GB352112A - Improvements in or relating to caps and base plates for use with pit props for supporting crown trees and arches such as are employed for colliery or mining roof supports - Google Patents
Improvements in or relating to caps and base plates for use with pit props for supporting crown trees and arches such as are employed for colliery or mining roof supportsInfo
- Publication number
- GB352112A GB352112A GB1172630A GB1172630A GB352112A GB 352112 A GB352112 A GB 352112A GB 1172630 A GB1172630 A GB 1172630A GB 1172630 A GB1172630 A GB 1172630A GB 352112 A GB352112 A GB 352112A
- Authority
- GB
- United Kingdom
- Prior art keywords
- caps
- colliery
- arches
- relating
- employed
- 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
- 238000005065 mining Methods 0.000 title 1
- 239000002184 metal Substances 0.000 abstract 2
- 230000000717 retained effect 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
- E21D15/50—Component parts or details of props
- E21D15/54—Details of the ends of props
-
- 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
- E21D11/30—Bases for lower arch members
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)
- Mechanical Engineering (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Suspension Of Electric Lines Or Cables (AREA)
Abstract
352,112. Mine supports. DARLING- TON ROLLING MILLS CO., Ltd., Rise Carr Rolling Mills, Whessoe Road, and ELLAM, H., 23, Greenbank Crescent, both in Darlington, Co. Durham. April 14, 1930, No. 11726. [Class 20 (ii).] End caps for metal shores or cambered bars in mines are formed of corrugated sheets of metal with portion 15 of the lower corrugations removed to form apertures to receive the webs of the supporting members, the flanges 16 of which are retained in the outer corrugations and form stops to prevent lateral movement of the caps. The ends 14 of the caps are turned to lie parallel to the plane of the cap. The caps may be secured to the ends of the supporting members 2 by swaging over their ends beyond the limits of the apertures as shown at 17, Fig. 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1172630A GB352112A (en) | 1930-04-14 | 1930-04-14 | Improvements in or relating to caps and base plates for use with pit props for supporting crown trees and arches such as are employed for colliery or mining roof supports |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1172630A GB352112A (en) | 1930-04-14 | 1930-04-14 | Improvements in or relating to caps and base plates for use with pit props for supporting crown trees and arches such as are employed for colliery or mining roof supports |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB352112A true GB352112A (en) | 1931-07-09 |
Family
ID=9991541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1172630A Expired GB352112A (en) | 1930-04-14 | 1930-04-14 | Improvements in or relating to caps and base plates for use with pit props for supporting crown trees and arches such as are employed for colliery or mining roof supports |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB352112A (en) |
-
1930
- 1930-04-14 GB GB1172630A patent/GB352112A/en not_active Expired
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