FR2185749A1 - - Google Patents

Info

Publication number
FR2185749A1
FR2185749A1 FR7319004A FR7319004A FR2185749A1 FR 2185749 A1 FR2185749 A1 FR 2185749A1 FR 7319004 A FR7319004 A FR 7319004A FR 7319004 A FR7319004 A FR 7319004A FR 2185749 A1 FR2185749 A1 FR 2185749A1
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.)
Granted
Application number
FR7319004A
Other languages
French (fr)
Other versions
FR2185749B3 (en
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.)
Bochumer Eisenhuette Heintzmann GmbH and Co KG
Original Assignee
Bochumer Eisenhuette Heintzmann GmbH and Co KG
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
Priority claimed from DE19722225196 external-priority patent/DE2225196B2/en
Priority claimed from DE19722263481 external-priority patent/DE2263481C2/en
Application filed by Bochumer Eisenhuette Heintzmann GmbH and Co KG filed Critical Bochumer Eisenhuette Heintzmann GmbH and Co KG
Publication of FR2185749A1 publication Critical patent/FR2185749A1/fr
Application granted granted Critical
Publication of FR2185749B3 publication Critical patent/FR2185749B3/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
    • E21D23/26—Hydraulic or pneumatic control

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)
  • Fluid-Pressure Circuits (AREA)
FR7319004A 1972-05-24 1973-05-24 Expired FR2185749B3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19722225196 DE2225196B2 (en) 1972-05-24 1972-05-24 Control unit for the progressive pit construction
DE19722263481 DE2263481C2 (en) 1972-12-27 1972-12-27 Control unit for the progressive pit construction

Publications (2)

Publication Number Publication Date
FR2185749A1 true FR2185749A1 (en) 1974-01-04
FR2185749B3 FR2185749B3 (en) 1976-05-14

Family

ID=25763306

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7319004A Expired FR2185749B3 (en) 1972-05-24 1973-05-24

Country Status (2)

Country Link
FR (1) FR2185749B3 (en)
GB (1) GB1433631A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2095425B (en) * 1981-02-25 1984-06-27 Dobson Park Ind Mine roof support control systems

Also Published As

Publication number Publication date
FR2185749B3 (en) 1976-05-14
GB1433631A (en) 1976-04-28

Similar Documents

Publication Publication Date Title
JPS5429603B2 (en)
FR2185749B3 (en)
JPS538372Y2 (en)
JPS5346884Y2 (en)
BR7310191D0 (en)
CH561886A5 (en)
CH562984A5 (en)
BG18291A1 (en)
BG18384A1 (en)
BG19416A1 (en)
BG20135A3 (en)
BG20811A3 (en)
CH583557A5 (en)
CH1527273A4 (en)
CH559868A5 (en)
CH562142A5 (en)
CH560475A5 (en)
CH560638A5 (en)
CH560960A5 (en)
CH560972A5 (en)
CH560978A5 (en)
CH561027A5 (en)
CH561468A5 (en)
CH581640A5 (en)
CH562066A5 (en)

Legal Events

Date Code Title Description
ST Notification of lapse