NL105545C - - Google Patents
Info
- Publication number
- NL105545C NL105545C NL105545DA NL105545C NL 105545 C NL105545 C NL 105545C NL 105545D A NL105545D A NL 105545DA NL 105545 C NL105545 C NL 105545C
- 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)
- Pivots And Pivotal Connections (AREA)
- Mutual Connection Of Rods And Tubes (AREA)
- Clamps And Clips (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG14723A DE1053456B (en) | 1954-06-25 | 1954-06-25 | Pivot joint connection for pit support caps |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL105545C true NL105545C (en) |
Family
ID=7120293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL105545D NL105545C (en) | 1954-06-25 |
Country Status (5)
| Country | Link |
|---|---|
| BE (1) | BE539259A (en) |
| DE (1) | DE1053456B (en) |
| FR (1) | FR1126664A (en) |
| GB (1) | GB770741A (en) |
| NL (1) | NL105545C (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3043108A (en) * | 1958-07-16 | 1962-07-10 | Vanwersch Aloys | Mine roof bar arrangement |
| DE1186014B (en) * | 1960-07-04 | 1965-01-28 | Heinrich Pierburg Fa | Forearm joint cap, especially for longwall construction |
-
0
- NL NL105545D patent/NL105545C/xx active
- BE BE539259D patent/BE539259A/xx unknown
-
1954
- 1954-06-25 DE DEG14723A patent/DE1053456B/en active Pending
-
1955
- 1955-06-10 GB GB1672155A patent/GB770741A/en not_active Expired
- 1955-06-23 FR FR1126664D patent/FR1126664A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR1126664A (en) | 1956-11-28 |
| GB770741A (en) | 1957-03-20 |
| BE539259A (en) | |
| DE1053456B (en) | 1959-03-26 |