FR2470852A1 - Plaque pour boulon de soutenement de toit de mine - Google Patents

Plaque pour boulon de soutenement de toit de mine

Info

Publication number
FR2470852A1
FR2470852A1 FR8025193A FR8025193A FR2470852A1 FR 2470852 A1 FR2470852 A1 FR 2470852A1 FR 8025193 A FR8025193 A FR 8025193A FR 8025193 A FR8025193 A FR 8025193A FR 2470852 A1 FR2470852 A1 FR 2470852A1
Authority
FR
France
Prior art keywords
plate
rectangular
bolt
roof support
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.)
Granted
Application number
FR8025193A
Other languages
English (en)
French (fr)
Other versions
FR2470852B1 (OSRAM
Inventor
Satya Prakash Arya
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.)
Ingersoll Rand Co
Original Assignee
Ingersoll Rand Co
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 Ingersoll Rand Co filed Critical Ingersoll Rand Co
Publication of FR2470852A1 publication Critical patent/FR2470852A1/fr
Application granted granted Critical
Publication of FR2470852B1 publication Critical patent/FR2470852B1/fr
Granted legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D21/00—Anchoring-bolts for roof, floor in galleries or longwall working, or shaft-lining protection
    • E21D21/0086—Bearing plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Roof Covering Using Slabs Or Stiff Sheets (AREA)
  • Rock Bolts (AREA)
FR8025193A 1979-12-03 1980-11-27 Plaque pour boulon de soutenement de toit de mine Granted FR2470852A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US9983679A 1979-12-03 1979-12-03

Publications (2)

Publication Number Publication Date
FR2470852A1 true FR2470852A1 (fr) 1981-06-12
FR2470852B1 FR2470852B1 (OSRAM) 1984-11-23

Family

ID=22276846

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8025193A Granted FR2470852A1 (fr) 1979-12-03 1980-11-27 Plaque pour boulon de soutenement de toit de mine

Country Status (5)

Country Link
JP (1) JPS5681798A (OSRAM)
AU (1) AU537481B2 (OSRAM)
CA (1) CA1161675A (OSRAM)
FR (1) FR2470852A1 (OSRAM)
ZA (1) ZA804722B (OSRAM)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0922611A (ja) * 1994-12-21 1997-01-21 Mitsuru Kusanagi 山桜の樹皮を使用した照明器具の製造方法
US20060285929A1 (en) * 2005-06-16 2006-12-21 Valgora George G Bearing plate having tab
JP6887358B2 (ja) * 2017-10-02 2021-06-16 日鉄建材株式会社 土砂構造物の受圧部材、土砂構造物の補強構造、及び土砂構造物の補強方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2748594A (en) * 1952-11-04 1956-06-05 Lukens Steel Co Roof bolt
US4112693A (en) * 1976-09-30 1978-09-12 Kaiser Steel Corporation Mine roof support plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2748594A (en) * 1952-11-04 1956-06-05 Lukens Steel Co Roof bolt
US4112693A (en) * 1976-09-30 1978-09-12 Kaiser Steel Corporation Mine roof support plate

Also Published As

Publication number Publication date
AU6105180A (en) 1981-06-11
CA1161675A (en) 1984-02-07
AU537481B2 (en) 1984-06-28
JPS5681798A (en) 1981-07-04
ZA804722B (en) 1981-07-29
FR2470852B1 (OSRAM) 1984-11-23

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