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 craft

Info

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
Application number
GB5011273A
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.)
CAHILL OBRIEN T
Original Assignee
CAHILL OBRIEN T
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 CAHILL OBRIEN T filed Critical CAHILL OBRIEN T
Priority to GB5011273A priority Critical patent/GB1418970A/en
Publication of GB1418970A publication Critical patent/GB1418970A/en
Expired legal-status Critical Current

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.
GB5011273A 1973-10-27 1973-10-27 Application of airflow and or pressure measuring and monitoring devices to sailing craft Expired GB1418970A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (5)

* Cited by examiner, † Cited by third party
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