FR487735A - Improvements to ventilation devices - Google Patents

Improvements to ventilation devices

Info

Publication number
FR487735A
FR487735A FR487735DA FR487735A FR 487735 A FR487735 A FR 487735A FR 487735D A FR487735D A FR 487735DA FR 487735 A FR487735 A FR 487735A
Authority
FR
France
Prior art keywords
ventilation devices
ventilation
devices
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
Alexander William Stewart
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 FR487735A publication Critical patent/FR487735A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23L—SUPPLYING AIR OR NON-COMBUSTIBLE LIQUIDS OR GASES TO COMBUSTION APPARATUS IN GENERAL ; VALVES OR DAMPERS SPECIALLY ADAPTED FOR CONTROLLING AIR SUPPLY OR DRAUGHT IN COMBUSTION APPARATUS; INDUCING DRAUGHT IN COMBUSTION APPARATUS; TOPS FOR CHIMNEYS OR VENTILATING SHAFTS; TERMINALS FOR FLUES
    • F23L17/00—Inducing draught; Tops for chimneys or ventilating shafts; Terminals for flues
    • F23L17/02—Tops for chimneys or ventilating shafts; Terminals for flues

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
FR487735D 1917-11-23 1917-11-23 Improvements to ventilation devices Expired FR487735A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR487735T 1917-11-23

Publications (1)

Publication Number Publication Date
FR487735A true FR487735A (en) 1918-07-23

Family

ID=1524175

Family Applications (1)

Application Number Title Priority Date Filing Date
FR487735D Expired FR487735A (en) 1917-11-23 1917-11-23 Improvements to ventilation devices

Country Status (1)

Country Link
FR (1) FR487735A (en)

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