FR553834A - Multiple-helix - Google Patents

Multiple-helix

Info

Publication number
FR553834A
FR553834A FR553834DA FR553834A FR 553834 A FR553834 A FR 553834A FR 553834D A FR553834D A FR 553834DA FR 553834 A FR553834 A FR 553834A
Authority
FR
France
Prior art keywords
helix
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
Joseph Plomb
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 FR553834A publication Critical patent/FR553834A/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
    • B64C11/46—Arrangements of, or constructional features peculiar to, multiple propellers
    • B64C11/48—Units of two or more coaxial propellers

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
FR553834D 1922-06-15 1922-06-15 Multiple-helix Expired FR553834A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR553834T 1922-06-15

Publications (1)

Publication Number Publication Date
FR553834A true FR553834A (en) 1923-05-31

Family

ID=8938479

Family Applications (1)

Application Number Title Priority Date Filing Date
FR553834D Expired FR553834A (en) 1922-06-15 1922-06-15 Multiple-helix

Country Status (1)

Country Link
FR (1) FR553834A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118144A (en) * 1976-04-16 1978-10-03 Kelley Lawrence L Support means for a windmill

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4118144A (en) * 1976-04-16 1978-10-03 Kelley Lawrence L Support means for a windmill

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