GB575470A - Improvements in impellers for screw fans - Google Patents
Improvements in impellers for screw fansInfo
- Publication number
- GB575470A GB575470A GB525844A GB525844A GB575470A GB 575470 A GB575470 A GB 575470A GB 525844 A GB525844 A GB 525844A GB 525844 A GB525844 A GB 525844A GB 575470 A GB575470 A GB 575470A
- Authority
- GB
- United Kingdom
- Prior art keywords
- discs
- flanges
- bush
- rim
- welded
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
- F04D29/329—Details of the hub
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
575,470. Screw fans and propellers. COLLIERY ENGINEERING, Ltd., and REEVES, H. C. March 21, 1944, Neo. 5258. [Class 110 (i) [Also in Group XXXIII] The hub of a screw far impeller comprises a pair of annular sheet metal discs c secured to a central metal bush o and united at the periphery by a segmentally-spherical sheet metal rim, forming a hollow drum to which the blades e are secured. In the form shown the rim is formed by flanges c' of the discs c which are welded together and to a ring d ; the ring d may be replaced by a joggled part of one of the flanges c<1>. In an alternative form, the rim is formed separately and riveted or welded to flanges on the discs c, and according to the Provisional Specification may extend slightly beyond the discs. The discs are preferably given a divergent form, as shown, and welded to flanges b on the bush a. According to the Provisional Specification the discs may be connected together and to the flanges b on the bush by long axial bolts instead of by welding, and the hub may be stiffened by internal struts. Specification 565,262 is referred to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB525844A GB575470A (en) | 1944-03-21 | 1944-03-21 | Improvements in impellers for screw fans |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB525844A GB575470A (en) | 1944-03-21 | 1944-03-21 | Improvements in impellers for screw fans |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB575470A true GB575470A (en) | 1946-02-19 |
Family
ID=9792699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB525844A Expired GB575470A (en) | 1944-03-21 | 1944-03-21 | Improvements in impellers for screw fans |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB575470A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0104544A1 (en) * | 1982-09-27 | 1984-04-04 | Siemens Aktiengesellschaft | Axial flow wheel, in particular for axial flow fans |
| GB2144077A (en) * | 1983-07-26 | 1985-02-27 | Corrugated Prod Ltd | Improvement in or related to corrugated products |
-
1944
- 1944-03-21 GB GB525844A patent/GB575470A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0104544A1 (en) * | 1982-09-27 | 1984-04-04 | Siemens Aktiengesellschaft | Axial flow wheel, in particular for axial flow fans |
| GB2144077A (en) * | 1983-07-26 | 1985-02-27 | Corrugated Prod Ltd | Improvement in or related to corrugated products |
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