FR368213A - Ventilation process for tunnels and undergrounds - Google Patents

Ventilation process for tunnels and undergrounds

Info

Publication number
FR368213A
FR368213A FR368213DA FR368213A FR 368213 A FR368213 A FR 368213A FR 368213D A FR368213D A FR 368213DA FR 368213 A FR368213 A FR 368213A
Authority
FR
France
Prior art keywords
undergrounds
tunnels
ventilation process
ventilation
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
Charles Augustus Morris
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 FR368213A publication Critical patent/FR368213A/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
    • E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
    • E21F1/003—Ventilation of traffic tunnels

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)
FR368213D 1906-07-19 1906-07-19 Ventilation process for tunnels and undergrounds Expired FR368213A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR368213T 1906-07-19

Publications (1)

Publication Number Publication Date
FR368213A true FR368213A (en) 1906-11-22

Family

ID=1415296

Family Applications (1)

Application Number Title Priority Date Filing Date
FR368213D Expired FR368213A (en) 1906-07-19 1906-07-19 Ventilation process for tunnels and undergrounds

Country Status (1)

Country Link
FR (1) FR368213A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423629A1 (en) * 1978-04-19 1979-11-16 Alsthom Cgee Ventilation grille for underground tunnel - has series of freely pivoted flexible flaps and overlying powered openwork flaps for two way ventilation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2423629A1 (en) * 1978-04-19 1979-11-16 Alsthom Cgee Ventilation grille for underground tunnel - has series of freely pivoted flexible flaps and overlying powered openwork flaps for two way ventilation

Similar Documents

Publication Publication Date Title
FR368213A (en) Ventilation process for tunnels and undergrounds
FR366947A (en) Carousel
FR402864A (en) Improved collotypographic process
FR370825A (en) Rolling process for I-joists
FR371524A (en) Tobacco denicotinization process
FR369090A (en) Passette advancing automatically
FR384168A (en) De-tinning process
FR381291A (en) Must fermentation process
FR369729A (en) Crystallization process
CH36405A (en) Circle dividing apparatus
FR364379A (en) Mineral reduction process
FR381531A (en) Cementation process
CH38043A (en) Skittles apparatus
CH37097A (en) Draw curtain facility
FR382786A (en) Moire tracing process
FR353514A (en) Capping process
FR387194A (en) Crystallization process
FR372341A (en) Saponification process
CH37432A (en) Brick extruder
FR362405A (en) Process for the production of formaldehydesulfoxylates and alkali formaldehydehydrosulfites
FR371812A (en) Screening method and apparatus
FR400775A (en) Embroidery process
FR390154A (en) Bleaching process
FR377560A (en) Kneading process
FR375167A (en) Process for preparing dichlorethoxyethylene