GB501414A - Improvements in or relating to pit supports or the like - Google Patents
Improvements in or relating to pit supports or the likeInfo
- Publication number
- GB501414A GB501414A GB23453/37A GB2345337A GB501414A GB 501414 A GB501414 A GB 501414A GB 23453/37 A GB23453/37 A GB 23453/37A GB 2345337 A GB2345337 A GB 2345337A GB 501414 A GB501414 A GB 501414A
- Authority
- GB
- United Kingdom
- Prior art keywords
- section
- united
- inset
- sections
- flange
- 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
- 238000003466 welding Methods 0.000 abstract 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 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
- E21D15/502—Prop bodies characterised by their shape, e.g. of specified cross-section
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)
- Body Structure For Vehicles (AREA)
Abstract
501,414. Mine supports. GERLACH, K. Aug. 26, 1937, No. 23453. Convention date, Oct. 7, 1936. [Class 20 (ii)] A section-iron is formed with a flange portion having projections thereon to form webs, these projections being inset from the edges of the bar section, and such section-irons may be united to form box-sections for use as mine supports or pillars. The main portion 1 has two inset web portions 2 and two such bars may be united by welding together the abutting edges of the web portions, as shown in Fig. 1. The sectioniron may be in the form of an I-section and such sections are united by welding along the abutting edges of the flanges 1, as shown in Fig. 2, the web 2 being Inset from the edge of the flanges in each section. In another form, the hollow section is formed as shown in Fig. 3, by welding together two angle-sections, the portions 3 of one flange of each section overhanging the other flange 2.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE501414X | 1936-10-07 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB501414A true GB501414A (en) | 1939-02-27 |
Family
ID=6545758
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB23453/37A Expired GB501414A (en) | 1936-10-07 | 1937-08-26 | Improvements in or relating to pit supports or the like |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB501414A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2726743A (en) * | 1951-05-21 | 1955-12-13 | Robert J Short | Telescoped open web beam construction |
DE976548C (en) * | 1943-09-25 | 1963-11-07 | Karl Maria Dipl-Ing Groetschel | Cap for pit lining, preferably for longwall mining |
US3284590A (en) * | 1965-08-04 | 1966-11-08 | Reynolds Metals Co | Air break switch and a mounting base therefor |
-
1937
- 1937-08-26 GB GB23453/37A patent/GB501414A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE976548C (en) * | 1943-09-25 | 1963-11-07 | Karl Maria Dipl-Ing Groetschel | Cap for pit lining, preferably for longwall mining |
US2726743A (en) * | 1951-05-21 | 1955-12-13 | Robert J Short | Telescoped open web beam construction |
US3284590A (en) * | 1965-08-04 | 1966-11-08 | Reynolds Metals Co | Air break switch and a mounting base therefor |
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