DE1072576B - - Google Patents
Info
- Publication number
- DE1072576B DE1072576B DENDAT1072576D DE1072576DA DE1072576B DE 1072576 B DE1072576 B DE 1072576B DE NDAT1072576 D DENDAT1072576 D DE NDAT1072576D DE 1072576D A DE1072576D A DE 1072576DA DE 1072576 B DE1072576 B DE 1072576B
- Authority
- DE
- Germany
- Prior art keywords
- punch
- feet
- extension frame
- sleeper
- spring leaf
- Prior art date
- 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
- 241001669679 Eleotris Species 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 2
- 238000005065 mining Methods 0.000 claims description 2
- 239000010959 steel Substances 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 2
- 229910052742 iron Inorganic materials 0.000 claims 1
- 235000000396 iron Nutrition 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000013585 weight reducing agent Substances 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
-
- 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
- E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
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)
- Food-Manufacturing Devices (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1072576B true DE1072576B (enrdf_load_stackoverflow) | 1960-01-07 |
Family
ID=597012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT1072576D Pending DE1072576B (enrdf_load_stackoverflow) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1072576B (enrdf_load_stackoverflow) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1143771B (de) * | 1960-02-24 | 1963-02-21 | Hemscheidt Maschf Hermann | Wandernder hydraulischer Strebausbau fuer die steile Lagerung bei schwebendem Verhieb |
| DE1155077B (de) * | 1960-12-24 | 1963-10-03 | Rheinstahl Gmbh Wanheim | Sohlstueck fuer wandernde Ausbauelemente |
-
0
- DE DENDAT1072576D patent/DE1072576B/de active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1143771B (de) * | 1960-02-24 | 1963-02-21 | Hemscheidt Maschf Hermann | Wandernder hydraulischer Strebausbau fuer die steile Lagerung bei schwebendem Verhieb |
| DE1155077B (de) * | 1960-12-24 | 1963-10-03 | Rheinstahl Gmbh Wanheim | Sohlstueck fuer wandernde Ausbauelemente |
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