[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

GB1548724A - Mine-roof supports - Google Patents

Mine-roof supports

Info

Publication number
GB1548724A
GB1548724A GB3693776A GB3693776A GB1548724A GB 1548724 A GB1548724 A GB 1548724A GB 3693776 A GB3693776 A GB 3693776A GB 3693776 A GB3693776 A GB 3693776A GB 1548724 A GB1548724 A GB 1548724A
Authority
GB
United Kingdom
Prior art keywords
mine
roof supports
roof
supports
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
GB3693776A
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 GB3693776A priority Critical patent/GB1548724A/en
Publication of GB1548724A publication Critical patent/GB1548724A/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
    • 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)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
GB3693776A 1977-09-05 1977-09-05 Mine-roof supports Expired GB1548724A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB3693776A GB1548724A (en) 1977-09-05 1977-09-05 Mine-roof supports

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3693776A GB1548724A (en) 1977-09-05 1977-09-05 Mine-roof supports

Publications (1)

Publication Number Publication Date
GB1548724A true GB1548724A (en) 1979-07-18

Family

ID=10392397

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3693776A Expired GB1548724A (en) 1977-09-05 1977-09-05 Mine-roof supports

Country Status (1)

Country Link
GB (1) GB1548724A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928151A1 (en) * 1979-07-12 1981-01-22 Bochumer Eisen Heintzmann EXTENSION FRAME
CN104790997A (en) * 2015-03-26 2015-07-22 北京科技大学 Self-moving advance temporary supporting hydraulic bracket used for fully-mechanized excavation
CN113217049A (en) * 2021-04-23 2021-08-06 山西精专致科技股份有限公司 Auxiliary maintenance device for mining coal mining machine

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2928151A1 (en) * 1979-07-12 1981-01-22 Bochumer Eisen Heintzmann EXTENSION FRAME
US4309131A (en) * 1979-07-12 1982-01-05 Bochumer Eisenhutte Heintzmann Gmbh & Co. Mine roof support
CN104790997A (en) * 2015-03-26 2015-07-22 北京科技大学 Self-moving advance temporary supporting hydraulic bracket used for fully-mechanized excavation
CN104790997B (en) * 2015-03-26 2017-03-01 北京科技大学 A kind of certainly mobile advanced gib hydraulic support for comprehensive pick
CN113217049A (en) * 2021-04-23 2021-08-06 山西精专致科技股份有限公司 Auxiliary maintenance device for mining coal mining machine

Similar Documents

Publication Publication Date Title
AU4201478A (en) Step-stools
AU515984B2 (en) 4-substituted-pyrazoles
AU3526278A (en) L-sucrose
AU3728978A (en) Sulfamoyl-aryl-ketones
AU4022878A (en) Thiopropionamides
JPS543584A (en) Ceilometer
AU3828478A (en) Benzodiazepine-diones
AU3677378A (en) N-acylmethyl-chloroacetanilides
AU4286678A (en) 4a-aryl-octahydro-1h-2-pyrindines
HK23182A (en) Support
AU3918778A (en) Beta-substituted-diketones
AU3785078A (en) Piperidino-propanols
AU3939078A (en) 2-chlorosulfinylazetidin-4-ones
AU4255778A (en) 3-di-n-propyl-acetoxy-benzodiazepin-2-ones
AU3939978A (en) 2-guanidinomethyl-indoline
BG28612A1 (en) Auto- train
AU3533578A (en) Micro-mill-mixer
AU4216378A (en) Antibiotic-a-40104
AU3774978A (en) Butyl-p-benzoylbenzoates
AU3355078A (en) Aryl-hexafuranosides
AU4026278A (en) Thienobenzazepines
GB1548724A (en) Mine-roof supports
AU4225778A (en) Imino-bridged benzocycloheptapyridines
AU3845478A (en) Isoquinoline-diones
AU520181B2 (en) Lkylthiophenoxypropanolamines

Legal Events

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