GB190912846A - An Improved Propeller for Ships, Boats, Flying Machines and the like. - Google Patents
An Improved Propeller for Ships, Boats, Flying Machines and the like.Info
- Publication number
- GB190912846A GB190912846A GB190912846DA GB190912846A GB 190912846 A GB190912846 A GB 190912846A GB 190912846D A GB190912846D A GB 190912846DA GB 190912846 A GB190912846 A GB 190912846A
- Authority
- GB
- United Kingdom
- Prior art keywords
- boats
- ships
- edge
- flying machines
- blades
- 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
- B63H1/28—Other means for improving propeller efficiency
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H3/00—Propeller-blade pitch changing
- B63H3/008—Propeller-blade pitch changing characterised by self-adjusting pitch, e.g. by means of springs, centrifugal forces, hydrodynamic forces
-
- 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
- B64C11/08—Blade mountings for non-adjustable blades
- B64C11/12—Blade mountings for non-adjustable blades flexible
-
- 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
- B64C11/16—Blades
- B64C11/18—Aerodynamic features
-
- 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
- B64C11/32—Blade pitch-changing mechanisms mechanical
- B64C11/34—Blade pitch-changing mechanisms mechanical automatic
- B64C11/343—Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on the blades
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C2230/00—Boundary layer controls
- B64C2230/28—Boundary layer controls at propeller or rotor blades
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/10—Drag reduction
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T50/00—Aeronautics or air transport
- Y02T50/60—Efficient propulsion technologies, e.g. for aircraft
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Aviation & Aerospace Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Ocean & Marine Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
12,846. Cochrane, W. June 1. No Patent granted (Sealing fee not paid). Screw propellers.-The blades are corrugated on their driving face and stiffened by a strip of wood or metal c which follows the line of the leading edge. This edge d is thickened and curved as shown in Fig. 2 and further strengthened by doubling the edge of the back face plate over the leading edge. One half of the back of the blade is preferably left smooth. The corrugations are sloped at an angle between 45 and 65 degrees, and the blades are designed so that they will yield to the resistance of the fluid.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB190912846T | 1909-06-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB190912846A true GB190912846A (en) | 1910-04-21 |
Family
ID=32555183
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB190912846D Expired GB190912846A (en) | 1909-06-01 | 1909-06-01 | An Improved Propeller for Ships, Boats, Flying Machines and the like. |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB190912846A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2454040A (en) * | 1944-07-07 | 1948-11-16 | Gen Electric | Aircraft propeller |
US3728043A (en) * | 1972-01-12 | 1973-04-17 | Fram Corp | Flexible blade fan with ribbed blades |
US4025231A (en) * | 1975-11-26 | 1977-05-24 | Revcor, Inc. | Propeller fan construction |
-
1909
- 1909-06-01 GB GB190912846D patent/GB190912846A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2454040A (en) * | 1944-07-07 | 1948-11-16 | Gen Electric | Aircraft propeller |
US3728043A (en) * | 1972-01-12 | 1973-04-17 | Fram Corp | Flexible blade fan with ribbed blades |
US4025231A (en) * | 1975-11-26 | 1977-05-24 | Revcor, Inc. | Propeller fan construction |
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