GB1095641A - Hydraulically operated mine prop - Google Patents
Hydraulically operated mine propInfo
- Publication number
- GB1095641A GB1095641A GB5180364A GB5180364A GB1095641A GB 1095641 A GB1095641 A GB 1095641A GB 5180364 A GB5180364 A GB 5180364A GB 5180364 A GB5180364 A GB 5180364A GB 1095641 A GB1095641 A GB 1095641A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prop
- chamber
- oil
- corrosion
- hydraulically operated
- 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
- 238000005260 corrosion Methods 0.000 abstract 2
- 239000012530 fluid Substances 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000004952 Polyamide Substances 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 230000007797 corrosion Effects 0.000 abstract 1
- 239000006260 foam Substances 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 239000004519 grease Substances 0.000 abstract 1
- 230000002401 inhibitory effect Effects 0.000 abstract 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 abstract 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 239000004033 plastic Substances 0.000 abstract 1
- 229920003023 plastic Polymers 0.000 abstract 1
- 229920002647 polyamide Polymers 0.000 abstract 1
- 229920000915 polyvinyl chloride Polymers 0.000 abstract 1
- 239000004800 polyvinyl chloride Substances 0.000 abstract 1
- 239000002569 water oil cream 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
- E21D15/14—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
- E21D15/50—Component parts or details of props
- E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
- E21D15/515—Particular fluids not covered by any chemical subdivision
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16J—PISTONS; CYLINDERS; SEALINGS
- F16J10/00—Engine or like cylinders; Features of hollow, e.g. cylindrical, bodies in general
- F16J10/02—Cylinders designed to receive moving pistons or plungers
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Pressure Vessels And Lids Thereof (AREA)
- Lubricants (AREA)
- Earth Drilling (AREA)
Abstract
1,095,641. Hydraulic pit props. M. VON LINSINGEN [trading as BOCHUMER EISENHUTTE HEINTZMANN & CO]. Dec. 21, 1964 [Jan. 31, 1964], No. 51803/64. Heading E1E. In an hydraulic pit prop the annular chamber 17 disposed between the piston and cylinder units 2, 1 respectively contains a corrosion and rust inhibiting media such as a water-oil-emulsion which also serves as a lubricant and may be the same as the fluid used in the working chamber of the prop. The chamber 17 is sealed by a packing 18 which may be somewhat modified as shown in Figs. 2 and 3. Fluid escaping from a safety valve 15 or a bleeder valve 16 may be used to 'top up' the chamber 17 'by trickling down the prop at 19a and being entrained into the chamber during collapse of the prop.-The seal 18 is made of polyamide, polyvinyl chloride or foam plastic and may be impregnated with an anti-corrosion agent such as oil, grease, graphite or molybdenum disulphide.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB75240A DE1230744B (en) | 1964-01-31 | 1964-01-31 | Hydraulic pit ram |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1095641A true GB1095641A (en) | 1967-12-20 |
Family
ID=6978585
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5180364A Expired GB1095641A (en) | 1964-01-31 | 1964-12-21 | Hydraulically operated mine prop |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE658536A (en) |
| DE (1) | DE1230744B (en) |
| GB (1) | GB1095641A (en) |
| NL (1) | NL6413084A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2812915A1 (en) * | 2000-08-11 | 2002-02-15 | Luk Lamellen & Kupplungsbau | Hydraulic system useful for the control of motor vehicles, comprises a lubricant having a specific density greater than that of the hydraulic fluid or that is insoluble in the hydraulic fluid. |
| CN104653202A (en) * | 2013-11-21 | 2015-05-27 | 中国矿业大学 | Double-seal piston-free pure water monomer hydraulic supporting column |
| CN111219382A (en) * | 2019-10-29 | 2020-06-02 | 北京天地玛珂电液控制系统有限公司 | High-flow safety valve for aqueous medium mine |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101660423B (en) * | 2009-09-17 | 2011-12-21 | 杨绍柏 | Floating type guiding sleeve of single hydraulic prop |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE629233A (en) * | 1962-03-07 |
-
1964
- 1964-01-31 DE DEB75240A patent/DE1230744B/en active Pending
- 1964-11-10 NL NL6413084A patent/NL6413084A/xx unknown
- 1964-12-21 GB GB5180364A patent/GB1095641A/en not_active Expired
-
1965
- 1965-01-20 BE BE658536D patent/BE658536A/xx unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2812915A1 (en) * | 2000-08-11 | 2002-02-15 | Luk Lamellen & Kupplungsbau | Hydraulic system useful for the control of motor vehicles, comprises a lubricant having a specific density greater than that of the hydraulic fluid or that is insoluble in the hydraulic fluid. |
| CN104653202A (en) * | 2013-11-21 | 2015-05-27 | 中国矿业大学 | Double-seal piston-free pure water monomer hydraulic supporting column |
| CN111219382A (en) * | 2019-10-29 | 2020-06-02 | 北京天地玛珂电液控制系统有限公司 | High-flow safety valve for aqueous medium mine |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1230744B (en) | 1966-12-22 |
| BE658536A (en) | 1965-07-20 |
| NL6413084A (en) | 1965-08-02 |
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