GB240470A - Improvements in or relating to the propulsion of boats - Google Patents

Improvements in or relating to the propulsion of boats

Info

Publication number
GB240470A
GB240470A GB23772/25A GB2377225A GB240470A GB 240470 A GB240470 A GB 240470A GB 23772/25 A GB23772/25 A GB 23772/25A GB 2377225 A GB2377225 A GB 2377225A GB 240470 A GB240470 A GB 240470A
Authority
GB
United Kingdom
Prior art keywords
wave
propeller
stern
crest
semi
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
GB23772/25A
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
Publication of GB240470A publication Critical patent/GB240470A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/32—Other means for varying the inherent hydrodynamic characteristics of hulls
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T70/00—Maritime or waterways transport
    • Y02T70/10—Measures concerning design or construction of watercraft hulls

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Mixers Of The Rotary Stirring Type (AREA)

Abstract

240,470. Hickman, W. A. Sept. 25, 1924, [Convention date]. Screw propellers. - A hydroplane or high speed motor boat having a hull formed to produce a rearwardly directed rising wave has its semi-submerged propeller placed beyond the stern at a position approximating to the crest of the wave. Deflector plates may be attached to the stern to divide the wave and keep it clear of the shaft and propeller boss. The hull 7, Fig. 1, has an inverted V-shaped bottom 9 gradually flattening toward the aft end and carries on a framework the semi-submerged propeller 15, the overhang of the propeller being substantially at the position of the crest of the wave running from the bottom. To keep the shaft, boss and bracket clear of water under all speed conditions, the wave may be divided by deflector surfaces 19, Fig. 4, which are supported from the stem 11 and constitute upwardly inclined extensions of the bottom 13.
GB23772/25A 1924-09-25 1925-09-23 Improvements in or relating to the propulsion of boats Expired GB240470A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US240470XA 1924-09-25 1924-09-25

Publications (1)

Publication Number Publication Date
GB240470A true GB240470A (en) 1927-01-24

Family

ID=21818588

Family Applications (1)

Application Number Title Priority Date Filing Date
GB23772/25A Expired GB240470A (en) 1924-09-25 1925-09-23 Improvements in or relating to the propulsion of boats

Country Status (1)

Country Link
GB (1) GB240470A (en)

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