GB226853A - Improvements in and relating to screw propellers and tractors - Google Patents
Improvements in and relating to screw propellers and tractorsInfo
- Publication number
- GB226853A GB226853A GB21980/23A GB2198023A GB226853A GB 226853 A GB226853 A GB 226853A GB 21980/23 A GB21980/23 A GB 21980/23A GB 2198023 A GB2198023 A GB 2198023A GB 226853 A GB226853 A GB 226853A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- tips
- arms
- supported
- screw propellers
- 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
- B63H1/26—Blades
-
- 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
-
- 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
- B64C11/02—Hub construction
- B64C11/04—Blade mountings
- B64C11/08—Blade mountings for non-adjustable blades
- B64C11/10—Blade mountings for non-adjustable blades rigid
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Toys (AREA)
Abstract
226,853. Evans, E., and Williams, G. M. Aug. 31, 1923. Screw propellers.-A screw propeller or tractor for marine or aerial propulsion has two or more blades of the form of a time helix having an outer circumferential angle with respect to the axis of rotation of practically 45‹. The blades a may be of sheet metal and are each connected to a boss b by an arm b<1> formed by casting or from angle iron. The section of the blades may be rectangular or may be of the nature of a flattened oval. and the tips of the blades which may be cast integrally with the arms may be provided with lateral projections. According to the Provisional Specification each blade may be supported by two or more arms, or the blades may be supported by two or more rings or spiders arranged at intervals along the shaft, and their tips or outer edges may be provided with lateral projections.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21980/23A GB226853A (en) | 1923-08-31 | 1923-08-31 | Improvements in and relating to screw propellers and tractors |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB21980/23A GB226853A (en) | 1923-08-31 | 1923-08-31 | Improvements in and relating to screw propellers and tractors |
Publications (1)
Publication Number | Publication Date |
---|---|
GB226853A true GB226853A (en) | 1924-12-31 |
Family
ID=10171965
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB21980/23A Expired GB226853A (en) | 1923-08-31 | 1923-08-31 | Improvements in and relating to screw propellers and tractors |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB226853A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2416568A (en) * | 2004-07-24 | 2006-02-01 | Rolls Royce Plc | Aerofoil with support member |
-
1923
- 1923-08-31 GB GB21980/23A patent/GB226853A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2416568A (en) * | 2004-07-24 | 2006-02-01 | Rolls Royce Plc | Aerofoil with support member |
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