GB1330115A - Self-advancing mine roof support - Google Patents

Self-advancing mine roof support

Info

Publication number
GB1330115A
GB1330115A GB2483671A GB2483671A GB1330115A GB 1330115 A GB1330115 A GB 1330115A GB 2483671 A GB2483671 A GB 2483671A GB 2483671 A GB2483671 A GB 2483671A GB 1330115 A GB1330115 A GB 1330115A
Authority
GB
United Kingdom
Prior art keywords
mine roof
advancing mine
support
april
jack
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
GB2483671A
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
Publication of GB1330115A publication Critical patent/GB1330115A/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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith

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)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Actuator (AREA)
GB2483671A 1970-04-18 1971-04-19 Self-advancing mine roof support Expired GB1330115A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2018747 1970-04-18

Publications (1)

Publication Number Publication Date
GB1330115A true GB1330115A (en) 1973-09-12

Family

ID=5768480

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2483671A Expired GB1330115A (en) 1970-04-18 1971-04-19 Self-advancing mine roof support

Country Status (3)

Country Link
GB (1) GB1330115A (enrdf_load_stackoverflow)
HU (1) HU163276B (enrdf_load_stackoverflow)
PL (1) PL71123B1 (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
HU163276B (enrdf_load_stackoverflow) 1973-07-28
PL71123B1 (enrdf_load_stackoverflow) 1974-04-30

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees