling rigs characterised by means for land transport with their own drive, e.g. skid mounting or wheel mounting
- E21B7/022—Control of the drilling operation; Hydraulic or pneumatic means for activation or operation
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)
- Earth Drilling (AREA)
- Jib Cranes (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB27858/75A GB1525511A (en) | 1975-07-02 | 1975-07-02 | Hydraulic parallelmotion system for drilling machines etc |
Publications (1)
Publication Number | Publication Date |
---|---|
ZA763924B true ZA763924B (en) | 1978-02-22 |
Family
ID=10266464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ZA00763924A ZA763924B (en) | 1975-07-02 | 1976-07-01 | Hydraulic levelling system |
Country Status (6)
Country | Link |
---|---|
US (1) | US4116409A (fr) |
CA (1) | CA1056367A (fr) |
ES (1) | ES449422A1 (fr) |
GB (1) | GB1525511A (fr) |
SE (1) | SE7607558L (fr) |
ZA (1) | ZA763924B (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB8404005D0 (en) * | 1984-02-15 | 1984-03-21 | Boart Int Ltd | Drilling boom |
FI96054C (fi) * | 1994-08-30 | 1996-04-25 | Tamrock Oy | Sovitelma kallionporauslaitteen puomissa |
US7789167B2 (en) * | 2008-04-16 | 2010-09-07 | The Boeing Company | Power assist lever arm attachment |
US10184295B2 (en) | 2014-10-02 | 2019-01-22 | Caterpillar Inc. | Machine leveling assembly and method |
CN108533185B (zh) * | 2018-05-24 | 2023-08-15 | 四川宏华石油设备有限公司 | 一种钻机移运调平装置 |
CN113582095B (zh) * | 2021-06-30 | 2023-04-07 | 江苏徐工工程机械研究院有限公司 | 举高类消防车工作平台稳定性自适应控制方法、系统及装置 |
Family Cites Families (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA886975A (en) * | 1971-11-30 | Atlas Copco Aktiebolag | Hydraulic parallel motion means for drill boom supported rock drilling apparatus | |
US3082842A (en) * | 1956-08-10 | 1963-03-26 | Mccabe Powers Body Company | Mobile work platforms |
US3100025A (en) * | 1961-11-01 | 1963-08-06 | John L Shennum | Aerial lift device |
NO115050B (fr) * | 1964-07-09 | Ingersoll-Rand World Trade Ltd | ||
DE1456431A1 (de) * | 1965-04-01 | 1969-02-27 | Comitetul De Stat Pentru Cultu | Vorrichtung zur Anzeige der Kopflage bei Kraenen mit Gelenkarmen,insbesondere bei Filmkamerakraenen |
FI40624B (fr) * | 1965-12-14 | 1968-12-31 | Tampella Oy Ab | |
SE364091B (fr) * | 1966-11-14 | 1974-02-11 | Atlas Copco Ab | |
US3590930A (en) * | 1968-12-04 | 1971-07-06 | Teuvo Tapio Gronfors | Arrangement for guiding a rock drill |
US3616940A (en) * | 1970-03-30 | 1971-11-02 | Baker Equipment Eng Co | Boom structure for utility trucks and the like |
US3896885A (en) * | 1970-12-11 | 1975-07-29 | Skanska Cementgjuteriet Ab | System for automatically aligning and/or moving in a parallel movement path a guide seating structure adapted for guiding the movement of a tool mounted thereon |
US3721304A (en) * | 1971-05-04 | 1973-03-20 | Gardner Denver Co | Directional control for rock drill feed support |
US3791460A (en) * | 1972-10-12 | 1974-02-12 | K Mustafin | Program control of the boom positioner and the feeder of the drilling tool of a self-propelled drilling |
DE2250405C3 (de) * | 1972-10-13 | 1975-08-07 | Institut Gornowo Dela Akademii Nauk Kasachskoj Ssr, Alma-Ata (Sowjetunion) | Einrichtung zur Programmsteuerung des Auslegerbohrarms und der Vorschubvorrichtung eines Bohrwerkzeuges von selbstfahrenden Bohrwagen |
SE374164B (fr) * | 1973-07-03 | 1975-02-24 | Atlas Copco Ab | |
US3980142A (en) * | 1975-09-10 | 1976-09-14 | Grigoriev Vladimir Konstantino | Drilling boom |
-
1975
- 1975-07-02 GB GB27858/75A patent/GB1525511A/en not_active Expired
-
1976
- 1976-07-01 ES ES449422A patent/ES449422A1/es not_active Expired
- 1976-07-01 US US05/701,803 patent/US4116409A/en not_active Expired - Lifetime
- 1976-07-01 ZA ZA00763924A patent/ZA763924B/xx unknown
- 1976-07-01 SE SE7607558A patent/SE7607558L/xx unknown
- 1976-07-02 CA CA256,182A patent/CA1056367A/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES449422A1 (es) | 1977-07-01 |
SE7607558L (sv) | 1977-01-03 |
CA1056367A (fr) | 1979-06-12 |
US4116409A (en) | 1978-09-26 |
GB1525511A (en) | 1978-09-20 |
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