GB189158A - An improved construction of screw propeller - Google Patents

An improved construction of screw propeller

Info

Publication number
GB189158A
GB189158A GB14536/21A GB1453621A GB189158A GB 189158 A GB189158 A GB 189158A GB 14536/21 A GB14536/21 A GB 14536/21A GB 1453621 A GB1453621 A GB 1453621A GB 189158 A GB189158 A GB 189158A
Authority
GB
United Kingdom
Prior art keywords
blades
series
edges
directed
screw propeller
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
GB14536/21A
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.)
CONRAD VAUGHAN TRELEAVEN
Original Assignee
CONRAD VAUGHAN TRELEAVEN
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 CONRAD VAUGHAN TRELEAVEN filed Critical CONRAD VAUGHAN TRELEAVEN
Priority to GB14536/21A priority Critical patent/GB189158A/en
Publication of GB189158A publication Critical patent/GB189158A/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
    • B63H1/15—Propellers having vibration damping means
    • 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
    • B63H2001/145—Propellers comprising blades of two or more different types, e.g. different lengths
    • 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
    • B63H2001/283—Propeller hub caps with fins having a pitch different from pitch of propeller blades, or a helix hand opposed to the propellers' helix hand
    • 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
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type
    • B63H2005/103—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type of co-rotative type, i.e. rotating in the same direction, e.g. twin propellers

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

189,158. Treleaven, C. V. May 25, 1921. Screw propellers having two sets of oppositely directed blades are constructed with the tips of the forward series 1 directed astern, and the tips of the after series 2 directed forward, and with the trailing edges 5 of one series overlapping to the extent of one-third the area, the leading edges 6 of the other series. The forward blades are in a plane normal to the shaft, and the aft blades inclined astern at approximately 62‹. The leading edges 4 of the blades 1 and trailing edges 7 of the blades 2 are convex and the other edges 5, 6 concave. The blades are of concavoconvex cross section with the convex surface on the front.
GB14536/21A 1921-05-25 1921-05-25 An improved construction of screw propeller Expired GB189158A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB14536/21A GB189158A (en) 1921-05-25 1921-05-25 An improved construction of screw propeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB14536/21A GB189158A (en) 1921-05-25 1921-05-25 An improved construction of screw propeller

Publications (1)

Publication Number Publication Date
GB189158A true GB189158A (en) 1922-11-27

Family

ID=10042958

Family Applications (1)

Application Number Title Priority Date Filing Date
GB14536/21A Expired GB189158A (en) 1921-05-25 1921-05-25 An improved construction of screw propeller

Country Status (1)

Country Link
GB (1) GB189158A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034059B (en) * 1954-01-07 1958-07-10 Eta Corp G M B H Propeller or conveyor screw, especially marine propeller
US20150360760A1 (en) * 2013-02-08 2015-12-17 Samsung Heavy Ind. Co., Ltd. Propulsion device for ship

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1034059B (en) * 1954-01-07 1958-07-10 Eta Corp G M B H Propeller or conveyor screw, especially marine propeller
US20150360760A1 (en) * 2013-02-08 2015-12-17 Samsung Heavy Ind. Co., Ltd. Propulsion device for ship
US10040528B2 (en) * 2013-02-08 2018-08-07 Samsung Heavy Ind. Co., Ltd. Propulsion device for ship

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