FR1562062A - - Google Patents

Info

Publication number
FR1562062A
FR1562062A FR1562062DA FR1562062A FR 1562062 A FR1562062 A FR 1562062A FR 1562062D A FR1562062D A FR 1562062DA FR 1562062 A FR1562062 A FR 1562062A
Authority
FR
France
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
Other languages
French (fr)
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 filed Critical
Application granted granted Critical
Publication of FR1562062A publication Critical patent/FR1562062A/fr
Expired 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
    • E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
    • 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0069—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices without essential advancing shifting devices

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)
  • Actuator (AREA)
  • Fluid-Driven Valves (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
FR1562062D 1967-02-02 1968-01-23 Expired FR1562062A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEB0091001 1967-02-02
DEB0091168 1967-02-14

Publications (1)

Publication Number Publication Date
FR1562062A true FR1562062A (en) 1969-04-04

Family

ID=25968280

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1562062D Expired FR1562062A (en) 1967-02-02 1968-01-23

Country Status (3)

Country Link
US (1) US3478522A (en)
FR (1) FR1562062A (en)
GB (2) GB1221528A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237449A2 (en) * 1986-03-13 1987-09-16 Societe D'exploitation De Brevets Pour L'industrie Et La Marine (Sebim) Apparatus for supplying fluid to a hydraulic, pneumatic or hydropneumatic installation

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1287096A (en) * 1968-10-17 1972-08-31 Karl Maria Groetschel Improvements relating to advancing roof supports for mine workings
FR2056580A6 (en) * 1969-08-06 1971-05-14 Bergwerksverband Gmbh
SU797601A3 (en) * 1970-08-04 1981-01-15 Геверкшафт Эйзенхютте Вестфалия (Фирма) Hydraulic device for control of displaceable support sections in mines
DE3100093A1 (en) * 1981-01-03 1982-08-05 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen DEVICE FOR LIMITING THE REMOVAL RESISTANCE OF A HYDRAULIC REMOVAL PLATE
DE3000237A1 (en) * 1980-01-05 1981-07-09 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen DEVICE FOR SECURING THE CAP TEMPERATURE CYLINDERS A SHIELD REMOVAL RACK AGAINST EXTENSION
DE3141040C1 (en) * 1981-10-15 1983-03-31 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Hydraulic expansion frame
GB2241527A (en) * 1990-02-13 1991-09-04 Gullick Dobson Ltd Mining apparatus and method
CN109736868B (en) * 2018-12-11 2020-07-28 中国矿业大学 Fully mechanized mining face hydraulic support push rod pose sensing device, fully mechanized mining face hydraulic support push rod mechanism and fully mechanized mining face hydraulic support push rod method

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3383865A (en) * 1965-12-03 1968-05-21 Mastabar Mining Equip Co Ltd Mine roof supports

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0237449A2 (en) * 1986-03-13 1987-09-16 Societe D'exploitation De Brevets Pour L'industrie Et La Marine (Sebim) Apparatus for supplying fluid to a hydraulic, pneumatic or hydropneumatic installation
FR2595770A1 (en) * 1986-03-13 1987-09-18 Brev Ind Marine Exploit DEVICE FOR SUPPLYING THE FLUID OF A HYDRAULIC, PNEUMATIC OR HYDRO PNEUMATIC INSTALLATION
EP0237449A3 (en) * 1986-03-13 1987-12-23 Sebim Apparatus for supplying fluid to a hydraulic, pneumatic or hydropneumatic installation

Also Published As

Publication number Publication date
GB1221528A (en) 1971-02-03
GB1221529A (en) 1971-02-03
US3478522A (en) 1969-11-18

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Legal Events

Date Code Title Description
ST Notification of lapse