ZA731578B - Compressible mine supports - Google Patents

Compressible mine supports

Info

Publication number
ZA731578B
ZA731578B ZA731578A ZA731578A ZA731578B ZA 731578 B ZA731578 B ZA 731578B ZA 731578 A ZA731578 A ZA 731578A ZA 731578 A ZA731578 A ZA 731578A ZA 731578 B ZA731578 B ZA 731578B
Authority
ZA
South Africa
Prior art keywords
compressible
mine supports
mine
supports
compressible mine
Prior art date
Application number
ZA731578A
Inventor
R Townsend
Original Assignee
Mine Support Syst 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 Mine Support Syst Ltd filed Critical Mine Support Syst Ltd
Priority to ZA731578A priority Critical patent/ZA731578B/en
Priority to FR7408413A priority patent/FR2220665B1/fr
Priority to AU66329/74A priority patent/AU6632974A/en
Priority to ZM45/74A priority patent/ZM4574A1/en
Priority to JP49026689A priority patent/JPS5040401A/ja
Priority to BE141756A priority patent/BE812004A/en
Priority to BR1725/74A priority patent/BR7401725D0/en
Priority to DE2410976A priority patent/DE2410976A1/en
Priority to AT188774A priority patent/AT332343B/en
Publication of ZA731578B publication Critical patent/ZA731578B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/16—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure
    • E21D15/18—Telescopic props with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
ZA731578A 1973-03-07 1973-03-07 Compressible mine supports ZA731578B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
ZA731578A ZA731578B (en) 1973-03-07 1973-03-07 Compressible mine supports
FR7408413A FR2220665B1 (en) 1973-03-07 1974-03-06
AU66329/74A AU6632974A (en) 1973-03-07 1974-03-06 Load cells
ZM45/74A ZM4574A1 (en) 1973-03-07 1974-03-07 Load cells
JP49026689A JPS5040401A (en) 1973-03-07 1974-03-07
BE141756A BE812004A (en) 1973-03-07 1974-03-07 SUPPORT UNIT
BR1725/74A BR7401725D0 (en) 1973-03-07 1974-03-07 LOAD COMPARTMENT IMPROVEMENTS, LIQUID SCREW AND MINE SUPPORT
DE2410976A DE2410976A1 (en) 1973-03-07 1974-03-07 SUPPORTING ELEMENT
AT188774A AT332343B (en) 1973-03-07 1974-03-07 CARRYING DEVICE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA731578A ZA731578B (en) 1973-03-07 1973-03-07 Compressible mine supports

Publications (1)

Publication Number Publication Date
ZA731578B true ZA731578B (en) 1974-09-25

Family

ID=25566046

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA731578A ZA731578B (en) 1973-03-07 1973-03-07 Compressible mine supports

Country Status (2)

Country Link
BE (1) BE812004A (en)
ZA (1) ZA731578B (en)

Also Published As

Publication number Publication date
BE812004A (en) 1974-07-01

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