GB396595A - Improvements in air, gas or smoke extractors - Google Patents
Improvements in air, gas or smoke extractorsInfo
- Publication number
- GB396595A GB396595A GB3322032A GB3322032A GB396595A GB 396595 A GB396595 A GB 396595A GB 3322032 A GB3322032 A GB 3322032A GB 3322032 A GB3322032 A GB 3322032A GB 396595 A GB396595 A GB 396595A
- Authority
- GB
- United Kingdom
- Prior art keywords
- extractor
- shaft
- band
- dome
- baseplate
- 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
- F24F7/00—Ventilation
- F24F7/02—Roof ventilation
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Catching Or Destruction (AREA)
- Respiratory Apparatuses And Protective Means (AREA)
Abstract
396,595. Ventilators ; chimney-tops. MACDONALD, D. F., Inverclyde, Kirn, Argyll. Nov. 24, 1932, Nos. 33220/32 and 5825/33. [Classes 25 and 137.] An air, gas, or smoke extractor comprises a dome or cover 1, Fig. 1, depending into an annular or other channel formed between the extractor shaft 2, a baseplate 5 extending outwardly from the shaft, an upwardly-converging outer band 3 extending all round the extractor and an intermediate wall 4 joined directly to the baseplate and to the band and converging downwardly or lying parallel to the extractor shaft. As shown in Fig. 7, the extractor may be provided with an external shield 17 extending over the gap 19 between the dome 1 and the outer band 3a whereby an extraction effect is produced not only by air currents in the plane of the extractor and flowing across the gap 19 but also by currents normal to the plane of the extractor and flowing across the gap 20 formed between the upper edge of the band 3a and the shield 17. In a modified form the band 3 and the intermediate wall 4 are replaced by a single band in the form of a spherical zone joined near the lower edge to the baseplate. In another modification the dome is adjustably supported by means of a screwed rod operating in a central screwthreaded boss carried by a spider within the upper part of the shaft. In a further modification, Fig. 9, an inlet shaft 36 having an upper cap 38 and lower distributing branches 37, 37a is provided centrally of the extractor shaft and serves to carry the dome 1.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3322032A GB396595A (en) | 1932-11-24 | 1932-11-24 | Improvements in air, gas or smoke extractors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3322032A GB396595A (en) | 1932-11-24 | 1932-11-24 | Improvements in air, gas or smoke extractors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB396595A true GB396595A (en) | 1933-08-10 |
Family
ID=10350102
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3322032A Expired GB396595A (en) | 1932-11-24 | 1932-11-24 | Improvements in air, gas or smoke extractors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB396595A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3315586A (en) * | 1965-06-03 | 1967-04-25 | Autocrat Corp | Vent and air inlet assembly |
BE1026783B1 (en) * | 2018-12-04 | 2020-09-10 | Xilio Nv | ROOF ENTRY FOR PIPES |
-
1932
- 1932-11-24 GB GB3322032A patent/GB396595A/en not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3315586A (en) * | 1965-06-03 | 1967-04-25 | Autocrat Corp | Vent and air inlet assembly |
BE1026783B1 (en) * | 2018-12-04 | 2020-09-10 | Xilio Nv | ROOF ENTRY FOR PIPES |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES489309A1 (en) | Ventilator | |
GB396595A (en) | Improvements in air, gas or smoke extractors | |
GB440118A (en) | Improvements relating to centrifugal apparatus for separation of dust and grit from air and gases | |
GB547539A (en) | Air distribution nozzle | |
GB423724A (en) | Improvements in or relating to ventilators | |
GB527286A (en) | Improvements in oil burning heaters | |
GB560241A (en) | Improvements in induction ventilators | |
USD87857S (en) | Design for a lighting fixture | |
GB451385A (en) | Improved cowl for chimneys ventilation shafts and the like | |
GB584398A (en) | Improvements in and relating to ventilators | |
GB362723A (en) | Improvements in steam dryers, grit or dust extractors for air or gases and the like | |
USD154026S (en) | Design for a box cover switch | |
GB461721A (en) | Improved smoke cowl | |
GB524680A (en) | Improvements in or relating to cooling towers | |
GB554759A (en) | Improvements in and relating to extractor ventilators | |
GB445337A (en) | Improvements in and relating to air-compressing injector apparatus | |
GB540656A (en) | Improvements in and relating to extractor ventilators | |
USD124647S (en) | Design for. an ice cream cone | |
GB664447A (en) | Improvements in or relating to a steam or vapour separator | |
ES359737A2 (en) | Machine for threshing tobacco leaves and separating the threshed tobacco | |
GB374703A (en) | Improvements to air actuated ventilators, chimney tops, and the like | |
GB665991A (en) | Improvements in or relating to liquid fuel burners | |
GB766872A (en) | Improvements in or relating to cowls for flues and ventilating ducts | |
GB372624A (en) | An improved air, gas or smoke extractor | |
GB492952A (en) | Improvements in and relating to pulley-blocks |