GB674715A - Improvements in a method of and apparatus for mining coal or other minerals from thesolid - Google Patents
Improvements in a method of and apparatus for mining coal or other minerals from thesolidInfo
- Publication number
- GB674715A GB674715A GB24436/50A GB2443650A GB674715A GB 674715 A GB674715 A GB 674715A GB 24436/50 A GB24436/50 A GB 24436/50A GB 2443650 A GB2443650 A GB 2443650A GB 674715 A GB674715 A GB 674715A
- Authority
- GB
- United Kingdom
- Prior art keywords
- vein
- elevation
- disintegrating apparatus
- thesolid
- minerals
- 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
- 229910052500 inorganic mineral Inorganic materials 0.000 title abstract 2
- 239000011707 mineral Substances 0.000 title abstract 2
- 238000005065 mining Methods 0.000 title abstract 2
- 239000003245 coal Substances 0.000 title 1
- 238000000034 method Methods 0.000 title 1
- 210000003462 vein Anatomy 0.000 abstract 3
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C27/00—Machines which completely free the mineral from the seam
- E21C27/20—Mineral freed by means not involving slitting
- E21C27/26—Mineral freed by means not involving slitting by closely adjacent cutter chains acting on the full 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)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Abstract
674,715. Mining-machines. JOY MANUFACTURING CO. May 20, 1948. [May 28, 1947] No. 24436/50. Divided out of 674,626. Class 68 (i). In a mining machine of the type described in Specification 674,626 the disintegrating apparatus is moved with such force and speed in upright planes to change the elevation of the attack on the vein of said disintegrating apparatus and the bits are so moved in orbital paths that, during at least the major portion of the movement changing the elevation of the attack on the vein, the mineral is detached from the face by a tearing action, the rate of change in elevation of the disintegrating apparatus during such movement through said vein exceeding the rate of true cutting of the bits.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US674715XA | 1947-05-28 | 1947-05-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB674715A true GB674715A (en) | 1952-06-25 |
Family
ID=22076212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB24436/50A Expired GB674715A (en) | 1947-05-28 | 1948-05-20 | Improvements in a method of and apparatus for mining coal or other minerals from thesolid |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB674715A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0126725A1 (en) * | 1983-03-23 | 1984-11-28 | VOEST-ALPINE Aktiengesellschaft | Partial-cut cutting machine |
-
1948
- 1948-05-20 GB GB24436/50A patent/GB674715A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0126725A1 (en) * | 1983-03-23 | 1984-11-28 | VOEST-ALPINE Aktiengesellschaft | Partial-cut cutting machine |
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