JPS5066403A - - Google Patents
Info
- Publication number
- JPS5066403A JPS5066403A JP49115723A JP11572374A JPS5066403A JP S5066403 A JPS5066403 A JP S5066403A JP 49115723 A JP49115723 A JP 49115723A JP 11572374 A JP11572374 A JP 11572374A JP S5066403 A JPS5066403 A JP S5066403A
- 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
- E21D23/0472—Supports specially adapted for people walking or transporting material
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ladders (AREA)
- Handcart (AREA)
- Lining And Supports For Tunnels (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4761873A GB1449017A (en) | 1973-10-11 | 1973-10-11 | Mine roof supports |
| GB350774 | 1974-01-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5066403A true JPS5066403A (ja) | 1975-06-04 |
Family
ID=26238367
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP49115723A Pending JPS5066403A (ja) | 1973-10-11 | 1974-10-09 |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JPS5066403A (ja) |
| DE (1) | DE2444500B2 (ja) |
| GB (1) | GB1449017A (ja) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102102525B (zh) * | 2011-02-25 | 2012-08-08 | 三一重型综采成套设备有限公司 | 一种液压支架及其脚踏板装置 |
| CN113153401A (zh) * | 2021-05-28 | 2021-07-23 | 三一重型装备有限公司 | 液压支架脚踏装置和液压支架 |
-
1973
- 1973-10-11 GB GB4761873A patent/GB1449017A/en not_active Expired
-
1974
- 1974-09-18 DE DE19742444500 patent/DE2444500B2/de not_active Ceased
- 1974-10-09 JP JP49115723A patent/JPS5066403A/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2444500B2 (de) | 1976-08-26 |
| DE2444500A1 (de) | 1975-04-24 |
| GB1449017A (en) | 1976-09-08 |