GB429544A - Improvements in screw propellers - Google Patents
Improvements in screw propellersInfo
- Publication number
- GB429544A GB429544A GB1299534A GB1299534A GB429544A GB 429544 A GB429544 A GB 429544A GB 1299534 A GB1299534 A GB 1299534A GB 1299534 A GB1299534 A GB 1299534A GB 429544 A GB429544 A GB 429544A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sections
- faces
- medial
- propeller blade
- screw propeller
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Screw Conveyors (AREA)
Abstract
429,544. Screw propellers. BARKER, A., 6, Handley Avenue, Thornleigh, near Sydney, Australia. April 30, 1934, No. 12995. [Class 114] A screw propeller blade in which the medial centre line has a constant pitch is formed with faces constituted by oblique helicoids equally disposed on either side of the the medial line so that the thickness increases from root to tip. The screw propeller blade is formed in sections 15, 17, 19, 20 with steps 16, 18, 22, the section of each being rhomboidal, the area of the maximum sections of each step being equal, and the faces such as 15, 15<a> diverging at an appreciable angle. The complete blade may be formed in three sections 81, 82, 83 contiguously disposed along the shaft. The ratio of pitch to diameter is 1À5708.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1299534A GB429544A (en) | 1934-04-30 | 1934-04-30 | Improvements in screw propellers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1299534A GB429544A (en) | 1934-04-30 | 1934-04-30 | Improvements in screw propellers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB429544A true GB429544A (en) | 1935-05-31 |
Family
ID=10014905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1299534A Expired GB429544A (en) | 1934-04-30 | 1934-04-30 | Improvements in screw propellers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB429544A (en) |
-
1934
- 1934-04-30 GB GB1299534A patent/GB429544A/en not_active Expired
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