GB176568A - Improvements in reversible screw propellers - Google Patents
Improvements in reversible screw propellersInfo
- Publication number
- GB176568A GB176568A GB36640/20A GB3664020A GB176568A GB 176568 A GB176568 A GB 176568A GB 36640/20 A GB36640/20 A GB 36640/20A GB 3664020 A GB3664020 A GB 3664020A GB 176568 A GB176568 A GB 176568A
- Authority
- GB
- United Kingdom
- Prior art keywords
- bevel
- rod
- shaft
- screwed
- blade
- 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
- B63H3/00—Propeller-blade pitch changing
- B63H3/02—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Screw Conveyors (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
176,568. Duerr, E. Dec. 31, 1920. Scrcw propellers.-In a variable-pitch propeller each blade has a bevel-wheel at its root which gears with two bevel-wheels keyed to a rod with right and left hand spiral keyways, pitch alteration being effected by longitudinal movement of the rod. The boss is in three parts, a forward portion a attached to the hollow driving-shaft b, a middle portion c screwed to a and carrying the blades, and a tail-piece e screwed to the part c. A central solid rod f turns with the power shaft by reason of its connection through a cross-head m with rods o passing through the collar k. The rods o are attached to a collar n which can be slidden on the shaft b. The rod f has right and left hand spiral keyways g to which are keyed bevel-wheels h, i. The latter engage a bevelwheel j screwed and pinned to the shank of each blade d. The blade shaft is supported in the boss on both sides of the bevel-wheel j.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL9989D NL9989C (en) | 1920-12-31 | ||
GB36640/20A GB176568A (en) | 1920-12-31 | 1920-12-31 | Improvements in reversible screw propellers |
DE1921D0040647 DE367194C (en) | 1920-12-31 | 1921-11-09 | Rotary wing screw, especially for watercraft |
US515063A US1431382A (en) | 1920-12-31 | 1921-11-14 | Reversible screw propeller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB36640/20A GB176568A (en) | 1920-12-31 | 1920-12-31 | Improvements in reversible screw propellers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB176568A true GB176568A (en) | 1922-03-16 |
Family
ID=33495813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB36640/20A Expired GB176568A (en) | 1920-12-31 | 1920-12-31 | Improvements in reversible screw propellers |
Country Status (4)
Country | Link |
---|---|
US (1) | US1431382A (en) |
DE (1) | DE367194C (en) |
GB (1) | GB176568A (en) |
NL (1) | NL9989C (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2573764A (en) * | 1947-06-07 | 1951-11-06 | Carl J Green | Variable pitch propeller |
-
0
- NL NL9989D patent/NL9989C/xx active
-
1920
- 1920-12-31 GB GB36640/20A patent/GB176568A/en not_active Expired
-
1921
- 1921-11-09 DE DE1921D0040647 patent/DE367194C/en not_active Expired
- 1921-11-14 US US515063A patent/US1431382A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE367194C (en) | 1923-01-18 |
NL9989C (en) | |
US1431382A (en) | 1922-10-10 |
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