GB2012335A - Props - Google Patents
PropsInfo
- Publication number
- GB2012335A GB2012335A GB7835891A GB7835891A GB2012335A GB 2012335 A GB2012335 A GB 2012335A GB 7835891 A GB7835891 A GB 7835891A GB 7835891 A GB7835891 A GB 7835891A GB 2012335 A GB2012335 A GB 2012335A
- Authority
- GB
- United Kingdom
- Prior art keywords
- double wedge
- tubes
- wedge clamp
- props
- effected
- 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.)
- Withdrawn
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G25/08—Shores or struts; Chocks telescopic with parts held relatively to each other by friction or gripping
-
- 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
- E21D15/52—Extensible units located above or below standard props
- E21D15/523—Extensible units located above or below standard props with hydraulic or pneumatic control
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G25/00—Shores or struts; Chocks
- E04G25/04—Shores or struts; Chocks telescopic
- E04G2025/047—Shores or struts; Chocks telescopic which telescoping action effected by a piston
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Geochemistry & Mineralogy (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Supports For Pipes And Cables (AREA)
- Rigid Pipes And Flexible Pipes (AREA)
- Clamps And Clips (AREA)
Abstract
A telescopic prop comprising inner and outer tubes 1, 2 is extended by an hydraulic jack 6 arranged between wedge clamps 7, 8 on the tubes 1, 2 respectively. Coarse adjustment is effected by means of a temporary double wedge clamp 3. A second support plate 15 may be held in place by another double wedge clamp 13. <IMAGE>
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
LB457877 | 1977-09-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2012335A true GB2012335A (en) | 1979-07-25 |
Family
ID=19720865
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7835891A Withdrawn GB2012335A (en) | 1977-09-10 | 1978-09-07 | Props |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE2839371A1 (en) |
GB (1) | GB2012335A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020211107A1 (en) * | 2019-04-18 | 2020-10-22 | 东北大学 | Artificial ore pillar for underground support and construction method therefor |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9310107U1 (en) * | 1993-07-07 | 1993-11-18 | Dietrich Rolf | Plasterer tripod |
DE29514636U1 (en) * | 1995-09-12 | 1995-11-23 | Thomae Uwe | Ceiling-high shut-off device |
CN110230396B (en) * | 2019-05-23 | 2021-05-11 | 浙江宝盛建设集团有限公司 | Support changing method for pouring positioning and early-dismantling formwork of large-span beam |
-
1978
- 1978-09-07 GB GB7835891A patent/GB2012335A/en not_active Withdrawn
- 1978-09-09 DE DE19782839371 patent/DE2839371A1/en not_active Withdrawn
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2020211107A1 (en) * | 2019-04-18 | 2020-10-22 | 东北大学 | Artificial ore pillar for underground support and construction method therefor |
Also Published As
Publication number | Publication date |
---|---|
DE2839371A1 (en) | 1979-03-22 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |