GB742741A - A lagging iron for use in mines - Google Patents
A lagging iron for use in minesInfo
- Publication number
- GB742741A GB742741A GB16238/53A GB1623853A GB742741A GB 742741 A GB742741 A GB 742741A GB 16238/53 A GB16238/53 A GB 16238/53A GB 1623853 A GB1623853 A GB 1623853A GB 742741 A GB742741 A GB 742741A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hooks
- iron
- hook
- irons
- engaged
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title abstract 12
- 229910052742 iron Inorganic materials 0.000 title abstract 6
- 230000004048 modification Effects 0.000 abstract 4
- 238000012986 modification Methods 0.000 abstract 4
- PMVSDNDAUGGCCE-TYYBGVCCSA-L Ferrous fumarate Chemical compound [Fe+2].[O-]C(=O)\C=C\C([O-])=O PMVSDNDAUGGCCE-TYYBGVCCSA-L 0.000 abstract 3
- 235000000396 iron Nutrition 0.000 abstract 3
- 230000000717 retained effect Effects 0.000 abstract 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
- E21D17/02—Cantilever extension or similar protecting devices
- E21D17/08—Cap joints for obtaining a coal-face free of pit-props
- E21D17/086—Cap joints for obtaining a coal-face free of pit-props or articulated type
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Golf Clubs (AREA)
- Holders For Apparel And Elements Relating To Apparel (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| BE742741X | 1952-07-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB742741A true GB742741A (en) | 1956-01-04 |
Family
ID=3879449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB16238/53A Expired GB742741A (en) | 1952-07-23 | 1953-06-12 | A lagging iron for use in mines |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE513045A (enrdf_load_stackoverflow) |
| FR (1) | FR1077441A (enrdf_load_stackoverflow) |
| GB (1) | GB742741A (enrdf_load_stackoverflow) |
| LU (1) | LU32191A1 (enrdf_load_stackoverflow) |
-
0
- LU LU32191D patent/LU32191A1/xx unknown
- BE BE513045D patent/BE513045A/xx unknown
-
1953
- 1953-05-19 FR FR1077441D patent/FR1077441A/fr not_active Expired
- 1953-06-12 GB GB16238/53A patent/GB742741A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE513045A (enrdf_load_stackoverflow) | |
| LU32191A1 (enrdf_load_stackoverflow) | |
| FR1077441A (fr) | 1954-11-08 |
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