GB193827A - Improvements relating to propellers, turbines and the like - Google Patents
Improvements relating to propellers, turbines and the likeInfo
- Publication number
- GB193827A GB193827A GB2574/23A GB257423A GB193827A GB 193827 A GB193827 A GB 193827A GB 2574/23 A GB2574/23 A GB 2574/23A GB 257423 A GB257423 A GB 257423A GB 193827 A GB193827 A GB 193827A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- blade
- propellers
- additional
- rotation
- 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
- B63H3/00—Propeller-blade pitch changing
- B63H3/008—Propeller-blade pitch changing characterised by self-adjusting pitch, e.g. by means of springs, centrifugal forces, hydrodynamic forces
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Control Of Turbines (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
193,827. Flettner, A. Feb. 23, 1922, [Convention date]. Screw and like propellers. -The blades of propellers and other rotors are mounted rotatably on axes substantially perpendicular to the axis of rotation of the rotor, and either intersecting it or not, and are. designed so that the centrifugal forces acting on the blades serve to adjust the angle which they make with the direction of flow of the fluid. Figs. 8, 10 and 11 show blades in which the axis of rotation does not pass through the centre of gravity of the blades. Fig. 13 shows a blade in which two stream-lined masses o<1>, o<2> are added. The blade t<4> shown in Fig. 14 is provided with an additional directive surface q, and may be provided with an additional mass such as m. The additional movable surface H, Fig. 19, is adjusted by centrifugal force acting on a mass m and through the hell-crank lever h and rod i and against the spring k. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which the blade t', Fig. 21 (Cancelled), adjusts its angle by moving radially under the action of centrifugal force on a threaded shaft z<1>. This subject-matter does not appear in the Specification as accepted.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE193827X | 1922-02-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB193827A true GB193827A (en) | 1924-03-20 |
Family
ID=5741132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2574/23A Expired GB193827A (en) | 1922-02-23 | 1923-01-27 | Improvements relating to propellers, turbines and the like |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB193827A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3260312A (en) * | 1963-10-01 | 1966-07-12 | Dowty Hydraulic Units Ltd | Bladed rotors |
| US4178127A (en) * | 1975-08-27 | 1979-12-11 | Zahorecz Zoltan P | Variable pitch impeller |
| US4316699A (en) * | 1979-08-24 | 1982-02-23 | Schott Lawrence A | Windmill structure and power generator |
| US4630997A (en) * | 1981-11-24 | 1986-12-23 | Fondation Cousteau | Apparatus for producing a force when in a moving fluid |
| GB2227286A (en) * | 1989-01-17 | 1990-07-25 | Howden Wind Turbines Limited | Control of a wind turbine and adjustable blade therefor |
| GB2316980A (en) * | 1996-09-03 | 1998-03-11 | Bernard William Vagg | Automatic propeller blade control |
| EP2258944A1 (en) * | 2008-01-29 | 2010-12-08 | Claus Colling | Control system for wind turbines |
-
1923
- 1923-01-27 GB GB2574/23A patent/GB193827A/en not_active Expired
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3260312A (en) * | 1963-10-01 | 1966-07-12 | Dowty Hydraulic Units Ltd | Bladed rotors |
| US4178127A (en) * | 1975-08-27 | 1979-12-11 | Zahorecz Zoltan P | Variable pitch impeller |
| US4316699A (en) * | 1979-08-24 | 1982-02-23 | Schott Lawrence A | Windmill structure and power generator |
| US4630997A (en) * | 1981-11-24 | 1986-12-23 | Fondation Cousteau | Apparatus for producing a force when in a moving fluid |
| GB2227286A (en) * | 1989-01-17 | 1990-07-25 | Howden Wind Turbines Limited | Control of a wind turbine and adjustable blade therefor |
| GB2316980A (en) * | 1996-09-03 | 1998-03-11 | Bernard William Vagg | Automatic propeller blade control |
| EP2258944A1 (en) * | 2008-01-29 | 2010-12-08 | Claus Colling | Control system for wind turbines |
| US8734104B2 (en) | 2008-01-29 | 2014-05-27 | Claus Colling | Control device and method for an aerodynamic brake of a wind energy converter |
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