PL80887B1 - - Google Patents
Download PDFInfo
- Publication number
- PL80887B1 PL80887B1 PL1969132183A PL13218369A PL80887B1 PL 80887 B1 PL80887 B1 PL 80887B1 PL 1969132183 A PL1969132183 A PL 1969132183A PL 13218369 A PL13218369 A PL 13218369A PL 80887 B1 PL80887 B1 PL 80887B1
- Authority
- PL
- Poland
- Prior art keywords
- frames
- guide
- articulated
- casing
- frame
- Prior art date
Links
- 238000006073 displacement reaction Methods 0.000 claims description 15
- 238000009412 basement excavation Methods 0.000 claims description 5
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
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
-
- 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
- E21D23/0082—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor specially adapted for vertical or steep gradient seams
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Road Paving Machines (AREA)
- Earth Drilling (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19681608288 DE1608288B1 (de) | 1968-03-12 | 1968-03-12 | Ausricht- und Fuehrungseinrichtung fuer aus zwei parallel nebeneinander angordneten Rahmen bestehenden Ausbaugespanne |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL80887B1 true PL80887B1 (US20110009641A1-20110113-C00116.png) | 1975-08-30 |
Family
ID=5681511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1969132183A PL80887B1 (US20110009641A1-20110113-C00116.png) | 1968-03-12 | 1969-03-07 |
Country Status (5)
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU464341B2 (en) * | 1970-08-13 | 1975-08-21 | Karl Maria Groetschel | Improvements relating to advancing roof supports for mine workings |
| US4010618A (en) * | 1974-01-19 | 1977-03-08 | Dowty Mining Equipment Limited | Mine roof support |
| DE2646563C3 (de) * | 1976-10-15 | 1979-08-09 | Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum | Ausbau für den Saumbereich eines Strebs |
| PL113252B1 (en) * | 1978-02-23 | 1980-11-29 | Ts Osrodek P K Maszyn Gorniczy | Walking roof supporting structure |
| DE3024465A1 (de) * | 1980-06-28 | 1982-01-28 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Schreitender ausbau fuer untertaegige gewinnungsbetriebe, insbesondere schildausbau |
| GB2165574B (en) * | 1984-10-13 | 1987-11-18 | Dowty Hucknall Limited | Mine roof supports with anti toppling device |
| WO2020092265A1 (en) * | 2018-10-29 | 2020-05-07 | Joy Global Underground Mining Llc | Roof support connector |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1364412A (fr) * | 1963-07-24 | 1964-06-19 | Gewerk Eisenhuette Westfalia | Soutènement hydraulique mobile utilisable au fond dans les mines |
| DE1236451B (de) * | 1963-12-21 | 1967-03-16 | Karl Maria Groetschel Dipl Ing | Zwischen zwei benachbarte Ausbaueinheiten einsetzbares Leitorgan |
| GB1218370A (en) * | 1967-02-16 | 1971-01-06 | Bergwerksverband Gmbh | Advancing mine roof support units for mine workings |
-
1969
- 1969-02-03 BE BE727824D patent/BE727824A/xx unknown
- 1969-02-07 FR FR6902925A patent/FR2003683A1/fr not_active Withdrawn
- 1969-03-07 PL PL1969132183A patent/PL80887B1/pl unknown
- 1969-03-10 GB GB02555/69A patent/GB1248694A/en not_active Expired
- 1969-03-12 US US806566A patent/US3524321A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| BE727824A (US20110009641A1-20110113-C00116.png) | 1969-07-16 |
| GB1248694A (en) | 1971-10-06 |
| FR2003683A1 (US20110009641A1-20110113-C00116.png) | 1969-11-14 |
| US3524321A (en) | 1970-08-18 |
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