GB330064A - An improved prop for use in mines and the like - Google Patents
An improved prop for use in mines and the likeInfo
- Publication number
- GB330064A GB330064A GB1186729A GB1186729A GB330064A GB 330064 A GB330064 A GB 330064A GB 1186729 A GB1186729 A GB 1186729A GB 1186729 A GB1186729 A GB 1186729A GB 330064 A GB330064 A GB 330064A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mines
- wedge
- sleeve
- prop
- socket
- 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 abstract 1
- 239000002023 wood 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
- E21D15/52—Extensible units located above or below standard 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)
- Buckles (AREA)
- Orthopedics, Nursing, And Contraception (AREA)
Abstract
330,064. Ritchie, A. M. April 17, 1929. Mine props are formed with a tubular main portion a having a wood filling f and a sleeve b secured to its upper end adapted to receive a sliding metal socket c adjustable by means of a cross-wedge d passing through opposed apertures in the sleeve. The lower end of the socket portion and upper end of the main prop portion may be provided with abutment plates i, g, respectively, or the ends of these portions may be closed by diaphragms to form abutment surfaces for the wedge.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1186729A GB330064A (en) | 1929-04-17 | 1929-04-17 | An improved prop for use in mines and the like |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1186729A GB330064A (en) | 1929-04-17 | 1929-04-17 | An improved prop for use in mines and the like |
Publications (1)
Publication Number | Publication Date |
---|---|
GB330064A true GB330064A (en) | 1930-06-05 |
Family
ID=9994129
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1186729A Expired GB330064A (en) | 1929-04-17 | 1929-04-17 | An improved prop for use in mines and the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB330064A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE947878C (en) * | 1954-01-21 | 1956-08-23 | Gutehoffnungshuette Sterkrade | Clamp lock for multi-part pit stamp |
-
1929
- 1929-04-17 GB GB1186729A patent/GB330064A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE947878C (en) * | 1954-01-21 | 1956-08-23 | Gutehoffnungshuette Sterkrade | Clamp lock for multi-part pit stamp |
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