GB1216322A - Improvements in or relating to mine roof supports - Google Patents

Improvements in or relating to mine roof supports

Info

Publication number
GB1216322A
GB1216322A GB08425/67A GB1842567A GB1216322A GB 1216322 A GB1216322 A GB 1216322A GB 08425/67 A GB08425/67 A GB 08425/67A GB 1842567 A GB1842567 A GB 1842567A GB 1216322 A GB1216322 A GB 1216322A
Authority
GB
United Kingdom
Prior art keywords
mine roof
roof supports
relating
april
see
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
GB08425/67A
Inventor
Alexander Dalrymple Mcluckie
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.)
Dobson Ltd W E & F
WE&F Dobson Ltd
Original Assignee
Dobson Ltd W E & F
WE&F 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 Dobson Ltd W E & F, WE&F Dobson Ltd filed Critical Dobson Ltd W E & F
Priority to GB08425/67A priority Critical patent/GB1216322A/en
Priority to US726275A priority patent/US3548601A/en
Publication of GB1216322A publication Critical patent/GB1216322A/en
Expired 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
    • E21D23/03—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support

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)
  • Tents Or Canopies (AREA)

Abstract

1,216,322. Advancing mine roof supports. W. E. & F. DOBSON Ltd. 16 April, 1968 [21 April, 1967], No. 18425/67. Heading E1P. In an advancing mine roof support frame having metal side shields 6A suspended from the canopy 4A, each of the shields is provided with a sheet of rubber 12A of flanged arcuate shape to co-operate with like elements on adjacent units to prevent ingress of detached material into the gap therebetween, see also Fig. 3 (not shown). (For Figure see next page)
GB08425/67A 1967-04-21 1967-04-21 Improvements in or relating to mine roof supports Expired GB1216322A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB08425/67A GB1216322A (en) 1967-04-21 1967-04-21 Improvements in or relating to mine roof supports
US726275A US3548601A (en) 1967-04-21 1968-04-15 Mine roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB08425/67A GB1216322A (en) 1967-04-21 1967-04-21 Improvements in or relating to mine roof supports

Publications (1)

Publication Number Publication Date
GB1216322A true GB1216322A (en) 1970-12-16

Family

ID=10112236

Family Applications (1)

Application Number Title Priority Date Filing Date
GB08425/67A Expired GB1216322A (en) 1967-04-21 1967-04-21 Improvements in or relating to mine roof supports

Country Status (2)

Country Link
US (1) US3548601A (en)
GB (1) GB1216322A (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1387311A (en) * 1972-03-24 1975-03-12 Gullick Dobson Ltd Mine roof supports
US4432673A (en) * 1981-04-25 1984-02-21 Dowty Mining Equipment Limited Mine roof support
CN105626117A (en) * 2016-02-25 2016-06-01 郑州四维矿业机械有限责任公司 Hydraulic support and jacking beam for hydraulic support
CN105626115A (en) * 2016-02-25 2016-06-01 郑州四维矿业机械有限责任公司 Backfilling hydraulic support

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1061071A (en) * 1964-03-20 1967-03-08 Gullick Ltd Improvements in or relating to mine roof supports
US3431737A (en) * 1967-02-14 1969-03-11 Wild A G & Co Ltd Hydraulic roof supports

Also Published As

Publication number Publication date
US3548601A (en) 1970-12-22

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