FR1196543A - Dispositif de soutènement du toit pour exploitations minières - Google Patents

Dispositif de soutènement du toit pour exploitations minières

Info

Publication number
FR1196543A
FR1196543A FR1196543DA FR1196543A FR 1196543 A FR1196543 A FR 1196543A FR 1196543D A FR1196543D A FR 1196543DA FR 1196543 A FR1196543 A FR 1196543A
Authority
FR
France
Prior art keywords
support system
roof support
mining operations
mining
operations
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)
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.)
Mining Engineering Co Ltd MECO
Original Assignee
Mining Engineering Co Ltd MECO
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 Mining Engineering Co Ltd MECO filed Critical Mining Engineering Co Ltd MECO
Application granted granted Critical
Publication of FR1196543A publication Critical patent/FR1196543A/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
    • 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
    • E21D15/58—Devices for setting props or chocks
    • E21D15/585—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important
    • E21D15/586—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded
    • E21D15/587—Devices for setting props or chocks by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important the props being pre-loaded by means of power accumulators to be pre-charged by rock pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
FR1196543D 1957-04-13 1958-06-02 Dispositif de soutènement du toit pour exploitations minières Expired FR1196543A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1215157A GB835142A (en) 1957-04-13 1957-04-13 Improvements relating to roof supports for mine workings

Publications (1)

Publication Number Publication Date
FR1196543A true FR1196543A (fr) 1959-11-24

Family

ID=9999281

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1196543D Expired FR1196543A (fr) 1957-04-13 1958-06-02 Dispositif de soutènement du toit pour exploitations minières

Country Status (4)

Country Link
BE (1) BE568355A (fr)
FR (1) FR1196543A (fr)
GB (1) GB835142A (fr)
NL (1) NL112444C (fr)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3202061A (en) * 1962-07-09 1965-08-24 Lowell B Johnston Fluid actuated displacement and positioning system
US4572579A (en) * 1983-12-19 1986-02-25 Ken Saito Dump apparatus
NL8900557A (nl) 1989-03-07 1990-10-01 Rolflex Oost Nederland Beweegbare laadbrug.
AU665605B2 (en) * 1991-12-26 1996-01-11 Kelley Company Inc. Dock leveler incorporating an inflatable bag
US6460212B2 (en) 1993-10-04 2002-10-08 Kelley Company, Inc. Dock leveler having an inflatable member
US5996156A (en) * 1995-01-31 1999-12-07 Kelley Company, Inc. Dock leveler raised by deflating an inflatable member
US5600859A (en) * 1995-01-31 1997-02-11 Kelley Company, Inc. Dock leveler in which the ramp is raised and lowered using an inflatable member and method of use
US5802650A (en) * 1993-10-04 1998-09-08 Kelley Company, Inc. Dock leveler having an inflatable member
US5446938A (en) * 1993-10-04 1995-09-05 Kelley Company Inc. Bag construction for a dockleveler
US5481774A (en) * 1993-10-04 1996-01-09 Kelley Company, Inc. Support mechanism for a dockleveler lift bag
US5450643A (en) * 1993-10-04 1995-09-19 Kelley Company Inc. Edge-of-dock leveler
US6711774B2 (en) 1993-10-04 2004-03-30 Kelley Company, Inc. Dock leveler having an inflatable member
US5471693A (en) * 1993-10-04 1995-12-05 Kelley Company Inc. Support and attachment mechanism for a dockleveler lift bag
US5522108A (en) * 1995-01-31 1996-06-04 Kelley Company, Inc. Dock leveler having a ramp movable to a raised position by inflation of an inflatable member, with a filler for occupying volume within the inflatable member
US5475888A (en) * 1995-01-31 1995-12-19 Kelley Company, Inc. Lip lifting mechanism for a dock leveler

Also Published As

Publication number Publication date
BE568355A (fr) 1958-06-30
GB835142A (en) 1960-05-18
NL112444C (fr) 1966-02-15

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