FR1101344A - two-piece mine prop with clamping plate and keying mechanism - Google Patents
two-piece mine prop with clamping plate and keying mechanismInfo
- Publication number
- FR1101344A FR1101344A FR1101344DA FR1101344A FR 1101344 A FR1101344 A FR 1101344A FR 1101344D A FR1101344D A FR 1101344DA FR 1101344 A FR1101344 A FR 1101344A
- Authority
- FR
- France
- Prior art keywords
- clamping plate
- keying mechanism
- mine prop
- piece
- piece 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
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 |
|---|---|---|---|
| DE1101344X | 1953-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1101344A true FR1101344A (en) | 1955-10-05 |
Family
ID=7722740
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1101344D Expired FR1101344A (en) | 1953-07-10 | 1954-05-25 | two-piece mine prop with clamping plate and keying mechanism |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1101344A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5590862A (en) * | 1993-11-25 | 1997-01-07 | Ono; Tatsuo | Device for adjusting the length of a support |
-
1954
- 1954-05-25 FR FR1101344D patent/FR1101344A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5590862A (en) * | 1993-11-25 | 1997-01-07 | Ono; Tatsuo | Device for adjusting the length of a support |
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