FR1562647A - - Google Patents

Info

Publication number
FR1562647A
FR1562647A FR1562647DA FR1562647A FR 1562647 A FR1562647 A FR 1562647A FR 1562647D A FR1562647D A FR 1562647DA FR 1562647 A FR1562647 A FR 1562647A
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 FR1562647A publication Critical patent/FR1562647A/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/10—Anchorings for conveyors
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B15/00—Fluid-actuated devices for displacing a member from one position to another; Gearing associated therewith
    • F15B15/08—Characterised by the construction of the motor unit
    • F15B15/14—Characterised by the construction of the motor unit of the straight-cylinder type
    • F15B15/1409—Characterised by the construction of the motor unit of the straight-cylinder type with two or more independently movable working pistons

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Pit Excavations, Shoring, Fill Or Stabilisation Of Slopes (AREA)
FR1562647D 1967-10-21 1968-05-08 Expired FR1562647A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG51549A DE1290109B (en) 1967-10-21 1967-10-21 Stamp for expansion or bracing in the face / route transition

Publications (1)

Publication Number Publication Date
FR1562647A true FR1562647A (en) 1969-04-04

Family

ID=7129821

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1562647D Expired FR1562647A (en) 1967-10-21 1968-05-08

Country Status (2)

Country Link
DE (1) DE1290109B (en)
FR (1) FR1562647A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408031A1 (en) * 1977-11-04 1979-06-01 Gewerk Eisenhuette Westfalia CONTROL DEVICE FOR HYDRAULIC SUPPORT IN THE FORM OF STREAKS OR SIMILAR ASSEMBLY
FR2455673A2 (en) * 1979-04-12 1980-11-28 Gewerk Eisenhuette Westfalia CONTROL DEVICE FOR HYDRAULIC SUPPORT IN THE FORM OF STANDARDS OR THE LIKE
BE1000311A4 (en) * 1987-02-25 1988-10-18 Berghe Rene Van Den Method and apparatus for the production of baked under pressure and expanded food products.
WO1995013160A1 (en) * 1993-11-10 1995-05-18 British Nuclear Fuels Plc Device for cutting pipes or tubes
EP1364858A1 (en) * 2002-05-25 2003-11-26 FAUN GmbH Rear axle for a vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3026837C2 (en) * 1980-07-16 1983-09-08 Klöckner-Werke AG, 4100 Duisburg Flexible route expansion for mine routes or the like.
CN105179374B (en) * 2014-11-28 2017-06-20 徐州重型机械有限公司 Single-cylinder bolt device, cylinder head assembly and crane

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2795935A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Walking roof support
US2795934A (en) * 1952-09-30 1957-06-18 Joy Mfg Co Rotating hydraulic roof supporting jacks
BE632029A (en) * 1962-05-12

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2408031A1 (en) * 1977-11-04 1979-06-01 Gewerk Eisenhuette Westfalia CONTROL DEVICE FOR HYDRAULIC SUPPORT IN THE FORM OF STREAKS OR SIMILAR ASSEMBLY
FR2455673A2 (en) * 1979-04-12 1980-11-28 Gewerk Eisenhuette Westfalia CONTROL DEVICE FOR HYDRAULIC SUPPORT IN THE FORM OF STANDARDS OR THE LIKE
BE1000311A4 (en) * 1987-02-25 1988-10-18 Berghe Rene Van Den Method and apparatus for the production of baked under pressure and expanded food products.
WO1995013160A1 (en) * 1993-11-10 1995-05-18 British Nuclear Fuels Plc Device for cutting pipes or tubes
EP1364858A1 (en) * 2002-05-25 2003-11-26 FAUN GmbH Rear axle for a vehicle

Also Published As

Publication number Publication date
DE1290109B (en) 1969-03-06

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Legal Events

Date Code Title Description
ST Notification of lapse