FR543420A - Improvements to reversible propellers - Google Patents

Improvements to reversible propellers

Info

Publication number
FR543420A
FR543420A FR543420DA FR543420A FR 543420 A FR543420 A FR 543420A FR 543420D A FR543420D A FR 543420DA FR 543420 A FR543420 A FR 543420A
Authority
FR
France
Prior art keywords
reversible propellers
propellers
reversible
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
Edgar Duerr
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 FR543420A publication Critical patent/FR543420A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H3/00—Propeller-blade pitch changing
    • B63H3/02—Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary

Landscapes

  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
FR543420D 1920-12-31 1921-11-10 Improvements to reversible propellers Expired FR543420A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB543420X 1920-12-31

Publications (1)

Publication Number Publication Date
FR543420A true FR543420A (en) 1922-09-02

Family

ID=10470690

Family Applications (1)

Application Number Title Priority Date Filing Date
FR543420D Expired FR543420A (en) 1920-12-31 1921-11-10 Improvements to reversible propellers

Country Status (1)

Country Link
FR (1) FR543420A (en)

Similar Documents

Publication Publication Date Title
FR540819A (en) Improvements to radio-receivers
FR549847A (en) Improvements to toy airships
FR24721E (en) Improvements to radio-receivers
FR526930A (en) Improvements to turbo-machines
FR523062A (en) Improvements to v-mandrels.
FR530455A (en) Improvements to antennas
FR543420A (en) Improvements to reversible propellers
FR534500A (en) Improvements to constructions
FR524066A (en) Improvements to incubators
FR527527A (en) Improvements to radiators
FR522019A (en) Improvements to radiators
FR528218A (en) Improvements to propulsion propellers
FR508198A (en) Improvements to mechanical razors
FR531265A (en) Improvements to metal propellers
FR527344A (en) Improvements to vices-filers
FR523155A (en) Improvements to areoplanes
FR517367A (en) Improvements to cinematographs
FR533930A (en) Improvements to electromagnets
FR539329A (en) Improvements to electromagnets
FR23024E (en) Improvements to airplanes
FR516173A (en) Improvements to airplanes
FR23704E (en) Improvements to airplanes
FR508229A (en) Improvements to airplanes
FR512014A (en) Improvements to airplanes
FR516174A (en) Improvements to airplanes