US2010094A - Propeller - Google Patents
Propeller Download PDFInfo
- Publication number
- US2010094A US2010094A US652829A US65282933A US2010094A US 2010094 A US2010094 A US 2010094A US 652829 A US652829 A US 652829A US 65282933 A US65282933 A US 65282933A US 2010094 A US2010094 A US 2010094A
- Authority
- US
- United States
- Prior art keywords
- fins
- propeller
- blades
- blade
- construction
- 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 - Lifetime
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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
- B64C11/16—Blades
Definitions
- Fig. l is a perspective view of a preferred embodiin'ent of the invention.
- Fig. 2 is a sectional view on line ⁇ -2 in Fig. 1;
- Fig. 3 is an elevational view of the same; and- Fig. 4 is a top plan view thereof.
- the new propeller comprises a hub l and blades 2 and 3 extending radially therefrom.
- fins 4 Formed integrally with, or converted in any suitable manner tending transversely thereacross, is a series of fins 4. These fins 4 are curved throughout their extent and they have a convex curvature ln'the direction of the hub I, or'a concave curvature in the direction of the radially outer ends .or tips of the blades '(Figs. 3 and 4); the height of the fins 4 increasing gradually from the leading edges 5 of the blades to the trailing edges 8 thereof.
- the present propeller is especially designed for use as a ventilating fan and when in use improves to, each of the blades, and exgenerally the circulation of the air 'in which it operates, one reason for this being that the construction of the fins 4 directs the air therefrom toward the radially, outer ends or tips of the blades.
- a propeller including a blade having a series of fins extending transversely thereacross between the leading and trailing edges thereof; said blade having a substantially uniform and fiat surface throughout its main extent on the side thereof on which the said fins are arranged; each of said fins being curved throughout its extent and having a concave curvature in a direction toward the radial tip of the blade; said fins gradually increasing in height from the leading edge of the blade to the trailing edge thereof.
Description
Aug. 6, 1935. w. i-l. LEI-NWEBER FROPELLER Fil ed Jan. 21, 1953 5 mvENTbiz. William H. Leinweber HIS ATTORNEYS Patented Aug. 6, 1935 rnoPELLEB k g William H. Leinweber, Chicago, Ill. Application January 21, 1933, Serial No. 652,829 v 1 Claim. This invention relates to a propeller.
It is an object of this invention to provide an improved propeller which is relatively simple and inexpensive in construction and efiicient in use.
Other objects will. appear hereinafter.
The invention consists in the novel comblnation and arrangement of parts to be' hereinafter describedand claimed. The invention will be best understood by reference to the accompanying. drawing, showing the preferred cm of construction and in which:
Fig. l is a perspective view of a preferred embodiin'ent of the invention;
Fig. 2 is a sectional view on line {-2 in Fig. 1;
Fig. 3 is an elevational view of the same; and- Fig. 4 is a top plan view thereof. The new propeller comprises a hub l and blades 2 and 3 extending radially therefrom.
Formed integrally with, or converted in any suitable manner tending transversely thereacross, is a series of fins 4. These fins 4 are curved throughout their extent and they have a convex curvature ln'the direction of the hub I, or'a concave curvature in the direction of the radially outer ends .or tips of the blades '(Figs. 3 and 4); the height of the fins 4 increasing gradually from the leading edges 5 of the blades to the trailing edges 8 thereof.
The present propeller is especially designed for use as a ventilating fan and when in use improves to, each of the blades, and exgenerally the circulation of the air 'in which it operates, one reason for this being that the construction of the fins 4 directs the air therefrom toward the radially, outer ends or tips of the blades.
' While I have illustrated and described the preferred form of construction for carrying my invention into efiect, this is capable of variation and modification, without departing from the spirit of the invention. I,- therefore, do not wish to be limited to the precisedetails of construc-. tion set forth, but desire to avail myself of such variations and modifications as come within the scope of the appended claim. a Having thus described my inventionwhat I claim as new and desire to secure by Letters Patent, is:
A propeller including a blade having a series of fins extending transversely thereacross between the leading and trailing edges thereof; said blade having a substantially uniform and fiat surface throughout its main extent on the side thereof on which the said fins are arranged; each of said fins being curved throughout its extent and having a concave curvature in a direction toward the radial tip of the blade; said fins gradually increasing in height from the leading edge of the blade to the trailing edge thereof.
