GB1233610A - - Google Patents

Info

Publication number
GB1233610A
GB1233610A GB1233610DA GB1233610A GB 1233610 A GB1233610 A GB 1233610A GB 1233610D A GB1233610D A GB 1233610DA GB 1233610 A GB1233610 A GB 1233610A
Authority
GB
United Kingdom
Prior art keywords
canopy
props
supported
mine roof
support
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
Other languages
English (en)
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 GB1233610A publication Critical patent/GB1233610A/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
    • E21D23/04—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)
GB1233610D 1968-10-01 1968-10-01 Expired GB1233610A (enrdf_load_stackoverflow)

Applications Claiming Priority (1)

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

Publications (1)

Publication Number Publication Date
GB1233610A true GB1233610A (enrdf_load_stackoverflow) 1971-05-26

Family

ID=10441255

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1233610D Expired GB1233610A (enrdf_load_stackoverflow) 1968-10-01 1968-10-01

Country Status (3)

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

Cited By (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

Cited By (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
DE1947377A1 (de) 1970-04-23
JPS4932164B1 (enrdf_load_stackoverflow) 1974-08-28

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Legal Events

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