IT1052002B - Sailing boat auxiliary drive propeller feathering mechanism - has bevel gears permitting partial blade rotation on engine start up - Google Patents
Sailing boat auxiliary drive propeller feathering mechanism - has bevel gears permitting partial blade rotation on engine start upInfo
- Publication number
- IT1052002B IT1052002B IT3081975A IT3081975A IT1052002B IT 1052002 B IT1052002 B IT 1052002B IT 3081975 A IT3081975 A IT 3081975A IT 3081975 A IT3081975 A IT 3081975A IT 1052002 B IT1052002 B IT 1052002B
- Authority
- IT
- Italy
- Prior art keywords
- blades
- sailing boat
- engine start
- bevel gears
- auxiliary drive
- Prior art date
Links
Landscapes
- Wind Motors (AREA)
- Toys (AREA)
Abstract
A propeller driven by an auxiliary engine of a sailing boat has its blades (4) mounted on spindles (16) so that when the engine is not running, they can turn to offer a minimum resistance to the flow of water. These blades are slightly curved to cause a minimum of turbulence. The two spindles carry bevil pinions (17) which mesh with a common pinion (12) mounted on the end of the drive shaft (2). This shaft carries a block along one end, parallel to its axis of rotation which can make half a turn inside a space (20) between its periphery and the hollow interior of the casing (14) on which the blades are supported. Thus, when the engine is started up, a relative rotation of half a turn takes place between the drive shaft (2) and the whole propeller blade casing, to allow the bevel drive (12, 17) to rotate and twist the blades the required amount.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT3081975A IT1052002B (en) | 1975-12-29 | 1975-12-29 | Sailing boat auxiliary drive propeller feathering mechanism - has bevel gears permitting partial blade rotation on engine start up |
US05/748,256 US4140434A (en) | 1975-12-29 | 1976-12-06 | Feathering propeller especially for sailing boats |
GB5109576A GB1566426A (en) | 1975-12-29 | 1976-12-08 | Feathering screw propeller assembly especially for sailing boats |
FR7639054A FR2337079A1 (en) | 1975-12-29 | 1976-12-24 | FLAG PROPELLER ESPECIALLY FOR SAILING BOATS |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
IT3081975A IT1052002B (en) | 1975-12-29 | 1975-12-29 | Sailing boat auxiliary drive propeller feathering mechanism - has bevel gears permitting partial blade rotation on engine start up |
Publications (1)
Publication Number | Publication Date |
---|---|
IT1052002B true IT1052002B (en) | 1981-06-20 |
Family
ID=11232269
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
IT3081975A IT1052002B (en) | 1975-12-29 | 1975-12-29 | Sailing boat auxiliary drive propeller feathering mechanism - has bevel gears permitting partial blade rotation on engine start up |
Country Status (1)
Country | Link |
---|---|
IT (1) | IT1052002B (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3901672A1 (en) * | 1989-01-20 | 1990-08-02 | Horst Huebner | Controllable-pitch marine propeller with adjustable stops |
WO2008075187A2 (en) | 2006-12-19 | 2008-06-26 | Max Prop S.R.L. | Variable-pitch propeller |
WO2012007970A1 (en) | 2010-07-15 | 2012-01-19 | Max Prop S.R.L. | Feathering propeller with blade dampening at forward and backward motion and blades pitch control during backward motion |
WO2014102559A1 (en) | 2012-12-27 | 2014-07-03 | Max Prop S.R.L. | Propeller and relative method for fine adjusting the fluid dynamic pitch of the propeller blades |
-
1975
- 1975-12-29 IT IT3081975A patent/IT1052002B/en active
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3901672A1 (en) * | 1989-01-20 | 1990-08-02 | Horst Huebner | Controllable-pitch marine propeller with adjustable stops |
DE3901672C2 (en) * | 1989-01-20 | 1991-01-31 | Horst 2820 Bremen De Huebner | |
WO2008075187A2 (en) | 2006-12-19 | 2008-06-26 | Max Prop S.R.L. | Variable-pitch propeller |
EP2275343A1 (en) | 2006-12-19 | 2011-01-19 | Max Prop S.r.l. | Variable-pitch propeller |
WO2012007970A1 (en) | 2010-07-15 | 2012-01-19 | Max Prop S.R.L. | Feathering propeller with blade dampening at forward and backward motion and blades pitch control during backward motion |
US9506358B2 (en) | 2010-07-15 | 2016-11-29 | Max Prop S.R.L. | Feathering propeller with blade dampening at forward and backward motion and blades pitch control during backward motion |
WO2014102559A1 (en) | 2012-12-27 | 2014-07-03 | Max Prop S.R.L. | Propeller and relative method for fine adjusting the fluid dynamic pitch of the propeller blades |
US10336421B2 (en) | 2012-12-27 | 2019-07-02 | Max Prop S.R.L. | Propeller and relative method for fine adjusting the fluid dynamic pitch of the propeller blades |
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