GB1314958A - Foldable marine propellers - Google Patents

Foldable marine propellers

Info

Publication number
GB1314958A
GB1314958A GB631872A GB631872A GB1314958A GB 1314958 A GB1314958 A GB 1314958A GB 631872 A GB631872 A GB 631872A GB 631872 A GB631872 A GB 631872A GB 1314958 A GB1314958 A GB 1314958A
Authority
GB
United Kingdom
Prior art keywords
magnets
blades
held
propeller
nut
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
GB631872A
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.)
MICHIGAN SHEEL CORP
Original Assignee
MICHIGAN SHEEL CORP
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 MICHIGAN SHEEL CORP filed Critical MICHIGAN SHEEL CORP
Publication of GB1314958A publication Critical patent/GB1314958A/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)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

1314958 Marine propellers MICHIGAN WHEEL CORP 10 Feb 1972 [14 May 1971] 6318/72 Heading B7V The blades 14 and 16 of a foldable propeller for providing auxiliary yacht propulsion are held together in their folded position by magnets 50. The blades extend to their Fig. 1 position under the influence of centrifugal force when the propeller is driven. The blades are shaped so that in their folded position they mate to provide a smooth outer surface giving low flow resistance. The magnets are held in blade recesses by an epoxy glue which also covers the exposed surfaces of the magnets to protect them against corrosion. The propeller hub is held on its drive shaft 18 by a nut which engages the screw threaded end of the shaft and which seats against a shoulder 26. The nut is locked in place by a cotter pin.
GB631872A 1971-05-14 1972-02-10 Foldable marine propellers Expired GB1314958A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US14351071A 1971-05-14 1971-05-14

Publications (1)

Publication Number Publication Date
GB1314958A true GB1314958A (en) 1973-04-26

Family

ID=22504399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB631872A Expired GB1314958A (en) 1971-05-14 1972-02-10 Foldable marine propellers

Country Status (2)

Country Link
US (1) US3715171A (en)
GB (1) GB1314958A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3891347A (en) * 1974-06-10 1975-06-24 Marcellus L Jacobs Clutch-controlled, wind-operated, power producing propeller
US3982853A (en) * 1975-07-23 1976-09-28 David Walter Beck Folding boat propeller
SE7808462L (en) * 1978-08-08 1980-02-09 Kesol Bat Ab SEAL BATTERY MANUAL DEVICE
JPS59183085A (en) * 1983-04-01 1984-10-18 Yamaha Motor Co Ltd Windmill equipped with rotating speed control device for rotor
US4797600A (en) * 1987-11-27 1989-01-10 General Motors Corporation Magnetic drive control system for a multiple cooling fan installation
US6393208B1 (en) * 2000-08-14 2002-05-21 Daniel M. Nosenchuck Compressor with integrated impeller and motor
US20070247968A1 (en) * 2006-04-21 2007-10-25 V & P Scientific, Inc. Sandwich magnetic stir elements for stirring the contents of vessels
US20210179243A1 (en) * 2019-12-13 2021-06-17 Current Power Energy Systems, Inc. Current power energy systems

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3255826A (en) * 1964-10-12 1966-06-14 Aerolab Dev Co Boat propeller
US3591311A (en) * 1969-08-18 1971-07-06 Frank W Butler Propeller assembly

Also Published As

Publication number Publication date
US3715171A (en) 1973-02-06

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLE Entries relating assignments, transmissions, licences in the register of patents
PCNP Patent ceased through non-payment of renewal fee