GB272578A - Improvements in screw propellers - Google Patents
Improvements in screw propellersInfo
- Publication number
- GB272578A GB272578A GB650826A GB650826A GB272578A GB 272578 A GB272578 A GB 272578A GB 650826 A GB650826 A GB 650826A GB 650826 A GB650826 A GB 650826A GB 272578 A GB272578 A GB 272578A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blades
- lever
- boss
- twisted
- disc
- 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
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/30—Blade pitch-changing mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Catching Or Destruction (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
272,578. Dutton, T. M. March 9, 1926. Screw propellers.-In airscrews of the type wherein the blades form tension members between the boss and an outer rim, the, blades are fixed at one end and are rotatable at the other for varying the pitch. Tangential lugs 5 on the boss 3 receive the ends 8 of aerofoil-sectioned blades 6 the outer ends of which are fixed in an outer rim 20 where a spring washer is employed to allow for differences in the lengths of the blades when twisted. A square. 9 on the roots 8 receives a lever 10 which is coupled by a lever 11 to a pivoted lever 12, the end 13 of which rests in a grooved flange of the disc 14 which can be slid on the boss by a lever system 17 whereby the blades are twisted to the desired pitch. For fine adjustments, the lever is moved bv the screw gear 18. When a rotary engine is associated with the propeller, the disc 14 is displaced by a number of rods passing between the cylinders. A second set of blades 19 axially displaced with reference to the blades 6 is employed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB650826A GB272578A (en) | 1926-03-09 | 1926-03-09 | Improvements in screw propellers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB650826A GB272578A (en) | 1926-03-09 | 1926-03-09 | Improvements in screw propellers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB272578A true GB272578A (en) | 1927-06-09 |
Family
ID=9815789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB650826A Expired GB272578A (en) | 1926-03-09 | 1926-03-09 | Improvements in screw propellers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB272578A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2475121A (en) * | 1943-10-09 | 1949-07-05 | Harold T Avery | Airscrew |
| US2484099A (en) * | 1946-10-05 | 1949-10-11 | Alvern E Koeppe | Aircraft rotor and control thereof |
| US2584663A (en) * | 1946-06-27 | 1952-02-05 | Gen Electric | Variable warp airfoil |
| EP3666643A1 (en) * | 2018-12-13 | 2020-06-17 | Hamilton Sundstrand Corporation | Propeller system |
-
1926
- 1926-03-09 GB GB650826A patent/GB272578A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2475121A (en) * | 1943-10-09 | 1949-07-05 | Harold T Avery | Airscrew |
| US2584663A (en) * | 1946-06-27 | 1952-02-05 | Gen Electric | Variable warp airfoil |
| US2484099A (en) * | 1946-10-05 | 1949-10-11 | Alvern E Koeppe | Aircraft rotor and control thereof |
| EP3666643A1 (en) * | 2018-12-13 | 2020-06-17 | Hamilton Sundstrand Corporation | Propeller system |
| US11338906B2 (en) | 2018-12-13 | 2022-05-24 | Hamilton Sundstrand Corporation | Propeller system |
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