GB878852A - Improvements in or relating to screw propellers - Google Patents
Improvements in or relating to screw propellersInfo
- Publication number
- GB878852A GB878852A GB1025059A GB1025059A GB878852A GB 878852 A GB878852 A GB 878852A GB 1025059 A GB1025059 A GB 1025059A GB 1025059 A GB1025059 A GB 1025059A GB 878852 A GB878852 A GB 878852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hub
- sleeve
- blades
- march
- freedom
- 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
- B63H1/20—Hubs; Blade connections
- B63H1/22—Hubs; Blade connections the blades being foldable
- B63H1/24—Hubs; Blade connections the blades being foldable automatically foldable or unfoldable
Abstract
878,852. Marine propellers. BAMFORD & CO. Ltd., F. March 16, 1960 [March 24, 1959], No. 10250/59. Class 114. A screw propeller has blades 20 pivoted at 21 upon a sleeve 16 which embraces the hub 10 and has a limited freedom of angular movement in relation thereto, the blades in one extreme position of the sleeve, Figs. 1 and 3, being fully locked by abutment of angular root portions 27 thereof with the cylindrical exterior 11 of the hub 10, whereas in the other extreme sleeve position, Figs. 4 and 5, the root portions 27 are presented to flats or recesses 28 in the hub which permit free folding of the blades rearwardly towards the axis of the hub. The freedom of angular movement of the sleeve 16 relative to the hub 10 is limited by at least one radial dog 23, on the forward end of the hub engaging in an angularly-wider recess cut in the corresponding end of the sleeve.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1025059A GB878852A (en) | 1959-03-24 | 1959-03-24 | Improvements in or relating to screw propellers |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1025059A GB878852A (en) | 1959-03-24 | 1959-03-24 | Improvements in or relating to screw propellers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB878852A true GB878852A (en) | 1961-10-04 |
Family
ID=9964405
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1025059A Expired GB878852A (en) | 1959-03-24 | 1959-03-24 | Improvements in or relating to screw propellers |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB878852A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255826A (en) * | 1964-10-12 | 1966-06-14 | Aerolab Dev Co | Boat propeller |
JPS5038286A (en) * | 1974-07-10 | 1975-04-09 | ||
JPS514097U (en) * | 1974-06-24 | 1976-01-13 | ||
DE2551570A1 (en) * | 1974-11-20 | 1976-05-26 | Gori Vaerk As | PROPELLER |
FR2321592A1 (en) * | 1975-08-22 | 1977-03-18 | Astrand Sven | PROPELLER WITH RETRACTABLE BLADES |
US4242049A (en) * | 1978-02-06 | 1980-12-30 | Hasselfors Stainless Ab | Foldable propeller |
FR2473462A1 (en) * | 1980-01-16 | 1981-07-17 | Volvo Penta Ab | FOLDING BOAT PROPELLER |
US5203675A (en) * | 1990-09-19 | 1993-04-20 | Santa Caterina Di Brena Ada & C. S.A.S. | Variable-pitch propeller having feathering blades |
US5372480A (en) * | 1993-09-22 | 1994-12-13 | Van Meter; John L. | Replaceable and foldable blade boat propeller |
CN107985585A (en) * | 2017-12-27 | 2018-05-04 | 深圳市道通智能航空技术有限公司 | A kind of propeller, Power Component and unmanned plane |
-
1959
- 1959-03-24 GB GB1025059A patent/GB878852A/en not_active Expired
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3255826A (en) * | 1964-10-12 | 1966-06-14 | Aerolab Dev Co | Boat propeller |
JPS514097U (en) * | 1974-06-24 | 1976-01-13 | ||
JPS5038286A (en) * | 1974-07-10 | 1975-04-09 | ||
DE2551570A1 (en) * | 1974-11-20 | 1976-05-26 | Gori Vaerk As | PROPELLER |
FR2321592A1 (en) * | 1975-08-22 | 1977-03-18 | Astrand Sven | PROPELLER WITH RETRACTABLE BLADES |
US4086025A (en) * | 1975-08-22 | 1978-04-25 | Astrand S I | Propellers with retractable blades |
US4242049A (en) * | 1978-02-06 | 1980-12-30 | Hasselfors Stainless Ab | Foldable propeller |
FR2473462A1 (en) * | 1980-01-16 | 1981-07-17 | Volvo Penta Ab | FOLDING BOAT PROPELLER |
US4364711A (en) * | 1980-01-16 | 1982-12-21 | Ab Volvo Penta | Folding boat propeller |
US5203675A (en) * | 1990-09-19 | 1993-04-20 | Santa Caterina Di Brena Ada & C. S.A.S. | Variable-pitch propeller having feathering blades |
US5372480A (en) * | 1993-09-22 | 1994-12-13 | Van Meter; John L. | Replaceable and foldable blade boat propeller |
CN107985585A (en) * | 2017-12-27 | 2018-05-04 | 深圳市道通智能航空技术有限公司 | A kind of propeller, Power Component and unmanned plane |
CN107985585B (en) * | 2017-12-27 | 2024-01-19 | 深圳市道通智能航空技术股份有限公司 | Screw, power component and unmanned aerial vehicle |
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