GB485889A - Improvements in and relating to ventilating devices - Google Patents
Improvements in and relating to ventilating devicesInfo
- Publication number
- GB485889A GB485889A GB330137A GB330137A GB485889A GB 485889 A GB485889 A GB 485889A GB 330137 A GB330137 A GB 330137A GB 330137 A GB330137 A GB 330137A GB 485889 A GB485889 A GB 485889A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rings
- air
- louvres
- spiders
- coaxial
- 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
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
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/062—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser having one or more bowls or cones diverging in the flow direction
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Duct Arrangements (AREA)
- Air-Flow Control Members (AREA)
Abstract
485,889. Ventilators. JOHNSTON,. N. F. Feb. 4, 1937, No. 3301. [Class 137] In a ventilating device comprising coaxial or spiral air spreading rings or louvres between which the air is ejected, the cross section of the rings at any point is of stream line form ; the inner peripheries being rounded, and the top and bottom faces tapered towards one another. In Fig. 1, to a foundation ring B of an air duct A is secured by spiders C coaxial. spaced rings D of diameters decreasing downwardly, a streamlined projection E being provided at the apex formed by the spiders. In Fig. 3, each ring D is secured to a sleeve S, these sleeves sliding one within the other, and being held in position by a spring H to regulate the amount of air passing. In this form the sections of the rings are of concavo-convex formation. In other modiftcations the rings or louvres are arranged spirally, and the spirals may be adjusted towards one another to limit the amount of air passing, as described in Specification 396,468. Fig. 9 shows a louvre with the convex surface formed of a rolled metal strip and the concave side filled with material M which hardens and adheres to the inner surface.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB330137A GB485889A (en) | 1937-02-04 | 1937-02-04 | Improvements in and relating to ventilating devices |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB330137A GB485889A (en) | 1937-02-04 | 1937-02-04 | Improvements in and relating to ventilating devices |
Publications (1)
Publication Number | Publication Date |
---|---|
GB485889A true GB485889A (en) | 1938-05-26 |
Family
ID=9755720
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB330137A Expired GB485889A (en) | 1937-02-04 | 1937-02-04 | Improvements in and relating to ventilating devices |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB485889A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2601947A (en) * | 1950-03-30 | 1952-07-01 | Hunter Fan And Ventilating Com | Guard for the rotating portions of air-moving devices |
US2616355A (en) * | 1950-03-25 | 1952-11-04 | Hilton H Mccabe | Adjustable ventilator |
US2727456A (en) * | 1952-02-20 | 1955-12-20 | Davies Charles | Adjustable air diffusers |
US3063356A (en) * | 1959-05-02 | 1962-11-13 | Peter G Fitt | Air diffusor |
US3087407A (en) * | 1959-09-11 | 1963-04-30 | Titus Mfg Corp | Antismudging air diffusers |
-
1937
- 1937-02-04 GB GB330137A patent/GB485889A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2616355A (en) * | 1950-03-25 | 1952-11-04 | Hilton H Mccabe | Adjustable ventilator |
US2601947A (en) * | 1950-03-30 | 1952-07-01 | Hunter Fan And Ventilating Com | Guard for the rotating portions of air-moving devices |
US2727456A (en) * | 1952-02-20 | 1955-12-20 | Davies Charles | Adjustable air diffusers |
US3063356A (en) * | 1959-05-02 | 1962-11-13 | Peter G Fitt | Air diffusor |
US3087407A (en) * | 1959-09-11 | 1963-04-30 | Titus Mfg Corp | Antismudging air diffusers |
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