JPS4932164B1 - - Google Patents

Info

Publication number
JPS4932164B1
JPS4932164B1 JP44074721A JP7472169A JPS4932164B1 JP S4932164 B1 JPS4932164 B1 JP S4932164B1 JP 44074721 A JP44074721 A JP 44074721A JP 7472169 A JP7472169 A JP 7472169A JP S4932164 B1 JPS4932164 B1 JP S4932164B1
Authority
JP
Japan
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.)
Pending
Application number
JP44074721A
Other languages
Japanese (ja)
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 filed Critical
Publication of JPS4932164B1 publication Critical patent/JPS4932164B1/ja
Pending 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
    • E21D23/04—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
    • E21D23/06—Special mine caps or special tops of pit-props for permitting step-by-step movement

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Suspension Of Electric Lines Or Cables (AREA)
  • Tents Or Canopies (AREA)
JP44074721A 1968-10-01 1969-09-22 Pending JPS4932164B1 (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4643368 1968-10-01

Publications (1)

Publication Number Publication Date
JPS4932164B1 true JPS4932164B1 (enrdf_load_stackoverflow) 1974-08-28

Family

ID=10441255

Family Applications (1)

Application Number Title Priority Date Filing Date
JP44074721A Pending JPS4932164B1 (enrdf_load_stackoverflow) 1968-10-01 1969-09-22

Country Status (3)

Country Link
JP (1) JPS4932164B1 (enrdf_load_stackoverflow)
DE (1) DE1947377A1 (enrdf_load_stackoverflow)
GB (1) GB1233610A (enrdf_load_stackoverflow)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2330959C2 (ru) * 2006-08-14 2008-08-10 Николай Филиппович Рысев Временная предохранительная крепь

Also Published As

Publication number Publication date
GB1233610A (enrdf_load_stackoverflow) 1971-05-26
DE1947377A1 (de) 1970-04-23

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