FR1181473A - étançon de mine - Google Patents
étançon de mineInfo
- Publication number
- FR1181473A FR1181473A FR1181473DA FR1181473A FR 1181473 A FR1181473 A FR 1181473A FR 1181473D A FR1181473D A FR 1181473DA FR 1181473 A FR1181473 A FR 1181473A
- Authority
- FR
- France
- Prior art keywords
- mine prop
- prop
- mine
- 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
- E21D15/28—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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1181473X | 1956-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1181473A true FR1181473A (fr) | 1959-06-16 |
Family
ID=7730303
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1181473D Expired FR1181473A (fr) | 1956-08-10 | 1957-08-09 | étançon de mine |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1181473A (fr) |
-
1957
- 1957-08-09 FR FR1181473D patent/FR1181473A/fr not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR1178174A (fr) | étançon hydraulique pour mine | |
FR1186287A (fr) | étançon hydraulique | |
FR1181300A (fr) | étançon hydraulique | |
FR1182336A (fr) | étançon de mine de logueur variable | |
FR1176775A (fr) | Soupape d'étai de mine | |
FR1202536A (fr) | étançon de mine | |
FR1147627A (fr) | Perfectionnements apportés aux étais | |
FR1175285A (fr) | étançon de mine | |
FR1248352A (fr) | étai hydraulique de mine | |
FR1164143A (fr) | étançon de mine | |
FR1187587A (fr) | étançon de mine | |
FR1181473A (fr) | étançon de mine | |
FR1170009A (fr) | étançon de mine | |
FR1178745A (fr) | étançon de mine | |
FR1180686A (fr) | étançon de mine | |
FR1198866A (fr) | Soutènement de mine | |
FR1146738A (fr) | étançon de mine | |
FR1212988A (fr) | Nouvel étançon de mine | |
FR1173560A (fr) | étançon de mines | |
FR1133974A (fr) | étançon de mine | |
FR1222567A (fr) | étai de mine | |
FR71197E (fr) | étançon de mine | |
FR1206464A (fr) | étançon de mine | |
FR1169098A (fr) | étançon de mine | |
FR1214273A (fr) | étançon de mine |