GB584647A - Improvements in or relating to rock drill mountings - Google Patents
Improvements in or relating to rock drill mountingsInfo
- Publication number
- GB584647A GB584647A GB127845A GB127845A GB584647A GB 584647 A GB584647 A GB 584647A GB 127845 A GB127845 A GB 127845A GB 127845 A GB127845 A GB 127845A GB 584647 A GB584647 A GB 584647A
- Authority
- GB
- United Kingdom
- Prior art keywords
- screw
- pawl
- pneumatic motor
- column
- casing
- 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
- 239000011435 rock Substances 0.000 title 1
- 230000002441 reversible effect Effects 0.000 abstract 3
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
- 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
- E21B19/081—Screw-and-nut feed mechanisms
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)
- Forklifts And Lifting Vehicles (AREA)
- Movable Scaffolding (AREA)
Abstract
584,647. Lifting jacks. HOLMAN BROS.' Ltd., and HOLMAN, A. T. Jan. 16, 1945' No. 1278. [Class 78 (iii)] [Also in Group XXIII] An extensible column for use as a lifting jack comprises two members screwed together, one member being supported in a casing adapted to engage against a floor, wall or other fixed surface, the column being extended or retracted by rotating this member in either direction by means of a pneumatic motor mounted on the casing. In the form shown, the hollow lower end of a column 5 engages a square-threaded jack screw 7 the unthreaded lower end of which is supported on a ball race 8 in a casing 9 and is surrounded by a tubular ratchet wheel 13. The latter carries internal teeth engaged by a reversible pawl 14 carried by the screw. 7, and external teeth engaged by a rack in the piston 15 of a double-acting pneumatic motor 16. The pawl 14 has two flat faces and a projection 29 engageable in a groove in the screw 7 and co-operating with a spring-pressed thimble 30 in the screw. The pawl is held in position in a recess in the scraw by a disc 33, and is carried at the lower end of a spill 34 the upper end of which carries a pin 25 engageable by a reversing ring 26. The reversible pawl may be replaced by a pair of oppositelyacting pawls, and the screw might be driven through a worm and worm wheel by a reversible rotary pneumatic motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB127845A GB584647A (en) | 1945-01-16 | 1945-01-16 | Improvements in or relating to rock drill mountings |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB127845A GB584647A (en) | 1945-01-16 | 1945-01-16 | Improvements in or relating to rock drill mountings |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB584647A true GB584647A (en) | 1947-01-20 |
Family
ID=9719179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB127845A Expired GB584647A (en) | 1945-01-16 | 1945-01-16 | Improvements in or relating to rock drill mountings |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB584647A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720430A (en) * | 2012-06-18 | 2012-10-10 | 哈尔滨工业大学 | Coaxial integrated gyration and excitation drive device of drilling tools |
| CN102735496A (en) * | 2012-06-18 | 2012-10-17 | 哈尔滨工业大学 | Mechanical self-adaptive drilling coring loading mechanism depending on accumulated energy of spring |
| CN107939295A (en) * | 2017-12-31 | 2018-04-20 | 重庆聚亨机械有限公司 | Rock drilling machinery hydraulic pressure integration drill carriage |
-
1945
- 1945-01-16 GB GB127845A patent/GB584647A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102720430A (en) * | 2012-06-18 | 2012-10-10 | 哈尔滨工业大学 | Coaxial integrated gyration and excitation drive device of drilling tools |
| CN102735496A (en) * | 2012-06-18 | 2012-10-17 | 哈尔滨工业大学 | Mechanical self-adaptive drilling coring loading mechanism depending on accumulated energy of spring |
| CN102720430B (en) * | 2012-06-18 | 2014-06-11 | 哈尔滨工业大学 | Coaxial integrated gyration and excitation drive device of drilling tools |
| CN107939295A (en) * | 2017-12-31 | 2018-04-20 | 重庆聚亨机械有限公司 | Rock drilling machinery hydraulic pressure integration drill carriage |
| CN107939295B (en) * | 2017-12-31 | 2024-04-19 | 河北迈磊凯机电科技有限公司 | Hydraulic integrated drill carriage of rock drilling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1303295A (en) | ||
| GB584647A (en) | Improvements in or relating to rock drill mountings | |
| GB1269177A (en) | Improvements in or relating to a pneumatic jack | |
| GB1365026A (en) | Extendable mechanism | |
| FR2302272A1 (en) | Double column vehicle jack safety device - prevents supporting arms slewing when working | |
| US1933777A (en) | Lifting jack | |
| FR2220732A1 (en) | Stop valve with remote control - has telescopic ball jointed shaft between hand wheel and valve | |
| GB122216A (en) | Improvements in or relating to Lifting Jacks and the like for use on Motor Road and other Vehicles. | |
| US2183367A (en) | Vehicle lifting jack | |
| GB947970A (en) | A stabilizing or levelling jack | |
| GB890651A (en) | Improvements relating to caravan legs or jacks | |
| CN211362131U (en) | Automatic change three way valve screwing device | |
| GB1173855A (en) | Improvements in Kelly Stabilization Systems | |
| GB647869A (en) | Improvements in or relating to ratchet devices | |
| CN216246828U (en) | Multispectral thermometer | |
| GB1217026A (en) | Mobile swivel ladder | |
| CN221445322U (en) | Coal pile detection structure | |
| GB1228420A (en) | ||
| CN214405252U (en) | Constant pressure pump convenient to operation | |
| FR909527A (en) | Extendable prop that can also be used as a jack, cylinder, tensioner, press screw, etc. | |
| FR2249828A1 (en) | Independent load-lifting equipment - has telescopic mast with threaded rod working with nut in extending section | |
| SE8101122L (en) | HYDRAULIC PUMP WITH SLEEPED PLATE AND TWO DIRECTIONS | |
| GB1470038A (en) | Device for raising the sliding shutterinf for producing continuous concrete walls | |
| GB1131048A (en) | A mechanical jack | |
| US1904279A (en) | Lifting jack |