DE3721046A1 - Strebfirststuetzen - Google Patents

Strebfirststuetzen

Info

Publication number
DE3721046A1
DE3721046A1 DE19873721046 DE3721046A DE3721046A1 DE 3721046 A1 DE3721046 A1 DE 3721046A1 DE 19873721046 DE19873721046 DE 19873721046 DE 3721046 A DE3721046 A DE 3721046A DE 3721046 A1 DE3721046 A1 DE 3721046A1
Authority
DE
Germany
Prior art keywords
head rail
arrangement according
parts
rail arrangement
ridge
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.)
Ceased
Application number
DE19873721046
Other languages
German (de)
English (en)
Inventor
Kenneth Davidd Prescott
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.)
Gullick Dobson Ltd
Original Assignee
Gullick Dobson Ltd
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 Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Publication of DE3721046A1 publication Critical patent/DE3721046A1/de
Ceased legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • E21D23/0043—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member and supported by two or more rows of struts parallel to the working face
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement

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)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
DE19873721046 1986-06-26 1987-06-25 Strebfirststuetzen Ceased DE3721046A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB8615666A GB2192021B (en) 1986-06-26 1986-06-26 A roof engaging structure for a mine roof support

Publications (1)

Publication Number Publication Date
DE3721046A1 true DE3721046A1 (de) 1988-01-07

Family

ID=10600159

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19873721046 Ceased DE3721046A1 (de) 1986-06-26 1987-06-25 Strebfirststuetzen

Country Status (6)

Country Link
US (1) US4784532A (instruction)
AU (1) AU7472587A (instruction)
DE (1) DE3721046A1 (instruction)
GB (1) GB2192021B (instruction)
IN (1) IN169709B (instruction)
ZA (1) ZA874566B (instruction)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3630580A1 (de) * 1986-09-09 1988-03-10 Gewerk Eisenhuette Westfalia Lagerung des kappenanstellzylinders bei einem schildausbaugestell
GB2214963B (en) * 1988-02-13 1992-05-06 Gullick Dobson Ltd Mine roof supports
GB8803974D0 (en) * 1988-02-20 1988-03-23 Fletcher Sutcliffe Wild Ltd Hydraulic pump
HU208043B (en) * 1989-06-02 1993-07-28 Gyoergy Szentai Apparatus for securing mine working place
PL175227B1 (pl) * 1995-01-23 1998-11-30 Maszyn Glinik Sa Fab Obudowa górnicza
DE102008029014B3 (de) * 2008-06-20 2010-04-15 Bucyrus Dbt Europe Gmbh Schildausbaugestell für den untertägigen Bergbau und Flächenstützelement hierfür
AU2019346421B2 (en) 2018-09-24 2025-08-21 Joy Global Underground Mining Llc Roof support including extendable links

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2300767B2 (de) * 1973-01-08 1974-12-12 Podmoskowny Nautschno-Issledowatelskij I Projektno-Konstruktorskij Ugolny Institut, Nowomoskowsk (Sowjetunion) Vorpfändvorrichtung für ein hydraulisches Grubenausbaugestell
DE2104935B2 (de) * 1971-02-03 1979-06-13 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Vorpfändkappenanordnung
US4492495A (en) * 1982-07-09 1985-01-08 Dowty Mining Equipment Limited Roof support for use in mines

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1127299B (de) * 1961-09-06 1962-04-12 Gewerk Eisenhuette Westfalia Schreitendes hydraulisches Ausbaugestell fuer bergmaennische Gewinnungsbetriebe
GB1139988A (en) * 1966-08-27 1969-01-15 Gewerk Eisenhuette Westfalia Mine roof support assemblies
DE2105795A1 (de) * 1971-02-08 1972-10-05 Hermann Hemscheidt, Maschinenfabrik, 5600 Wuppertal Gelenkverbindung für Kappen von hydraulischem Schreitausbau
GB1408429A (en) * 1972-07-14 1975-10-01 Mastabar Mining Equipment Co L Mine roof supports
GB1364221A (en) * 1973-01-18 1974-08-21 Podmoskovny Ni Pk Ugolny Inst Hydraulically controlled roof support
GB1429799A (en) * 1973-01-26 1976-03-24 Gullick Dobson Ltd Mine roof supports
GB1414257A (en) * 1973-02-12 1975-11-19 Taiheiyo Coal Mining Co Ltd Gate self-advancing support system
SU723173A1 (ru) * 1976-09-27 1980-03-25 Государственный Научно-Исследовательский Проектно-Конструкторский И Проектный Угольный Институт Секци механизированной крепи
DE2646563C3 (de) * 1976-10-15 1979-08-09 Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum Ausbau für den Saumbereich eines Strebs
DE2745358C3 (de) * 1977-10-08 1980-05-22 Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum Hilfsausbau für den Übergang Streb-Strecke
DE3019697C2 (de) * 1980-05-23 1982-09-23 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Vorpfändeinrichtung für hydraulische Schreitausbaugestelle
GB2082236B (en) * 1980-08-06 1984-03-07 Dowty Mining Equipment Ltd Mine roof support with cantilever extension on roof plate
GB2115048B (en) * 1982-02-02 1985-08-29 Dobson Park Ind Mine roof supports
GB2143271B (en) * 1983-07-12 1986-08-06 Dowty Mining Equipment Ltd Mine roof support with tilting cantilever to canopy

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2104935B2 (de) * 1971-02-03 1979-06-13 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Vorpfändkappenanordnung
DE2300767B2 (de) * 1973-01-08 1974-12-12 Podmoskowny Nautschno-Issledowatelskij I Projektno-Konstruktorskij Ugolny Institut, Nowomoskowsk (Sowjetunion) Vorpfändvorrichtung für ein hydraulisches Grubenausbaugestell
US4492495A (en) * 1982-07-09 1985-01-08 Dowty Mining Equipment Limited Roof support for use in mines

Also Published As

Publication number Publication date
ZA874566B (en) 1987-12-30
IN169709B (instruction) 1991-12-14
AU7472587A (en) 1988-01-07
US4784532A (en) 1988-11-15
GB2192021B (en) 1990-03-21
GB8615666D0 (en) 1986-07-30
GB2192021A (en) 1987-12-31

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
8131 Rejection