GB790482A - Thrust mechanism for the guide rails of mining apparatus - Google Patents
Thrust mechanism for the guide rails of mining apparatusInfo
- Publication number
- GB790482A GB790482A GB2972254A GB2972254A GB790482A GB 790482 A GB790482 A GB 790482A GB 2972254 A GB2972254 A GB 2972254A GB 2972254 A GB2972254 A GB 2972254A GB 790482 A GB790482 A GB 790482A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pipe
- mining apparatus
- guide rails
- thrust mechanism
- return
- 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
- 238000005065 mining Methods 0.000 title abstract 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- 239000003245 coal Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/08—Guiding the machine
- E21C35/12—Guiding the machine along a conveyor for the cut material
- E21C35/14—Equipment for pressing the conveyor towards the working face
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)
- Drives For Endless Conveyors (AREA)
Abstract
790,482. Pushing jacks. DEMAG AKT.- GES. Oct. 15, 1954 [Dec. 9, 1953], No. 29722/54. Class 78 (3). Thrusting mechanism for the guide rails 2 of mining apparatus 1, e.g. conveyers or coal ploughs which are moved along the face 3 of a mine working, comprises a double-acting hydraulic jack 4, 5 in which the cylinder chambers 4a, 4b are each connected to both a pressure pipe 10 and a return pipe 11, and crosswise operating valve gear (not shown) which ensures that either valve 10a or 11b or valves 10b and 11a are open so enabling the piston 5 to force water back into the pressure pipe 10 when the mining apparatus passes the thrust mechanism. A relief valve (not shown) is provided adjacent the pump to allow water to return from pipe 10 to pipe 11. The jack is mounted on an extensible distance piece 7, 8 provided with a reaction strut 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2972254A GB790482A (en) | 1954-10-15 | 1954-10-15 | Thrust mechanism for the guide rails of mining apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2972254A GB790482A (en) | 1954-10-15 | 1954-10-15 | Thrust mechanism for the guide rails of mining apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB790482A true GB790482A (en) | 1958-02-12 |
Family
ID=6701271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2972254A Expired GB790482A (en) | 1954-10-15 | 1954-10-15 | Thrust mechanism for the guide rails of mining apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB790482A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3482878A (en) * | 1967-01-13 | 1969-12-09 | Gewerk Eisenhuette Westfalia | Traveling support assembly for a longwall mining plow and conveyor |
-
1954
- 1954-10-15 GB GB2972254A patent/GB790482A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3482878A (en) * | 1967-01-13 | 1969-12-09 | Gewerk Eisenhuette Westfalia | Traveling support assembly for a longwall mining plow and conveyor |
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