GB165132A - Improvements in and relating to screw propellers - Google Patents

Improvements in and relating to screw propellers

Info

Publication number
GB165132A
GB165132A GB147620A GB147620A GB165132A GB 165132 A GB165132 A GB 165132A GB 147620 A GB147620 A GB 147620A GB 147620 A GB147620 A GB 147620A GB 165132 A GB165132 A GB 165132A
Authority
GB
United Kingdom
Prior art keywords
boss
cam
sliding
motor
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
GB147620A
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
Priority to GB147620A priority Critical patent/GB165132A/en
Publication of GB165132A publication Critical patent/GB165132A/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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/02—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary

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)

Abstract

165,132. Vessey, E. A. Jan. 16,1920. Screw propellers.-Relates to variable-pitch marine propellers in which the blades are adjusted by a turning and sliding movement under controlled centrifugal forces and a sliding ring on the propeller shaft, and consists in actuating the ring without thrust bearings running in water. Further cam elements for actuating the sliding ring and a reduction gear may be arranged in the propeller boss or in the ship, and in actuating the gear by an electric motor in the boss or in the ship or by a steam-engine on the ship. The hub bosses receive sockets 2 on the blades 1, Fig. 1, which have screw elements 3 connected by adjustable tie members 15 with a ring 7 slidable on the boss spigot 6. A balancing-spring 25 is fitted over the sleeve 7 which also has an extension 20 to which the control rod 22 is attached. Inboard, the rod 22 has a cross-arm 29. Fig. 3, which extends through slots 27 in the hollow propeller shaft 26, and is pinned to a sleeve 32 capable of sliding on or rotating with the shaft. For moving the sleeve 32 and rod axially, a non-rotating cam 33 is placed adjacent to a second cam 36, which rotates in the fixed bracket 35 but does not slide. This cam can be rotated by gears 39, 38 by an electric motor 44 or other prime mover. In a modification, the motor 52, Fig. 5, is attached to the hub, and the epicyclic gears 51 and cam-sleeves are placed on the boss. Electric leads 55 pass from the motor, through the propeller shaft to a number of copper rings thereon and thence by slip rings and leads to an inboard control position. In a further modification, the electric motor on the boss is replaced by a differential gear which is actuated by a prime mover on the deck, or by hand, through a shaft and gearing attached to the rudder post. The sliding collar may also be directly acted by hydraulic rams, or by a hydraulic motor in the hub. Where no change of pitch is required, the screw members on the blades are replaced by straight keys so that only the diameter of the propeller is altered. Specifications 130,349 and 132,316 are referred to.
GB147620A 1920-01-16 1920-01-16 Improvements in and relating to screw propellers Expired GB165132A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB147620A GB165132A (en) 1920-01-16 1920-01-16 Improvements in and relating to screw propellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB147620A GB165132A (en) 1920-01-16 1920-01-16 Improvements in and relating to screw propellers

Publications (1)

Publication Number Publication Date
GB165132A true GB165132A (en) 1921-06-16

Family

ID=9722650

Family Applications (1)

Application Number Title Priority Date Filing Date
GB147620A Expired GB165132A (en) 1920-01-16 1920-01-16 Improvements in and relating to screw propellers

Country Status (1)

Country Link
GB (1) GB165132A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012022501A1 (en) * 2010-08-17 2012-02-23 Siemens Aktiengesellschaft Variable-pitch propeller or repeller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012022501A1 (en) * 2010-08-17 2012-02-23 Siemens Aktiengesellschaft Variable-pitch propeller or repeller
CN103038130A (en) * 2010-08-17 2013-04-10 西门子公司 Variable-pitch propeller or repeller
JP2013539433A (en) * 2010-08-17 2013-10-24 シーメンス アクチエンゲゼルシヤフト Variable pitch propeller or repeller
AU2011290961B2 (en) * 2010-08-17 2014-02-27 Siemens Aktiengesellschaft Variable-pitch propeller or repeller
CN103038130B (en) * 2010-08-17 2015-09-16 西门子公司 Adjustable propelling unit or adjustable anti-thruster
US9476311B2 (en) 2010-08-17 2016-10-25 Siemens Aktiengesellschaft Variable-pitch propeller or repeller

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