GB676582A - Improvements in and relating to roof supporting means for mine galleries and the like - Google Patents
Improvements in and relating to roof supporting means for mine galleries and the likeInfo
- Publication number
- GB676582A GB676582A GB18685/50A GB1868550A GB676582A GB 676582 A GB676582 A GB 676582A GB 18685/50 A GB18685/50 A GB 18685/50A GB 1868550 A GB1868550 A GB 1868550A GB 676582 A GB676582 A GB 676582A
- Authority
- GB
- United Kingdom
- Prior art keywords
- head plate
- prop
- head
- roof
- distance
- 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
- 239000003245 coal Substances 0.000 abstract 2
- 101100521345 Mus musculus Prop1 gene Proteins 0.000 abstract 1
- 108700017836 Prophet of Pit-1 Proteins 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
- E21D15/58—Devices for setting props or chocks
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/082—Cap joints for obtaining a coal-face free of pit-props of sliding type
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)
- Structural Engineering (AREA)
- Load-Engaging Elements For Cranes (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
676,582. Mine roof supports. DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG. July 26, 1950 [July 29, 1949], No. 18685/50. Class 20(ii). Mine roof supports are erected and advanced with the coal face by erecting a telescopic prop 1, Fig. 1b, with a head plate 2, e.g. as described in Specification 676,583, pivotally connecting at 3 by pin and hole one end of a distance member 4 to the head plate 2 and connecting at the other end a further head plate 5, swinging the member 4 and head plate 5 upwards to bring the latter against the roof as shown in Fig. 1c, making a second pin and hole connection at 8 to hold them in that position and subsequently erecting a prop 9, Fig. 1d, under the head plate 5. A further distance member and head plate may be connected to the head plate 5 and swung up and supported cantilever fashion even before the prop 9 is erected under the head plate 5. The head plate 5, Fig. 1b, is connected to the distance piece 4 by pin and hole connections 6, 7 and after erection of the prop 9,. Fig. 1d, the pins 7, 8 are removed to leave the distance piece 4 pivotally connected to both head plates 2, 5. Roof supporting girders 11, Fig. 3, are carried by brackets 10 on thehead plates and can slide in the brackets towards the coal face. Alternatively instead of the girders 11, the distance pieces may be adapted to support the roof between the head plates. Caving is effected after release of the prop by allowing the distance piece and connected head plate to swing downwardly towards the succeeding prop.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL676582X | 1949-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB676582A true GB676582A (en) | 1952-07-30 |
Family
ID=19802301
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB18685/50A Expired GB676582A (en) | 1949-07-29 | 1950-07-26 | Improvements in and relating to roof supporting means for mine galleries and the like |
Country Status (3)
| Country | Link |
|---|---|
| DE (1) | DE827052C (en) |
| GB (1) | GB676582A (en) |
| NL (1) | NL70374C (en) |
-
0
- NL NL70374D patent/NL70374C/xx active
-
1950
- 1950-07-26 GB GB18685/50A patent/GB676582A/en not_active Expired
- 1950-07-27 DE DEN1576A patent/DE827052C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE827052C (en) | 1952-01-07 |
| NL70374C (en) |
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