GB1251657A - - Google Patents
Info
- Publication number
- GB1251657A GB1251657A GB1251657DA GB1251657A GB 1251657 A GB1251657 A GB 1251657A GB 1251657D A GB1251657D A GB 1251657DA GB 1251657 A GB1251657 A GB 1251657A
- Authority
- GB
- United Kingdom
- Prior art keywords
- machine
- props
- webs
- cut
- frame
- 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 abstract 2
- 238000006073 displacement reaction Methods 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/02—Machines which completely free the mineral from the seam solely by slitting
- E21C27/04—Machines which completely free the mineral from the seam solely by slitting by a single chain guided on a frame with or without auxiliary slitting means
- E21C27/06—Machines which completely free the mineral from the seam solely by slitting by a single chain guided on a frame with or without auxiliary slitting means with a slewing frame
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)
- Attitude Control For Articles On Conveyors (AREA)
Abstract
1,251,657. Mining systems. C. V. PEAKE. 25 Sept., 1969 [25 Sept., 1968], No. 45428/68. Heading E1F. A system of sequentially mining webs W, W<SP>1</SP>, W<SP>2</SP>.. of material extending between roadways 2, 3 comprises using a machine 1 to cut the webs in the longitudinal direction thereof, the adjacent webs being cut in opposite directions and the machine being moved transversely between the webs at the ends thereof and cutting into the web to which it is moved. The machine frame is connected by hydraulic jacks to a plurality of roof support props 5 whereby alternate relative displacement of the frame and the props can be caused in mutually transverse directions. The frame may also carry roof support props. Further roof support props 6 are transferred through the machine from a position in front of a web being cut to a position in front of the next web, the props 6 being flexibly interlinked and the machine having guide rails and arms to facilitate the movement of the props. The machine frame is rectangular and has a guide rail for passage therealong of the cutting means, Figs. 2 and 3 (not shown), which can be selectively disposed at three sides of the machine. Alternatively, a plurality of cutting means may be provided. A scraper conveyor on the machine delivers cut material to a further conveyor. The machine may be automatically operated.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4542868 | 1968-09-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1251657A true GB1251657A (en) | 1971-10-27 |
Family
ID=10437174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1251657D Expired GB1251657A (en) | 1968-09-25 | 1968-09-25 |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1251657A (en) |
-
1968
- 1968-09-25 GB GB1251657D patent/GB1251657A/en not_active Expired
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |