GB287879A - - Google Patents

Info

Publication number
GB287879A
GB287879A GB9306/28A GB930628A GB287879A GB 287879 A GB287879 A GB 287879A GB 9306/28 A GB9306/28 A GB 9306/28A GB 930628 A GB930628 A GB 930628A GB 287879 A GB287879 A GB 287879A
Authority
GB
United Kingdom
Prior art keywords
blades
boss
hinged
metal plate
dash
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
GB9306/28A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB287879A publication Critical patent/GB287879A/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
    • B64C11/34—Blade pitch-changing mechanisms mechanical automatic
    • B64C11/343—Blade pitch-changing mechanisms mechanical automatic actuated by the centrifugal force or the aerodynamic drag acting on the blades

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Screw Conveyors (AREA)
  • Hinges (AREA)

Abstract

287,879. Davis, D. R. March 28, 1927, [Convention date]. Screw propellers.- Screw propeller blades are hinged to the hub along an axis at less than 90‹ with blade axes to provide for an automatic change in pitch. The hinge is preferably formed by a flexible metal plate and the blades may have dash-pots. The blades 8, Fig. 1, are hinged to the boss 11 along lines 9, a metal plate 10, Fig. 4, forming a lamination common to the boss and blades. Each may carry a dash cylinder 16, Fig. 7, and a perforated piston 17 therein is connected bv a rod 14 with a bracket 12 on the boss.
GB9306/28A 1927-03-28 1928-03-27 Expired GB287879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US287879TA 1927-03-28 1927-03-28

Publications (1)

Publication Number Publication Date
GB287879A true GB287879A (en) 1929-06-27

Family

ID=31945742

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9306/28A Expired GB287879A (en) 1927-03-28 1928-03-27

Country Status (1)

Country Link
GB (1) GB287879A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214989A (en) * 1988-02-11 1989-09-13 Albert Denis Laurence Mounting blades on rotors

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2214989A (en) * 1988-02-11 1989-09-13 Albert Denis Laurence Mounting blades on rotors

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