US1851496A - Device for shoring or supporting the roofs of mines - Google Patents

Device for shoring or supporting the roofs of mines Download PDF

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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
Application number
US268534A
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English (en)
Inventor
Robert W. Cuthbertson
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US1851496A publication Critical patent/US1851496A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)
US268534A 1927-05-12 1928-04-09 Device for shoring or supporting the roofs of mines Expired - Lifetime US1851496A (en)

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 (fr)
BE (1) BE351241A (fr)
DE (1) DE504677C (fr)
FR (1) FR654088A (fr)
GB (1) GB293520A (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE760324C (de) * 1941-07-19 1953-01-26 Franz Berghoff Verfahren zum Ausbau der Abbaustreben im Untertagebetrieb unter Benutzung von durch Stempeln getragenen Drahtseilen
DE1085836B (de) * 1955-04-14 1960-07-28 Aug Kloenne Fa Kappe fuer den Ausbau unter Tage
DE1104471B (de) * 1956-11-05 1961-04-13 Dipl Berging Oskar Eckert Seilanker

Also Published As

Publication number Publication date
DE504677C (de) 1930-08-14
FR654088A (fr) 1929-04-02
BE351241A (fr) 1928-06-30
GB293520A (en) 1928-07-12

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