GB1416616A - Foldable propeller - Google Patents

Foldable propeller

Info

Publication number
GB1416616A
GB1416616A GB4597873A GB4597873A GB1416616A GB 1416616 A GB1416616 A GB 1416616A GB 4597873 A GB4597873 A GB 4597873A GB 4597873 A GB4597873 A GB 4597873A GB 1416616 A GB1416616 A GB 1416616A
Authority
GB
United Kingdom
Prior art keywords
blades
propeller
shaft
folded
blade
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
GB4597873A
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.)
ALCOMETALLER AB
Original Assignee
ALCOMETALLER AB
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 ALCOMETALLER AB filed Critical ALCOMETALLER AB
Publication of GB1416616A publication Critical patent/GB1416616A/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
    • B63H1/20—Hubs; Blade connections
    • B63H1/22—Hubs; Blade connections the blades being foldable
    • B63H1/24—Hubs; Blade connections the blades being foldable automatically foldable or unfoldable

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Wind Motors (AREA)
  • Fluid-Damping Devices (AREA)
  • Hydraulic Turbines (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Grinding Of Cylindrical And Plane Surfaces (AREA)

Abstract

1416616 Foldable propeller ALCOMETALLER AB 2 Oct 1973 [5 Oct 1972] 45978/73 Heading B7V In a boat propeller with blades 2, 3 foldable behind the propeller shaft about an axis normal to the axis of the shaft the blades are unfolded to their operative position by centrifugal forces acting on the blades on rotation of the propeller shaft and on non-rotation of the shaft as the boat moves through the water the blades are folded astern by the action of the water. The blades in their folded position cover each other incompletely in such a way that at least one edge portion such as 11 or 12 of each blade projects over the edge of the other blade whereby, in use, when the folded propeller is rotated, water pressure is exerted against each projecting edge portion to produce an unfolding moment of force acting on the propeller blade to bias the blades to their unfolded positions.
GB4597873A 1972-10-05 1973-10-02 Foldable propeller Expired GB1416616A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE1285772A SE381234B (en) 1972-10-05 1972-10-05 FOPABLE PROPELLER

Publications (1)

Publication Number Publication Date
GB1416616A true GB1416616A (en) 1975-12-03

Family

ID=20296422

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4597873A Expired GB1416616A (en) 1972-10-05 1973-10-02 Foldable propeller

Country Status (7)

Country Link
JP (1) JPS4971692A (en)
DE (1) DE2349929A1 (en)
GB (1) GB1416616A (en)
IT (1) IT995578B (en)
NL (1) NL7313651A (en)
NO (1) NO133026C (en)
SE (1) SE381234B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001972A1 (en) * 1991-07-25 1993-02-04 Gori Af 1902 A/S A folding propeller with at least three blades
WO1997015489A1 (en) * 1995-10-25 1997-05-01 Tristream Propeller Company Pty. Ltd. An improved propeller
WO2022153106A1 (en) * 2021-01-12 2022-07-21 Atlas Diversified Products Corp. Keg stirrer and method of maintaining a liquid formulation in a mixed condition
EP4039577A1 (en) * 2021-02-08 2022-08-10 Torqeedo GmbH Collapsible propeller for an aquatic vehicle
CN114906304B (en) * 2021-02-08 2024-10-29 托奇多有限责任公司 Folding propeller for a watercraft

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DK602374A (en) * 1974-11-20 1976-05-21 Gori Vaerk As PROPELLER
JPS52144598U (en) * 1976-04-28 1977-11-01
SE7801345L (en) * 1978-02-06 1979-08-07 Hasselfors Stainless DEVICE FOR FOLDABLE PROPELLERS
SE428197B (en) * 1978-06-27 1983-06-13 Volvo Penta Ab BATTLE PROPELLERS WITH SWINGABLE LEAVES
DK168885B1 (en) * 1985-07-02 1994-07-04 Con Fol Aps Folding prop
DE102020129938A1 (en) * 2020-11-12 2022-05-12 Torqeedo Gmbh folding propeller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993001972A1 (en) * 1991-07-25 1993-02-04 Gori Af 1902 A/S A folding propeller with at least three blades
WO1997015489A1 (en) * 1995-10-25 1997-05-01 Tristream Propeller Company Pty. Ltd. An improved propeller
WO2022153106A1 (en) * 2021-01-12 2022-07-21 Atlas Diversified Products Corp. Keg stirrer and method of maintaining a liquid formulation in a mixed condition
EP4039577A1 (en) * 2021-02-08 2022-08-10 Torqeedo GmbH Collapsible propeller for an aquatic vehicle
CN114906304A (en) * 2021-02-08 2022-08-16 托奇多有限责任公司 Folding propeller for water traffic tool
CN114906304B (en) * 2021-02-08 2024-10-29 托奇多有限责任公司 Folding propeller for a watercraft

Also Published As

Publication number Publication date
NL7313651A (en) 1974-04-09
NO133026B (en) 1975-11-17
SE381234B (en) 1975-12-01
IT995578B (en) 1975-11-20
JPS4971692A (en) 1974-07-11
DE2349929A1 (en) 1974-04-11
NO133026C (en) 1980-09-17

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees