ZA927962B - Security parking system. - Google Patents

Security parking system.

Info

Publication number
ZA927962B
ZA927962B ZA927962A ZA927962A ZA927962B ZA 927962 B ZA927962 B ZA 927962B ZA 927962 A ZA927962 A ZA 927962A ZA 927962 A ZA927962 A ZA 927962A ZA 927962 B ZA927962 B ZA 927962B
Authority
ZA
South Africa
Prior art keywords
parking system
security parking
security
parking
Prior art date
Application number
ZA927962A
Inventor
Martinus Emanuel Du Toit
Gerhard Francois Du Toit
Original Assignee
Martinus Emanuel Du Toit
Gerhard Francois Du Toit
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 Martinus Emanuel Du Toit, Gerhard Francois Du Toit filed Critical Martinus Emanuel Du Toit
Publication of ZA927962B publication Critical patent/ZA927962B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/34—Machine propelled along the working face by cable or chain
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
    • E21C25/16—Machines slitting solely by one or more rotating saws, cutting discs, or wheels
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/10—Making by using boring or cutting machines
    • E21D9/1053—Making by using boring or cutting machines for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently, e.g. by blasting

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)
  • Mechanical Engineering (AREA)
  • Environmental & Geological Engineering (AREA)
  • Earth Drilling (AREA)
ZA927962A 1991-01-30 1992-10-15 Security parking system. ZA927962B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ZA916800 1991-01-30

Publications (1)

Publication Number Publication Date
ZA927962B true ZA927962B (en) 1993-04-23

Family

ID=25580916

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA927962A ZA927962B (en) 1991-01-30 1992-10-15 Security parking system.

Country Status (2)

Country Link
AP (1) AP326A (en)
ZA (1) ZA927962B (en)

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2856117C2 (en) * 1978-12-23 1983-05-26 Halbach & Braun, 5600 Wuppertal Device for guiding a coal plow on the conveyor trough of a chain conveyor

Also Published As

Publication number Publication date
AP326A (en) 1994-03-17
AP9200359A0 (en) 1992-04-30

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