DE1068200B - - Google Patents
Info
- Publication number
- DE1068200B DE1068200B DENDAT1068200D DE1068200DA DE1068200B DE 1068200 B DE1068200 B DE 1068200B DE NDAT1068200 D DENDAT1068200 D DE NDAT1068200D DE 1068200D A DE1068200D A DE 1068200DA DE 1068200 B DE1068200 B DE 1068200B
- Authority
- DE
- Germany
- Prior art keywords
- friction
- wedge
- arms
- tendons
- torque
- 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.)
- Pending
Links
- 210000002435 tendon Anatomy 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000004512 die casting Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 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
- E21D15/43—Details of wedges
-
- 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
- E21D15/32—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring
- E21D15/325—Telescopic props with parts held relatively to each other by friction or gripping by a deformable collar or clamping means applied symmetrically inside a locking ring by a clamping ring
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)
- Suspension Of Electric Lines Or Cables (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1068200B true DE1068200B (fr) | 1959-11-05 |
Family
ID=593576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1068200D Pending DE1068200B (fr) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1068200B (fr) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR898890A (fr) * | 1942-11-09 | 1945-05-09 | Poteau en fer pour mines | |
| US2474464A (en) * | 1947-04-24 | 1949-06-28 | Cable Richard George | Pit prop and the like |
-
0
- DE DENDAT1068200D patent/DE1068200B/de active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR898890A (fr) * | 1942-11-09 | 1945-05-09 | Poteau en fer pour mines | |
| US2474464A (en) * | 1947-04-24 | 1949-06-28 | Cable Richard George | Pit prop and the like |
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