DE2264239A1 - - Google Patents
Info
- Publication number
- DE2264239A1 DE2264239A1 DE19722264239 DE2264239A DE2264239A1 DE 2264239 A1 DE2264239 A1 DE 2264239A1 DE 19722264239 DE19722264239 DE 19722264239 DE 2264239 A DE2264239 A DE 2264239A DE 2264239 A1 DE2264239 A1 DE 2264239A1
- Authority
- DE
- Germany
- 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.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F13/00—Transport specially adapted to underground conditions
- E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
- E21F13/086—Armoured conveyors shifting devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/08—Guiding the machine
- E21C35/12—Guiding the machine along a conveyor for the cut material
- E21C35/14—Equipment for pressing the conveyor towards the working face
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- 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
- E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
- E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
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)
- Mechanical Engineering (AREA)
- Fluid-Pressure Circuits (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722264239 DE2264239C2 (de) | 1972-12-30 | 1972-12-30 | Hydraulische Vorschubeinrichtung mit einstellbarer Hubunterteilung |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19722264239 DE2264239C2 (de) | 1972-12-30 | 1972-12-30 | Hydraulische Vorschubeinrichtung mit einstellbarer Hubunterteilung |
Publications (3)
Publication Number | Publication Date |
---|---|
DE2264239A1 true DE2264239A1 (US08177716-20120515-C00003.png) | 1974-01-24 |
DE2264239B1 DE2264239B1 (de) | 1974-01-24 |
DE2264239C2 DE2264239C2 (de) | 1974-08-22 |
Family
ID=5865824
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19722264239 Expired DE2264239C2 (de) | 1972-12-30 | 1972-12-30 | Hydraulische Vorschubeinrichtung mit einstellbarer Hubunterteilung |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE2264239C2 (US08177716-20120515-C00003.png) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3329636A1 (de) * | 1983-08-17 | 1985-03-07 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Hydraulische steuerung eines rueck- und schreitzylinders fuer untertaegige ausbau- und gewinnungsanlagen u. dgl. |
DE3808326A1 (de) * | 1988-03-12 | 1989-09-21 | Ruhrkohle Ag | Einrichtung zum ruecken des foerderers in abbaubetrieben |
-
1972
- 1972-12-30 DE DE19722264239 patent/DE2264239C2/de not_active Expired
Also Published As
Publication number | Publication date |
---|---|
DE2264239C2 (de) | 1974-08-22 |
DE2264239B1 (de) | 1974-01-24 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
E77 | Valid patent as to the heymanns-index 1977 |