GB565898A - Improvements in devices for adjustment and control of blades of ships' propellers - Google Patents

Improvements in devices for adjustment and control of blades of ships' propellers

Info

Publication number
GB565898A
GB565898A GB923143A GB923143A GB565898A GB 565898 A GB565898 A GB 565898A GB 923143 A GB923143 A GB 923143A GB 923143 A GB923143 A GB 923143A GB 565898 A GB565898 A GB 565898A
Authority
GB
United Kingdom
Prior art keywords
shaft
nut
blades
propeller
propellers
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
GB923143A
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.)
MANGANESE BRONZE AND BRASS COM
Original Assignee
MANGANESE BRONZE AND BRASS COM
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 MANGANESE BRONZE AND BRASS COM filed Critical MANGANESE BRONZE AND BRASS COM
Priority to GB923143A priority Critical patent/GB565898A/en
Publication of GB565898A publication Critical patent/GB565898A/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
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/06—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical
    • B63H3/08—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid
    • B63H3/081—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft
    • B63H3/082—Propeller-blade pitch changing characterised by use of non-mechanical actuating means, e.g. electrical fluid actuated by control element coaxial with the propeller shaft the control element being axially reciprocatable
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H2003/004—Propeller-blade pitch changing comprising means for locking blades in position

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Transmission Devices (AREA)
  • Braking Arrangements (AREA)

Abstract

565,898. Screw propellers. McNAB, N. S., and MANGANESE BRONZE & BRASS CO., Ltd. June 8, 1943, No. 9231. [Class 114] The pitch of a ship's propeller is varied by a hydraulically-actuated piston 1 fixed to a shaft 2 slidable in the hollow propeller shaft 4, and is held locked in its new position after the hydraulic pump has been cut out of action by a nut 21 on a screwed portion of the shaft 2. The nut is such that it cannot be driven by the shaft and so must be rotated when it is desired to change the pitch simultaneously with admission of fluid pressure to one side or other of the piston. The rotation of the nut may be effected manually if the propeller shaft is at rest, or, when it is rotating by bringing one or other of two braking elements 18, 19 into engagement with one of two drums 5, 6 that have toothed surfaces 10, 9 engaging a planet wheel 11 connected through gearing to the nut 21. The longitudinal movement of the shaft 2 turns the blades 29 by means of links 30 connected to crank-pins 27 on the blade bosses.
GB923143A 1943-06-08 1943-06-08 Improvements in devices for adjustment and control of blades of ships' propellers Expired GB565898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB923143A GB565898A (en) 1943-06-08 1943-06-08 Improvements in devices for adjustment and control of blades of ships' propellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB923143A GB565898A (en) 1943-06-08 1943-06-08 Improvements in devices for adjustment and control of blades of ships' propellers

Publications (1)

Publication Number Publication Date
GB565898A true GB565898A (en) 1944-12-04

Family

ID=9867930

Family Applications (1)

Application Number Title Priority Date Filing Date
GB923143A Expired GB565898A (en) 1943-06-08 1943-06-08 Improvements in devices for adjustment and control of blades of ships' propellers

Country Status (1)

Country Link
GB (1) GB565898A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2412410A (en) * 2004-03-16 2005-09-28 Christopher Flint Variable propeller blade pitch mechanism
WO2018234328A1 (en) 2017-06-19 2018-12-27 Rolls-Royce Marine As Rotary actuator, variable pitch hub, propeller mount

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2412410A (en) * 2004-03-16 2005-09-28 Christopher Flint Variable propeller blade pitch mechanism
GB2412410B (en) * 2004-03-16 2008-01-02 Christopher Flint Variable pitch propeller mechanism
WO2018234328A1 (en) 2017-06-19 2018-12-27 Rolls-Royce Marine As Rotary actuator, variable pitch hub, propeller mount

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