GB2202569B - Roof support - Google Patents

Roof support

Info

Publication number
GB2202569B
GB2202569B GB8807047A GB8807047A GB2202569B GB 2202569 B GB2202569 B GB 2202569B GB 8807047 A GB8807047 A GB 8807047A GB 8807047 A GB8807047 A GB 8807047A GB 2202569 B GB2202569 B GB 2202569B
Authority
GB
United Kingdom
Prior art keywords
roof support
roof
support
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 - Fee Related
Application number
GB8807047A
Other versions
GB8807047D0 (en
GB2202569A (en
Inventor
Peter Degg
Richard Arthur Naylor
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.)
DOWTY HUCKNALL Ltd
Original Assignee
DOWTY HUCKNALL Ltd
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 DOWTY HUCKNALL Ltd filed Critical DOWTY HUCKNALL Ltd
Publication of GB8807047D0 publication Critical patent/GB8807047D0/en
Publication of GB2202569A publication Critical patent/GB2202569A/en
Application granted granted Critical
Publication of GB2202569B publication Critical patent/GB2202569B/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

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)
  • Tents Or Canopies (AREA)
GB8807047A 1987-03-26 1988-03-24 Roof support Expired - Fee Related GB2202569B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878707235A GB8707235D0 (en) 1987-03-26 1987-03-26 Roof support

Publications (3)

Publication Number Publication Date
GB8807047D0 GB8807047D0 (en) 1988-04-27
GB2202569A GB2202569A (en) 1988-09-28
GB2202569B true GB2202569B (en) 1990-12-05

Family

ID=10614689

Family Applications (2)

Application Number Title Priority Date Filing Date
GB878707235A Pending GB8707235D0 (en) 1987-03-26 1987-03-26 Roof support
GB8807047A Expired - Fee Related GB2202569B (en) 1987-03-26 1988-03-24 Roof support

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB878707235A Pending GB8707235D0 (en) 1987-03-26 1987-03-26 Roof support

Country Status (1)

Country Link
GB (2) GB8707235D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2471072C2 (en) * 2011-04-12 2012-12-27 Открытое акционерное общество "Объединенные машиностроительные технологии" Device for connection of covering with enclosure of powered support section

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1431609A (en) * 1972-12-28 1976-04-14 Voest Ag Mine roof support and shield structure
GB2042036A (en) * 1979-02-14 1980-09-17 Voest Alpine Ag Mine roof support
GB2050482A (en) * 1979-05-03 1981-01-07 Voest Alpine Ag Improvements in or Relating to Supporting Jacks
GB2063976A (en) * 1979-11-23 1981-06-10 Ct Kt Maszyn Gorniczych Komag Mine Roof Support Unit for Longwall Recesses
GB2067640A (en) * 1980-01-05 1981-07-30 Gewerk Eisenhuette Westfalia Mine roof supports

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1431609A (en) * 1972-12-28 1976-04-14 Voest Ag Mine roof support and shield structure
GB2042036A (en) * 1979-02-14 1980-09-17 Voest Alpine Ag Mine roof support
GB2050482A (en) * 1979-05-03 1981-01-07 Voest Alpine Ag Improvements in or Relating to Supporting Jacks
GB2063976A (en) * 1979-11-23 1981-06-10 Ct Kt Maszyn Gorniczych Komag Mine Roof Support Unit for Longwall Recesses
GB2067640A (en) * 1980-01-05 1981-07-30 Gewerk Eisenhuette Westfalia Mine roof supports

Also Published As

Publication number Publication date
GB8807047D0 (en) 1988-04-27
GB2202569A (en) 1988-09-28
GB8707235D0 (en) 1987-04-29

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Legal Events

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

Effective date: 19930324