GB171902A - Improvements in propellers for ships and boats - Google Patents
Improvements in propellers for ships and boatsInfo
- Publication number
- GB171902A GB171902A GB33302/20A GB3330220A GB171902A GB 171902 A GB171902 A GB 171902A GB 33302/20 A GB33302/20 A GB 33302/20A GB 3330220 A GB3330220 A GB 3330220A GB 171902 A GB171902 A GB 171902A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boss
- leading edges
- tangential
- blades
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
171,902. Prescott, S. J., and Nosworthy, W. H. Nov. 25, 1920. Screw propellers.-The blades of a screw propeller are flat or slightly concave, taper toward the tip, have a small inclination to a radial setting, and the leading edges are tangential to the boss and overlap at the boss, the trailing edge of the adjacent blade. The leading edges e of blades b are tangential to the boss a. The trailing edges f are curved so that the maximum width of blade is at one-third of the length from the boss, and at the boss overlap in end view the leading edges. The driving-face is flat or slightly curved as shown at c, Fig. 3, and is set not quite perpendicular to the boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB33302/20A GB171902A (en) | 1920-11-25 | 1920-11-25 | Improvements in propellers for ships and boats |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB33302/20A GB171902A (en) | 1920-11-25 | 1920-11-25 | Improvements in propellers for ships and boats |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB171902A true GB171902A (en) | 1921-12-01 |
Family
ID=10351170
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB33302/20A Expired GB171902A (en) | 1920-11-25 | 1920-11-25 | Improvements in propellers for ships and boats |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB171902A (en) |
-
1920
- 1920-11-25 GB GB33302/20A patent/GB171902A/en not_active Expired
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