US855131A - Screw-propeller. - Google Patents
Screw-propeller. Download PDFInfo
- Publication number
- US855131A US855131A US29039305A US1905290393A US855131A US 855131 A US855131 A US 855131A US 29039305 A US29039305 A US 29039305A US 1905290393 A US1905290393 A US 1905290393A US 855131 A US855131 A US 855131A
- Authority
- US
- United States
- Prior art keywords
- propeller
- blades
- ring
- screw
- tips
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D3/00—Axial-flow pumps
- F04D3/005—Axial-flow pumps with a conventional single stage rotor
Definitions
- This invention relates to im rovements in screw propellers, the object eing to so construct the same that lateral slip between the propeller and the medium in which it rotates is obviated.
- I provide a cylindrical, conical or similar ring around the outside of the pro eller, the tips of the blades being connecte to the inner surface of the said ring, the axis of which is coinci dent with that of the propeller boss; ring may be continuous, or it may be broken at one ormore points, in which case it isin the form of a number of segments attached to the tips of the propeller blades.
- the ring is open at both sides and those portions between the adj acentblades are recessed or cut away at one side, the recesses extending to say about the center of the boss of the propeller.
- Figure 1 is a side elevation of a ropeller *ig. 2 is a section on the line 2-2, Fig. 1.
- Fig. 3 is a plan view thereof.
- Fig. 4 is a development of a art of the ring.
- Fig. 5 is a view similar to Fig. 3 illustrating a modification, and
- Fig. 6 is a lan view thereof.
- ring 0 is the ring which is provided around the outside of the propeller and the axis of which is coincident with that of the boss a.
- the ring 0 is continuous and the tips of the blades 1), b are connected to its inner surface as clearly shown, the inner or inside end of the said ring being cut away so as to form the recesses d, d between the propeller blades b, b;
- the water (or air) in which the propeller is revolving is forced through the ring more or less like a solid column in a direction opposite to that in which the vessel to which the propeller is attached is to move, thus obviati'ng lateral slip from the propeller blades.
- the ring made'in two parts, e and f, the portion 6 being composed of segments forming the recesses d, d and attached to the tips of the propeller blades b and the portion f being fixed so as not to rotate with the propeller, that is to say, being secured in place by means of the stays g to the rear of the vessel.
- a discontinuous ring that is to say, of a number of segments which are attached to the tips of the propeller blades. I prefer, however, to use a continuous ring as above described.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Description
PATENTED MAY 28, 1907. W. PREIDEL. V
SCREW PROPELLER.
APPLICATION FILED DEO.5.1905.
2 SHEETS-SHEET 1'.
W. PREIDEL.
SCREW PROPBLLBR. APPLICATION FILED 13110.5.1905.
2 SHEETS-SHEET 2. 1 2 5 g Y PATBNTED MAY 28, 1907.
'made according to my invention.
UNITED STATES PATENT OFFIOE.
SCHEW-PROPELLER.
Specification of Letters Patent.
Patented May 28, 1907.
Application filed December 5, 1905. Serial No. 290,393.
To all whom it may concern.-
Be it known that I, WENZEL PREIDEL, a subject of the Emperor of Austria, residing at 4 Magdalen Parade, Garratt Lane, Earlsfield, London, England, have invented new and useful Im rovements in Screw-Propellers of which the fbllowing is a specification.
This invention relates to im rovements in screw propellers, the object eing to so construct the same that lateral slip between the propeller and the medium in which it rotates is obviated.
According to the invention I provide a cylindrical, conical or similar ring around the outside of the pro eller, the tips of the blades being connecte to the inner surface of the said ring, the axis of which is coinci dent with that of the propeller boss; ring may be continuous, or it may be broken at one ormore points, in which case it isin the form of a number of segments attached to the tips of the propeller blades. The ring, is open at both sides and those portions between the adj acentblades are recessed or cut away at one side, the recesses extending to say about the center of the boss of the propeller.
