GB775343A - Chock structures for supporting mine roofs - Google Patents
Chock structures for supporting mine roofsInfo
- Publication number
- GB775343A GB775343A GB2911753A GB2911753A GB775343A GB 775343 A GB775343 A GB 775343A GB 2911753 A GB2911753 A GB 2911753A GB 2911753 A GB2911753 A GB 2911753A GB 775343 A GB775343 A GB 775343A
- Authority
- GB
- United Kingdom
- Prior art keywords
- chock
- members
- plates
- hooks
- welded
- 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
- 239000002184 metal Substances 0.000 abstract 1
- 238000005065 mining Methods 0.000 abstract 1
Classifications
-
- 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
- E21D15/48—Chocks or the like
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Connection Of Plates (AREA)
Abstract
775,343. Mine chocks. MINING ENGINEERING CO., Ltd. Oct. 14, 1954 [Oct. 21, 1953; Nov. 9, 19531. Nos. 29117/53 and 31004/53. Class 20(2) . A chock base is built up of superposed tiers 8, Fig. 1, connected by hooks 11. A tier 8 comprises two chock members each comprising two hollow members 10 connected by a plate 9 the two chock members being connected together by plates 15 with hooks 14. Further similar tiers are mounted on one another but turned through a right angle to the tier below. The lowest tier is mounted on four hollow members 3 of square cross section welded on a base plate 1 and connected together by plates 5. A top plate 16 carries two locking plates 17 connecting two chock members and also known chock releases 19 connected by plates 21 and engaging the top chock members by hooks 20. A chock member may comprise two concrete blocks 37, Fig. 2, cast round the ends of a metal plate 30 in which is a V-bend 31 to the apex of which is welded a rod 32 having also welded to it a channel 35 having a flange 39 to engage the connecting plates between chock members. The rod 32 is bent at both ends to form at the lower end the chock member connecting hooks and at the upper end in association with a recess 38 a seat for a hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2911753A GB775343A (en) | 1953-10-21 | 1953-10-21 | Chock structures for supporting mine roofs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2911753A GB775343A (en) | 1953-10-21 | 1953-10-21 | Chock structures for supporting mine roofs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB775343A true GB775343A (en) | 1957-05-22 |
Family
ID=10286430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2911753A Expired GB775343A (en) | 1953-10-21 | 1953-10-21 | Chock structures for supporting mine roofs |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB775343A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2160914A (en) * | 1984-06-09 | 1986-01-02 | John Douglas Thompson | Mine chock construction |
| GB2169630A (en) * | 1985-01-16 | 1986-07-16 | H L & H Timber Products | Mat pack brick |
-
1953
- 1953-10-21 GB GB2911753A patent/GB775343A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2160914A (en) * | 1984-06-09 | 1986-01-02 | John Douglas Thompson | Mine chock construction |
| GB2169630A (en) * | 1985-01-16 | 1986-07-16 | H L & H Timber Products | Mat pack brick |
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