GB760654A - Improvements in and relating to mine roof supporting structures - Google Patents
Improvements in and relating to mine roof supporting structuresInfo
- Publication number
- GB760654A GB760654A GB30683/54A GB3068354A GB760654A GB 760654 A GB760654 A GB 760654A GB 30683/54 A GB30683/54 A GB 30683/54A GB 3068354 A GB3068354 A GB 3068354A GB 760654 A GB760654 A GB 760654A
- Authority
- GB
- United Kingdom
- Prior art keywords
- girder
- shoe
- roof
- projections
- mine roof
- 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
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)
- Bridges Or Land Bridges (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
760,654. Mine roof supports. DIRECTIE VAN DE STAATSMIJNEN IN LIMBURG. Oct. 25, 1954 [Oct. 29, 1953]. No. 30683/54. Addition to 709,240. Class 20(2) In a roof supporting structure for mines, an advance girder 3 is supported against the roof, cantiliver fashion, from a girder 1 already in position, by a cap shoe 9 which is provided with inwardly directed projections 10 enabling the shoe 9 to be suspended from the bottom flanges 7 of the girder 1 and displaced therealong until the projections 10 engage faces 12 raised from the level of the bottom flanges 7, in which position of the shoe, a thrust screw 19 is operated to thrust the girder 3 against the roof. The cap shoe may be applied to the girder 1 to rest upon the flanges 7, by sliding it over the end of the girder, or by passing the projections 10 through recesses 8 in the flange 7. The cap shoe 9 may be mounted either with the screw 19 beneath the advance girder 3 as shown, or beneath the girder 1. The girders 1 and 3 are connected by a pin 4 on the girder 3 engaging, a hole 2 in the girder 1, and a sliding bolt, Fig. 2 (not shown), provided on the girder 3 to secure the connection. Specification 709,241 is referred to.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL709240X | 1951-03-07 | ||
| NL760654X | 1953-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB760654A true GB760654A (en) | 1956-11-07 |
Family
ID=31980708
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5534/52A Expired GB709240A (en) | 1951-03-07 | 1952-03-03 | Improvements relating to roof supporting structures, as used in mines |
| GB5535/52A Expired GB709241A (en) | 1951-03-07 | 1952-03-03 | Improvements relating to cap shoes for mine roof supports |
| GB30683/54A Expired GB760654A (en) | 1951-03-07 | 1954-10-25 | Improvements in and relating to mine roof supporting structures |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5534/52A Expired GB709240A (en) | 1951-03-07 | 1952-03-03 | Improvements relating to roof supporting structures, as used in mines |
| GB5535/52A Expired GB709241A (en) | 1951-03-07 | 1952-03-03 | Improvements relating to cap shoes for mine roof supports |
Country Status (4)
| Country | Link |
|---|---|
| BE (3) | BE509661A (en) |
| FR (3) | FR1051786A (en) |
| GB (3) | GB709240A (en) |
| NL (4) | NL159679A (en) |
-
0
- NL NL89595D patent/NL89595C/xx active
- BE BE532795D patent/BE532795A/xx unknown
- BE BE509662D patent/BE509662A/xx unknown
- BE BE509661D patent/BE509661A/xx unknown
- NL NL6811291.A patent/NL159680B/en unknown
- NL NLAANVRAGE7206200,A patent/NL182433B/en unknown
- NL NL159679D patent/NL159679A/xx unknown
-
1952
- 1952-02-23 FR FR1051786D patent/FR1051786A/en not_active Expired
- 1952-02-28 FR FR1051869D patent/FR1051869A/en not_active Expired
- 1952-03-03 GB GB5534/52A patent/GB709240A/en not_active Expired
- 1952-03-03 GB GB5535/52A patent/GB709241A/en not_active Expired
-
1954
- 1954-10-25 GB GB30683/54A patent/GB760654A/en not_active Expired
- 1954-10-26 FR FR67282D patent/FR67282E/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| FR67282E (en) | |
| NL159679A (en) | |
| FR1051786A (en) | 1954-01-19 |
| NL182433B (en) | |
| NL89595C (en) | |
| GB709240A (en) | 1954-05-19 |
| FR1051869A (en) | 1954-01-19 |
| BE532795A (en) | |
| GB709241A (en) | 1954-05-19 |
| NL159680B (en) | |
| BE509661A (en) | |
| BE509662A (en) |
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