GB550354A - Variable pitch co-axial airscrews - Google Patents
Variable pitch co-axial airscrewsInfo
- Publication number
- GB550354A GB550354A GB659941A GB659941A GB550354A GB 550354 A GB550354 A GB 550354A GB 659941 A GB659941 A GB 659941A GB 659941 A GB659941 A GB 659941A GB 550354 A GB550354 A GB 550354A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pinions
- gear
- pitch
- mesh
- airscrews
- 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
- B64C11/306—Blade pitch-changing mechanisms specially adapted for contrarotating propellers
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transmission Devices (AREA)
- Retarders (AREA)
Abstract
550,354. Variable-pitch airscrews. JACKSON, O. C., and JACKSON, M. May 23, 1941. Nos. 6599 and 12216. [Class 114] In variable-pitch co-axial, counter rorotating airscrews, the pitch of the front screw A is varied by worm, &c. gearing carried thereby and operated by a central gear 5 which is between the screws and is integral with a gear 2 in train with pinions 1 carried by the rear screw B. The pinions 1 are mounted on shafts with pinions 3 in mesh with a normally stationary control gear 4 integral with a gear 7 engaged by a control pinion 22. The gear ratio of the train 1, 2, 3, 4 is 1 : 2 the pitch of the rear screw B is varied by worms b on the shafts of which are pinions 8 in mesh with a central gear 9 integral with a planet carrier 10 having planet pinions 11 in mesh with a central idler 13 and with a normally stationary ring gear 12 engaged by a second control pinion 17. A second set of planet pinions 14 carried by a spider 15 secured to the rear airscrew is in mesh with the idler 13, and with a fixed ring gear 16. By operating the pinions 22, 17, through motors, either separately or conjointly, the pitches of the propellers may be similarly varied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB659941A GB550354A (en) | 1941-05-23 | 1941-05-23 | Variable pitch co-axial airscrews |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB659941A GB550354A (en) | 1941-05-23 | 1941-05-23 | Variable pitch co-axial airscrews |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB550354A true GB550354A (en) | 1943-01-05 |
Family
ID=9817415
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB659941A Expired GB550354A (en) | 1941-05-23 | 1941-05-23 | Variable pitch co-axial airscrews |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB550354A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2421514A (en) * | 1943-08-19 | 1947-06-03 | Gen Motors Corp | Dual rotation propeller |
| US2523651A (en) * | 1945-09-26 | 1950-09-26 | Doussain Robert | Propelling means |
| US2687181A (en) * | 1950-12-01 | 1954-08-24 | Curtiss Wright Corp | Variable pitch coaxial propeller |
-
1941
- 1941-05-23 GB GB659941A patent/GB550354A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2421514A (en) * | 1943-08-19 | 1947-06-03 | Gen Motors Corp | Dual rotation propeller |
| US2523651A (en) * | 1945-09-26 | 1950-09-26 | Doussain Robert | Propelling means |
| US2687181A (en) * | 1950-12-01 | 1954-08-24 | Curtiss Wright Corp | Variable pitch coaxial propeller |
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