GB497416A - Telescoping metal shoring prop for mine shafts - Google Patents
Telescoping metal shoring prop for mine shaftsInfo
- Publication number
- GB497416A GB497416A GB7548/37A GB754837A GB497416A GB 497416 A GB497416 A GB 497416A GB 7548/37 A GB7548/37 A GB 7548/37A GB 754837 A GB754837 A GB 754837A GB 497416 A GB497416 A GB 497416A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prop
- section
- mine
- march
- pieces
- 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 title 1
- 239000002131 composite material Substances 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 239000011800 void material 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
- E21D15/50—Component parts or details of props
- E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/14—Lining predominantly with metal
- E21D11/18—Arch members ; Network made of arch members ; Ring elements; Polygon elements; Polygon elements inside arches
- E21D11/22—Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Mechanical Engineering (AREA)
- Tents Or Canopies (AREA)
Abstract
497,416. Mine-roof supports. NIELS, L. March 15, 1937, No. 7548. Void. Convention date, March 17, 1936. [Class 20 (ii)] A telescopic mine prop or arched roof support comprises a T-section member 1 and a composite member formed of two angle-irons 2 spaced apart and joined by bolts or rivets 4 with packing-pieces 3, or by means of pieces 6 welded across either of the spaces between the angles, the web of the T-section bar being guided in this space. Wooden packing 18, Fig. 8, may be used between the flanges of the section-bars and the pressure may be regulated by a clamp comprising U-shaped members 12, 15 and securing nuts 16. The member 15 may be replaced by a flat plate and securing bolts.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE497416X | 1936-03-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB497416A true GB497416A (en) | 1938-12-16 |
Family
ID=3870727
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB7548/37A Expired GB497416A (en) | 1936-03-17 | 1937-03-15 | Telescoping metal shoring prop for mine shafts |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB497416A (en) |
-
1937
- 1937-03-15 GB GB7548/37A patent/GB497416A/en not_active Expired
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB1304798A (en) | ||
| GB497416A (en) | Telescoping metal shoring prop for mine shafts | |
| GB605996A (en) | Improvements in and relating to tie-rods for erecting mine arches and the like | |
| GB273982A (en) | Improvements in or relating to shoring structures for mines | |
| GB483917A (en) | Improvements in or relating to roof-supporting means for use in mines and other underground workings | |
| GB370554A (en) | Improved yielding mine-tubbing | |
| US1699162A (en) | Gas holder | |
| GB549051A (en) | Improvements in trussed beams | |
| GB553815A (en) | Improvements in or relating to the lining of structures | |
| GB306655A (en) | Interlocking joints for metallic columns and girders | |
| DE965847C (en) | Resilient expansion for mining routes and ridges to be intercepted in steep storage | |
| GB515009A (en) | Improvements in or connected with steel arch systems for roof and side support in mine roadways and the like | |
| GB406221A (en) | Improvements relating to metallic stilts for mine arch girders | |
| GB291705A (en) | Improvements in or relating to shoring structures for mines | |
| GB705664A (en) | Improvements in telescopic mining props or like devices | |
| GB385749A (en) | Improvements in and relating to roof supporting devices for coal and other mines | |
| GB345196A (en) | Shoring frame for use in mines | |
| GB423611A (en) | Improvements in and relating to joints for mine arch section metal bars | |
| GB487826A (en) | Lugged stilts for roof supports in mines | |
| GB404174A (en) | Improved connection of the steel or iron bows in timbering underground-workings | |
| GB400468A (en) | Improvements in jointing and reinforcing the composite parts of steel arches, props and cambered bars, for use in mines and like places | |
| GB390959A (en) | Improvements in jointing and reinforcing the composite parts of steel arches, props and cambered bars, for use in mines and like places | |
| GB697574A (en) | Tubular metal struts | |
| GB932789A (en) | Improvements in or relating to trough-shaped support sections particularly for sliding arch mine roof supports | |
| GB489886A (en) | Improvements in sectional moulds for concrete and like structures |