GB496750A - Automatic pitch regulating device for screw propellers - Google Patents

Automatic pitch regulating device for screw propellers

Info

Publication number
GB496750A
GB496750A GB656537A GB656537A GB496750A GB 496750 A GB496750 A GB 496750A GB 656537 A GB656537 A GB 656537A GB 656537 A GB656537 A GB 656537A GB 496750 A GB496750 A GB 496750A
Authority
GB
United Kingdom
Prior art keywords
blade
screw propellers
offset
axis
ahead
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
GB656537A
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.)
DANIEL O LEARY
Original Assignee
DANIEL O LEARY
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 DANIEL O LEARY filed Critical DANIEL O LEARY
Priority to GB656537A priority Critical patent/GB496750A/en
Publication of GB496750A publication Critical patent/GB496750A/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
    • B64C11/32—Blade pitch-changing mechanisms mechanical
    • B64C11/36—Blade pitch-changing mechanisms mechanical non-automatic

Abstract

496,750. Screw propellers. O'LEARY, D. March 5, 1937, No. 6565. [Class 114] Automatically adjustable blades of screw propellers wherein the blade axes intersect the neutral axes in a common point on the propeller axis a are disposed so that the blade mounting axis b is offset ahead of and at an angle to the perpendicular d and the neutral axis c is offset behind b but ahead of d and the two angles bvc, and cod of offset are equal. Each blade 3 is mounted eccentrically in a block 1 carried by sockets 2 on a boss 4. Each blade has a locking device comprising a pivoted lever 8 having a weighted end 9, a spring restraint 10, and a catch end 11 adapted to enter a depression 12 in the blade block 1. The lock is released when at a predetermined speed centrifugal force on the weight 9 is sufficient to overcome the spring 10. Specification 441,738 is referred to.
GB656537A 1937-03-05 1937-03-05 Automatic pitch regulating device for screw propellers Expired GB496750A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB656537A GB496750A (en) 1937-03-05 1937-03-05 Automatic pitch regulating device for screw propellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB656537A GB496750A (en) 1937-03-05 1937-03-05 Automatic pitch regulating device for screw propellers

Publications (1)

Publication Number Publication Date
GB496750A true GB496750A (en) 1938-12-05

Family

ID=9816824

Family Applications (1)

Application Number Title Priority Date Filing Date
GB656537A Expired GB496750A (en) 1937-03-05 1937-03-05 Automatic pitch regulating device for screw propellers

Country Status (1)

Country Link
GB (1) GB496750A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416516A (en) * 1939-08-26 1947-02-25 Everel Propeller Corp Variable pitch propeller
US2423752A (en) * 1942-10-02 1947-07-08 Biermann David Airscrew
US2477944A (en) * 1947-07-19 1949-08-02 Edward H Rouse Adjustable pitch propeller
US2570484A (en) * 1948-04-29 1951-10-09 Paul J Quinn Variable pitch propeller
US2660252A (en) * 1946-05-09 1953-11-24 Onera (Off Nat Aerospatiale) Variable pitch screw propeller articulated blade mounting
US4929153A (en) * 1988-07-07 1990-05-29 Nautical Development, Inc. Self-actuating variable pitch marine propeller

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2416516A (en) * 1939-08-26 1947-02-25 Everel Propeller Corp Variable pitch propeller
US2423752A (en) * 1942-10-02 1947-07-08 Biermann David Airscrew
US2660252A (en) * 1946-05-09 1953-11-24 Onera (Off Nat Aerospatiale) Variable pitch screw propeller articulated blade mounting
US2477944A (en) * 1947-07-19 1949-08-02 Edward H Rouse Adjustable pitch propeller
US2570484A (en) * 1948-04-29 1951-10-09 Paul J Quinn Variable pitch propeller
US4929153A (en) * 1988-07-07 1990-05-29 Nautical Development, Inc. Self-actuating variable pitch marine propeller

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