BE531326A - - Google Patents
Info
- Publication number
- BE531326A BE531326A BE531326DA BE531326A BE 531326 A BE531326 A BE 531326A BE 531326D A BE531326D A BE 531326DA BE 531326 A BE531326 A BE 531326A
- Authority
- BE
- Belgium
Links
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
- E21C25/58—Machines slitting by drilling hole on hole
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)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2326353A GB741904A (en) | 1953-08-24 | 1953-08-24 | An improved cutter head for a mineral-mining or earth-boring machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE531326A true BE531326A (en:Method) |
Family
ID=10192825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE531326D BE531326A (en:Method) | 1953-08-24 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE531326A (en:Method) |
| DE (1) | DE963323C (en:Method) |
| FR (1) | FR1114347A (en:Method) |
| GB (1) | GB741904A (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2954219A (en) * | 1958-02-28 | 1960-09-27 | Joy Mfg Co | Screw wedge burster |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2250670A (en) * | 1939-01-20 | 1941-07-29 | Joy Mfg Co | Drilling apparatus |
| US2399074A (en) * | 1945-06-13 | 1946-04-23 | Charles E Tibbals | Breaking down mechanism |
-
0
- BE BE531326D patent/BE531326A/xx unknown
-
1953
- 1953-08-24 GB GB2326353A patent/GB741904A/en not_active Expired
-
1954
- 1954-08-17 FR FR1114347D patent/FR1114347A/fr not_active Expired
- 1954-08-22 DE DEJ9049A patent/DE963323C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB741904A (en) | 1955-12-14 |
| FR1114347A (fr) | 1956-04-11 |
| DE963323C (de) | 1957-05-09 |