GB191017935A - Improvements in Screw Propellers. - Google Patents

Improvements in Screw Propellers.

Info

Publication number
GB191017935A
GB191017935A GB191017935DA GB191017935A GB 191017935 A GB191017935 A GB 191017935A GB 191017935D A GB191017935D A GB 191017935DA GB 191017935 A GB191017935 A GB 191017935A
Authority
GB
United Kingdom
Prior art keywords
blades
grooves
screw propellers
propellers
face
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
Inventor
James Halliday
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
Application granted granted Critical
Publication of GB191017935A publication Critical patent/GB191017935A/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
    • B63H1/28—Other means for improving propeller efficiency
    • 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

Abstract

17,935. Halliday, J. July 28. Screw propellers. -The blades of screw propellers are of approximately rectangular section with rounded corners 3<c>, the thrusting face being an untwisted plane. Transverse curved grooves 2 are formed in the face of the blades to prevent radial movement of the water. These grooves are curved eccentrically with reference to the shaft axis, and are deeper at the centre of the blade than at the edges. The grooves are about twice the radial depth of the intervening ridges, and, in some cases, are not carried out to the extreme edges. The blades may be cast with the boss, or separate from it, and may be used in feathering- propellers.
GB191017935D 1910-07-28 1910-07-28 Improvements in Screw Propellers. Expired GB191017935A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191017935T 1910-07-28

Publications (1)

Publication Number Publication Date
GB191017935A true GB191017935A (en) 1911-06-29

Family

ID=32563261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191017935D Expired GB191017935A (en) 1910-07-28 1910-07-28 Improvements in Screw Propellers.

Country Status (1)

Country Link
GB (1) GB191017935A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294175A (en) * 1965-10-11 1966-12-27 Charles H Bodner Adjustable impeller
EP0464158A1 (en) * 1989-06-30 1992-01-08 Airflow Res & Mfg Lightweight airfoil.

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3294175A (en) * 1965-10-11 1966-12-27 Charles H Bodner Adjustable impeller
EP0464158A1 (en) * 1989-06-30 1992-01-08 Airflow Res & Mfg Lightweight airfoil.
EP0464158A4 (en) * 1989-06-30 1992-03-11 Airflow Research & Manufacturing Corp. Lightweight airfoil

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