GB1418970A - Application of airflow and or pressure measuring and monitoring devices to sailing craft - Google Patents
Application of airflow and or pressure measuring and monitoring devices to sailing craftInfo
- Publication number
- GB1418970A GB1418970A GB5011273A GB5011273A GB1418970A GB 1418970 A GB1418970 A GB 1418970A GB 5011273 A GB5011273 A GB 5011273A GB 5011273 A GB5011273 A GB 5011273A GB 1418970 A GB1418970 A GB 1418970A
- Authority
- GB
- United Kingdom
- Prior art keywords
- pressure
- sail
- diaphragm
- sailing craft
- airflow
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L9/00—Measuring steady of quasi-steady pressure of fluid or fluent solid material by electric or magnetic pressure-sensitive elements; Transmitting or indicating the displacement of mechanical pressure-sensitive elements, used to measure the steady or quasi-steady pressure of a fluid or fluent solid material, by electric or magnetic means
- G01L9/0041—Transmitting or indicating the displacement of flexible diaphragms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H9/00—Marine propulsion provided directly by wind power
- B63H9/04—Marine propulsion provided directly by wind power using sails or like wind-catching surfaces
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P5/00—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft
- G01P5/14—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring differences of pressure in the fluid
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Aviation & Aerospace Engineering (AREA)
- Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
Abstract
1418970 Sailing craft: Pressure gauge T C OBRIEN 27 Oct 1973 50112/73 Headings G1L G1N and G1R A sailing craft is provided with one or more devices for measuring the pressure on or the airflow around the sails. In Fig. 1, the sail C is provided with a diaphragm D which applies a force proportional to the differential pressure on the sail to a pressure sensitive transistor A, the differential pressure being shown on a voltmeter E. In Fig. 3, the pressures on both sides of the sail C are transmitted by pipes I, J, to a gimbal mounted inclined manometer L. In a modification of Fig. 3 Fig. 2, (not shown) the tubes I, J lead to opposite sides of a diaphragm D mounted in a wall dividing a chamber into two halves, the diaphragm D acting on a pressure sensitive transistor A as in Fig. 1. In Fig. 4, the device of Fig. 2 or Fig. 3 is modified to respond to the dynamic pressure of the air-flow across the sail. In a further embodiment, Fig. 5 (not shown), air-flow measuring devices are mounted on the spars or stays of a sailing boat.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5011273A GB1418970A (en) | 1973-10-27 | 1973-10-27 | Application of airflow and or pressure measuring and monitoring devices to sailing craft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5011273A GB1418970A (en) | 1973-10-27 | 1973-10-27 | Application of airflow and or pressure measuring and monitoring devices to sailing craft |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1418970A true GB1418970A (en) | 1975-12-24 |
Family
ID=10454699
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5011273A Expired GB1418970A (en) | 1973-10-27 | 1973-10-27 | Application of airflow and or pressure measuring and monitoring devices to sailing craft |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1418970A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2497575A1 (en) * | 1981-01-08 | 1982-07-09 | Fgp Instrumentation | MANOSENSIBLE DEVICE FOR TAKING STATIC PRESSURE AND ANEMOMETRIC MATERIAL, IN PARTICULAR FOR AN AIRCRAFT |
GB2125352A (en) * | 1982-08-18 | 1984-03-07 | Walker Wingsail Syst | Pressure sensing on rigid sails |
FR2633717A1 (en) * | 1988-06-30 | 1990-01-05 | Univ Paris | Differential pressure sensor and sail equipped with such a sensor |
-
1973
- 1973-10-27 GB GB5011273A patent/GB1418970A/en not_active Expired
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2497575A1 (en) * | 1981-01-08 | 1982-07-09 | Fgp Instrumentation | MANOSENSIBLE DEVICE FOR TAKING STATIC PRESSURE AND ANEMOMETRIC MATERIAL, IN PARTICULAR FOR AN AIRCRAFT |
EP0056747A1 (en) * | 1981-01-08 | 1982-07-28 | Fgp Instrumentation | Anemometer pole for measuring the relative speed between a fluid and a support, especially for an aircraft |
US4448069A (en) * | 1981-01-08 | 1984-05-15 | Fgp Instrumentation | Airspeed sensing post for determining relative velocity of a fluid and a carrier |
GB2125352A (en) * | 1982-08-18 | 1984-03-07 | Walker Wingsail Syst | Pressure sensing on rigid sails |
FR2633717A1 (en) * | 1988-06-30 | 1990-01-05 | Univ Paris | Differential pressure sensor and sail equipped with such a sensor |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee | ||
PCPE | Delete 'patent ceased' from journal |
Free format text: 4765 |
|
PCNP | Patent ceased through non-payment of renewal fee |