GB567372A - Improvements in or relating to airscrews - Google Patents

Improvements in or relating to airscrews

Info

Publication number
GB567372A
GB567372A GB321743A GB321743A GB567372A GB 567372 A GB567372 A GB 567372A GB 321743 A GB321743 A GB 321743A GB 321743 A GB321743 A GB 321743A GB 567372 A GB567372 A GB 567372A
Authority
GB
United Kingdom
Prior art keywords
sleeve
spring
blades
pitch
screw
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
GB321743A
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.)
RAYMOND CLAUD STAFFORD ALLEN
Original Assignee
RAYMOND CLAUD STAFFORD ALLEN
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 RAYMOND CLAUD STAFFORD ALLEN filed Critical RAYMOND CLAUD STAFFORD ALLEN
Priority to GB321743A priority Critical patent/GB567372A/en
Publication of GB567372A publication Critical patent/GB567372A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Wind Motors (AREA)

Abstract

567,372. Screw propellers. ALLEN, R. C. S. Feb. 26, 1943, No. 3217. [Class 114] The pitch of the blades 15 of an air-screw is automatically adjusted by centrifugal force acting on weights 16 which tends to rotate the blades in a pitch-coarsening direction against the action of a spring 21 contained within the hub 10. The spring 21 presses to the left a sleeve 17 which engages an eccentricallymounted pin 20 on the blade, and the strength of the spring is adjusted by moving a collar 22 by means of a sleeve 31 which is itself moved rectilinearly by rotation of a sleeve 26 by a worm 28 which is rotated by hand or by a motor.
GB321743A 1943-02-26 1943-02-26 Improvements in or relating to airscrews Expired GB567372A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB321743A GB567372A (en) 1943-02-26 1943-02-26 Improvements in or relating to airscrews

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB321743A GB567372A (en) 1943-02-26 1943-02-26 Improvements in or relating to airscrews

Publications (1)

Publication Number Publication Date
GB567372A true GB567372A (en) 1945-02-12

Family

ID=9754161

Family Applications (1)

Application Number Title Priority Date Filing Date
GB321743A Expired GB567372A (en) 1943-02-26 1943-02-26 Improvements in or relating to airscrews

Country Status (1)

Country Link
GB (1) GB567372A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321023A (en) * 1965-02-23 1967-05-23 Dowty Rotol Ltd Variable pitch propellers
US4179241A (en) * 1977-10-31 1979-12-18 High Harbin Full feathering, reversible pitch, constant RPM propeller
US5326223A (en) * 1988-07-07 1994-07-05 Speer Stephen R Automatic variable pitch marine propeller with mechanical holding means

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3321023A (en) * 1965-02-23 1967-05-23 Dowty Rotol Ltd Variable pitch propellers
US4179241A (en) * 1977-10-31 1979-12-18 High Harbin Full feathering, reversible pitch, constant RPM propeller
US5326223A (en) * 1988-07-07 1994-07-05 Speer Stephen R Automatic variable pitch marine propeller with mechanical holding means

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