PL65968B1 - - Google Patents
Download PDFInfo
- Publication number
- PL65968B1 PL65968B1 PL129662A PL12966268A PL65968B1 PL 65968 B1 PL65968 B1 PL 65968B1 PL 129662 A PL129662 A PL 129662A PL 12966268 A PL12966268 A PL 12966268A PL 65968 B1 PL65968 B1 PL 65968B1
- Authority
- PL
- Poland
- Prior art keywords
- supports
- sleeves
- connector
- hydraulic
- feet
- Prior art date
Links
- 229910045601 alloy Inorganic materials 0.000 claims 1
- 239000000956 alloy Substances 0.000 claims 1
- 210000000689 upper leg Anatomy 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 230000003245 working effect Effects 0.000 description 2
- 241000283070 Equus zebra Species 0.000 description 1
- 101100521345 Mus musculus Prop1 gene Proteins 0.000 description 1
- 108700017836 Prophet of Pit-1 Proteins 0.000 description 1
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009193 crawling Effects 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL65968B1 true PL65968B1 (cs) | 1972-04-29 |
Family
ID=
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201747387U (zh) | 巷道支护支架 | |
| US4492410A (en) | Apparatus for controlling the position of a mineral mining machine | |
| US3439508A (en) | Mine roof support means | |
| GB2045843A (en) | Collapsible dams | |
| US3058600A (en) | Handling vehicle | |
| PL65968B1 (cs) | ||
| US3042233A (en) | Multiple joint backhoe | |
| US4311417A (en) | Mine roof support | |
| PL175227B1 (pl) | Obudowa górnicza | |
| CN211397568U (zh) | 扒渣机护棚 | |
| PL81261B1 (cs) | ||
| PL92966B1 (cs) | ||
| US2705871A (en) | Anchorage for hydraulic gates | |
| US3116845A (en) | Material handling apparatus | |
| CN106592678B (zh) | 履带式挖掘机 | |
| US2437754A (en) | Jetty | |
| SU1364735A1 (ru) | Передвижной верхн к | |
| PL66513B1 (cs) | ||
| PL93301B1 (cs) | ||
| SU1073475A2 (ru) | Механизированна крепь | |
| PL76998B1 (cs) | ||
| US4117687A (en) | Mine roof supports | |
| SU918200A1 (ru) | Концева станци скребкового конвейера | |
| PL156429B1 (pl) | Górnicza obudowa podpor o wo-ostonowa | |
| RU2065971C1 (ru) | Секция механизированной крепи |