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ZA781784B - Improvements to rail systems - Google Patents

Improvements to rail systems

Info

Publication number
ZA781784B
ZA781784B ZA00781784A ZA781784A ZA781784B ZA 781784 B ZA781784 B ZA 781784B ZA 00781784 A ZA00781784 A ZA 00781784A ZA 781784 A ZA781784 A ZA 781784A ZA 781784 B ZA781784 B ZA 781784B
Authority
ZA
South Africa
Prior art keywords
rail systems
rail
systems
Prior art date
Application number
ZA00781784A
Inventor
F Poole
G Rowe
Original Assignee
Westinghouse Brake & Signal
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 Westinghouse Brake & Signal filed Critical Westinghouse Brake & Signal
Publication of ZA781784B publication Critical patent/ZA781784B/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/14—Air partitions; Air locks
    • E21F1/145—Air locks

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)
  • Power-Operated Mechanisms For Wings (AREA)
ZA00781784A 1977-04-29 1978-03-29 Improvements to rail systems ZA781784B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB18150/77A GB1578602A (en) 1977-04-29 1977-04-29 Rail systems

Publications (1)

Publication Number Publication Date
ZA781784B true ZA781784B (en) 1979-03-28

Family

ID=10107505

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA00781784A ZA781784B (en) 1977-04-29 1978-03-29 Improvements to rail systems

Country Status (4)

Country Link
AU (1) AU515846B2 (en)
GB (1) GB1578602A (en)
IN (1) IN147790B (en)
ZA (1) ZA781784B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101798936B (en) * 2009-02-10 2012-05-23 淄博矿业集团有限责任公司 Self-locking device for rocker arm of air door
CN111608717B (en) * 2020-05-25 2021-06-15 中国矿业大学 Plate-mouth coupling type smoke exhaust device

Also Published As

Publication number Publication date
GB1578602A (en) 1980-11-05
AU3548878A (en) 1979-11-01
IN147790B (en) 1980-06-28
AU515846B2 (en) 1981-05-07

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