FR2121684B1 - - Google Patents
Info
- Publication number
- FR2121684B1 FR2121684B1 FR7200541A FR7200541A FR2121684B1 FR 2121684 B1 FR2121684 B1 FR 2121684B1 FR 7200541 A FR7200541 A FR 7200541A FR 7200541 A FR7200541 A FR 7200541A FR 2121684 B1 FR2121684 B1 FR 2121684B1
- Authority
- FR
- France
- 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
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C39/00—Devices for testing in situ the hardness or other properties of minerals, e.g. for giving information as to the selection of suitable mining tools
-
- 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
- E21C27/24—Mineral freed by means not involving slitting by milling means acting on the full working face, i.e. the rotary axis of the tool carrier being substantially parallel to the working face
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Auxiliary Devices For Machine Tools (AREA)
- Drilling And Exploitation, And Mining Machines And Methods (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB105471 | 1971-01-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2121684A1 FR2121684A1 (OSRAM) | 1972-08-25 |
| FR2121684B1 true FR2121684B1 (OSRAM) | 1975-10-24 |
Family
ID=9715369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7200541A Expired FR2121684B1 (OSRAM) | 1971-01-08 | 1972-01-07 |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE2164221C3 (OSRAM) |
| FR (1) | FR2121684B1 (OSRAM) |
| GB (1) | GB1320121A (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4465318A (en) * | 1981-10-13 | 1984-08-14 | Coal Industry (Patents) Limited | Rotary cutting head for mining machines with means for inducing airflow and sensing thereof |
| CN103671929A (zh) * | 2012-09-17 | 2014-03-26 | 林州重机集团股份有限公司 | 一种新型的巷道掘进机截割部的全密封装置 |
-
1971
- 1971-01-08 GB GB105471A patent/GB1320121A/en not_active Expired
- 1971-12-23 DE DE2164221A patent/DE2164221C3/de not_active Expired
-
1972
- 1972-01-07 FR FR7200541A patent/FR2121684B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE2164221A1 (de) | 1972-07-27 |
| GB1320121A (en) | 1973-06-13 |
| DE2164221C3 (de) | 1979-09-06 |
| DE2164221B2 (de) | 1979-01-11 |
| FR2121684A1 (OSRAM) | 1972-08-25 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |