GB114640A - Improvements in connection with Reinforced Concrete Pit-props and like Supports. - Google Patents
Improvements in connection with Reinforced Concrete Pit-props and like Supports.Info
- Publication number
- GB114640A GB114640A GB331117A GB331117A GB114640A GB 114640 A GB114640 A GB 114640A GB 331117 A GB331117 A GB 331117A GB 331117 A GB331117 A GB 331117A GB 114640 A GB114640 A GB 114640A
- Authority
- GB
- United Kingdom
- Prior art keywords
- props
- rods
- reinforced
- concrete pit
- wire
- 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
- 239000011150 reinforced concrete Substances 0.000 title abstract 2
- 239000002184 metal Substances 0.000 abstract 2
- 230000002787 reinforcement Effects 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
- E21D15/02—Non-telescopic props
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)
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Abstract
114,640. Seward, E. March 6, 1917. Mine props.-A reinforced-concrete pit prop or like support consists of a column or strut in which the longitudinal rods B are combined with metal keeps or spacing-members such as collars C, Fig. 4, or wire hoops e, Fig. 5. The rods are passed through holes in the collars, or are secured to the hoops by a wire binding f. The reinforcement is sheathed from end to end with expanded metal, wire netting, or spiral wiring b. The roof or base support blocks G, Fig. 7, also reinforced with rods, keeps, and sheathing, are formed at the ends with notches K to engage corresponding bevelled ends K<1> on the props, and on their upper or lower faces may have grooves or flats to receive wedges. Independent wedges may be applied on the upper ends of the props, and the lower ends may be made convex.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB331117A GB114640A (en) | 1917-03-06 | 1917-03-06 | Improvements in connection with Reinforced Concrete Pit-props and like Supports. |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB331117A GB114640A (en) | 1917-03-06 | 1917-03-06 | Improvements in connection with Reinforced Concrete Pit-props and like Supports. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB114640A true GB114640A (en) | 1918-04-08 |
Family
ID=32244286
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB331117A Expired GB114640A (en) | 1917-03-06 | 1917-03-06 | Improvements in connection with Reinforced Concrete Pit-props and like Supports. |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB114640A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1608527B1 (en) * | 1964-10-13 | 1970-05-21 | Aug Kloenne Fa | Underground expansion |
| US4534531A (en) * | 1980-07-22 | 1985-08-13 | Brown Allan H G | Elongated prop for supporting a load |
-
1917
- 1917-03-06 GB GB331117A patent/GB114640A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1608527B1 (en) * | 1964-10-13 | 1970-05-21 | Aug Kloenne Fa | Underground expansion |
| US4534531A (en) * | 1980-07-22 | 1985-08-13 | Brown Allan H G | Elongated prop for supporting a load |
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