GB376975A - Improvements in aircraft-sustaining rotors - Google Patents

Improvements in aircraft-sustaining rotors

Info

Publication number
GB376975A
GB376975A GB22269/31A GB2226931A GB376975A GB 376975 A GB376975 A GB 376975A GB 22269/31 A GB22269/31 A GB 22269/31A GB 2226931 A GB2226931 A GB 2226931A GB 376975 A GB376975 A GB 376975A
Authority
GB
United Kingdom
Prior art keywords
hub
blades
pivots
pivot pins
blade
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
GB22269/31A
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 GB376975A publication Critical patent/GB376975A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C27/00—Rotorcraft; Rotors peculiar thereto
    • B64C27/02—Gyroplanes
    • B64C27/021—Rotor or rotor head construction

Landscapes

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

Abstract

376,975. Aircraft with rotary wing systems. LA CIERVA, J. DE, 34, Alfonso XII, Madrid. Aug. 6, 1931, No. 22269. Convention date, April 24. [Classes 4 and 114.] In an aircraft sustaining rotor in which a plurality of wings or blades are independently mounted on a common rotative hub member by means of short links connected to the hub by horizontal pivot pins and to the blades by vertical pivot pins, stop means, fixed to or integral with the hub, are provided for limiting swinging movements of the blade about the horizontal pivots in either or both directions by reaction against the links or the vertical pivot pins, the blades being thus free to swing about their vertical pivots without restraint. In one form, as shown in the Figure, blades 12 are pivoted at 11 to a link 9 pivoted at 8 to a hub member 6 freely rotatable on bearings 7 carried by an axis member 5. A peripheral extension of the lower edge of hub 6 carries rubber blocks 14 against which seat the pivot pins 11 when the blades are in their lowermost position ; additional projections 15 which may also carry cushioning blocks are arranged to contact with the links 9 when the limit of upward blade travel is reached. In a modification the horizontal blade pivots are spaced at some distance radially from the axis member and the blade links are extended inwardly beyond these pivots and in either extreme position engage projecting abutments formed in the central part of the hub.
GB22269/31A 1931-04-24 1931-08-06 Improvements in aircraft-sustaining rotors Expired GB376975A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US376975XA 1931-04-24 1931-04-24

Publications (1)

Publication Number Publication Date
GB376975A true GB376975A (en) 1932-07-21

Family

ID=21895788

Family Applications (1)

Application Number Title Priority Date Filing Date
GB22269/31A Expired GB376975A (en) 1931-04-24 1931-08-06 Improvements in aircraft-sustaining rotors

Country Status (1)

Country Link
GB (1) GB376975A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041762A1 (en) * 1969-05-28 1971-02-05 Sud Aviation

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2041762A1 (en) * 1969-05-28 1971-02-05 Sud Aviation

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