GB8717324D0 - Adjustment cylinder - Google Patents

Adjustment cylinder

Info

Publication number
GB8717324D0
GB8717324D0 GB878717324A GB8717324A GB8717324D0 GB 8717324 D0 GB8717324 D0 GB 8717324D0 GB 878717324 A GB878717324 A GB 878717324A GB 8717324 A GB8717324 A GB 8717324A GB 8717324 D0 GB8717324 D0 GB 8717324D0
Authority
GB
United Kingdom
Prior art keywords
adjustment cylinder
adjustment
cylinder
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.)
Granted
Application number
GB878717324A
Other versions
GB2193745B (en
GB2193745A (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 Becorit GmbH
Original Assignee
Kloeckner Becorit GmbH
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 Becorit GmbH filed Critical Kloeckner Becorit GmbH
Publication of GB8717324D0 publication Critical patent/GB8717324D0/en
Publication of GB2193745A publication Critical patent/GB2193745A/en
Application granted granted Critical
Publication of GB2193745B publication Critical patent/GB2193745B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement
    • E21D23/066—Pivoted cantilever extensions therefor

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Filling Or Emptying Of Bunkers, Hoppers, And Tanks (AREA)
  • Supply Devices, Intensifiers, Converters, And Telemotors (AREA)
GB8717324A 1986-08-08 1987-07-22 A coalface support structure having an adjustment cylinder Expired - Fee Related GB2193745B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19863626951 DE3626951C1 (en) 1986-08-08 1986-08-08 Pitch cylinder

Publications (3)

Publication Number Publication Date
GB8717324D0 true GB8717324D0 (en) 1987-08-26
GB2193745A GB2193745A (en) 1988-02-17
GB2193745B GB2193745B (en) 1990-05-23

Family

ID=6306981

Family Applications (1)

Application Number Title Priority Date Filing Date
GB8717324A Expired - Fee Related GB2193745B (en) 1986-08-08 1987-07-22 A coalface support structure having an adjustment cylinder

Country Status (2)

Country Link
DE (1) DE3626951C1 (en)
GB (1) GB2193745B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4294194T1 (en) * 1991-11-29 1993-11-18 Motorola Inc Device for accepting an intelligent card
DE10328286B4 (en) 2003-06-23 2015-05-13 Caterpillar Global Mining Europe Gmbh Hydraulic shield removal
DE112008002215A5 (en) * 2007-08-23 2010-06-17 Tiefenbach Control Systems Gmbh Extension frame for longwall mining in mines

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2306806C3 (en) * 1973-02-12 1975-12-18 Taiheiyo Coal Mining Co., Ltd., Tokio Device for supporting the coal face arranged on a longwall frame

Also Published As

Publication number Publication date
GB2193745B (en) 1990-05-23
DE3626951C1 (en) 1987-09-24
GB2193745A (en) 1988-02-17

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19950722