GB838868A - Screw propeller - Google Patents

Screw propeller

Info

Publication number
GB838868A
GB838868A GB32265/58A GB3226558A GB838868A GB 838868 A GB838868 A GB 838868A GB 32265/58 A GB32265/58 A GB 32265/58A GB 3226558 A GB3226558 A GB 3226558A GB 838868 A GB838868 A GB 838868A
Authority
GB
United Kingdom
Prior art keywords
blade
outer end
edge
nearest
rear edge
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
GB32265/58A
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 GB838868A publication Critical patent/GB838868A/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
    • B63H1/26—Blades

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

838,868. Screw propellers. VAGHI, J. Oct. 9, 1958 [Feb. 12, 1958], No. 32265/58. Class 114. In a propeller having a hut 10 from which blades extend ir radial direction, each blade has. a straight leading edge 11 and a rear edge 12 including convexly concavely curved continuous portions 13, 14 extending between the hub and the outer end of the blade, concave de pressions 15, 21 being formed ir the blade and (depression 15 extending from the rear edge 12 across the rear surface of the blade at that portion (13 nearest the outer end of the blade and (depression 21) across the forward surface at another portion (14) of the blade, saic depressions gradually decreasing in depth from the rear edge 12 to adjacent said leading edge 11, said portion 13 nearest the outer end of the blade as well as said other portion 14 of the blade being formed with a convex ridge 17 and 23 respectively extending from the rear edge 12 across the blade and decreasing in height to adjacent the straight edge 11, the convex ridge 17 being formed in the forward surface of said portion 13 nearest the outer end of the blade and (convex ridge 23) in said rear surface of said other portion 14, said blades being feathered so as to be inclined to a plane at right angles to the axis of rotation.
GB32265/58A 1958-02-12 1958-10-09 Screw propeller Expired GB838868A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US838868XA 1958-02-12 1958-02-12

Publications (1)

Publication Number Publication Date
GB838868A true GB838868A (en) 1960-06-22

Family

ID=22181303

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32265/58A Expired GB838868A (en) 1958-02-12 1958-10-09 Screw propeller

Country Status (1)

Country Link
GB (1) GB838868A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886421A (en) * 1984-01-09 1989-12-12 Wind Feather, United Science Asc. Wind turbine air foil
WO2020077520A1 (en) * 2018-10-16 2020-04-23 Hewlett-Packard Development Company, L.P. Impellers

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4886421A (en) * 1984-01-09 1989-12-12 Wind Feather, United Science Asc. Wind turbine air foil
WO2020077520A1 (en) * 2018-10-16 2020-04-23 Hewlett-Packard Development Company, L.P. Impellers

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