US230314A - Bichard mcmanus - Google Patents
Bichard mcmanus Download PDFInfo
- Publication number
- US230314A US230314A US230314DA US230314A US 230314 A US230314 A US 230314A US 230314D A US230314D A US 230314DA US 230314 A US230314 A US 230314A
- Authority
- US
- United States
- Prior art keywords
- mcmanus
- oar
- bichard
- blade
- richard
- 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
Links
- 241000143392 Oar Species 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H16/00—Marine propulsion by muscle power
- B63H16/04—Oars; Sculls; Paddles; Poles
Description
(No Model.)
R. MGMANUS.
' Oar.
No. 230,314. Patented July 20,1880.
UNITED STATES PATENT OFFICE..
RICHARD MCMANUS, OF BOSTON, MASSACHUSETTS.
OAR.
SPECIFICATION forming part of Letters Patent No. 230,314, dated July 20, 188C.
Application filed May 3l` 1880. (No model.)
To all whom lt may concern Be itknowu that I RICHARD MCMANUS, of Boston, in the State ot' Massachusetts. have invented an Improved Oar, of which the following` is a specification.
I have represented in the drawing a blade of an oar containing),` my invention.
It is well known to oarsmen that when the oar in rowing' rst strikes the water there is a considerable jar or shook, o overoine which the oarsinan mustexert more strength than would otherwise he necessary. To overcome this I place in the blade of lthe oar a number of holes or instead of the holes slots or square openings, or both, may be used. I make the blade ot' the oar longer and wider, so as to present the. same amount ot' surface for the propulsion of' the boat. as the blade of the oar has when made in the ordinary way.
It will be found that my oar, in addition to zo RICH ARI.) MCMANUS.
Witnesses GEORGE H. HosMER. OHAS. H. DREW.
Publications (1)
Publication Number | Publication Date |
---|---|
US230314A true US230314A (en) | 1880-07-20 |
Family
ID=2299690
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US230314D Expired - Lifetime US230314A (en) | Bichard mcmanus |
Country Status (1)
Country | Link |
---|---|
US (1) | US230314A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2586024A (en) * | 1949-02-15 | 1952-02-19 | Frank T Glasgow | Rowing machine |
US5813755A (en) * | 1996-11-25 | 1998-09-29 | Proshan; Mary-Elizabeth | Single blade whisk |
US20080232973A1 (en) * | 2005-07-21 | 2008-09-25 | Saint Louis University | Propeller blade |
FR2967129A1 (en) * | 2010-11-09 | 2012-05-11 | Christophe Rouanet | HYDRODYNAMIC ROW |
AU2016251712B2 (en) * | 2015-04-23 | 2019-03-14 | Oscar Propulsion Ltd | Oar with openings in the blade |
-
0
- US US230314D patent/US230314A/en not_active Expired - Lifetime
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2586024A (en) * | 1949-02-15 | 1952-02-19 | Frank T Glasgow | Rowing machine |
US5813755A (en) * | 1996-11-25 | 1998-09-29 | Proshan; Mary-Elizabeth | Single blade whisk |
US20080232973A1 (en) * | 2005-07-21 | 2008-09-25 | Saint Louis University | Propeller blade |
FR2967129A1 (en) * | 2010-11-09 | 2012-05-11 | Christophe Rouanet | HYDRODYNAMIC ROW |
WO2012066193A2 (en) | 2010-11-09 | 2012-05-24 | Christophe Rouanet | Hydrodynamic oar |
WO2012066193A3 (en) * | 2010-11-09 | 2012-08-30 | Christophe Rouanet | Hydrodynamic oar |
AU2016251712B2 (en) * | 2015-04-23 | 2019-03-14 | Oscar Propulsion Ltd | Oar with openings in the blade |
US10526063B2 (en) * | 2015-04-23 | 2020-01-07 | Oscar Propulsion Ltd. | Oar with openings in the blade |
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