GB215130A - Improvements in screw propellers - Google Patents
Improvements in screw propellersInfo
- Publication number
- GB215130A GB215130A GB458323A GB458323A GB215130A GB 215130 A GB215130 A GB 215130A GB 458323 A GB458323 A GB 458323A GB 458323 A GB458323 A GB 458323A GB 215130 A GB215130 A GB 215130A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- edges
- blades
- channel
- laminations
- 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
- B64C11/24—Hollow blades
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
215,130. Leitner, H. Feb. 16, 1923. Screw propellers.-Hollow metal screw propeller blades are stiffened by channel strips extending longitudinally of the blades. Each blade is built up of laminations a, b, c, Fig. 1, formed with a circular stem d, and is stiffened by two channel members, the flanges of which are in contact with the inner surfaces of the blade and are riveted thereto by rivets j, or are welded or otherwise secured thereto. The webs of the channels are flat for the major part of the length, but change to circular form at the stem. The channels are stepped at positions corresponding to the edges of the laminations b, c. In the modification, Fig. 18, the lamina b is extended at l and its edges m turned in to form the channel stiffener. The lamina c is similarly extended at n and fits in the extension l. In addition, the edges of the laminµ b, c may be flanged over as at p. When the blade is made from single sheets of tapered thickness, a separate channel stiffener is used in place of the extensions l, n. Supplementary stiffeners set across the blades may also be provided.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB458323A GB215130A (en) | 1923-02-16 | 1923-02-16 | Improvements in screw propellers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB458323A GB215130A (en) | 1923-02-16 | 1923-02-16 | Improvements in screw propellers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB215130A true GB215130A (en) | 1924-05-08 |
Family
ID=9779893
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB458323A Expired GB215130A (en) | 1923-02-16 | 1923-02-16 | Improvements in screw propellers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB215130A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458975A (en) * | 1943-12-09 | 1949-01-11 | Curtiss Wright Corp | Rib reinforcing means for propeller blades |
DE1111949B (en) * | 1958-09-08 | 1961-07-27 | Propellerbau Ges Haw & Co Deut | Helical wing with pulling element lying in the wing and relieved outer skin |
GB2289089A (en) * | 1994-04-28 | 1995-11-08 | Tygar Co Ltd | Fan blade |
GB2296743A (en) * | 1995-01-06 | 1996-07-10 | Huang Yung Chung | Fan |
-
1923
- 1923-02-16 GB GB458323A patent/GB215130A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2458975A (en) * | 1943-12-09 | 1949-01-11 | Curtiss Wright Corp | Rib reinforcing means for propeller blades |
DE1111949B (en) * | 1958-09-08 | 1961-07-27 | Propellerbau Ges Haw & Co Deut | Helical wing with pulling element lying in the wing and relieved outer skin |
GB2289089A (en) * | 1994-04-28 | 1995-11-08 | Tygar Co Ltd | Fan blade |
GB2289089B (en) * | 1994-04-28 | 1997-10-08 | Tygar Co Ltd | Fan blade |
GB2296743A (en) * | 1995-01-06 | 1996-07-10 | Huang Yung Chung | Fan |
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