GB548414A - Improvements in and relating to airscrews - Google Patents
Improvements in and relating to airscrewsInfo
- Publication number
- GB548414A GB548414A GB1173540A GB1173540A GB548414A GB 548414 A GB548414 A GB 548414A GB 1173540 A GB1173540 A GB 1173540A GB 1173540 A GB1173540 A GB 1173540A GB 548414 A GB548414 A GB 548414A
- Authority
- GB
- United Kingdom
- Prior art keywords
- channel
- edge
- steel
- blades
- secured
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/16—Blades
- B64C11/20—Constructional features
- B64C11/205—Constructional features for protecting blades, e.g. coating
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
548,414. Airscrews. ROTOL AIRSCREWS, Ltd., CHARLES, H. N., and NEWPORT, H. July 15, 1940, No. 11735. [Class 114] In an airscrew in which the blades are made of comparatively soft material such as wood, the leading edges of the blades are reinforced by a mild steel or like metal backing provided with a sharp cutting edge of very hard steel. Fig. 2 shows a thin sheet steel channel 12 shaped internally to fit the edge 11 and the two faces of the blades 10 to which it is secured by recessed wood screws 13. The heads of the screws are soldered over to render them water tight, and the edges 17 of the channel also are sealed. A deposit 15 of steel is secured to the base 14 of the channel 12 by a welding process, and to this deposit is welded a strip 16 of hard steel with a sharp cutting edge. The channel may be recessed into the surface of the blade and secured thereto by solid or hollow rivets, whilst the base of the channel may be apertured to provide a key for the metal 15. Fig. 4 shows a hard steel edge 24 and backing 25 welded to a metal strip 26 inset in the leading edge of the blade. The backing 25 may be omitted. The reinforcing edge may be in short sections or in a continuous length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1173540A GB548414A (en) | 1940-07-15 | 1940-07-15 | Improvements in and relating to airscrews |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1173540A GB548414A (en) | 1940-07-15 | 1940-07-15 | Improvements in and relating to airscrews |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB548414A true GB548414A (en) | 1942-10-09 |
Family
ID=9991707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1173540A Expired GB548414A (en) | 1940-07-15 | 1940-07-15 | Improvements in and relating to airscrews |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB548414A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161056A (en) * | 1977-08-05 | 1979-07-17 | P.R.K., Inc. | Method and device for repairing damaged screw propellers |
| US4738594A (en) * | 1986-02-05 | 1988-04-19 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Blades for axial fans |
| GB2365078A (en) * | 2000-07-27 | 2002-02-13 | Rolls Royce Plc | Hard leading edge of gas turbine blade or vane |
| EP1895165A1 (en) * | 2006-08-25 | 2008-03-05 | Sanyo Electric Co., Ltd. | Axial fan and design method for the same |
| GB2482247A (en) * | 2010-07-23 | 2012-01-25 | Gen Electric | Metallic sheath |
-
1940
- 1940-07-15 GB GB1173540A patent/GB548414A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4161056A (en) * | 1977-08-05 | 1979-07-17 | P.R.K., Inc. | Method and device for repairing damaged screw propellers |
| US4738594A (en) * | 1986-02-05 | 1988-04-19 | Ishikawajima-Harima Jukogyo Kabushiki Kaisha | Blades for axial fans |
| GB2365078A (en) * | 2000-07-27 | 2002-02-13 | Rolls Royce Plc | Hard leading edge of gas turbine blade or vane |
| US6524074B2 (en) | 2000-07-27 | 2003-02-25 | Rolls-Royce Plc | Gas turbine engine blade |
| GB2365078B (en) * | 2000-07-27 | 2004-04-21 | Rolls Royce Plc | A gas turbine engine blade |
| EP1895165A1 (en) * | 2006-08-25 | 2008-03-05 | Sanyo Electric Co., Ltd. | Axial fan and design method for the same |
| US8038406B2 (en) | 2006-08-25 | 2011-10-18 | Sanyo Electric Co., Ltd. | Axial fan and blade design method for the same |
| GB2482247A (en) * | 2010-07-23 | 2012-01-25 | Gen Electric | Metallic sheath |
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