JPS4834641B1 - - Google Patents
Info
- Publication number
- JPS4834641B1 JPS4834641B1 JP43050631A JP5063168A JPS4834641B1 JP S4834641 B1 JPS4834641 B1 JP S4834641B1 JP 43050631 A JP43050631 A JP 43050631A JP 5063168 A JP5063168 A JP 5063168A JP S4834641 B1 JPS4834641 B1 JP S4834641B1
- 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
- E21D23/0409—Aligning or guiding means for the supports or for the constitutive parts of the supports
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Lining And Supports For Tunnels (AREA)
- Chain Conveyers (AREA)
- Escalators And Moving Walkways (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3321867 | 1967-07-19 | ||
GB3850967A GB1222204A (en) | 1967-07-19 | 1967-07-19 | Advancing mine roof supports |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS4834641B1 true JPS4834641B1 (en) | 1973-10-23 |
Family
ID=26261771
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP43050631A Pending JPS4834641B1 (en) | 1967-07-19 | 1968-07-19 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3525227A (en) |
JP (1) | JPS4834641B1 (en) |
DE (1) | DE1758675B1 (en) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1394675A (en) * | 1971-07-16 | 1975-05-21 | Gullick Dobson Ltd | Mine roof support systems |
GB1472552A (en) * | 1974-11-15 | 1977-05-04 | Gullick Dobson Ltd | Mine roof supports |
DE2506779C3 (en) * | 1975-02-18 | 1980-11-13 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Arrangement to the back of shield support |
DE2758663C2 (en) * | 1977-12-29 | 1982-07-01 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Walker arrangement for a walker extension of the inclined and steep storage |
GB2060043B (en) * | 1977-12-29 | 1982-08-25 | Gewerk Eisenhuette Westfalia | Mine roof support assembly |
DE2904544B2 (en) * | 1979-02-07 | 1980-11-27 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Rear device for hydraulic shield support frames |
DE3034645A1 (en) * | 1980-09-13 | 1982-04-29 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | TREADMILL FOR A SCREW EXTENSION, ESPECIALLY FOR A SHIELD OR BOCK REMOVAL |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB1051783A (en) * | 1900-01-01 | |||
US2644311A (en) * | 1951-08-16 | 1953-07-07 | Malloy Paul V | Self-propelled mine roof prop |
GB930838A (en) * | 1960-08-31 | 1963-07-10 | Gullick Ltd | Improvements in or relating to roof supports for mines and the like |
DE1290506B (en) * | 1962-11-10 | 1969-03-13 | Groetschel Karl Maria | Traveling extension unit |
FR1325840A (en) * | 1962-03-23 | 1963-05-03 | Charbonnages De France | Device for controlling the movements of a mobile object provided with its own means of locomotion according to its position relative to another mobile object whose movements it must follow, applicable more particularly to walking supports in mines |
GB965172A (en) * | 1962-04-06 | 1964-07-29 | Gullick Ltd | Improvements in or relating to roof supports for mines and the like |
GB1026965A (en) * | 1963-06-11 | 1966-04-20 | Dowty Mining Equipment Ltd | Advanceable roof supports suitable for use in mines |
GB1044907A (en) * | 1963-08-08 | 1966-10-05 | Electro Hydraulics Ltd | Improvements in or relating to mine roof supports |
US3333426A (en) * | 1964-04-11 | 1967-08-01 | Gullick Ltd | Self-advancing hydraulically extensible mine roof supports |
GB1057157A (en) * | 1964-08-19 | 1967-02-01 | Mastabar Mining Equip Co Ltd | Improvements in and relating to mine roof supports |
GB1059557A (en) * | 1964-11-17 | 1967-02-22 | Dowty Mining Equipment Ltd | Mine roof support assembly |
-
1968
- 1968-07-19 US US746070A patent/US3525227A/en not_active Expired - Lifetime
- 1968-07-19 DE DE19681758675 patent/DE1758675B1/en active Pending
- 1968-07-19 JP JP43050631A patent/JPS4834641B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
US3525227A (en) | 1970-08-25 |
DE1758675B1 (en) | 1972-05-31 |