GB959291A - Pit-prop - Google Patents
Pit-propInfo
- Publication number
- GB959291A GB959291A GB4084660A GB4084660A GB959291A GB 959291 A GB959291 A GB 959291A GB 4084660 A GB4084660 A GB 4084660A GB 4084660 A GB4084660 A GB 4084660A GB 959291 A GB959291 A GB 959291A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prop
- gerlach
- nov
- wedge
- swivel bearing
- 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
- 229910000906 Bronze Inorganic materials 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000011324 bead Substances 0.000 abstract 1
- 239000010974 bronze Substances 0.000 abstract 1
- 230000004048 modification Effects 0.000 abstract 1
- 238000012986 modification Methods 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/14—Telescopic props
- E21D15/28—Telescopic props with parts held relatively to each other by friction or gripping
- E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Steering Controls (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
- Braking Arrangements (AREA)
- Press Drives And Press Lines (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEG28451A DE1094210B (de) | 1959-11-26 | 1959-11-26 | Mehrteiliger Grubenstempel mit Reibungsschloss |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB959291A true GB959291A (en) | 1964-05-27 |
Family
ID=7123483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4084660A Expired GB959291A (en) | 1959-11-26 | 1960-11-28 | Pit-prop |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE597517A (de) |
| DE (1) | DE1094210B (de) |
| GB (1) | GB959291A (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1183461B (de) * | 1961-05-12 | 1964-12-17 | Rheinstahl Gmbh Wanheim | Gruben-Reibungsstempel |
-
1959
- 1959-11-26 DE DEG28451A patent/DE1094210B/de active Pending
-
1960
- 1960-11-25 BE BE597517A patent/BE597517A/fr unknown
- 1960-11-28 GB GB4084660A patent/GB959291A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE1094210B (de) | 1960-12-08 |
| BE597517A (fr) | 1961-03-15 |
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