FR666715A - Device for improving the propulsion efficiency of propellers - Google Patents

Device for improving the propulsion efficiency of propellers

Info

Publication number
FR666715A
FR666715A FR666715DA FR666715A FR 666715 A FR666715 A FR 666715A FR 666715D A FR666715D A FR 666715DA FR 666715 A FR666715 A FR 666715A
Authority
FR
France
Prior art keywords
propellers
improving
propulsion efficiency
propulsion
efficiency
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
Leo Costanievich
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
Priority claimed from GB3573328A external-priority patent/GB327719A/en
Application filed filed Critical
Application granted granted Critical
Publication of FR666715A publication Critical patent/FR666715A/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
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H25/38—Rudders
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63H—MARINE PROPULSION OR STEERING
    • B63H25/00—Steering; Slowing-down otherwise than by use of propulsive elements; Dynamic anchoring, i.e. positioning vessels by means of main or auxiliary propulsive elements
    • B63H25/06—Steering by rudders
    • B63H2025/066—Arrangements of two or more rudders; Steering gear therefor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Toys (AREA)
FR666715D 1928-08-02 1928-12-05 Device for improving the propulsion efficiency of propellers Expired FR666715A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DEC41786D DE503962C (en) 1928-08-02 1928-08-02 Leitkoerper to improve the propulsion efficiency of propellers
GB3573328A GB327719A (en) 1928-12-04 1928-12-04 Means for promoting screw propeller efficiency

Publications (1)

Publication Number Publication Date
FR666715A true FR666715A (en) 1929-10-04

Family

ID=25970353

Family Applications (1)

Application Number Title Priority Date Filing Date
FR666715D Expired FR666715A (en) 1928-08-02 1928-12-05 Device for improving the propulsion efficiency of propellers

Country Status (2)

Country Link
DE (1) DE503962C (en)
FR (1) FR666715A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572134A (en) * 1946-06-10 1951-10-23 Gliwa Michael Airplane rudder

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE963844C (en) * 1948-02-21 1957-05-16 Dr Leo Costa Device to improve the propulsion efficiency of propellers of all kinds
DE1028457B (en) * 1954-05-05 1958-04-17 Leo Costa Dr Screw drive for ships with a pear-shaped displacement body
DE1051153B (en) * 1956-05-25 1959-02-19 Dr Leo Costa Pear-shaped displacement body arranged axially behind a ship's propeller
DE1196093B (en) * 1962-11-19 1965-07-01 Herbert Moennich Double-walled propeller guide ring

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2572134A (en) * 1946-06-10 1951-10-23 Gliwa Michael Airplane rudder

Also Published As

Publication number Publication date
DE503962C (en) 1930-08-01

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