GB1387311A - Mine roof supports - Google Patents

Mine roof supports

Info

Publication number
GB1387311A
GB1387311A GB1397272A GB1397272A GB1387311A GB 1387311 A GB1387311 A GB 1387311A GB 1397272 A GB1397272 A GB 1397272A GB 1397272 A GB1397272 A GB 1397272A GB 1387311 A GB1387311 A GB 1387311A
Authority
GB
United Kingdom
Prior art keywords
mine roof
roof supports
supports
mine
roof
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
GB1397272A
Other languages
English (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.)
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 GB1397272A priority Critical patent/GB1387311A/en
Priority to US00342304A priority patent/US3848420A/en
Priority to AU53457/73A priority patent/AU466853B2/en
Priority to PL1973161413A priority patent/PL84776B1/pl
Publication of GB1387311A publication Critical patent/GB1387311A/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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0017—Pile type supports
    • E21D23/003—Pile type supports consisting of a rigid pile
    • 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)
  • Excavating Of Shafts Or Tunnels (AREA)
GB1397272A 1972-03-24 1972-03-24 Mine roof supports Expired GB1387311A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
GB1397272A GB1387311A (en) 1972-03-24 1972-03-24 Mine roof supports
US00342304A US3848420A (en) 1972-03-24 1973-03-16 Mine roof supports
AU53457/73A AU466853B2 (en) 1972-03-24 1973-03-19 Improvements in or relating to mine roof support
PL1973161413A PL84776B1 (enrdf_load_stackoverflow) 1972-03-24 1973-03-22

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1397272A GB1387311A (en) 1972-03-24 1972-03-24 Mine roof supports

Publications (1)

Publication Number Publication Date
GB1387311A true GB1387311A (en) 1975-03-12

Family

ID=10032710

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1397272A Expired GB1387311A (en) 1972-03-24 1972-03-24 Mine roof supports

Country Status (4)

Country Link
US (1) US3848420A (enrdf_load_stackoverflow)
AU (1) AU466853B2 (enrdf_load_stackoverflow)
GB (1) GB1387311A (enrdf_load_stackoverflow)
PL (1) PL84776B1 (enrdf_load_stackoverflow)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1494284A (en) * 1975-07-19 1977-12-07 Gullick Dobson Ltd Self-advancing mine roof supports
DE2646563C3 (de) * 1976-10-15 1979-08-09 Bochumer Eisenhuette Heintzmann Gmbh & Co, 4630 Bochum Ausbau für den Saumbereich eines Strebs
JPS5416303A (en) * 1977-07-07 1979-02-06 Taiheiyo Eng Apparatus for controlling floated dust powder and like in long wall type coal mining face
DE3643120A1 (de) * 1986-01-22 1987-07-30 Voest Alpine Ag Ortsbeweglicher abstuetzbock
US5019651A (en) * 1990-06-20 1991-05-28 Merck & Co., Inc. Process for preparing 4-amino-1-hydroxybutylidene-1,1-bisphosphonic acid (ABP) or salts thereof
US5769504A (en) * 1996-03-11 1998-06-23 Council Of Scientific & Industrial Research Equipment for shortwall mining useful for extraction of pillars in underground coal mines
US8590982B2 (en) * 2009-07-10 2013-11-26 Joy Mm Delaware, Inc. Longwall mining roof supports
CN102536288A (zh) * 2012-01-10 2012-07-04 中煤北京煤矿机械有限责任公司 绿色环保高水充填支架

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1124665A (en) * 1966-04-29 1968-08-21 Gullick Ltd Improvements in or relating to mine roof supports
GB1216322A (en) * 1967-04-21 1970-12-16 Dobson Ltd W E & F Improvements in or relating to mine roof supports
GB1206283A (en) * 1967-07-28 1970-09-23 Herbert Cotterill Ltd Improvements in or relating to mine roof supports
US3570255A (en) * 1968-06-10 1971-03-16 Mastabar Mining Equipment Co L Mine roof support
DE6902441U (de) * 1969-01-23 1969-05-22 Kloeckner Werke Ag Dreirahmengespann fuer den schreitenden strebausbau mit einer an seinen versatzseitigen stempeln angebrachten versatzabkleidung
DE2027299A1 (de) * 1970-06-03 1971-12-09 Klöckner-Werke ,4100 Duisburg Kappenzug für Ausbaurahmen des wandernden Strebausbaus

Also Published As

Publication number Publication date
AU5345773A (en) 1974-09-19
US3848420A (en) 1974-11-19
PL84776B1 (enrdf_load_stackoverflow) 1976-04-30
AU466853B2 (en) 1975-11-13

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee