GB291906A - Improvements in or relating to screw propellers - Google Patents
Improvements in or relating to screw propellersInfo
- Publication number
- GB291906A GB291906A GB766427A GB766427A GB291906A GB 291906 A GB291906 A GB 291906A GB 766427 A GB766427 A GB 766427A GB 766427 A GB766427 A GB 766427A GB 291906 A GB291906 A GB 291906A
- Authority
- GB
- United Kingdom
- Prior art keywords
- socket
- nut
- threads
- different pitch
- 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
- 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
- B64C11/06—Blade mountings for variable-pitch blades
- B64C11/065—Blade mountings for variable-pitch blades variable only when stationary
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
291,906. Fairey, C. R. March 19, 1927. Screw propellers. - The blades of screw propellers have roots of circular crosssection adapted to fit within boss sockets and be angularly adjustable therein, the blade being secured by a nut with threads of different pitch which engage the root and socket and co-operate to have a differential action. The blades 17, Fig. 1, have roots of circular cross-section, the portion 19 being conical around which is fitted a split collar 20 having a keyway 21 with sliding fit on a key 22 fixed to the portion 19 and also having an external thread 23. The socket 14 has an external thread 16 of the same hand but different pitch from the thread 23, and a nut 24 engages both threads and draws the shank firmly into the socket. The nut may be locked by set screws 25 which are held by a wire 26. In a modification, a nut 34, Fig. 4, has internal and external threads of different pitch which engage threads on the blade shank 29 and socket 31.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB766427A GB291906A (en) | 1927-03-19 | 1927-03-19 | Improvements in or relating to screw propellers |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB766427A GB291906A (en) | 1927-03-19 | 1927-03-19 | Improvements in or relating to screw propellers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB291906A true GB291906A (en) | 1928-06-14 |
Family
ID=9837432
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB766427A Expired GB291906A (en) | 1927-03-19 | 1927-03-19 | Improvements in or relating to screw propellers |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB291906A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2796367A1 (en) * | 2013-04-22 | 2014-10-29 | Rolls-Royce plc | Propeller blade retention |
-
1927
- 1927-03-19 GB GB766427A patent/GB291906A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2796367A1 (en) * | 2013-04-22 | 2014-10-29 | Rolls-Royce plc | Propeller blade retention |
| US9809299B2 (en) | 2013-04-22 | 2017-11-07 | Rolls-Royce Plc | Propeller blade retention |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB496988A (en) | Instrument for extracting roots of teeth | |
| GB231155A (en) | Improvements in wood screws | |
| GB367265A (en) | Improvements in or relating to the rotors of axial flow pumps and the like | |
| GB291906A (en) | Improvements in or relating to screw propellers | |
| GB498308A (en) | Improvements in locking devices for nuts, screws or other threaded members | |
| GB546510A (en) | Improvements in or relating to propeller blade supports | |
| GB515929A (en) | Improvements in nuts | |
| GB176842A (en) | Improvements in propellers and fans | |
| GB704882A (en) | Improvements in and relating to the securing of blading to turbine wheels and other high speed rotary members | |
| GB529278A (en) | Improvements in or relating to spades or shovels | |
| US2111178A (en) | Propeller | |
| GB516044A (en) | Improvements in and relating to self-locking nuts | |
| GB267179A (en) | Improvements in variable pitch airscrews | |
| DE855603C (en) | Axial fan for inductors of rapidly rotating turbo generators of high performance | |
| GB561627A (en) | Improvements in or relating to nuts, metal sockets, bushes and the like | |
| GB512152A (en) | Improved fastening for wooden air screw blades | |
| GB551236A (en) | Improvements in or relating to airscrew blades | |
| GB473372A (en) | An improved screw propeller | |
| GB526543A (en) | Method of and means for attaching sockets to airscrew blades | |
| GB289011A (en) | Improvements in lock nuts | |
| GB506374A (en) | Improvements relating to variable-pitch airscrews | |
| GB482585A (en) | An improved method of securing the shank ends of articles made of wood or other fibrous material in metal sockets | |
| GB489400A (en) | Improvements relating to the securing of airscrew blades | |
| GB326050A (en) | Improvements in and connected with nuts for bolts | |
| GB256486A (en) | Improvements in and relating to propellors and tractors |