GB640374A - Counterbalanced louver construction for ventilating use - Google Patents

Counterbalanced louver construction for ventilating use

Info

Publication number
GB640374A
GB640374A GB18320/47A GB1832047A GB640374A GB 640374 A GB640374 A GB 640374A GB 18320/47 A GB18320/47 A GB 18320/47A GB 1832047 A GB1832047 A GB 1832047A GB 640374 A GB640374 A GB 640374A
Authority
GB
United Kingdom
Prior art keywords
louvres
louvre
opening
channel
closing
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
GB18320/47A
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.)
EMIL AUGUST MADER
Original Assignee
EMIL AUGUST MADER
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 EMIL AUGUST MADER filed Critical EMIL AUGUST MADER
Publication of GB640374A publication Critical patent/GB640374A/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
    • F24F13/14—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre
    • F24F13/15—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers built up of tilting members, e.g. louvre with parallel simultaneously tiltable lamellae

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Specific Sealing Or Ventilating Devices For Doors And Windows (AREA)

Abstract

640,374. Ventilators. MADER, E. A., and SPARGO, J. July 10, 1947, No. 18320. Convention date, June 14, 1940. [Class 137] A louvre ventilator has a channel-shaped operating bar linked to the louvres with brackets carried by each louvre projecting into the channel to which they are pivotally connected. The louvres are biassed by their weight towards closing and caused to open under air pressure springs being provided which assist both closing and opening, their leverage respectively being reduced and increased as the louvres open. Louvres 10 pivoted on rods 9 journalled in a frame 2 detachably secured in a main frame 1 of a wall opening are linked by brackets 18 to a channel bar 16. The bracket of the middle louvre has opposed lateral arms 20, 21 respectively connected to louvre-closing and opening springs 23, 25, secured to opposite ends of the frame. The channel bar may be connected to the face ends of the louvres on the outside of the opening. A felt strip may be located in the arched lower edges of the louvres forming a seat for the edge of the next lower louvre which embraces its pivot rod.
GB18320/47A 1940-06-14 1947-07-10 Counterbalanced louver construction for ventilating use Expired GB640374A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US640374XA 1940-06-14 1940-06-14

Publications (1)

Publication Number Publication Date
GB640374A true GB640374A (en) 1950-07-19

Family

ID=22053146

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18320/47A Expired GB640374A (en) 1940-06-14 1947-07-10 Counterbalanced louver construction for ventilating use

Country Status (1)

Country Link
GB (1) GB640374A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265962B (en) * 1959-01-21 1968-04-11 Erich Doering Louvre windows

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1265962B (en) * 1959-01-21 1968-04-11 Erich Doering Louvre windows

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