GB528027A - Improvements in and relating to ventilators - Google Patents

Improvements in and relating to ventilators

Info

Publication number
GB528027A
GB528027A GB1582939A GB1582939A GB528027A GB 528027 A GB528027 A GB 528027A GB 1582939 A GB1582939 A GB 1582939A GB 1582939 A GB1582939 A GB 1582939A GB 528027 A GB528027 A GB 528027A
Authority
GB
United Kingdom
Prior art keywords
shutter
ventilator
ventilators
relating
screwed
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
GB1582939A
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
Priority to GB1582939A priority Critical patent/GB528027A/en
Publication of GB528027A publication Critical patent/GB528027A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F24F13/16—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of parallelly-movable plates

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Special Spraying Apparatus (AREA)

Abstract

528,027. Ventilators. FOUNTAIN, P. G. May 30, 1939, No. 15829. [Class 137] The ports of a wall ventilator are closed by a shutter A which is secured to a screwed stem B on which a clamping knob C is screwed down on to the ventilator front until the shutter is drawn against the apertured front. A bridge piece D carries springs E which support and guide the shutter. The apertures are thereby sealed against the entry of gas or air. In a modification, the shutter A may be caused to close an opening in the rear of the ventilator casing.
GB1582939A 1939-05-30 1939-05-30 Improvements in and relating to ventilators Expired GB528027A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1582939A GB528027A (en) 1939-05-30 1939-05-30 Improvements in and relating to ventilators

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1582939A GB528027A (en) 1939-05-30 1939-05-30 Improvements in and relating to ventilators

Publications (1)

Publication Number Publication Date
GB528027A true GB528027A (en) 1940-10-21

Family

ID=10066274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1582939A Expired GB528027A (en) 1939-05-30 1939-05-30 Improvements in and relating to ventilators

Country Status (1)

Country Link
GB (1) GB528027A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790370A (en) * 1953-11-02 1957-04-30 American Seating Co Toggle-bolt for installing theater chair standards on ventilator grilles

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790370A (en) * 1953-11-02 1957-04-30 American Seating Co Toggle-bolt for installing theater chair standards on ventilator grilles

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