FR1035388A - Improvements made to mine props - Google Patents
Improvements made to mine propsInfo
- Publication number
- FR1035388A FR1035388A FR1035388DA FR1035388A FR 1035388 A FR1035388 A FR 1035388A FR 1035388D A FR1035388D A FR 1035388DA FR 1035388 A FR1035388 A FR 1035388A
- Authority
- FR
- France
- Prior art keywords
- improvements made
- mine props
- props
- 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
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/08—Shores or struts; Chocks telescopic with parts held relatively to each other by friction or gripping
-
- 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
- E21D15/40—Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil 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 |
|---|---|---|---|
| DE1035388X | 1950-04-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1035388A true FR1035388A (en) | 1953-08-24 |
Family
ID=7715887
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1035388D Expired FR1035388A (en) | 1950-04-18 | 1951-04-13 | Improvements made to mine props |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1035388A (en) |
-
1951
- 1951-04-13 FR FR1035388D patent/FR1035388A/en not_active Expired
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