To enable the invention to be fully understood I will describe it by reference to the accompanying drawings, in which Figure 1 is a side elevation of a ropeller *ig. 2 is a section on the line 2-2, Fig. 1. Fig. 3 is a plan view thereof. Fig. 4 is a development of a art of the ring. Fig. 5 is a view similar to Fig. 3 illustrating a modification, and Fig. 6 is a lan view thereof.
Re errin first to the arrangement illustrated in Figs. 1 to 4 a is the boss of the propeller and b, b, b the blades thereof. 0 is the ring which is provided around the outside of the propeller and the axis of which is coincident with that of the boss a. In the arrangement illustrated in the drawing the ring 0 is continuous and the tips of the blades 1), b are connected to its inner surface as clearly shown, the inner or inside end of the said ring being cut away so as to form the recesses d, d between the propeller blades b, b;
The
these recesses extend, as above mentioned, to about the center of the boss (I of the propeller.
By constructing a propeller as above described, the water (or air) in which the propeller is revolving, is forced through the ring more or less like a solid column in a direction opposite to that in which the vessel to which the propeller is attached is to move, thus obviati'ng lateral slip from the propeller blades.
In the arrangement illustrated in Figs. 5 and 6 I have shown the ring made'in two parts, e and f, the portion 6 being composed of segments forming the recesses d, d and attached to the tips of the propeller blades b and the portion f being fixed so as not to rotate with the propeller, that is to say, being secured in place by means of the stays g to the rear of the vessel. With this construction it will be clear that a certain amount of friction between the rotating ring and the water is avoided.
In some cases, in lieu of a recessed continuous ring, I may make use of a discontinuous ring, that is to say, of a number of segments which are attached to the tips of the propeller blades. I prefer, however, to use a continuous ring as above described.
Having now particularly described and ascertained the nature of my said invention and in what manner the same is to be performed, I declare that what I claim is 1. In a screw propeller, the combination with blades of a ring encircling the ends of said blades and secured thereto, said ring being of greater width than the width of said blades and extending rearwardly therefrom, the front edge of said ring being provided with notches between said blades, substantial] y as described.
2. In a screw propeller, the combination with blades, of a two part ring encircling said blades, said ring being concentric with the axis of rotation and having one part thereof secured to said blades, the other part thereof being adapted to remain stationary, substantially as described.
3. In a screw propeller, the combination with blades, of a two part ring encircling said blades, said ring being concentric with the axis of rotation and of greater Width than thewidth of said blades, and having one part thereof secured to said blades, the other part thereof being adapted to remain stationary, substantially as described.
4. In a screw propeller, the combination with blades, of a two part ring encircling said blades, said ring being concentric with the axis of rotation and of greater Width than the Width of said blades and having one part 50- 1o cured to said blades, the front edge of said part being notched between said blades, the other of said parts being adapted to remain stationary, substantially as described.
VENZEL PREIDEL. Witnesses:
JOHN E. BoUsFIELn, O. Gr. REDFERN.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29039305A US855131A (en) | 1905-12-05 | 1905-12-05 | Screw-propeller. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US29039305A US855131A (en) | 1905-12-05 | 1905-12-05 | Screw-propeller. |
