GB1152988A – Improvements relating to Controllable-Pitch Propellor Assemblies
– Google Patents
GB1152988A – Improvements relating to Controllable-Pitch Propellor Assemblies
– Google Patents
Improvements relating to Controllable-Pitch Propellor Assemblies
Info
Publication number
GB1152988A
GB1152988A
GB45446/66A
GB4544666A
GB1152988A
GB 1152988 A
GB1152988 A
GB 1152988A
GB 45446/66 A
GB45446/66 A
GB 45446/66A
GB 4544666 A
GB4544666 A
GB 4544666A
GB 1152988 A
GB1152988 A
GB 1152988A
Authority
GB
United Kingdom
Prior art keywords
pitch
screw
nut
plunger
vary
Prior art date
1965-10-19
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
GB45446/66A
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.)
Avco Corp
Original Assignee
Avco 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.)
1965-10-19
Filing date
1966-10-11
Publication date
1969-05-21
1966-10-11
Application filed by Avco Corp
filed
Critical
Avco Corp
1969-05-21
Publication of GB1152988A
publication
Critical
patent/GB1152988A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
F16H—GEARING
F16H25/00—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms
F16H25/18—Gearings comprising primarily only cams, cam-followers and screw-and-nut mechanisms for conveying or interconverting oscillating or reciprocating motions
F16H25/20—Screw mechanisms
F16H25/2018—Screw mechanisms with both screw and nut being driven, i.e. screw and nut are both rotating
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
B63H3/04—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary the control element being reciprocatable
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
B64—AIRCRAFT; AVIATION; COSMONAUTICS
B64C—AEROPLANES; HELICOPTERS
B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
B64C11/30—Blade pitch-changing mechanisms
B64C11/32—Blade pitch-changing mechanisms mechanical
B64C11/36—Blade pitch-changing mechanisms mechanical non-automatic
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T74/00—Machine element or mechanism
Y10T74/17—Rotary driven device adjustable during operation relative to its supporting structure
Y10T74/173—Screw and nut adjusting means
Abstract
1,152,988. Variable pitch propellers. AVCO CORP. 11 Oct., 1966 [19 Oct., 1965], No. 45446/66. Heading B7V. [Also in Division F2] The pitch of a ship’s propeller blades is varied by a screw-and-nut mechanism 44, 49 which axially moves a plunger 39 connected by rods 61 to propeller blade shafts 60 so that axial movement of the plunger 39 rotates the shafts 60 to vary the pitch of the blades. When the propeller is rotating at an adjusted pitch the screw 44 and nut 49 are driven from the hub 31 through slip couplings 42, 51 and thus no relative motion occurs. To vary the pitch in one direction a brake 58 holds the nut 49 whilst the screw is driven through the coupling 42 and thus screws through the nut 49 and moves the plunger 39 axially. To vary the pitch in the opposite direction a brake 56 holds a disc 48 keyed to the screw 44 whilst the nut is driven through the slip coupling 51 to move the screw and plunger 39 in the opposite direction. The brakes 56, 58 are fluid pressure operated.
GB45446/66A
1965-10-19
1966-10-11
Improvements relating to Controllable-Pitch Propellor Assemblies
Expired
GB1152988A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US497944A
US3362479A
(en)
1965-10-19
1965-10-19
Drive shaft assembly
Publications (1)
Publication Number
Publication Date
GB1152988A
true
GB1152988A
(en)
1969-05-21
Family
ID=23978978
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB45446/66A
Expired
GB1152988A
(en)
1965-10-19
1966-10-11
Improvements relating to Controllable-Pitch Propellor Assemblies
Country Status (5)
Country
Link
US
(1)
US3362479A
(en)
DE
(1)
DE1550646B1
(en)
GB
(1)
GB1152988A
(en)
NO
(1)
NO123164B
(en)
SE
(1)
SE345106B
(en)
Families Citing this family (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
DE4231814C1
(en)
*
1992-09-23
1994-01-20
Landolt Alexander Dr
Variable pitch propeller, especially for pleasure boats
CN107339254B
(en)
*
2017-06-20
2023-07-04
广东河海泵业机械有限公司
Water pump blade angle in-service adjusting device based on tooth difference driving
CN109278985B
(en)
*
2018-11-20
2023-09-29
西安君晖航空科技有限公司
Pitch variable device and installation method thereof
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US2423191A
(en)
*
1942-06-18
1947-07-01
Kopp Jean
Control apparatus for variable pitch propeller adjusting devices
US2711796A
(en)
*
1950-02-23
1955-06-28
Amiot Felix
Variable pitch propeller mechanism
FR1225562A
(en)
*
1958-06-02
1960-07-01
Hydraulic machine blade adjustment device
1965
1965-10-19
US
US497944A
patent/US3362479A/en
not_active
Expired – Lifetime
1966
1966-10-11
GB
GB45446/66A
patent/GB1152988A/en
not_active
Expired
1966-10-13
NO
NO165126A
patent/NO123164B/no
unknown
1966-10-17
DE
DE19661550646
patent/DE1550646B1/en
active
Pending
1966-10-19
SE
SE14187/66A
patent/SE345106B/xx
unknown
Also Published As
Publication number
Publication date
US3362479A
(en)
1968-01-09
NO123164B
(en)
1971-10-04
SE345106B
(en)
1972-05-15
DE1550646B1
(en)
1971-01-21
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(en)
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(en)
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Legal Events
Date
Code
Title
Description
1969-10-01
PS
Patent sealed [section 19, patents act 1949]
1974-05-08
PLNP
Patent lapsed through nonpayment of renewal fees
