CA946633A - Self propelled mine roof supports - Google Patents

Self propelled mine roof supports

Info

Publication number
CA946633A
CA946633A CA137,013A CA137013A CA946633A CA 946633 A CA946633 A CA 946633A CA 137013 A CA137013 A CA 137013A CA 946633 A CA946633 A CA 946633A
Authority
CA
Canada
Prior art keywords
mine roof
roof supports
self propelled
propelled mine
self
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
CA137,013A
Other languages
English (en)
Other versions
CA137013S (en
Inventor
Archelaius D. Allen
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
Application granted granted Critical
Publication of CA946633A publication Critical patent/CA946633A/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

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)
  • Lining And Supports For Tunnels (AREA)
  • Footwear And Its Accessory, Manufacturing Method And Apparatuses (AREA)
CA137,013A 1971-03-16 1972-03-14 Self propelled mine roof supports Expired CA946633A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB717671A GB1375562A (de) 1971-03-16 1971-03-16

Publications (1)

Publication Number Publication Date
CA946633A true CA946633A (en) 1974-05-07

Family

ID=9828069

Family Applications (1)

Application Number Title Priority Date Filing Date
CA137,013A Expired CA946633A (en) 1971-03-16 1972-03-14 Self propelled mine roof supports

Country Status (4)

Country Link
CA (1) CA946633A (de)
DE (1) DE2211605C3 (de)
GB (1) GB1375562A (de)
ZA (1) ZA721773B (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL115687B1 (en) * 1978-03-24 1981-04-30 Centralny Osrodek Projektowo Konstrukcyjny Maszyn Gorn Gangway walking roof support
US4143991A (en) * 1978-05-24 1979-03-13 Frank Stafford Mine roof support system
DE2901054A1 (de) * 1979-01-12 1980-07-17 Salzgitter Maschinen Ag Vorlaeufiger streckenausbau fuer durchbaubetriebe in strecken des untertaegigen bergbaus
CN110424996B (zh) * 2019-08-13 2020-09-04 天地科技股份有限公司 一种无反复支撑自移式超前支护装置
CN111608705A (zh) * 2020-06-01 2020-09-01 安徽理工大学 一种综掘工作面迈步式锚支护机器人

Also Published As

Publication number Publication date
DE2211605A1 (de) 1972-09-28
ZA721773B (en) 1972-12-27
GB1375562A (de) 1974-11-27
DE2211605B2 (de) 1973-11-29
DE2211605C3 (de) 1974-06-20

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