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GB234305A - Improvements in and relating to rotary propellers - Google Patents

Improvements in and relating to rotary propellers

Info

Publication number
GB234305A
GB234305AGB15735/24AGB1573524AGB234305AGB 234305 AGB234305 AGB 234305AGB 15735/24 AGB15735/24 AGB 15735/24AGB 1573524 AGB1573524 AGB 1573524AGB 234305 AGB234305 AGB 234305A
Authority
GB
United Kingdom
Prior art keywords
propellers
screw
oppositely
relating
attached
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
Application number
GB15735/24A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JOHN HENRY BOVEY
Original Assignee
JOHN HENRY BOVEY
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JOHN HENRY BOVEYfiledCriticalJOHN HENRY BOVEY
Priority to GB15735/24ApriorityCriticalpatent/GB234305A/en
Publication of GB234305ApublicationCriticalpatent/GB234305A/en
Expiredlegal-statusCriticalCurrent

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Classifications

Landscapes

Abstract

234,305. Bovey, J. H. July 1, 1924. Screw propellers ; driving-arrangements for screw propellers. - Two oppositely rotated propellers on the same axis are each formed with two blades and each blade comprises a front portion of continuous helical form to the rear edge of which is pivotally attached a flat fin. The forward screw portions a', b' of propellers a, b have hinges l at the rear edges for carrying fins g which take up neutral positions in the wash from the screw portion. The propellers a, b, are attached to solid and hollow shafts o, r respectively which carry pinions c, d driven in common and oppositely by the pinion i on the transmission shaft m.
GB15735/24A1924-07-011924-07-01Improvements in and relating to rotary propellersExpiredGB234305A (en)

Priority Applications (1)

Application NumberPriority DateFiling DateTitle
GB15735/24AGB234305A (en)1924-07-011924-07-01Improvements in and relating to rotary propellers

Applications Claiming Priority (1)

Application NumberPriority DateFiling DateTitle
GB15735/24AGB234305A (en)1924-07-011924-07-01Improvements in and relating to rotary propellers

Publications (1)

Publication NumberPublication Date
GB234305Atrue GB234305A (en)1925-05-28

Family

ID=10064540

Family Applications (1)

Application NumberTitlePriority DateFiling Date
GB15735/24AExpiredGB234305A (en)1924-07-011924-07-01Improvements in and relating to rotary propellers

Country Status (1)

CountryLink
GB (1)GB234305A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US6050868A (en)*1996-01-112000-04-18Mccarthy; Peter T.High efficiency hydrofoil and swim fin designs
US6095879A (en)*1998-05-142000-08-01Mccarthy; Peter T.Methods for creating consistent large scale blade deflections
GB2346657A (en)*1999-02-092000-08-16Airship Tech Serv LtdPropellers for airship propulsion and control
US6371821B1 (en)1996-01-112002-04-16Nature's Wing Fin Designs, LlcHigh efficiency hydrofoil and swim fin designs
US6482059B2 (en)1997-05-092002-11-19Mccarthy Peter T.High efficiency hydrofoil and swim fin designs
USD484214S1 (en)2002-06-282003-12-23Johson Outdoors Inc.Fin
US6758708B2 (en)2002-06-282004-07-06Johnson Outdoors Inc.Swim fin with energy storage and release system for improved angle of attack and water flow characteristics
US6884134B2 (en)2002-07-192005-04-26Mccarthy Peter T.High deflection hydrofoils and swim fins
US7018256B2 (en)1998-05-142006-03-28Mccarthy Peter TMethods for creating large scale focused blade deflections

Cited By (17)

* Cited by examiner, † Cited by third party
Publication numberPriority datePublication dateAssigneeTitle
US6585548B2 (en)1996-01-112003-07-01Mccarthy Peter T.High efficiency hydrofoil and swim fin designs
US6607411B1 (en)1996-01-112003-08-19Mccarthy Peter T.High efficiency hydrofoil and swim fin designs
US7101240B2 (en)1996-01-112006-09-05Mccarthy Peter THigh efficiency hydrofoil and swim fin designs
US6146224A (en)*1996-01-112000-11-14Mccarthy; Peter T.High efficiency hydrofoil and swim fin designs
US6371821B1 (en)1996-01-112002-04-16Nature's Wing Fin Designs, LlcHigh efficiency hydrofoil and swim fin designs
US6050868A (en)*1996-01-112000-04-18Mccarthy; Peter T.High efficiency hydrofoil and swim fin designs
US6497597B2 (en)1996-01-112002-12-24Mccarthy Peter T.High efficiency hydrofoil and swim fin designs
EP0880379A4 (en)*1996-01-112003-04-02Peter Thomas MccarthyHigh efficiency hydrofoil and swim fin designs
US6482059B2 (en)1997-05-092002-11-19Mccarthy Peter T.High efficiency hydrofoil and swim fin designs
US6095879A (en)*1998-05-142000-08-01Mccarthy; Peter T.Methods for creating consistent large scale blade deflections
US6918805B2 (en)1998-05-142005-07-19Mccarthy Peter T.Methods for creating consistent large scale blade deflections
US7018256B2 (en)1998-05-142006-03-28Mccarthy Peter TMethods for creating large scale focused blade deflections
US7581997B2 (en)1998-05-142009-09-01Mccarthy Peter TMethod for creating consistent large scale blade deflections
GB2346657A (en)*1999-02-092000-08-16Airship Tech Serv LtdPropellers for airship propulsion and control
USD484214S1 (en)2002-06-282003-12-23Johson Outdoors Inc.Fin
US6758708B2 (en)2002-06-282004-07-06Johnson Outdoors Inc.Swim fin with energy storage and release system for improved angle of attack and water flow characteristics
US6884134B2 (en)2002-07-192005-04-26Mccarthy Peter T.High deflection hydrofoils and swim fins

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