GB876483A - Improvements in or relating to hydraulic pillar supports for mines - Google Patents
Improvements in or relating to hydraulic pillar supports for minesInfo
- Publication number
- GB876483A GB876483A GB305358A GB305358A GB876483A GB 876483 A GB876483 A GB 876483A GB 305358 A GB305358 A GB 305358A GB 305358 A GB305358 A GB 305358A GB 876483 A GB876483 A GB 876483A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prop
- tube
- valve
- head
- pipe
- 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
- 239000012530 fluid Substances 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/60—Devices for withdrawing props or chocks
- E21D15/603—Devices for withdrawing props or chocks by means of hydraulic devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/15—Means counteracting entry of dirt; Built-in cleaning devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/60—Devices for withdrawing props or chocks
- E21D15/606—Devices for withdrawing props or chocks the props being moved systematically
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
- E21F13/086—Armoured conveyors shifting devices
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Structural Engineering (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Filtration Of Liquid (AREA)
- Fluid-Pressure Circuits (AREA)
- Actuator (AREA)
Abstract
876,483. Mine roof supports. EGGEMANN, W., and CAMPENHAUSEN, VON E., [trading as SCHWARZ KOMM.-GES., HERMANN]. Jan. 30, 1958, No. 3053/58. Class 20(2) A hydraulic pit prop comprising a tube 5 telescoping within a tube 8 which has a pivoted head 39 has a convex base which pivots within a flanged wall 7 on the floor of a housing 4 which acts as a hydraulic fluid reservoir. The head 39 has a convex lower surface 40 pivoting in a concave housing 38 provided with retaining lugs 41. In operation a detachable electric motor 46 is applied to a pump 23 which draws oil from the reservoir 4 through a filter 26, pipe 27, valve 28 and pipe 12 into the tubes 5, 8 forcing them apart to extend the prop. To release the prop, valve 28 is operated to connect pipes 12 and 30, oil also being pumped via pipe 29 and bore 45 into the annular space 42 between the head of tube 5 and tube 8. A relief-valve 13 is provided. A flexible ring 22 held by a flanged metal ring 18 bears on a ring 19 having flexible seals 20 so as to maintain the tube 8 upright. A double acting jack 36 pivoted between the prop and a conveyer 37 is operated by the valve 28 to advance the conveyer when the prop is set. Specification 876,484 is referred to.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL235587D NL235587A (en) | 1958-01-30 | ||
GB305358A GB876483A (en) | 1958-01-30 | 1958-01-30 | Improvements in or relating to hydraulic pillar supports for mines |
DESCH25414A DE1164961B (en) | 1958-01-30 | 1959-01-28 | Support element |
FR785237A FR1221089A (en) | 1958-01-30 | 1959-01-29 | Support device, usable in particular in mines |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB305358A GB876483A (en) | 1958-01-30 | 1958-01-30 | Improvements in or relating to hydraulic pillar supports for mines |
Publications (1)
Publication Number | Publication Date |
---|---|
GB876483A true GB876483A (en) | 1961-09-06 |
Family
ID=9751089
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB305358A Expired GB876483A (en) | 1958-01-30 | 1958-01-30 | Improvements in or relating to hydraulic pillar supports for mines |
Country Status (4)
Country | Link |
---|---|
DE (1) | DE1164961B (en) |
FR (1) | FR1221089A (en) |
GB (1) | GB876483A (en) |
NL (1) | NL235587A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2357806A (en) * | 1999-12-02 | 2001-07-04 | Trevor John Honour | Load bearing props |
GB2368860A (en) * | 2000-09-15 | 2002-05-15 | Dbt Gmbh | Hydraulic prop and seal arrangement |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4046354A (en) * | 1975-08-26 | 1977-09-06 | Stith Jr Morris Randall | Apparatus for positioning and supporting a machine |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE899483C (en) * | 1953-11-05 | Eisenwerk Wanheim G.M.B.H., Duisburg-Wanheim | Iron pit stamp | |
DE640845C (en) * | 1935-05-27 | 1937-01-13 | Wilhelm Fehlemann | Resilient pit stamp |
DE901282C (en) * | 1943-08-01 | 1954-01-11 | Eisenwerk Wanheim G M B H | Iron pit stamp |
DE809903C (en) * | 1948-08-25 | 1951-08-02 | Mavor & Coulson Ltd | Hydraulic ram for mining operations |
DE846238C (en) * | 1949-10-28 | 1952-08-11 | Mannesmannroehren Werke Steink | Adjustable metal pit punch |
DE827939C (en) * | 1950-02-17 | 1952-01-14 | Peter Ewald Zapp | Hydraulic pit ram |
DE871883C (en) * | 1950-03-17 | 1953-03-26 | Der Niederlaendische Staat | Metal pit stamp with associated head |
DE926601C (en) * | 1950-04-26 | 1955-04-21 | Konrad Grebe | Hydraulic pit ram |
DE918561C (en) * | 1951-08-08 | 1954-09-30 | Arthur Hamel | Hydraulic pit ram |
DE924686C (en) * | 1951-11-30 | 1955-03-07 | Emil Weber | Hydraulic setting device for stamp |
DE922527C (en) * | 1952-05-20 | 1955-01-17 | Ringfeder Gmbh | Pit stamp |
DE934342C (en) * | 1954-06-27 | 1955-10-20 | Gutehoffnungshuette Sterkrade | Multi-part hydraulic pit ram |
DE967868C (en) * | 1955-03-31 | 1957-12-19 | Robel & Co G | Impact device |
-
0
- NL NL235587D patent/NL235587A/xx unknown
-
1958
- 1958-01-30 GB GB305358A patent/GB876483A/en not_active Expired
-
1959
- 1959-01-28 DE DESCH25414A patent/DE1164961B/en active Pending
- 1959-01-29 FR FR785237A patent/FR1221089A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2357806A (en) * | 1999-12-02 | 2001-07-04 | Trevor John Honour | Load bearing props |
GB2368860A (en) * | 2000-09-15 | 2002-05-15 | Dbt Gmbh | Hydraulic prop and seal arrangement |
US6615705B2 (en) | 2000-09-15 | 2003-09-09 | Dbt Gmbh | Hydraulic cylinder |
GB2368860B (en) * | 2000-09-15 | 2004-04-28 | Dbt Gmbh | A hydraulic cylinder for use as a mine prop |
Also Published As
Publication number | Publication date |
---|---|
NL235587A (en) | |
FR1221089A (en) | 1960-05-31 |
DE1164961B (en) | 1964-03-12 |
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