FR1214273A - étançon de mine - Google Patents
étançon de mineInfo
- Publication number
- FR1214273A FR1214273A FR1214273DA FR1214273A FR 1214273 A FR1214273 A FR 1214273A FR 1214273D A FR1214273D A FR 1214273DA FR 1214273 A FR1214273 A FR 1214273A
- 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
- E21D15/285—Telescopic props with parts held relatively to each other by friction or gripping by means of wedges or wedge combinations
-
- 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
- E21D15/15—Means counteracting entry of dirt; Built-in cleaning devices
-
- 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
- E21D15/58—Devices for setting props or chocks
- E21D15/581—Devices for setting props or chocks in which the props are pre- loaded
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 |
|---|---|---|---|
| DE1214273X | 1957-10-24 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1214273A true FR1214273A (fr) | 1960-04-07 |
Family
ID=7733442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1214273D Expired FR1214273A (fr) | 1957-10-24 | 1958-10-24 | étançon de mine |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1214273A (fr) |
-
1958
- 1958-10-24 FR FR1214273D patent/FR1214273A/fr not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR1182336A (fr) | étançon de mine de logueur variable | |
| FR1202536A (fr) | étançon de mine | |
| FR1248352A (fr) | étai hydraulique de mine | |
| FR1198866A (fr) | Soutènement de mine | |
| FR1169098A (fr) | étançon de mine | |
| FR1206464A (fr) | étançon de mine | |
| FR1222567A (fr) | étai de mine | |
| FR71197E (fr) | étançon de mine | |
| FR1214273A (fr) | étançon de mine | |
| FR1175285A (fr) | étançon de mine | |
| FR1181864A (fr) | étançons | |
| FR1183327A (fr) | étai | |
| FR1203283A (fr) | Soutènement de mine | |
| FR1212988A (fr) | Nouvel étançon de mine | |
| BE603540A (fr) | Etançon de mine | |
| FR1146738A (fr) | étançon de mine | |
| FR1133974A (fr) | étançon de mine | |
| FR1164143A (fr) | étançon de mine | |
| FR1187587A (fr) | étançon de mine | |
| FR1181473A (fr) | étançon de mine | |
| FR1180686A (fr) | étançon de mine | |
| FR1178745A (fr) | étançon de mine | |
| FR1170009A (fr) | étançon de mine | |
| FR1193513A (fr) | étançons | |
| FR1280693A (fr) | étançon de mine hydropneumatique |