JPS4934882B1 - - Google Patents
Info
- Publication number
- JPS4934882B1 JPS4934882B1 JP45011529A JP1152970A JPS4934882B1 JP S4934882 B1 JPS4934882 B1 JP S4934882B1 JP 45011529 A JP45011529 A JP 45011529A JP 1152970 A JP1152970 A JP 1152970A JP S4934882 B1 JPS4934882 B1 JP S4934882B1
- Authority
- JP
- Japan
- 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.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Geochemistry & Mineralogy (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Architecture (AREA)
- Geology (AREA)
- Ladders (AREA)
- Movable Scaffolding (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Revetment (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
- Lining And Supports For Tunnels (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB799869A GB1254594A (en) | 1969-02-13 | 1969-02-13 | Improvements in or relating to mine roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4934882B1 true JPS4934882B1 (ja) | 1974-09-18 |
Family
ID=9843830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP45011529A Pending JPS4934882B1 (ja) | 1969-02-13 | 1970-02-12 |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS4934882B1 (ja) |
| CA (1) | CA919439A (ja) |
| DE (1) | DE2004180C3 (ja) |
| FR (1) | FR2035210A5 (ja) |
| GB (1) | GB1254594A (ja) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5518394U (ja) * | 1978-07-26 | 1980-02-05 |
-
1969
- 1969-02-13 GB GB799869A patent/GB1254594A/en not_active Expired
-
1970
- 1970-01-28 CA CA073296A patent/CA919439A/en not_active Expired
- 1970-01-30 DE DE19702004180 patent/DE2004180C3/de not_active Expired
- 1970-02-09 FR FR7004437A patent/FR2035210A5/fr not_active Expired
- 1970-02-12 JP JP45011529A patent/JPS4934882B1/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5518394U (ja) * | 1978-07-26 | 1980-02-05 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2004180A1 (de) | 1970-09-03 |
| FR2035210A5 (ja) | 1970-12-18 |
| DE2004180C3 (de) | 1975-10-23 |
| CA919439A (en) | 1973-01-23 |
| GB1254594A (en) | 1971-11-24 |
| DE2004180B2 (de) | 1974-05-16 |