GB1160328A - A System for Supplying Fluid to Advanceable Mining Apparatus - Google Patents
A System for Supplying Fluid to Advanceable Mining ApparatusInfo
- Publication number
- GB1160328A GB1160328A GB27248/67A GB2724867A GB1160328A GB 1160328 A GB1160328 A GB 1160328A GB 27248/67 A GB27248/67 A GB 27248/67A GB 2724867 A GB2724867 A GB 2724867A GB 1160328 A GB1160328 A GB 1160328A
- Authority
- GB
- United Kingdom
- Prior art keywords
- fluid
- jack
- cylinder
- piston
- valve
- 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 title abstract 9
- 238000005065 mining Methods 0.000 title abstract 2
- 229910052500 inorganic mineral Inorganic materials 0.000 abstract 1
- 239000011707 mineral Substances 0.000 abstract 1
Classifications
-
- 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)
- Fluid-Pressure Circuits (AREA)
- Earth Drilling (AREA)
- Machines For Laying And Maintaining Railways (AREA)
Abstract
1,160,328. Control systems for mining apparatus. GEWERKSCHAFT EISENHUTTE WESTFALIA. 13 June, 1967 [18 June, 1966], No. 27248/67. Heading E1P. A plurality of fluid pressure operated jacks 1 is used to urge the guide 20 of a mineral cutting machine (not shown) against a working face, and each jack 1 is extended in steps of predetermined magnitude by causing fluid supplied thereto or the fluid exhausted therefrom to be, expelled from, or received in, a cylinder 2 containing a floating .piston 5 the stroke of which is adjustable by a screwed spindle 8. As shown, fluid is supplied to the jack 1 from the cylinder 2 by operation of a valve 19, whereby fluid from a conduit 3 flows into one end of the cylinder 2 through a line 18, and fluid is expelled by the piston 5 through a line 17, a non-return valve 12 and a valve 16 to the jack 1. If the jack 1 is prevented from extending due to an obstruction, a relief valve 13 automatically operates. In the alternative arrangement, (Fig. 3, not shown), the fluid is expelled from the piston rod chamber of the jack and into the cylinder 2 by fluid supplied to the piston chamber of the jack.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1483957A DE1483957C3 (en) | 1966-06-18 | 1966-06-18 | Rear device for a face conveyor or a guide rail with an extraction machine guided on it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1160328A true GB1160328A (en) | 1969-08-06 |
Family
ID=7128277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27248/67A Expired GB1160328A (en) | 1966-06-18 | 1967-06-13 | A System for Supplying Fluid to Advanceable Mining Apparatus |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3421795A (en) |
| DE (1) | DE1483957C3 (en) |
| GB (1) | GB1160328A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2245299A (en) * | 1990-06-20 | 1992-01-02 | Hemscheidt Maschf Hermann | A control system for longwall face support frames |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3531162A (en) * | 1967-12-09 | 1970-09-29 | Gullick Ltd | Metered supply of pressure fluid for longwall advance system |
| DE2265518C3 (en) * | 1972-11-29 | 1982-04-01 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Device for backing the leadership of a mining machine or the like. for mining operations with metered loading of the return cylinders |
| DE2258423C3 (en) | 1972-11-29 | 1980-11-13 | Gewerkschaft Eisenhuette Westfalia, 4670 Luenen | Device for backing the leadership of a mining machine or the like. for mining and extraction operations, with metered loading of the return cylinder |
| US3898845A (en) * | 1973-01-31 | 1975-08-12 | Gewerk Eisenhuette Westfalia | Mineral mining installations |
| DE2830510C3 (en) * | 1978-07-12 | 1981-07-23 | Bergwerksverband Gmbh, 4300 Essen | Method and valve arrangement for setting the stamps of a walking support |
| US20130255802A1 (en) * | 2012-04-02 | 2013-10-03 | Cameron International Corporation | Valve and hydraulic controller |
| US20130256570A1 (en) * | 2012-04-02 | 2013-10-03 | Cameron International Corporation | Valve and hydraulic controller |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2692767A (en) * | 1950-12-23 | 1954-10-26 | Goodman Mfg Co | Indexing means for continuous mining machine heads |
| US2859022A (en) * | 1955-04-04 | 1958-11-04 | Dowty Mining Equipment Ltd | Hydraulic roof supports and conveyor feed jacks |
| US3120105A (en) * | 1959-09-25 | 1964-02-04 | Coal Industry Patents Ltd | Self-advancing mine roof supports |
| GB1023125A (en) * | 1963-07-22 | 1966-03-16 | Dowty Mining Equipment Ltd | Mining apparatus |
-
1966
- 1966-06-18 DE DE1483957A patent/DE1483957C3/en not_active Expired
-
1967
- 1967-05-31 US US642558A patent/US3421795A/en not_active Expired - Lifetime
- 1967-06-13 GB GB27248/67A patent/GB1160328A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2245299A (en) * | 1990-06-20 | 1992-01-02 | Hemscheidt Maschf Hermann | A control system for longwall face support frames |
| GB2245299B (en) * | 1990-06-20 | 1994-07-13 | Hemscheidt Maschf Hermann | A control system for longwall face support frames |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1483957C3 (en) | 1978-12-14 |
| DE1483957A1 (en) | 1969-04-17 |
| DE1483957B2 (en) | 1974-03-28 |
| US3421795A (en) | 1969-01-14 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| 429A | Application made for amendment of specification (sect. 29/1949) | ||
| 429H | Application (made) for amendment of specification now open to opposition (sect. 29/1949) | ||
| 429D | Case decided by the comptroller ** specification amended (sect. 29/1949) | ||
| PCNP | Patent ceased through non-payment of renewal fee |