GB410565A - Improvements in or relating to chock releases for use in mines and similar workings - Google Patents
Improvements in or relating to chock releases for use in mines and similar workingsInfo
- Publication number
- GB410565A GB410565A GB180333A GB180333A GB410565A GB 410565 A GB410565 A GB 410565A GB 180333 A GB180333 A GB 180333A GB 180333 A GB180333 A GB 180333A GB 410565 A GB410565 A GB 410565A
- Authority
- GB
- United Kingdom
- Prior art keywords
- wedge
- chock
- ribs
- wedges
- members
- 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
- 230000003245 working effect Effects 0.000 title 1
- 239000002023 wood Substances 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
- E21D15/60—Devices for withdrawing props or chocks
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)
- Joining Of Building Structures In Genera (AREA)
Abstract
410,565. Wedges. WOOD & CO., Ltd., H., Sun Buildings, Collingwood Street, BRITTON, W., 2, Brompton Terrace, Whickham, both in Newcastle-on-Tyne, and HAYES, A., 10, Aintree Gardens, Gateshead, Co. Durham. Jan. 19, 1933, No. 1803. [Class 89 (ii).] A wedge chock comprises opposed longitudinal members 1 each provided with wedge-pieces 2 at each end, longitudinally moving wedge portions 5 to coact with the wedge-pieces, and releasable means 6 to cause movement of the longitudinally moving wedges. Intermediate coacting wedge portions 7 and 8 may be provided on the opposed members 1 and wedges 5, respectively, to give further support to the central part of the chock and for this purpose also the transversely-moving actuating-wedge 6 may have vertical wedge-ribs 10 to coact with transverse wedge-ribs 9 on the outer members. As shown, the releasable means comprises a wedge 6 with ribs 6<a>, 6b, Fig. 5, to prevent detachment, and double inclined wedge surfaces 6<c>, 6d for quick and slow adjustment. The outer members are provided with slotted links 3 for loose attachment. The central actuating wedge may be replaced by toggle-levers or by a reverse-screwed shaft.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB180333A GB410565A (en) | 1933-01-19 | 1933-01-19 | Improvements in or relating to chock releases for use in mines and similar workings |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB180333A GB410565A (en) | 1933-01-19 | 1933-01-19 | Improvements in or relating to chock releases for use in mines and similar workings |
Publications (1)
Publication Number | Publication Date |
---|---|
GB410565A true GB410565A (en) | 1934-05-24 |
Family
ID=9728268
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB180333A Expired GB410565A (en) | 1933-01-19 | 1933-01-19 | Improvements in or relating to chock releases for use in mines and similar workings |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB410565A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1176592B (en) * | 1958-03-14 | 1964-08-27 | Paurat F | Multi-part route extension for underground spaces |
GB2302889A (en) * | 1995-06-30 | 1997-02-05 | Bms Mine Supports | A pre-stressing device for a mine prop |
-
1933
- 1933-01-19 GB GB180333A patent/GB410565A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1176592B (en) * | 1958-03-14 | 1964-08-27 | Paurat F | Multi-part route extension for underground spaces |
GB2302889A (en) * | 1995-06-30 | 1997-02-05 | Bms Mine Supports | A pre-stressing device for a mine prop |
GB2302889B (en) * | 1995-06-30 | 1999-03-10 | Bms Mine Supports | Mine support |
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