DE304180C - - Google Patents
Info
- Publication number
- DE304180C DE304180C DENDAT304180D DE304180DA DE304180C DE 304180 C DE304180 C DE 304180C DE NDAT304180 D DENDAT304180 D DE NDAT304180D DE 304180D A DE304180D A DE 304180DA DE 304180 C DE304180 C DE 304180C
- Authority
- DE
- Germany
- Prior art keywords
- clamp band
- inlays
- wooden
- jaws
- leaf springs
- 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.)
- Active
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 239000011435 rock Substances 0.000 description 2
- 230000002787 reinforcement Effects 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
- E21D15/285—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)
- Clamps And Clips (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE304180C true DE304180C (https=) |
Family
ID=557820
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT304180D Active DE304180C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE304180C (https=) |
-
0
- DE DENDAT304180D patent/DE304180C/de active Active
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