GB476226A - Improvements in or relating to screw propeller devices - Google Patents
Improvements in or relating to screw propeller devicesInfo
- Publication number
- GB476226A GB476226A GB1548636A GB1548636A GB476226A GB 476226 A GB476226 A GB 476226A GB 1548636 A GB1548636 A GB 1548636A GB 1548636 A GB1548636 A GB 1548636A GB 476226 A GB476226 A GB 476226A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- screw propeller
- units
- relating
- propeller devices
- 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
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
- B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Hydraulic Turbines (AREA)
Abstract
476,226. Screw propellers. DEKKER, A. J. June 3, 1936, No. 15486. [Class 114] A screw propeller is composed of two units 2 and 3 rotated in opposite directions at different speeds so that the total reaction moment is zero. The blades 4 are formed with a double curvature longitudinally and transversely and are set at an angle of between 5-40‹. The leading edge and the tip are thickened, and the blades are set with a forward rake in the direction of rotation. The aggregate boss formed by members 1, 2, and 3 is of streamline form and the units are spaced a distance apart providing a maximum clearance between the blades of 20 per cent of the overall diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1548636A GB476226A (en) | 1936-06-03 | 1936-06-03 | Improvements in or relating to screw propeller devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB1548636A GB476226A (en) | 1936-06-03 | 1936-06-03 | Improvements in or relating to screw propeller devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB476226A true GB476226A (en) | 1937-12-03 |
Family
ID=10059975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1548636A Expired GB476226A (en) | 1936-06-03 | 1936-06-03 | Improvements in or relating to screw propeller devices |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB476226A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2288642A (en) * | 1994-04-19 | 1995-10-25 | David Johnston Burns | Air driven generator |
| CN111470052A (en) * | 2020-05-31 | 2020-07-31 | 陈泽进 | Planetary gear paddle fan combined engine device |
-
1936
- 1936-06-03 GB GB1548636A patent/GB476226A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2288642A (en) * | 1994-04-19 | 1995-10-25 | David Johnston Burns | Air driven generator |
| GB2288642B (en) * | 1994-04-19 | 1997-12-10 | David Johnston Burns | Electrical power generation apparatus and an electrical vehicle including such apparatus |
| US5760515A (en) * | 1994-04-19 | 1998-06-02 | Burns; David Johnston | Electrical power generating apparatus and an electrical vehicle including such apparatus |
| CN111470052A (en) * | 2020-05-31 | 2020-07-31 | 陈泽进 | Planetary gear paddle fan combined engine device |
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