FR1303511A - Système de rallonges télescopiques à portance hydraulique pour éléments de soutènement en taille - Google Patents

Système de rallonges télescopiques à portance hydraulique pour éléments de soutènement en taille

Info

Publication number
FR1303511A
FR1303511A FR868738A FR868738A FR1303511A FR 1303511 A FR1303511 A FR 1303511A FR 868738 A FR868738 A FR 868738A FR 868738 A FR868738 A FR 868738A FR 1303511 A FR1303511 A FR 1303511A
Authority
FR
France
Prior art keywords
size
supporting elements
hydraulic lift
extension system
telescopic extension
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
Application number
FR868738A
Other languages
English (en)
Inventor
Michel Meriaux
Michel Lablache-Combier
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.)
MINES DOMANIALES DE POTASSE
Original Assignee
MINES DOMANIALES DE POTASSE
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 MINES DOMANIALES DE POTASSE filed Critical MINES DOMANIALES DE POTASSE
Priority to FR868738A priority Critical patent/FR1303511A/fr
Priority to BE618721A priority patent/BE618721A/fr
Priority to LU41944D priority patent/LU41944A1/xx
Priority to GB25992/62A priority patent/GB981568A/en
Priority to US211344A priority patent/US3240021A/en
Application granted granted Critical
Publication of FR1303511A publication Critical patent/FR1303511A/fr
Priority to OA50478A priority patent/OA00401A/fr
Expired legal-status Critical Current

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
    • E21D17/082—Cap joints for obtaining a coal-face free of pit-props of sliding type
    • 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
    • E21D17/0206—Hydraulically operated extension devices
    • 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
    • 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
    • E21D23/063—Retractable cantilever extensions therefor

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)
  • Lining And Supports For Tunnels (AREA)
  • Safety Valves (AREA)
FR868738A 1961-07-22 1961-07-22 Système de rallonges télescopiques à portance hydraulique pour éléments de soutènement en taille Expired FR1303511A (fr)

Priority Applications (6)

Application Number Priority Date Filing Date Title
FR868738A FR1303511A (fr) 1961-07-22 1961-07-22 Système de rallonges télescopiques à portance hydraulique pour éléments de soutènement en taille
BE618721A BE618721A (fr) 1961-07-22 1962-06-08 Système de rallonges télescopiques à portance hydraulique pour éléments de soutènement en taille
LU41944D LU41944A1 (fr) 1961-07-22 1962-06-26
GB25992/62A GB981568A (en) 1961-07-22 1962-07-06 Improvements in or relating to mine roof supporting structure
US211344A US3240021A (en) 1961-07-22 1962-07-20 Mine roof supporting structure
OA50478A OA00401A (fr) 1961-07-22 1964-10-23 Système de rallonges télescopiques à portance hydraulique pour éléments de soutènement en taille.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR868738A FR1303511A (fr) 1961-07-22 1961-07-22 Système de rallonges télescopiques à portance hydraulique pour éléments de soutènement en taille

Publications (1)

Publication Number Publication Date
FR1303511A true FR1303511A (fr) 1962-09-14

Family

ID=8759869

Family Applications (1)

Application Number Title Priority Date Filing Date
FR868738A Expired FR1303511A (fr) 1961-07-22 1961-07-22 Système de rallonges télescopiques à portance hydraulique pour éléments de soutènement en taille

Country Status (6)

Country Link
US (1) US3240021A (fr)
BE (1) BE618721A (fr)
FR (1) FR1303511A (fr)
GB (1) GB981568A (fr)
LU (1) LU41944A1 (fr)
OA (1) OA00401A (fr)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1290506B (de) * 1962-11-10 1969-03-13 Groetschel Karl Maria Wanderausbauaggregat
LU44403A1 (fr) * 1963-09-09 1963-11-09
GB1045353A (en) * 1964-02-12 1966-10-12 Gullick Ltd Improvements in or relating to mine roof supports
HU167711B (fr) * 1973-12-07 1975-12-25
GB1583647A (en) * 1976-09-24 1981-01-28 Huwood Ltd Mine roof supports
US4480946A (en) * 1981-10-19 1984-11-06 Kelley Jay H Gob canopy for a mine roof support
DE3221486A1 (de) * 1982-06-07 1983-12-08 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Vorpfaendeinrichtung fuer hydraulische schreitausbaugestelle
GB2123885B (en) * 1982-07-09 1986-02-19 Dowty Mining Equipment Ltd Roof support for use in mines
US4483644A (en) * 1982-09-15 1984-11-20 Johnson Thomas P Cantilevered mobile marine rig with hydraulic load equalizer
US4565263A (en) * 1985-06-10 1986-01-21 Southworth Ted J Sawhorse with extendible and contractible leg assemblies
GB2196371B (en) * 1986-10-15 1990-05-09 Gullick Dobson Ltd Mine roof supports
CN102305090A (zh) * 2011-09-29 2012-01-04 郑州四维机电设备制造有限公司 伸缩梁机构

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1182188B (de) * 1956-06-05 1964-11-26 Hoesch Ag Vorpfaendeinrichtung
FR1192849A (fr) * 1957-04-20 1959-10-28 Hoesch Werke Ag Allonge de soutènement
GB881364A (en) * 1959-01-16 1961-11-01 Gullick Ltd Improvements in or relating to hydraulic ram devices, particularly applicable to mine roof supports
DE1077618B (de) * 1959-04-16 1960-03-17 Hermann Schwarz Kommanditgesel Nachgiebige Streckenstuetze
US3127748A (en) * 1960-05-10 1964-04-07 Gullick Ltd Mine roof supports

Also Published As

Publication number Publication date
GB981568A (en) 1965-01-27
US3240021A (en) 1966-03-15
OA00401A (fr) 1966-05-15
LU41944A1 (fr) 1962-08-27
BE618721A (fr) 1962-10-01

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