FR1204337A - étançon hydraulique utilisable notamment dans les mines - Google Patents

étançon hydraulique utilisable notamment dans les mines

Info

Publication number
FR1204337A
FR1204337A FR1204337DA FR1204337A FR 1204337 A FR1204337 A FR 1204337A FR 1204337D A FR1204337D A FR 1204337DA FR 1204337 A FR1204337 A FR 1204337A
Authority
FR
France
Prior art keywords
mines
hydraulic prop
prop suitable
hydraulic
prop
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
Other languages
English (en)
French (fr)
Inventor
Wilhelm Steinkopf
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 FR1204337A publication Critical patent/FR1204337A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, pneumatic, or hydraulic-pneumatic props
    • E21D15/45—Hydraulic, pneumatic, or hydraulic-pneumatic props having closed fluid system, e.g. with built-in pumps or accumulators
    • 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
    • E21D23/0073—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 with advancing shifting devices connected therewith

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)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Fluid-Damping Devices (AREA)
FR1204337D 1957-09-16 1957-12-20 étançon hydraulique utilisable notamment dans les mines Expired FR1204337A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEST012957 1957-09-16

Publications (1)

Publication Number Publication Date
FR1204337A true FR1204337A (fr) 1960-01-25

Family

ID=7455886

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1204337D Expired FR1204337A (fr) 1957-09-16 1957-12-20 étançon hydraulique utilisable notamment dans les mines

Country Status (3)

Country Link
BE (1) BE563397A (enrdf_load_stackoverflow)
DE (1) DE1408064A1 (enrdf_load_stackoverflow)
FR (1) FR1204337A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4140317C2 (de) * 1991-12-06 1995-03-23 Vos Richard Grubenausbau Gmbh Ventilanordnung für den Einzelstempelausbau im untertägigen Berg- und Tunnelbau
DE4323462C2 (de) * 1993-07-14 1995-05-04 Vos Richard Grubenausbau Gmbh Ausbaustempel für den Untertageeinsatz mit integriertem Druckbegrenzungsventil

Also Published As

Publication number Publication date
DE1408064A1 (de) 1968-12-12
BE563397A (enrdf_load_stackoverflow) 1958-06-20

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