FR944055A - Socle compressible élastique et démontable pour étançons de mines - Google Patents
Socle compressible élastique et démontable pour étançons de minesInfo
- Publication number
- FR944055A FR944055A FR944055DA FR944055A FR 944055 A FR944055 A FR 944055A FR 944055D A FR944055D A FR 944055DA FR 944055 A FR944055 A FR 944055A
- Authority
- FR
- France
- Prior art keywords
- elastic
- compressible base
- mine props
- removable compressible
- removable
- 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
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
- E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
- E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure
-
- 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
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR944055T | 1946-05-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR944055A true FR944055A (fr) | 1949-03-25 |
Family
ID=9471572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR944055D Expired FR944055A (fr) | 1946-05-14 | 1946-05-14 | Socle compressible élastique et démontable pour étançons de mines |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR944055A (fr) |
-
1946
- 1946-05-14 FR FR944055D patent/FR944055A/fr not_active Expired
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