GB2013128A - An Extensible Beam Arrangement - Google Patents
An Extensible Beam ArrangementInfo
- Publication number
- GB2013128A GB2013128A GB7901189A GB7901189A GB2013128A GB 2013128 A GB2013128 A GB 2013128A GB 7901189 A GB7901189 A GB 7901189A GB 7901189 A GB7901189 A GB 7901189A GB 2013128 A GB2013128 A GB 2013128A
- Authority
- GB
- United Kingdom
- Prior art keywords
- support
- beam arrangement
- movement
- extensible beam
- relative
- 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.)
- Withdrawn
Links
- 238000005553 drilling Methods 0.000 abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 1
- 239000011435 rock 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
- 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
- E21B19/00—Handling rods, casings, tubes or the like outside the borehole, e.g. in the derrick; Apparatus for feeding the rods or cables
- E21B19/08—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods
- E21B19/084—Apparatus for feeding the rods or cables; Apparatus for increasing or decreasing the pressure on the drilling tool; Apparatus for counterbalancing the weight of the rods with flexible drawing means, e.g. cables
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (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)
- Mechanical Engineering (AREA)
- Earth Drilling (AREA)
Abstract
Rock drilling equipment includes a boom carrying an extensible beam arrangement supporting a drilling mast (12), the extensible beam arrangement (11) comprising a support (13) pivotally mounted on the boom, a first elongated element (14) slidably mounted on the support for movement longitudinally of the first element, a second elongated element (15) slidably mounted on the first element for movement longitudinally of the first element, means (16), e.g. a hydraulic cylinder for displacing first element (14) relative to support (13) and drive transmission means (17) e.g. cable 17a and pulley 17d sensitive to movement of the first element and adapted to move the second element relative to the support upon sensing relative movement between the support and first element. As shown mast (12) is extended 3 times, the extension of first element (14). <IMAGE>
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7901189A GB2013128A (en) | 1978-01-17 | 1979-01-12 | An Extensible Beam Arrangement |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB173978 | 1978-01-17 | ||
GB7901189A GB2013128A (en) | 1978-01-17 | 1979-01-12 | An Extensible Beam Arrangement |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2013128A true GB2013128A (en) | 1979-08-08 |
Family
ID=26236945
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7901189A Withdrawn GB2013128A (en) | 1978-01-17 | 1979-01-12 | An Extensible Beam Arrangement |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2013128A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0074549A2 (en) * | 1981-09-16 | 1983-03-23 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Movable arm, especially for a gripper |
-
1979
- 1979-01-12 GB GB7901189A patent/GB2013128A/en not_active Withdrawn
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0074549A2 (en) * | 1981-09-16 | 1983-03-23 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Movable arm, especially for a gripper |
EP0074549A3 (en) * | 1981-09-16 | 1983-08-10 | ZF FRIEDRICHSHAFEN Aktiengesellschaft | Movable arm, especially for a gripper |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
SE8000861L (en) | LIFTING EQUIPMENT FOR GOODS | |
NO844191L (en) | DEVELOPMENT OF WAVING MOVEMENTS AT SEA | |
BR8100978A (en) | TELESCOPIC CRANE BOOM WITH ROTATING EXTENSION / RETRACTION SCREWS | |
SE8104100L (en) | AIR PLATFORM DEVICE | |
NO175649C (en) | Protective device for piston rod of a hydraulic cylinder | |
US4251046A (en) | Extensible beam arrangement | |
FR2465869B1 (en) | HYDRAULICALLY DRILL ROD CONNECTION FOR DEEP DRILLING | |
GB2096097B (en) | Telescopic jib cranes | |
ES237395U (en) | Telescopically extendible mast crane | |
ITRM930545A1 (en) | ARM EXTENSION FOR GANTRY CRANES. | |
GB2013128A (en) | An Extensible Beam Arrangement | |
SE7703043L (en) | DEVICE FOR DOWNTING THE DRILL | |
SE8200894L (en) | DEVICE FOR A VEHICLE WITH A PENDANT CRANE | |
FR2499052B1 (en) | HOISTING MECHANISM AND MOUNTING OF A ROTATING MOBILE MAT | |
GB2005218A (en) | A lifting and handling equipment unit, especially for shipside operations | |
RO84373A (en) | HYDRAULIC DEVICE FOR PERCUSSION | |
SE7804054L (en) | MOUNTAIN DRILL | |
GB2015467A (en) | Hydraulically operated access equipment | |
SE8203252L (en) | MOUNTAIN voltage unit | |
SE8702100D0 (en) | DEVICE FOR HYDRAULICALLY CONTROLLED CRANE EXTENSION BOOMS | |
SE402003C (en) | DEVICE FOR LOADING DEVICES WITH TELESCOPICALLY EXTENDABLE CRANE ARM AND WITH HYDRAULIC CABLES BORN BY THE CRANE ARM | |
SE8700868L (en) | SET AND DEVICE FOR INCREASING THE LOAD HANDLING CAPACITY FOR STORAGE AND HANDLING EQUIPMENT | |
ES459207A1 (en) | Overhead maintenance platform lifting mechanism - has boom sections telescoping in both directions urged by single hydraulic ram | |
FR2656819B1 (en) | HYDRAULIC CLAMPING DEVICE. | |
SU765457A1 (en) | Unit for driving measuring instruments, such as seismic transmitters, into soil |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |