GB772947A - Improvements in or relating to louvres for the control of air or other gas - Google Patents
Improvements in or relating to louvres for the control of air or other gasInfo
- Publication number
- GB772947A GB772947A GB3381655A GB3381655A GB772947A GB 772947 A GB772947 A GB 772947A GB 3381655 A GB3381655 A GB 3381655A GB 3381655 A GB3381655 A GB 3381655A GB 772947 A GB772947 A GB 772947A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaped member
- frame
- leg
- blade
- pins
- 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
- F24F13/08—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)
- Air-Flow Control Members (AREA)
- Duct Arrangements (AREA)
Abstract
772,947. Ventilators. CRITTAL & CO., Ltd., R., and COX, W. R. Nov. 25, 1955, No. 33816/55. Class 137 In a louvre construction, particularly for directing the flow of air from ducts, each blade_4, constructed from a single strip of metal, Fig. 3, is supported at each end in a frame 1 by one leg 2 of a U-shaped member which is made of wire, or rod, and projects through the respective side of the frame. The remaining leg of each U- shaped member serves, in a similar manner, to support an adjacent blade. Each leg 2, which projects into an opening in the corresponding end of the associated blade, may be made a tight fit so that the louvre blade may be retained in any adjusted position. When the blades are to be moved simultaneously by a comman operating member, not shown, they are made to fit loosely around the legs 2 which may be tapered at their ends to facilitate assembling. Coninuous recesses may be provided in the sides of the frame to accommodate the base portions 3 of the U- shaped members. In a modification each U-shaped member is constructed of two pins which constitute the legs, the base of the U-shaped member consisting of a plate to which the pins are riveted. If there is an odd number of louvre blades one leg of each of one end pair of U-shaped members is removed and the bases 3 of those members are secured, e.g., by welding, to the frame 1. The plate forming the base of any U-shaped member may be extended for the mounting of one, or more, additional pins.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3381655A GB772947A (en) | 1955-11-25 | 1955-11-25 | Improvements in or relating to louvres for the control of air or other gas |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3381655A GB772947A (en) | 1955-11-25 | 1955-11-25 | Improvements in or relating to louvres for the control of air or other gas |
Publications (1)
Publication Number | Publication Date |
---|---|
GB772947A true GB772947A (en) | 1957-04-17 |
Family
ID=10357830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3381655A Expired GB772947A (en) | 1955-11-25 | 1955-11-25 | Improvements in or relating to louvres for the control of air or other gas |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB772947A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3270657A (en) * | 1965-03-10 | 1966-09-06 | Richard C Jaye | Air outlet having angularly adjustable louvers |
EP0227862A1 (en) * | 1985-09-05 | 1987-07-08 | Rachels Industries Inc. | Frictional blade assembly |
GB2493376A (en) * | 2011-08-03 | 2013-02-06 | 4Energy Ltd | Removable vent for use in underfloor ventilation systems |
-
1955
- 1955-11-25 GB GB3381655A patent/GB772947A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3270657A (en) * | 1965-03-10 | 1966-09-06 | Richard C Jaye | Air outlet having angularly adjustable louvers |
EP0227862A1 (en) * | 1985-09-05 | 1987-07-08 | Rachels Industries Inc. | Frictional blade assembly |
GB2493376A (en) * | 2011-08-03 | 2013-02-06 | 4Energy Ltd | Removable vent for use in underfloor ventilation systems |
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