GB255126A - Improvements in counter propellers for marine and aerial vessels - Google Patents

Improvements in counter propellers for marine and aerial vessels

Info

Publication number
GB255126A
GB255126A GB259825A GB259825A GB255126A GB 255126 A GB255126 A GB 255126A GB 259825 A GB259825 A GB 259825A GB 259825 A GB259825 A GB 259825A GB 255126 A GB255126 A GB 255126A
Authority
GB
United Kingdom
Prior art keywords
propeller
blades
counter
secured
main
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
GB259825A
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
Priority to GB259825A priority Critical patent/GB255126A/en
Publication of GB255126A publication Critical patent/GB255126A/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
    • B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
    • B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
    • B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
    • B63H5/10—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller of coaxial type, e.g. of counter-rotative type

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)

Abstract

255,126. Holbeach, M. G. Jan. 29, 1925. Screw propellers; rudders.-Counter propellers &c. are constructed with blades having the angles of the leading edge set at the angle of outflow from the main propeller to direct the flow axially, such angles being determined by a flow discharge indicator of the kind described in Specifications 255,125 and 255,507. A two-bladed ccunter-propeller 1, Fig. 1, is secured at 3 to the stern frame 2 of a ship behind the main propeller, the leading edges 6 being raked back from root to tip. Additional transverse blades may be secured to the boss 5. The counter propeller may be mounted on a stationary shaft 9, Fig. 7, housed in a hollow propeller shaft 10. For aircraft, the blades are secured to a fixed boss forming a fairing to the main boss. The rudder may be used as a twobladed counter propeller by twisting the upper and lower portions oppositely. The blades may be made solid or hollow.
GB259825A 1925-01-29 1925-01-29 Improvements in counter propellers for marine and aerial vessels Expired GB255126A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB259825A GB255126A (en) 1925-01-29 1925-01-29 Improvements in counter propellers for marine and aerial vessels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB259825A GB255126A (en) 1925-01-29 1925-01-29 Improvements in counter propellers for marine and aerial vessels

Publications (1)

Publication Number Publication Date
GB255126A true GB255126A (en) 1926-07-22

Family

ID=9742380

Family Applications (1)

Application Number Title Priority Date Filing Date
GB259825A Expired GB255126A (en) 1925-01-29 1925-01-29 Improvements in counter propellers for marine and aerial vessels

Country Status (1)

Country Link
GB (1) GB255126A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140484B (en) * 1958-04-30 1962-11-29 Maierform Holding Sa Ship rudder with staggered upper and lower rudder halves
US6155894A (en) * 1997-10-01 2000-12-05 Allison; Darris E. Off-center marine outboard skeg

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1140484B (en) * 1958-04-30 1962-11-29 Maierform Holding Sa Ship rudder with staggered upper and lower rudder halves
US6155894A (en) * 1997-10-01 2000-12-05 Allison; Darris E. Off-center marine outboard skeg

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