GB1002038A - Base plates for pit props - Google Patents
Base plates for pit propsInfo
- Publication number
- GB1002038A GB1002038A GB3142161A GB3142161A GB1002038A GB 1002038 A GB1002038 A GB 1002038A GB 3142161 A GB3142161 A GB 3142161A GB 3142161 A GB3142161 A GB 3142161A GB 1002038 A GB1002038 A GB 1002038A
- Authority
- GB
- United Kingdom
- Prior art keywords
- prop
- strap
- base plates
- plate
- pit props
- 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
- 239000003245 coal 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
- E21D15/54—Details of the ends of 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)
- Suspension Of Electric Lines Or Cables (AREA)
- Emergency Lowering Means (AREA)
Abstract
1,002,038. Base plates for pit props. G. W. HAMMER. Aug. 31, 1961 [Sept. 22, 1960; June 7, 1961], No. 31421/61. Heading E1E. A prop 2 is pivotally connected by means of a bolted strip 3 to a plate 5 which is hinged to a strap 7 secured to the base plate 1 of the prop, the arrangement being such that the prop 2 can tilt in the direction of the coal face. The strap 3 may consist of a U-shaped member secured to a T-piece the leg of which constitutes a fork-like member for attachment to the hinged plate in the shape of the strap components being selected according to the cross-section of the prop employed for examples of which Figs. 2- -8 (not shown) should be referred to.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH0040491 | 1960-09-22 | ||
DEH0042795 | 1961-06-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1002038A true GB1002038A (en) | 1965-08-18 |
Family
ID=25979687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3142161A Expired GB1002038A (en) | 1960-09-22 | 1961-08-31 | Base plates for pit props |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1002038A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3535071A (en) * | 1967-04-03 | 1970-10-20 | Raymond Bore | Mine props |
-
1961
- 1961-08-31 GB GB3142161A patent/GB1002038A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3535071A (en) * | 1967-04-03 | 1970-10-20 | Raymond Bore | Mine props |
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