NL86462C - - Google Patents
Info
- Publication number
- NL86462C NL86462C NL86462DA NL86462C NL 86462 C NL86462 C NL 86462C NL 86462D A NL86462D A NL 86462DA NL 86462 C NL86462 C NL 86462C
- Authority
- NL
- Netherlands
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
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)
- Moulds, Cores, Or Mandrels (AREA)
- Working Measures On Existing Buildindgs (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE1951R0007973 DE919344C (en) | 1951-12-29 | 1951-12-29 | Articulated connection with two hinge points of caps for longwall construction, especially for the punch-free mining front |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL86462C true NL86462C (en) |
Family
ID=7397773
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7404111,A NL174889B (en) | 1951-12-29 | ELECTRIC HIGH VOLTAGE SWITCH WITH CLOSED GAS CIRCUIT. | |
| NL86462D NL86462C (en) | 1951-12-29 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NLAANVRAGE7404111,A NL174889B (en) | 1951-12-29 | ELECTRIC HIGH VOLTAGE SWITCH WITH CLOSED GAS CIRCUIT. |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE516589A (en) |
| DE (1) | DE919344C (en) |
| FR (1) | FR1069747A (en) |
| GB (1) | GB729171A (en) |
| NL (2) | NL86462C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1186819B (en) * | 1955-02-04 | 1965-02-11 | Aloys Vanwersch | Articulated connection of caps for longwall mining in underground operations |
| DE1250935B (en) * | 1960-12-20 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE819233C (en) * | 1948-10-02 | 1951-10-31 | Gelsenkirchener Bergwerks Akti | Articulated connection, especially for connecting two steel caps in mining operations |
-
0
- BE BE516589D patent/BE516589A/xx unknown
- NL NLAANVRAGE7404111,A patent/NL174889B/en unknown
- NL NL86462D patent/NL86462C/xx active
-
1951
- 1951-12-29 DE DE1951R0007973 patent/DE919344C/en not_active Expired
-
1952
- 1952-12-23 GB GB3266652A patent/GB729171A/en not_active Expired
- 1952-12-26 FR FR1069747D patent/FR1069747A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL174889B (en) | |
| FR1069747A (en) | 1954-07-12 |
| GB729171A (en) | 1955-05-04 |
| BE516589A (en) | |
| DE919344C (en) | 1954-10-21 |