US1050350A - Anemometer. - Google Patents

Anemometer. Download PDF

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Publication number
US1050350A
US1050350A US70427112A US1912704271A US1050350A US 1050350 A US1050350 A US 1050350A US 70427112 A US70427112 A US 70427112A US 1912704271 A US1912704271 A US 1912704271A US 1050350 A US1050350 A US 1050350A
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United States
Prior art keywords
cone
anemometer
protecting ring
ring
fan
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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 - Lifetime
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US70427112A
Inventor
Henry Davis
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Priority to US70427112A priority Critical patent/US1050350A/en
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    • 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
    • G01P5/02—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer
    • G01P5/06—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes
    • G01P5/07—Measuring speed of fluids, e.g. of air stream; Measuring speed of bodies relative to fluids, e.g. of ship, of aircraft by measuring forces exerted by the fluid on solid bodies, e.g. anemometer using rotation of vanes with electrical coupling to the indicating device

Definitions

  • Patented m1111913 Patented m1111913.
  • the objects of my invention are to obtain a Sensitive instrument of the least possible diameter and one that may without diil'iculty be held so that the operators body or arm Will not impede or detie'ct the current of air: and further, to obtain a dial which may be easily and therefore accurately read.
  • Fig. 1 is a sectional elevation on line a-a of Fig. 2.
  • Fig. 2 is an elevation of my improved anemometer from the dial side.
  • I cause the fan b to be larger in proportion to the size of the instrument than usual, said an starting approximately at the central shaft c and extending to the outer protecting ring (Z: I employ a defiecting cone e with its apex adjacent the fan and enlarged toward its base to substantially the inside diameter al of the outer protecting ring d of the instrument.
  • An-.-annular port g is formed in the said protecting ring or casing to admit of the free exit of the air passed through the vanes and deiiected by the cone in the direction of the arrows on Fig. l, as already set forth: the deflection pf the air from the person of the operator insuring accurate Working of the instrument.
  • the unit indicating dial f coming at the back of the base of the detlecting cone may be made the full diameter of the protecting ring d, and so enable small quantities or currents of air to be measured with accuracy.
  • the inside of the cone contains the train of Wheels for operating the indicating dials.

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Luminescent Compositions (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Description

H. DAVIS.
ANEMOMBTER.
APPLIQATION FILED JUNE 18, 1912.
Patented m1111913.
Flai
w/T/vsssfs;
HENRY DAVIS, or DEBY, ENGLAND. i
ANEMOMETER.
Speeication of Letters Patent.
Patented Jan. 14, 1913.
Application led June 18, 1912. Serial No. 704,271,
T o'aZZ whom t may concern.'
Be it lmown that I, HENRY DAVIS, a subject of the King of Great Britain and Ireland, and resident of All ASaints Works, Amen Alley, in the county borou h of Derb England, (Whose post-oiiice ad ress is Al Saints Works, Amen Alley, Derby, lEngland,) have invented certain neT and useful Improvements in Anemometers, (for which I have applied for a patent in Great Britain, said application being numbered 17,075 and dated July 26, 1911,) of which the following is a specification.
The objects of my invention are to obtain a Sensitive instrument of the least possible diameter and one that may without diil'iculty be held so that the operators body or arm Will not impede or detie'ct the current of air: and further, to obtain a dial which may be easily and therefore accurately read.
Referring to the drawings which form a part of this specitication:-Figure 1 is a sectional elevation on line a-a of Fig. 2. Fig. 2 is an elevation of my improved anemometer from the dial side.
In carrying out my invention I cause the fan b to be larger in proportion to the size of the instrument than usual, said an starting approximately at the central shaft c and extending to the outer protecting ring (Z: I employ a defiecting cone e with its apex adjacent the fan and enlarged toward its base to substantially the inside diameter al of the outer protecting ring d of the instrument. An-.-annular port g is formed in the said protecting ring or casing to admit of the free exit of the air passed through the vanes and deiiected by the cone in the direction of the arrows on Fig. l, as already set forth: the deflection pf the air from the person of the operator insuring accurate Working of the instrument.
The unit indicating dial f coming at the back of the base of the detlecting cone may be made the full diameter of the protecting ring d, and so enable small quantities or currents of air to be measured with accuracy. The inside of the cone contains the train of Wheels for operating the indicating dials.
Having now described my invention, what I claim as new and desire to secure by Letters Patent is In an anemometer, in combination, a fan of large proportions, an outer casingv or protecting ring wherein said fan is mounted, said casing carrying a deflecting cone, there being an annular port between said ring and said cone, the internal part of said cone containing a train of Wheels and the base of said cone being fitted with a dial the unit ring of which approximates the size of the protecting ring. i
In testimony whereof I have signed my name to this specification in the presence of tWo subscribing Witnesses.
HENRY DAVIS.
Witnesses:
W. SWINDELL, W. J. Lowa.
US70427112A 1912-06-18 1912-06-18 Anemometer. Expired - Lifetime US1050350A (en)

Priority Applications (1)

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US70427112A US1050350A (en) 1912-06-18 1912-06-18 Anemometer.

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US70427112A US1050350A (en) 1912-06-18 1912-06-18 Anemometer.

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US1050350A true US1050350A (en) 1913-01-14

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2779194A (en) * 1952-04-30 1957-01-29 Slettenmark Karl Ivar Gustav Wind-gauge working on the pressure principle
US3088321A (en) * 1960-05-12 1963-05-07 Lathrop John Douglas Head speed indicator for golf clubs
US3823611A (en) * 1973-02-28 1974-07-16 Davis Inst Mfg Co Inc Vane anemometers
US4078426A (en) * 1975-10-07 1978-03-14 Transdynamics, Inc. Anemometer
US4769131A (en) * 1986-05-09 1988-09-06 Pure Water Technologies Ultraviolet radiation purification system
US4781523A (en) * 1987-06-01 1988-11-01 Aylor Elmo E Fluid energy turbine
US20090015018A1 (en) * 2007-07-09 2009-01-15 Nail Jasper M Flow Stream Momentum Conversion Device Power Rotor

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2779194A (en) * 1952-04-30 1957-01-29 Slettenmark Karl Ivar Gustav Wind-gauge working on the pressure principle
US3088321A (en) * 1960-05-12 1963-05-07 Lathrop John Douglas Head speed indicator for golf clubs
US3823611A (en) * 1973-02-28 1974-07-16 Davis Inst Mfg Co Inc Vane anemometers
US4078426A (en) * 1975-10-07 1978-03-14 Transdynamics, Inc. Anemometer
US4769131A (en) * 1986-05-09 1988-09-06 Pure Water Technologies Ultraviolet radiation purification system
US4781523A (en) * 1987-06-01 1988-11-01 Aylor Elmo E Fluid energy turbine
US20090015018A1 (en) * 2007-07-09 2009-01-15 Nail Jasper M Flow Stream Momentum Conversion Device Power Rotor

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