FR861925A - Improvements to variable-pitch propeller mechanisms - Google Patents

Improvements to variable-pitch propeller mechanisms

Info

Publication number
FR861925A
FR861925A FR861925DA FR861925A FR 861925 A FR861925 A FR 861925A FR 861925D A FR861925D A FR 861925DA FR 861925 A FR861925 A FR 861925A
Authority
FR
France
Prior art keywords
variable
pitch propeller
propeller mechanisms
mechanisms
pitch
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
Other languages
French (fr)
Inventor
Walter Scott Hoover
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 filed Critical
Application granted granted Critical
Publication of FR861925A publication Critical patent/FR861925A/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
    • B64C11/306—Blade pitch-changing mechanisms specially adapted for contrarotating propellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
FR861925D 1939-06-13 1939-11-28 Improvements to variable-pitch propeller mechanisms Expired FR861925A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US278860A US2470560A (en) 1939-06-13 1939-06-13 Oppositely rotating propellers

Publications (1)

Publication Number Publication Date
FR861925A true FR861925A (en) 1941-02-21

Family

ID=23066680

Family Applications (1)

Application Number Title Priority Date Filing Date
FR861925D Expired FR861925A (en) 1939-06-13 1939-11-28 Improvements to variable-pitch propeller mechanisms

Country Status (2)

Country Link
US (1) US2470560A (en)
FR (1) FR861925A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2619182A (en) * 1945-08-09 1952-11-25 United Aircraft Corp Propeller control
US2623601A (en) * 1950-03-14 1952-12-30 United Aircraft Corp Propeller blade preloading and fluid transfer mechanism
US4730795A (en) * 1984-03-26 1988-03-15 David Constant V Heliplane
KR900004060B1 (en) * 1985-11-08 1990-06-11 미쯔비시주우고오교오 가부시기가이샤 Stern tube bearing system of contra-rotating propeller
JPS62110595A (en) * 1985-11-08 1987-05-21 Mitsubishi Heavy Ind Ltd Stern tube bearing for double reversal propeller
WO1996007832A1 (en) * 1994-09-08 1996-03-14 Kawasaki Jukogyo Kabushiki Kaisha Reversing bearing device for double reversing propeller
US5954479A (en) * 1996-12-16 1999-09-21 Smith; Ronald A. Twin engine, coaxial, dual-propeller propulsion system
CN100414164C (en) * 2004-01-20 2008-08-27 郑红专 Oil balance device and shaft using oil balance device

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1084806A (en) * 1911-01-30 1914-01-20 Henry Bertram Lister Aerial motor-vehicle.
GB332088A (en) * 1929-08-08 1930-07-17 Robert Henry Jarrett Knott Vertical screw for use on aircraft
US1804311A (en) * 1929-08-09 1931-05-05 Charley L Brown Aircraft motor and mounting
US1952066A (en) * 1930-10-27 1934-03-27 Eclipse Aviat Corp Propeller
US1946614A (en) * 1931-12-21 1934-02-13 Milford L Darr Helicopter
US2088255A (en) * 1932-11-22 1937-07-27 Adams Herbert Luther Compression propeller
US2032790A (en) * 1934-04-21 1936-03-03 Brown Joseph Franklin Propeller
US2026814A (en) * 1934-06-06 1936-01-07 United Aircraft Corp Propeller control mechanism
DE659957C (en) * 1934-10-06 1938-05-14 Focke Wulf Flugzeugbau G M B H Steep screwdriver with two rotating stars that automatically change from helical to lifting screw action
US2123057A (en) * 1936-02-29 1938-07-05 United Aircraft Corp Oppositely rotating coaxial propellers
US2132481A (en) * 1936-04-25 1938-10-11 United Aircraft Corp Propeller drive for coaxial oppositely rotating propellers
US2105089A (en) * 1936-05-07 1938-01-11 United Aircraft Corp Mechanical syncrronizing device
US2081946A (en) * 1936-05-21 1937-06-01 United Aircraft Corp Hydraulic engine controlling device
US2144429A (en) * 1936-07-30 1939-01-17 United Aircraft Corp Electrical engine control mechanism
US2280654A (en) * 1937-06-23 1942-04-21 Messerschmitt Boelkow Blohm Control of adjustable screw propellers
US2224177A (en) * 1937-11-06 1940-12-10 Algarsson Grettir Synchronizing mechanism for aircraft engines
US2276663A (en) * 1938-06-08 1942-03-17 Mercier Pierre Ernest Airscrew system
US2228638A (en) * 1938-08-17 1941-01-14 Mercier Pierre Ernest Airscrew system
US2216013A (en) * 1938-08-31 1940-09-24 Clarence E Kenney Torque balancing mechanism

Also Published As

Publication number Publication date
US2470560A (en) 1949-05-17

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