GB539303A - Improvements in variable pitch propellers - Google Patents

Improvements in variable pitch propellers

Info

Publication number
GB539303A
GB539303A GB435140A GB435140A GB539303A GB 539303 A GB539303 A GB 539303A GB 435140 A GB435140 A GB 435140A GB 435140 A GB435140 A GB 435140A GB 539303 A GB539303 A GB 539303A
Authority
GB
United Kingdom
Prior art keywords
blade
piston
variable pitch
pitch
secured
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
GB435140A
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.)
WILLIAM JAMES HICKLING MILLIGA
Original Assignee
WILLIAM JAMES HICKLING MILLIGA
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 WILLIAM JAMES HICKLING MILLIGA filed Critical WILLIAM JAMES HICKLING MILLIGA
Priority to GB435140A priority Critical patent/GB539303A/en
Publication of GB539303A publication Critical patent/GB539303A/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
    • B64C11/02—Hub construction
    • B64C11/04—Blade mountings
    • B64C11/06—Blade mountings for variable-pitch blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)

Abstract

539,303. Variable pitch propellers. MILLIGAN, W. J. H. March 8, 1940, No. 4351. [Class 114] In a variable pitch propeller each rotatable blade 2 has a cylindrical recess 5 formed in its root portion to accommodate a piston 6 or the like which is hydraulically operated in both directions and is connected by interfitting splines 7 to the hub 1 or to a member 3 secured thereto, and to the blade by means of helical grooves, whereby axial movement of the piston is converted into rotary movement of the blade. In the form shown, a quick-pitch thread 8 on the piston 6 meshes with a corresponding thread 9 on a core 10 secured to the blade 2. The piston 6 has a transverse partition 11 to form a pair of chambers 12, 13 which are made fluidtight by means of packing, and to and from both of which pressure fluid is supplied and withdrawn by conduits 14, 15 leading from common supply conduits 17, 16 respectively. The change in pitch may be synchronized, and made equal for all the blades, by means of a gear 18 on each blade meshing with a main gear 19.
GB435140A 1940-03-08 1940-03-08 Improvements in variable pitch propellers Expired GB539303A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB435140A GB539303A (en) 1940-03-08 1940-03-08 Improvements in variable pitch propellers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB435140A GB539303A (en) 1940-03-08 1940-03-08 Improvements in variable pitch propellers

Publications (1)

Publication Number Publication Date
GB539303A true GB539303A (en) 1941-09-04

Family

ID=9775534

Family Applications (1)

Application Number Title Priority Date Filing Date
GB435140A Expired GB539303A (en) 1940-03-08 1940-03-08 Improvements in variable pitch propellers

Country Status (1)

Country Link
GB (1) GB539303A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2415421A (en) * 1944-05-13 1947-02-11 Filippis Raymond De Adjustable propeller
US2528281A (en) * 1945-05-30 1950-10-31 Gen Motors Corp Aircraft propeller
US2573783A (en) * 1943-02-04 1951-11-06 United Aircraft Corp Propeller pitch change motor
US2747676A (en) * 1952-04-23 1956-05-29 Gen Motors Corp Propeller mechanism
US2804155A (en) * 1952-07-31 1957-08-27 Gen Motors Corp Propeller mechanism
US2948460A (en) * 1956-08-20 1960-08-09 Ladimir R Zeman Fluid actuated motion translating device

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2573783A (en) * 1943-02-04 1951-11-06 United Aircraft Corp Propeller pitch change motor
US2415421A (en) * 1944-05-13 1947-02-11 Filippis Raymond De Adjustable propeller
US2528281A (en) * 1945-05-30 1950-10-31 Gen Motors Corp Aircraft propeller
US2747676A (en) * 1952-04-23 1956-05-29 Gen Motors Corp Propeller mechanism
US2804155A (en) * 1952-07-31 1957-08-27 Gen Motors Corp Propeller mechanism
US2948460A (en) * 1956-08-20 1960-08-09 Ladimir R Zeman Fluid actuated motion translating device

Similar Documents

Publication Publication Date Title
GB539303A (en) Improvements in variable pitch propellers
GB1205246A (en) Controllable pitch propellers
GB499518A (en) Improvements in or relating to variable pitch screw propellers
GB464203A (en) Improvements in or relating to variable pitch propellers, especially for aircraft
GB423347A (en) Improvements in or relating to fluid transmission gear
FR860357A (en) Improvements to pressurized fluid rotary machines, applicable in particular to the control of aircraft propellers
CN211234180U (en) Dipperstick for building engineering
GB568531A (en) Improved operating gear for adjustable propeller blades
US1393391A (en) stanley smith cook
GB531241A (en) Improvements in or relating to variable pitch airscrews
GB711546A (en) Improvements in and relating to variable speed gears of the hydraulic type
GB523399A (en) Improvements in fluid-transmission joints
USD138104S (en) Design for an engine cylinder block
AU107591B2 (en) Improvements in or relating to rotary fluid pressure engines andthe like
GB1019663A (en) Hydrodynamic torque converter with angularly adjustable blades
GB463737A (en) Improvements in or relating to variable pitch propellers, especially for aircraft
AU225138A (en) Improvements in or relating to rotary fluid pressure engines andthe like
AU111711B2 (en) Improvements in rotary fluid pumps ofthe type employing vane propellers forthe fluid
DE753005C (en) In the stationary end cap of the hub or in the stationary bearing housing of a turbine or pump impeller arranged pressure cylinder drive for the guide vane adjustment
GB514438A (en) Improvements relating to fluid-transmission circuits in variable-pitch airscrews
GB985200A (en) Improvements in and relating to gearing
GB191226842A (en) An Improved Reversible Propeller.
AU113262B2 (en) Improvements in or relating to composite propeller blades
GB528017A (en) Improvements in or relating to rock and like drills
CA401686A (en) Composite propeller blade