GB514242A - Improved shaftless screw propeller - Google Patents

Improved shaftless screw propeller

Info

Publication number
GB514242A
GB514242A GB10002/39A GB1000239A GB514242A GB 514242 A GB514242 A GB 514242A GB 10002/39 A GB10002/39 A GB 10002/39A GB 1000239 A GB1000239 A GB 1000239A GB 514242 A GB514242 A GB 514242A
Authority
GB
United Kingdom
Prior art keywords
ring
screw propeller
blades
improved
gearing
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
GB10002/39A
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.)
HENRY WEISSMAN
Original Assignee
HENRY WEISSMAN
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 HENRY WEISSMAN filed Critical HENRY WEISSMAN
Publication of GB514242A publication Critical patent/GB514242A/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
    • 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
    • B63H1/16—Propellers having a shrouding ring attached to blades
    • B63H2001/165—Hubless propellers, e.g. peripherally driven shrouds with blades projecting from the shrouds' inside surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

514,242. Screw propellers. WEISSMAN, H. March 30, 1939, No. 10002. Convention date, April 6, 1938. [Class 114] A screw propeller is constituted by an outer rotatable ring which carries internal screw blades that project inwardly by an amount less than the radius of the ring. To ring'5 is'bolted a number of blades 4 of which the leading edge extends radially inward further than the trailing edge. ' The leading edge slopes inwardly whilst the trailing edge slopes outwardly from the body of the blade. The rotatable ring member is provided with a gearing 36 which meshes with corresponding gearing 33 upon a driving shaft 32. The ring is mounted in ball races 22 within a two-part support 21 which is carried at its inner end by the hull 1 of the ship and its outer end by strut members 28.
GB10002/39A 1938-04-06 1939-03-30 Improved shaftless screw propeller Expired GB514242A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US514242XA 1938-04-06 1938-04-06

Publications (1)

Publication Number Publication Date
GB514242A true GB514242A (en) 1939-11-02

Family

ID=21971220

Family Applications (1)

Application Number Title Priority Date Filing Date
GB10002/39A Expired GB514242A (en) 1938-04-06 1939-03-30 Improved shaftless screw propeller

Country Status (1)

Country Link
GB (1) GB514242A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4941802A (en) * 1989-06-02 1990-07-17 Ross John C Multi-bladed propulsion apparatus
GB2264983A (en) * 1992-03-03 1993-09-15 Nathan Aldred Wright Propeller to delay the onset of cavitation.
GB2423509B (en) * 2005-02-25 2007-11-14 Boeing Co Aircraft capable of vertical and short take-off and landing

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4941802A (en) * 1989-06-02 1990-07-17 Ross John C Multi-bladed propulsion apparatus
GB2264983A (en) * 1992-03-03 1993-09-15 Nathan Aldred Wright Propeller to delay the onset of cavitation.
GB2423509B (en) * 2005-02-25 2007-11-14 Boeing Co Aircraft capable of vertical and short take-off and landing

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