JPS4932163B1 - - Google Patents
Info
- Publication number
- JPS4932163B1 JPS4932163B1 JP44074722A JP7472269A JPS4932163B1 JP S4932163 B1 JPS4932163 B1 JP S4932163B1 JP 44074722 A JP44074722 A JP 44074722A JP 7472269 A JP7472269 A JP 7472269A JP S4932163 B1 JPS4932163 B1 JP S4932163B1
- 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
- E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
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)
- Roof Covering Using Slabs Or Stiff Sheets (AREA)
- Lining And Supports For Tunnels (AREA)
- Tents Or Canopies (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB46434/68A GB1236590A (en) | 1968-10-01 | 1968-10-01 | Improvements in or relating to mine roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS4932163B1 true JPS4932163B1 (en) | 1974-08-28 |
Family
ID=10441258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP44074722A Pending JPS4932163B1 (en) | 1968-10-01 | 1969-09-22 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3646769A (en) |
| JP (1) | JPS4932163B1 (en) |
| GB (1) | GB1236590A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT504265B1 (en) * | 2006-07-28 | 2011-02-15 | Voest Alpine Bergtechnik | SUPPORT DEVICE FOR AN OPERATOR OR MACHINE |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2910281A (en) * | 1956-10-19 | 1959-10-27 | Rheinstahl Wanheim Gmbh | Prop and conveyer arrangement for mines |
| GB950066A (en) * | 1960-02-18 | 1964-02-19 | Gullick Ltd | Improvements in or relating to advancing roof supporting means for mines |
| NL279454A (en) * | 1961-06-09 | |||
| GB969940A (en) * | 1961-10-19 | 1964-09-16 | Salzgitter Maschinen Ag | Articulated cap for pit props |
| DE1290506B (en) * | 1962-11-10 | 1969-03-13 | Groetschel Karl Maria | Traveling extension unit |
| GB1045353A (en) * | 1964-02-12 | 1966-10-12 | Gullick Ltd | Improvements in or relating to mine roof supports |
| GB1091602A (en) * | 1964-03-10 | 1967-11-22 | Dowty Mining Equipment Ltd | Roof support suitable for use in mines |
| US3333426A (en) * | 1964-04-11 | 1967-08-01 | Gullick Ltd | Self-advancing hydraulically extensible mine roof supports |
| US3490243A (en) * | 1966-11-16 | 1970-01-20 | Karl Maria Groetschel | Roof supports for mine workings |
-
1968
- 1968-10-01 GB GB46434/68A patent/GB1236590A/en not_active Expired
-
1969
- 1969-09-16 US US858379A patent/US3646769A/en not_active Expired - Lifetime
- 1969-09-22 JP JP44074722A patent/JPS4932163B1/ja active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE1947378A1 (en) | 1970-04-23 |
| DE1947378B2 (en) | 1977-05-26 |
| GB1236590A (en) | 1971-06-23 |
| US3646769A (en) | 1972-03-07 |