GB758656A - Feed devices for coal-face conveyors or the like - Google Patents
Feed devices for coal-face conveyors or the likeInfo
- Publication number
- GB758656A GB758656A GB20785/53A GB2078553A GB758656A GB 758656 A GB758656 A GB 758656A GB 20785/53 A GB20785/53 A GB 20785/53A GB 2078553 A GB2078553 A GB 2078553A GB 758656 A GB758656 A GB 758656A
- Authority
- GB
- United Kingdom
- Prior art keywords
- strut
- cylinder
- pivoted
- coal
- ground
- 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.)
- Expired
Links
- 230000004048 modification Effects 0.000 abstract 2
- 238000012986 modification Methods 0.000 abstract 2
- 239000003245 coal Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
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
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Ship Loading And Unloading (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
758,656. Pushing jacks. BEUKENBERG, H., [trading as MASCHINENFABRIK GLUCKAUF G. KLERNER]. July 27, 1953 [Sept. 26, 1952], No. 20785/53. Class 78 (3). A fluid pressure jack for adjusting a coal face conveyer has a reaction strut which is located between the conveyer and the adjacent end of the cylinder and is pivoted to a ground-engaging foot to which is also attached the said end of the cylinder. The ground-engaging foot 10 is pivoted at 9 to a cylinder head extending over a pair of cylinders 2, and at 6 to the strut 4. A spring 7 urges the strut into engagement with the mine roof and the strut may be hydraulically extensible. In a modification (not shown) the arrangement is incorporated in a single cylinder jack. In a further modification (not shown) the cylinder head is rigidly secured to a foot member and is pivoted directly to the strut.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE758656X | 1952-09-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB758656A true GB758656A (en) | 1956-10-10 |
Family
ID=6660326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB20785/53A Expired GB758656A (en) | 1952-09-26 | 1953-07-27 | Feed devices for coal-face conveyors or the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB758656A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1219429B (en) * | 1964-02-28 | 1966-06-23 | Gewerk Eisenhuette Westfalia | Spreading device for conveyors in underground mining operations |
-
1953
- 1953-07-27 GB GB20785/53A patent/GB758656A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1219429B (en) * | 1964-02-28 | 1966-06-23 | Gewerk Eisenhuette Westfalia | Spreading device for conveyors in underground mining operations |
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