GB246635A - Improvements in and relating to the propulsion and steering of motor launches and the like - Google Patents

Improvements in and relating to the propulsion and steering of motor launches and the like

Info

Publication number
GB246635A
GB246635A GB2993924A GB2993924A GB246635A GB 246635 A GB246635 A GB 246635A GB 2993924 A GB2993924 A GB 2993924A GB 2993924 A GB2993924 A GB 2993924A GB 246635 A GB246635 A GB 246635A
Authority
GB
United Kingdom
Prior art keywords
cowl
rudders
aft
propeller
propulsion
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
GB2993924A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2993924A priority Critical patent/GB246635A/en
Publication of GB246635A publication Critical patent/GB246635A/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
    • 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
    • B63H5/16—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in recesses; with stationary water-guiding elements; Means to prevent fouling of the propeller, e.g. guards, cages or screens
    • 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
    • B63H1/18—Propellers with means for diminishing cavitation, e.g. supercavitation
    • B63H2001/185—Surfacing propellers, i.e. propellers specially adapted for operation at the water surface, with blades incompletely submerged, or piercing the water surface from above in the course of each revolution

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Toys (AREA)

Abstract

246,635. Saunders, S. E., and Clarkson, A. Dec. 12, 1924. Screw propellers; rudders.-Motor launches or hydroplanes having semi-submerged propellers are provided with a cowl shrouding the unsubmerged part of the propeller and extending down on either side. The cowl may be pivotally mounted to act as a rudder, or may be fixed and two separate rudders provided. The cowl e, Fig. 1, is secured to the transom b by stiffening webs f, and is curved so as to deflect water thrown up by the propeller c both aft and downwardly. Two rudders h are fitted on either side of the cowl, but they may be fitted aft of the cowl or forwardly on the boat. In a modification, the cowl e, Fig. 4, is pivotally mounted on brackets j and has side extensions h<1> projecting into the water to form rudder blades. Specification 5064/11 is referred to.
GB2993924A 1924-12-12 1924-12-12 Improvements in and relating to the propulsion and steering of motor launches and the like Expired GB246635A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2993924A GB246635A (en) 1924-12-12 1924-12-12 Improvements in and relating to the propulsion and steering of motor launches and the like

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2993924A GB246635A (en) 1924-12-12 1924-12-12 Improvements in and relating to the propulsion and steering of motor launches and the like

Publications (1)

Publication Number Publication Date
GB246635A true GB246635A (en) 1926-02-04

Family

ID=10299660

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2993924A Expired GB246635A (en) 1924-12-12 1924-12-12 Improvements in and relating to the propulsion and steering of motor launches and the like

Country Status (1)

Country Link
GB (1) GB246635A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780195A (en) * 1954-09-02 1957-02-05 Elmer C Kiekhaefer Transom spray deflector
WO2007042483A1 (en) 2005-10-07 2007-04-19 Flexitab S.R.L. Marine drive system with partially submerged propeller
EP2389805A2 (en) 2010-05-27 2011-11-30 Becker Underwood Limited Biological control of molluscs with nematodes
CN107352009A (en) * 2017-07-12 2017-11-17 哈尔滨工程大学 Mechanical half leaching oar air-breather

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2780195A (en) * 1954-09-02 1957-02-05 Elmer C Kiekhaefer Transom spray deflector
WO2007042483A1 (en) 2005-10-07 2007-04-19 Flexitab S.R.L. Marine drive system with partially submerged propeller
EP1780117A1 (en) * 2005-10-07 2007-05-02 Flexitab S.r.l. Marine drive system with partially submerged propeller
US7993173B2 (en) 2005-10-07 2011-08-09 Flexitab S.R.L. Marine drive system with partially submerged propeller
EP2389805A2 (en) 2010-05-27 2011-11-30 Becker Underwood Limited Biological control of molluscs with nematodes
CN107352009A (en) * 2017-07-12 2017-11-17 哈尔滨工程大学 Mechanical half leaching oar air-breather

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