GB342876A - Improvements in pit props - Google Patents
Improvements in pit propsInfo
- Publication number
- GB342876A GB342876A GB1827/30A GB182730A GB342876A GB 342876 A GB342876 A GB 342876A GB 1827/30 A GB1827/30 A GB 1827/30A GB 182730 A GB182730 A GB 182730A GB 342876 A GB342876 A GB 342876A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sleeve
- main portion
- consett
- bearing plate
- mine 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
- 239000002184 metal Substances 0.000 abstract 2
- 229910052751 metal Inorganic materials 0.000 abstract 2
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910052742 iron Inorganic materials 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
-
- 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
- E04G25/06—Shores or struts; Chocks telescopic with parts held together by positive means
- E04G25/066—Shores or struts; Chocks telescopic with parts held together by positive means by a wedge
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structural Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Civil Engineering (AREA)
- Floor Finish (AREA)
Abstract
342,876. Mine props. CONSETT IRON CO., Ltd. and SCHOLES, J., Lea Hurst, Aynsley Terrace, both in Consett, Durham. Jan. 18, 1930, No. 1827. [Class 20 (ii).] Mine props of the type comprising a main portion, a slidable sleeve with a wooden plug on the end of the main portion, and a metal wedge passing through apertures in the sleeve whereby it may be adjusted with respect to the main portion, are provided with continuous metal bearing plates 7 formed integrally with or secured to the sleeves 5 to rest upon the upper surface of the adjusting wedges 3 which are of hollow formation. The bearing plate may be welded to the sleeve or according to the Provisional Specification, parts of the sleeve may be slit and bent over to form an integral bearing plate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1827/30A GB342876A (en) | 1930-01-18 | 1930-01-18 | Improvements in pit props |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1827/30A GB342876A (en) | 1930-01-18 | 1930-01-18 | Improvements in pit props |
Publications (1)
Publication Number | Publication Date |
---|---|
GB342876A true GB342876A (en) | 1931-02-12 |
Family
ID=9728688
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1827/30A Expired GB342876A (en) | 1930-01-18 | 1930-01-18 | Improvements in pit props |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB342876A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE864238C (en) * | 1949-03-08 | 1953-01-22 | Press Und Stanzwerk Golzheim | Robbery shoe for stamp heads |
US3632075A (en) * | 1969-04-02 | 1972-01-04 | Devars Naudo & Cie Entreprises | Dismantling keybolt for a propping-up and supporting framework |
-
1930
- 1930-01-18 GB GB1827/30A patent/GB342876A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE864238C (en) * | 1949-03-08 | 1953-01-22 | Press Und Stanzwerk Golzheim | Robbery shoe for stamp heads |
US3632075A (en) * | 1969-04-02 | 1972-01-04 | Devars Naudo & Cie Entreprises | Dismantling keybolt for a propping-up and supporting framework |
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