GB1271269A - Improvements in or relating to mine roof supports - Google Patents

Improvements in or relating to mine roof supports

Info

Publication number
GB1271269A
GB1271269A GB2859569A GB2859569A GB1271269A GB 1271269 A GB1271269 A GB 1271269A GB 2859569 A GB2859569 A GB 2859569A GB 2859569 A GB2859569 A GB 2859569A GB 1271269 A GB1271269 A GB 1271269A
Authority
GB
United Kingdom
Prior art keywords
mine roof
roof
relating
roof supports
june
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
GB2859569A
Other languages
English (en)
Inventor
Frederick Billington
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.)
Gullick Dobson Ltd
Original Assignee
Gullick Dobson 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 Gullick Dobson Ltd filed Critical Gullick Dobson Ltd
Priority to GB2859569A priority Critical patent/GB1271269A/en
Priority to DE19702027367 priority patent/DE2027367A1/de
Publication of GB1271269A publication Critical patent/GB1271269A/en
Expired legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D17/00—Caps for supporting mine roofs
    • E21D17/02—Cantilever extension or similar protecting devices
    • E21D17/0213—Assembling devices for pivoting caps upwardly

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)
  • Developing Agents For Electrophotography (AREA)
  • Tents Or Canopies (AREA)
GB2859569A 1969-06-05 1969-06-05 Improvements in or relating to mine roof supports Expired GB1271269A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB2859569A GB1271269A (en) 1969-06-05 1969-06-05 Improvements in or relating to mine roof supports
DE19702027367 DE2027367A1 (enrdf_load_stackoverflow) 1969-06-05 1970-06-04

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2859569A GB1271269A (en) 1969-06-05 1969-06-05 Improvements in or relating to mine roof supports

Publications (1)

Publication Number Publication Date
GB1271269A true GB1271269A (en) 1972-04-19

Family

ID=10278097

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2859569A Expired GB1271269A (en) 1969-06-05 1969-06-05 Improvements in or relating to mine roof supports

Country Status (2)

Country Link
DE (1) DE2027367A1 (enrdf_load_stackoverflow)
GB (1) GB1271269A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE2027367A1 (enrdf_load_stackoverflow) 1970-12-17

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