Publications (1)
Publication Number | Publication Date |
---|---|
US855131A true US855131A (en) | 1907-05-28 |
Family
ID=2923586
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US29039305A Expired - Lifetime US855131A (en) | 1905-12-05 | 1905-12-05 | Screw-propeller. |
Country Status (1)
Country | Link |
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US (1) | US855131A (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3258245A (en) * | 1964-07-20 | 1966-06-28 | Gen Electric | Blade stiffening means |
US4505641A (en) * | 1980-03-07 | 1985-03-19 | Aisin Seiki Kabushiki Kaisha | Cooling fan for internal combustion engine |
US5044884A (en) * | 1989-09-05 | 1991-09-03 | Trustees Of The University Of Pennsylvania | Safety propeller |
US5096382A (en) * | 1989-05-17 | 1992-03-17 | Gratzer Louis B | Ring-shrouded propeller |
US5405243A (en) * | 1990-12-14 | 1995-04-11 | Stealth Propulsion Pty. Ltd. | Propeller with shrouding ring attached to blade |
US20070071603A1 (en) * | 2005-09-27 | 2007-03-29 | Denso Corporation | Fan and blower unit having the same |
US20080064274A1 (en) * | 2006-09-11 | 2008-03-13 | Brentnall Jesse Higgs | Boat propeller |
US20130115087A1 (en) * | 2011-11-09 | 2013-05-09 | Johnson Electric S.A. | Axial Fan |
US20130209242A1 (en) * | 2010-08-05 | 2013-08-15 | Mitsuba Corporation | Cooling fan |
US20140169970A1 (en) * | 2012-12-18 | 2014-06-19 | Michael A. Celentano | Attached duct propeller system |
CN108591119A (en) * | 2018-03-07 | 2018-09-28 | 常州祥明智能动力股份有限公司 | A kind of axial flow fan vane wheel |
US20190226747A1 (en) * | 2018-01-25 | 2019-07-25 | Johnson Controls Technology Company | Condenser unit with fan |
US11203413B2 (en) | 2018-11-07 | 2021-12-21 | N99 Llc | Advanced propeller assemblies |
-
1905
- 1905-12-05 US US29039305A patent/US855131A/en not_active Expired - Lifetime
Cited By (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3258245A (en) * | 1964-07-20 | 1966-06-28 | Gen Electric | Blade stiffening means |
US4505641A (en) * | 1980-03-07 | 1985-03-19 | Aisin Seiki Kabushiki Kaisha | Cooling fan for internal combustion engine |
US5096382A (en) * | 1989-05-17 | 1992-03-17 | Gratzer Louis B | Ring-shrouded propeller |
US5044884A (en) * | 1989-09-05 | 1991-09-03 | Trustees Of The University Of Pennsylvania | Safety propeller |
US5405243A (en) * | 1990-12-14 | 1995-04-11 | Stealth Propulsion Pty. Ltd. | Propeller with shrouding ring attached to blade |
US20070071603A1 (en) * | 2005-09-27 | 2007-03-29 | Denso Corporation | Fan and blower unit having the same |
JP2007092562A (en) * | 2005-09-27 | 2007-04-12 | Denso Corp | Cooling fan and blower |
US7632063B2 (en) * | 2005-09-27 | 2009-12-15 | Denso Corporation | Fan and blower unit having the same |
JP4618077B2 (en) * | 2005-09-27 | 2011-01-26 | 株式会社デンソー | Cooling fan and blower |
US20080064274A1 (en) * | 2006-09-11 | 2008-03-13 | Brentnall Jesse Higgs | Boat propeller |
US9803645B2 (en) * | 2010-08-05 | 2017-10-31 | Mitsuba Corporation | Cooling fan |
US20130209242A1 (en) * | 2010-08-05 | 2013-08-15 | Mitsuba Corporation | Cooling fan |
CN103104552A (en) * | 2011-11-09 | 2013-05-15 | 德昌电机(深圳)有限公司 | Axial fan |
US9206816B2 (en) * | 2011-11-09 | 2015-12-08 | Johnson Electric S.A. | Axial fan |
US20130115087A1 (en) * | 2011-11-09 | 2013-05-09 | Johnson Electric S.A. | Axial Fan |
US20140169970A1 (en) * | 2012-12-18 | 2014-06-19 | Michael A. Celentano | Attached duct propeller system |
US20190226747A1 (en) * | 2018-01-25 | 2019-07-25 | Johnson Controls Technology Company | Condenser unit with fan |
US10962275B2 (en) * | 2018-01-25 | 2021-03-30 | Johnson Controls Technology Company | Condenser unit with fan |
CN108591119A (en) * | 2018-03-07 | 2018-09-28 | 常州祥明智能动力股份有限公司 | A kind of axial flow fan vane wheel |
US11203413B2 (en) | 2018-11-07 | 2021-12-21 | N99 Llc | Advanced propeller assemblies |
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