WILLIAM: H. LEINWEBERI
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US652829A US2010094A (en) | 1933-01-21 | 1933-01-21 | Propeller |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US652829A US2010094A (en) | 1933-01-21 | 1933-01-21 | Propeller |
Publications (1)
Publication Number | Publication Date |
---|---|
US2010094A true US2010094A (en) | 1935-08-06 |
Family
ID=24618326
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US652829A Expired - Lifetime US2010094A (en) | 1933-01-21 | 1933-01-21 | Propeller |
Country Status (1)
Country | Link |
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US (1) | US2010094A (en) |
Cited By (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2619318A1 (en) * | 1975-04-30 | 1977-04-14 | Toyoda Chuo Kenkyusho Kk | AXIAL FAN |
DE2756880A1 (en) * | 1976-12-20 | 1978-06-22 | Toyoda Chuo Kenkyusho Kk | AXIAL FAN WITH AUXILIARY BLADES |
US4265596A (en) * | 1977-11-22 | 1981-05-05 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Axial flow fan with auxiliary blades |
US4693673A (en) * | 1982-08-09 | 1987-09-15 | Nee Victor W | Ceiling fan |
US5151014A (en) * | 1989-06-30 | 1992-09-29 | Airflow Research And Manufacturing Corporation | Lightweight airfoil |
US6334705B1 (en) * | 1998-10-01 | 2002-01-01 | General Signal Corporation | Fluid mixing impellers with shear generating venturi |
US20060018759A1 (en) * | 2003-01-30 | 2006-01-26 | Josef Moser | Rotor blade |
US20090162200A1 (en) * | 2007-12-19 | 2009-06-25 | Rolls-Royce Plc | Rotor blades |
US20100143144A1 (en) * | 2009-05-28 | 2010-06-10 | General Electric Commpany | Boundary layer fins for wind turbine blade |
US20100189569A1 (en) * | 2009-01-26 | 2010-07-29 | Rolls-Royce Plc | Rotor blade |
WO2011097024A1 (en) * | 2010-02-02 | 2011-08-11 | Garden Energy, Inc. | Wind power generation system |
US20120320705A1 (en) * | 2011-06-20 | 2012-12-20 | Ben Floan | Stirring arm for mixing slurry material |
US8591195B2 (en) | 2010-05-28 | 2013-11-26 | Pratt & Whitney Canada Corp. | Turbine blade with pressure side stiffening rib |
US20140255184A1 (en) * | 2013-03-05 | 2014-09-11 | Bell Helicopter Textron Inc. | System and Method for Reducing Rotor Blade Noise |
US20170107970A1 (en) * | 2014-07-03 | 2017-04-20 | LW WP Patent Holding A/S | A Wind Turbine Blade |
WO2018104197A1 (en) * | 2016-12-05 | 2018-06-14 | General Electric Company | Impeller including one or more turbulators, for a bioreactor system |
US11236722B2 (en) * | 2018-06-27 | 2022-02-01 | Siemens Gamesa Renewable Energy A/S | Aerodynamic structure |
US11359600B2 (en) | 2018-06-27 | 2022-06-14 | Siemens Gamesa Renewable Energy A/S | Aerodynamic structure |
-
1933
- 1933-01-21 US US652829A patent/US2010094A/en not_active Expired - Lifetime
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2619318A1 (en) * | 1975-04-30 | 1977-04-14 | Toyoda Chuo Kenkyusho Kk | AXIAL FAN |
DE2756880A1 (en) * | 1976-12-20 | 1978-06-22 | Toyoda Chuo Kenkyusho Kk | AXIAL FAN WITH AUXILIARY BLADES |
US4265596A (en) * | 1977-11-22 | 1981-05-05 | Kabushiki Kaisha Toyota Chuo Kenkyusho | Axial flow fan with auxiliary blades |
US4693673A (en) * | 1982-08-09 | 1987-09-15 | Nee Victor W | Ceiling fan |
US5151014A (en) * | 1989-06-30 | 1992-09-29 | Airflow Research And Manufacturing Corporation | Lightweight airfoil |
US6334705B1 (en) * | 1998-10-01 | 2002-01-01 | General Signal Corporation | Fluid mixing impellers with shear generating venturi |
US20060018759A1 (en) * | 2003-01-30 | 2006-01-26 | Josef Moser | Rotor blade |
US7566203B2 (en) * | 2003-01-30 | 2009-07-28 | Josef Moser | Rotor blade |
US20090162200A1 (en) * | 2007-12-19 | 2009-06-25 | Rolls-Royce Plc | Rotor blades |
US8133032B2 (en) * | 2007-12-19 | 2012-03-13 | Rolls-Royce, Plc | Rotor blades |
US20100189569A1 (en) * | 2009-01-26 | 2010-07-29 | Rolls-Royce Plc | Rotor blade |
US8366393B2 (en) | 2009-01-26 | 2013-02-05 | Rolls-Royce Plc | Rotor blade |
US20100143144A1 (en) * | 2009-05-28 | 2010-06-10 | General Electric Commpany | Boundary layer fins for wind turbine blade |
US7857597B2 (en) * | 2009-05-28 | 2010-12-28 | General Electric Company | Boundary layer fins for wind turbine blade |
WO2011097024A1 (en) * | 2010-02-02 | 2011-08-11 | Garden Energy, Inc. | Wind power generation system |
US8591195B2 (en) | 2010-05-28 | 2013-11-26 | Pratt & Whitney Canada Corp. | Turbine blade with pressure side stiffening rib |
US20120320705A1 (en) * | 2011-06-20 | 2012-12-20 | Ben Floan | Stirring arm for mixing slurry material |
US20140255184A1 (en) * | 2013-03-05 | 2014-09-11 | Bell Helicopter Textron Inc. | System and Method for Reducing Rotor Blade Noise |
US9464532B2 (en) * | 2013-03-05 | 2016-10-11 | Bell Helicopter Textron Inc. | System and method for reducing rotor blade noise |
US20170107970A1 (en) * | 2014-07-03 | 2017-04-20 | LW WP Patent Holding A/S | A Wind Turbine Blade |
US10781788B2 (en) * | 2014-07-03 | 2020-09-22 | Lm Wp Patent Holding A/S | Wind turbine blade |
WO2018104197A1 (en) * | 2016-12-05 | 2018-06-14 | General Electric Company | Impeller including one or more turbulators, for a bioreactor system |
US11629322B2 (en) | 2016-12-05 | 2023-04-18 | Global Life Sciences Solutions Usa Llc | Impeller including one or more turbulators, for a bioreactor system |
US11236722B2 (en) * | 2018-06-27 | 2022-02-01 | Siemens Gamesa Renewable Energy A/S | Aerodynamic structure |
US11359600B2 (en) | 2018-06-27 | 2022-06-14 | Siemens Gamesa Renewable Energy A/S | Aerodynamic structure |
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