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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
GB234305A GB15735/24A GB1573524A GB234305A GB 234305 A GB234305 A GB 234305A GB 15735/24 A GB15735/24 A GB 15735/24A GB 1573524 A GB1573524 A GB 1573524A GB 234305 A GB234305 A GB 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 BOVEY filed Critical JOHN HENRY BOVEY
Priority to GB15735/24A priority Critical patent/GB234305A/en
Publication of GB234305A publication Critical patent/GB234305A/en
Expired legal-status Critical Current

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
    • B63H1/20—Hubs; Blade connections
    • 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
    • B63H2001/122—Single or multiple threaded helicoidal screws, or the like, comprising foils extending over a substantial angle; Archimedean screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
    • B63H2005/106—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type with drive shafts of second or further propellers co-axially passing through hub of first propeller, e.g. counter-rotating tandem propellers with co-axial drive shafts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H20/00—Outboard propulsion units, e.g. outboard motors or Z-drives; Arrangements thereof on vessels
    • B63H20/32—Housings
    • B63H2020/323—Gear cases
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H23/00—Transmitting power from propulsion power plant to propulsive elements
    • B63H23/32—Other parts
    • B63H23/34—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts
    • B63H2023/346—Propeller shafts; Paddle-wheel shafts; Attachment of propellers on shafts comprising hollow shaft members

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Screw Conveyors (AREA)

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.
GB15735/24A 1924-07-01 1924-07-01 Improvements in and relating to rotary propellers Expired GB234305A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB15735/24A GB234305A (en) 1924-07-01 1924-07-01 Improvements in and relating to rotary propellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB15735/24A GB234305A (en) 1924-07-01 1924-07-01 Improvements in and relating to rotary propellers

Publications (1)

Publication Number Publication Date
GB234305A true GB234305A (en) 1925-05-28

Family

ID=10064540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB15735/24A Expired GB234305A (en) 1924-07-01 1924-07-01 Improvements in and relating to rotary propellers

Country Status (1)

Country Link
GB (1) GB234305A (en)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6050868A (en) * 1996-01-11 2000-04-18 Mccarthy; Peter T. High efficiency hydrofoil and swim fin designs
US6095879A (en) * 1998-05-14 2000-08-01 Mccarthy; Peter T. Methods for creating consistent large scale blade deflections
GB2346657A (en) * 1999-02-09 2000-08-16 Airship Tech Serv Ltd Propellers for airship propulsion and control
US6371821B1 (en) 1996-01-11 2002-04-16 Nature's Wing Fin Designs, Llc High efficiency hydrofoil and swim fin designs
US6482059B2 (en) 1997-05-09 2002-11-19 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
USD484214S1 (en) 2002-06-28 2003-12-23 Johson Outdoors Inc. Fin
US6758708B2 (en) 2002-06-28 2004-07-06 Johnson Outdoors Inc. Swim fin with energy storage and release system for improved angle of attack and water flow characteristics
US6884134B2 (en) 2002-07-19 2005-04-26 Mccarthy Peter T. High deflection hydrofoils and swim fins
US7018256B2 (en) 1998-05-14 2006-03-28 Mccarthy Peter T Methods for creating large scale focused blade deflections

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585548B2 (en) 1996-01-11 2003-07-01 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US6607411B1 (en) 1996-01-11 2003-08-19 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US7101240B2 (en) 1996-01-11 2006-09-05 Mccarthy Peter T High efficiency hydrofoil and swim fin designs
US6146224A (en) * 1996-01-11 2000-11-14 Mccarthy; Peter T. High efficiency hydrofoil and swim fin designs
US6371821B1 (en) 1996-01-11 2002-04-16 Nature's Wing Fin Designs, Llc High efficiency hydrofoil and swim fin designs
US6050868A (en) * 1996-01-11 2000-04-18 Mccarthy; Peter T. High efficiency hydrofoil and swim fin designs
US6497597B2 (en) 1996-01-11 2002-12-24 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
EP0880379A4 (en) * 1996-01-11 2003-04-02 Peter Thomas Mccarthy High efficiency hydrofoil and swim fin designs
US6482059B2 (en) 1997-05-09 2002-11-19 Mccarthy Peter T. High efficiency hydrofoil and swim fin designs
US6095879A (en) * 1998-05-14 2000-08-01 Mccarthy; Peter T. Methods for creating consistent large scale blade deflections
US6918805B2 (en) 1998-05-14 2005-07-19 Mccarthy Peter T. Methods for creating consistent large scale blade deflections
US7018256B2 (en) 1998-05-14 2006-03-28 Mccarthy Peter T Methods for creating large scale focused blade deflections
US7581997B2 (en) 1998-05-14 2009-09-01 Mccarthy Peter T Method for creating consistent large scale blade deflections
GB2346657A (en) * 1999-02-09 2000-08-16 Airship Tech Serv Ltd Propellers for airship propulsion and control
USD484214S1 (en) 2002-06-28 2003-12-23 Johson Outdoors Inc. Fin
US6758708B2 (en) 2002-06-28 2004-07-06 Johnson Outdoors Inc. Swim fin with energy storage and release system for improved angle of attack and water flow characteristics
US6884134B2 (en) 2002-07-19 2005-04-26 Mccarthy Peter T. High deflection hydrofoils and swim fins

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