GB473372A - An improved screw propeller - Google Patents
An improved screw propellerInfo
- Publication number
- GB473372A GB473372A GB17562/36A GB1756236A GB473372A GB 473372 A GB473372 A GB 473372A GB 17562/36 A GB17562/36 A GB 17562/36A GB 1756236 A GB1756236 A GB 1756236A GB 473372 A GB473372 A GB 473372A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blade
- maximum
- bent over
- edge
- width
- 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
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/28—Other means for improving propeller efficiency
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/26—Blades
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
473,372. Screw propellers. McLEOD, G. H. June 24, 1936, No. 17562. Convention date, July 10, 1935. [Class 114] Each blade of a screw propeller is provided at its outer end with at least one extension which is bent over with respect to the adjoining tip portion of the blade and tapers in width radially of the surface from zero on the leading edge to a maximum at the following edge such maximum being not less than one quarter of the width of the main part of the blade. Blades 1 are provided with bent over portions 9 at the tip 4. These portions have an outer edge 8 shaped so that the dimension is zero at the leading edge 6 and increases gradually to a maximum at the following edge 7. The radial cross sections of this extension have concave or convex surfaces of graded radius as indicated in Fig. 4. As an alternative each tip may be provided with two bent over portions, Fig. 5, oppositely disposed and the second member has its width variations opposition to that of the first one.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NZ473372X | 1935-07-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB473372A true GB473372A (en) | 1937-10-12 |
Family
ID=19915829
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB17562/36A Expired GB473372A (en) | 1935-07-10 | 1936-06-24 | An improved screw propeller |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB473372A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2139294A (en) * | 1983-02-18 | 1984-11-07 | Pioneer Dharma Ventures Limite | Omni-directional rotor |
| GB2198190A (en) * | 1986-11-28 | 1988-06-08 | Frank L Cook | Air turbulence blades for ceiling fans |
| CN106732273A (en) * | 2016-12-26 | 2017-05-31 | 江苏新宏大集团有限公司 | A kind of half water law phosphoric acid special agitating apparatus |
-
1936
- 1936-06-24 GB GB17562/36A patent/GB473372A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2139294A (en) * | 1983-02-18 | 1984-11-07 | Pioneer Dharma Ventures Limite | Omni-directional rotor |
| GB2198190A (en) * | 1986-11-28 | 1988-06-08 | Frank L Cook | Air turbulence blades for ceiling fans |
| CN106732273A (en) * | 2016-12-26 | 2017-05-31 | 江苏新宏大集团有限公司 | A kind of half water law phosphoric acid special agitating apparatus |
| CN106732273B (en) * | 2016-12-26 | 2024-05-24 | 江苏新宏大集团有限公司 | Special agitating unit of semi-water process phosphoric acid |
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