FR486385A - Suspension device for flexible ventilation pipes in mines - Google Patents

Suspension device for flexible ventilation pipes in mines

Info

Publication number
FR486385A
FR486385A FR486385DA FR486385A FR 486385 A FR486385 A FR 486385A FR 486385D A FR486385D A FR 486385DA FR 486385 A FR486385 A FR 486385A
Authority
FR
France
Prior art keywords
mines
suspension device
ventilation pipes
flexible ventilation
flexible
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
French (fr)
Inventor
Norman Blythe Braly
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR486385A publication Critical patent/FR486385A/en
Expired legal-status Critical Current

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
    • E21F17/00—Methods or devices for use in mines or tunnels, not covered elsewhere
    • E21F17/02—Suspension devices for tubes or the like, e.g. for ventilating ducts

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)
FR486385D 1917-08-17 1917-08-17 Suspension device for flexible ventilation pipes in mines Expired FR486385A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR486385T 1917-08-17

Publications (1)

Publication Number Publication Date
FR486385A true FR486385A (en) 1918-03-28

Family

ID=1522993

Family Applications (1)

Application Number Title Priority Date Filing Date
FR486385D Expired FR486385A (en) 1917-08-17 1917-08-17 Suspension device for flexible ventilation pipes in mines

Country Status (1)

Country Link
FR (1) FR486385A (en)

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