US1851496A - Device for shoring or supporting the roofs of mines - Google Patents
Device for shoring or supporting the roofs of mines Download PDFInfo
- Publication number
- US1851496A US1851496A US268534A US26853428A US1851496A US 1851496 A US1851496 A US 1851496A US 268534 A US268534 A US 268534A US 26853428 A US26853428 A US 26853428A US 1851496 A US1851496 A US 1851496A
- Authority
- US
- United States
- Prior art keywords
- girder
- supporting
- mines
- shoring
- block
- 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 - Lifetime
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 229910001361 White metal Inorganic materials 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 239000010969 white metal Substances 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D17/00—Caps for supporting mine roofs
Definitions
- Fig. 1 is a side view of areinforcing girder constructed according to the invention.
- Fig. 2 is an end view thereof showing the block for anchoring the two ends of the rope.
- Fig. 3 is an end view thereof showing the grooved block at the other end of the girder.
- Fig. 4 is a plan view of the girder from underneath.
- Fig. 5 is a perspective view, of grooved block.
- the T-iron girder A is reinforced by a single wire rope B which passes along both sides of the flange a.
- a block-D is fixed to one end of the girder and this block is provided with an external groove (Z around which the rope B passes.
- a block 0 is affixed at the other end of the girder with two tapering holes 0 to receive the ends of the rope B which are held therein.
- the rope B is held at each end in the block C in the two tapering holes 0, the smallest diameter of which is approximately equal to the diameter of the rope B.
- Each end of the rope B is inserted into a hole 0 and is spread or opened out and the hole is then filled with a suitable alloy or metal (such as white metal) in a molten state so that when the alloy or metal cools the ends of the rope are firmly secured in the block.
- a suitable alloy or metal such as white metal
- a roof supporting girder constructedin accordance with this invention has many advantages over other steel girders as it is of less size than an ordinary steel joist or timber bar of the same strength and moreover gives greater space in the roadway.
- a reinforced girder for supporting the roof in coal mines and. other underground workings comprislng the combination witha T iron of a single reinforcing wire rope extending longitudinally along both sides of the web of the girder, a. grooved block afiixed at one end of the girder around which the wire rope passes and a block at the other end of the girder having two tapering transverse holes to receivethe end of the reinforcing
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)
- Rod-Shaped Construction Members (AREA)
- Catching Or Destruction (AREA)
Description
i atented Mar. 29, 1932 UNITED STATES ROBERT WILLIAM CUTHBERTSON, OF ASHFIELD, RAINHILL, ENGLAND DEVICE FOR SHORING OR SUPPORTING THE ROOFS OF MINES Application filed April 9, 1928, Serial No. 268,534, and in Great Britain May .12, 1927.
This invention relates to improvements in reinforcing girders for shoring or supporting the roof in coal or other mines of the type-1n which the reinforced girder is supported at The invention will be described with reference to the accompanying drawings Fig. 1 is a side view of areinforcing girder constructed according to the invention.
Fig. 2 is an end view thereof showing the block for anchoring the two ends of the rope.
Fig. 3 is an end view thereof showing the grooved block at the other end of the girder.
Fig. 4 is a plan view of the girder from underneath.
Fig. 5 is a perspective view, of grooved block.
The T-iron girder A is reinforced by a single wire rope B which passes along both sides of the flange a. A block-D is fixed to one end of the girder and this block is provided with an external groove (Z around which the rope B passes. A block 0 is affixed at the other end of the girder with two tapering holes 0 to receive the ends of the rope B which are held therein.
The rope B is held at each end in the block C in the two tapering holes 0, the smallest diameter of which is approximately equal to the diameter of the rope B. Each end of the rope B is inserted into a hole 0 and is spread or opened out and the hole is then filled with a suitable alloy or metal (such as white metal) in a molten state so that when the alloy or metal cools the ends of the rope are firmly secured in the block.
A roof supporting girder constructedin accordance with this invention has many advantages over other steel girders as it is of less size than an ordinary steel joist or timber bar of the same strength and moreover gives greater space in the roadway.
What I claim as my invention and desire to protect by Letters Patent is A reinforced girder for supporting the roof in coal mines and. other underground workings comprislng the combination witha T iron of a single reinforcing wire rope extending longitudinally along both sides of the web of the girder, a. grooved block afiixed at one end of the girder around which the wire rope passes and a block at the other end of the girder having two tapering transverse holes to receivethe end of the reinforcing
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB12712/27A GB293520A (en) | 1927-05-12 | 1927-05-12 | Improvements in devices for shoring or supporting the roofs of mines |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1851496A true US1851496A (en) | 1932-03-29 |
Family
ID=40019344
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US268534A Expired - Lifetime US1851496A (en) | 1927-05-12 | 1928-04-09 | Device for shoring or supporting the roofs of mines |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US1851496A (en) |
| BE (1) | BE351241A (en) |
| DE (1) | DE504677C (en) |
| FR (1) | FR654088A (en) |
| GB (1) | GB293520A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE760324C (en) * | 1941-07-19 | 1953-01-26 | Franz Berghoff | Method of excavating struts underground using ropes carried by rammers |
| DE1085836B (en) * | 1955-04-14 | 1960-07-28 | Aug Kloenne Fa | Cap for expansion underground |
| DE1104471B (en) * | 1956-11-05 | 1961-04-13 | Dipl Berging Oskar Eckert | Rope anchor |
-
1927
- 1927-05-12 GB GB12712/27A patent/GB293520A/en not_active Expired
-
1928
- 1928-04-09 US US268534A patent/US1851496A/en not_active Expired - Lifetime
- 1928-05-11 BE BE351241A patent/BE351241A/en unknown
- 1928-05-11 FR FR654088D patent/FR654088A/en not_active Expired
- 1928-05-11 DE DEC41465D patent/DE504677C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB293520A (en) | 1928-07-12 |
| BE351241A (en) | 1928-06-30 |
| DE504677C (en) | 1930-08-14 |
| FR654088A (en) | 1929-04-02 |
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