FR2181878B1 - - Google Patents

Info

Publication number
FR2181878B1
FR2181878B1 FR7313326A FR7313326A FR2181878B1 FR 2181878 B1 FR2181878 B1 FR 2181878B1 FR 7313326 A FR7313326 A FR 7313326A FR 7313326 A FR7313326 A FR 7313326A FR 2181878 B1 FR2181878 B1 FR 2181878B1
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
FR7313326A
Other languages
French (fr)
Other versions
FR2181878A1 (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.)
Kloeckner Werke AG
Original Assignee
Kloeckner Werke AG
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 Kloeckner Werke AG filed Critical Kloeckner Werke AG
Publication of FR2181878A1 publication Critical patent/FR2181878A1/fr
Application granted granted Critical
Publication of FR2181878B1 publication Critical patent/FR2181878B1/fr
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/08—Guiding the machine
    • E21C35/12—Guiding the machine along a conveyor for the cut material
    • E21C35/14—Equipment for pressing the conveyor towards the working face
    • 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
    • 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
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086—Armoured conveyors 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)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Jigging Conveyors (AREA)
FR7313326A 1972-04-26 1973-04-12 Expired FR2181878B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2220452A DE2220452C3 (en) 1972-04-26 1972-04-26 Rear cylinder for face conveyors with a built-in metering device to limit the stroke

Publications (2)

Publication Number Publication Date
FR2181878A1 FR2181878A1 (en) 1973-12-07
FR2181878B1 true FR2181878B1 (en) 1975-12-26

Family

ID=5843326

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7313326A Expired FR2181878B1 (en) 1972-04-26 1973-04-12

Country Status (4)

Country Link
US (1) US3857246A (en)
DE (1) DE2220452C3 (en)
FR (1) FR2181878B1 (en)
GB (1) GB1377455A (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2807431C2 (en) * 1978-02-22 1986-10-23 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Control device for the consumers of a support frame in underground mine support that can be acted upon by a hydraulic working medium
DE2924380A1 (en) * 1979-06-16 1981-01-08 Gewerk Eisenhuette Westfalia LIFT LIMITING DEVICE FOR PISTON PISTON GEARBOXES, ESPECIALLY FOR SCREW AND BACK CYLINDER FOR THE BACK OF A CONVEYOR AND / OR A SCREW EXTENSION IN MINING UNDERGROUND OPERATIONS
DE8318615U1 (en) * 1983-06-28 1983-11-03 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel ALIGNMENT CYLINDER FOR SHIELD REMOVAL
AT406600B (en) * 1998-05-29 2000-06-26 Hygrama Ag WORK CYLINDER
CN113195870B (en) 2018-10-29 2024-04-23 久益环球地下采矿有限责任公司 Top plate support connector

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2163982A (en) * 1935-03-11 1939-06-27 Mereier Jean Fluid-operated jack
US2186266A (en) * 1936-08-20 1940-01-09 Onions John Henry Shock absorber for aircraft
US2623502A (en) * 1947-06-12 1952-12-30 Fairey Aviat Co Ltd Aircraft control system with fluid operated holding device
US2789712A (en) * 1953-07-31 1957-04-23 Clark Equipment Co Positioning system for tractor shoveles and the like

Also Published As

Publication number Publication date
DE2220452C3 (en) 1980-03-20
DE2220452A1 (en) 1973-11-15
DE2220452B2 (en) 1979-07-19
GB1377455A (en) 1974-12-18
FR2181878A1 (en) 1973-12-07
US3857246A (en) 1974-12-31

Similar Documents

Publication Publication Date Title
FR2181878B1 (en)
JPS5725823B2 (en)
DE2264239A1 (en)
JPS4911099A (en)
JPS492879U (en)
JPS4965138A (en)
JPS4993344A (en)
JPS4912490U (en)
JPS4978076A (en)
CH561428A5 (en)
CH546010A (en)
CH572651A5 (en)
CH572351A5 (en)
CH571764A5 (en)
CH570503A5 (en)
CH570330A5 (en)
CH570176A5 (en)
CH566825A (en)
CH565978A5 (en)
CH564416A5 (en)
SE7114970L (en)
CH563097A5 (en)
BG18106A1 (en)
CH560966A5 (en)
CH573333A5 (en)

Legal Events

Date Code Title Description
ST Notification of lapse