US164409A - Improvement in wind-wheels - Google Patents

Improvement in wind-wheels Download PDF

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Publication number
US164409A
US164409A US164409DA US164409A US 164409 A US164409 A US 164409A US 164409D A US164409D A US 164409DA US 164409 A US164409 A US 164409A
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Prior art keywords
wind
wheels
improvement
wheel
blade
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Expired - Lifetime
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D1/00—Wind motors with rotation axis substantially parallel to the air flow entering the rotor 
    • F03D1/06—Rotors
    • F03D1/0608—Rotors characterised by their aerodynamic shape
    • F03D1/0633—Rotors characterised by their aerodynamic shape of the blades
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/20—Rotors
    • F05B2240/30—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor
    • F05B2240/32—Characteristics of rotor blades, i.e. of any element transforming dynamic fluid energy to or from rotational energy and being attached to a rotor with roughened surface
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

Definitions

  • Figure 1 of the drawings is a representation of a plan view of my wheel
  • Fig. 2 is a sectional view of the same
  • Fig. 3 is a sectional detail view.
  • This invention has relation to blades for windmill-wheels; and the nature of my invention consists in a blade which is concave transversely, and which has rugated edges, whereby the wind will operate upon it to a much better pered, their broadest ends being at the circumference of the wheel, and their narrowest ends being at the eye of the wheel, as shown in In cross-section, taken at any point Fig. 1.
  • each blade is concave, forming an obtuse angle, a, which extends from end to end of eaeh'blade, through the middle of the width thereof.
  • the longitudinal edges of each blade are crimped or rugated, as indicated, in Figs. 2 and 3, by letters b b, which rugze afford great stiffness to the blade, and allow me to make it of very thin metal. I thus make a very light wheel, and at the same time secure the required stiffness of blades.
  • the rings B are notched and beveled, as shown in Fig. 2, and the blades are secured to these rings, so that they overlap one another one-half of the width of each blade, being at an angle with respect to the plane of the rings.
  • a wind-wheel blade, A which is conctwe transversely, and which is stiffened by rugating or crimping its edges, as and for the purpose set forth.

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  • 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)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Nozzles For Electric Vacuum Cleaners (AREA)
  • Professional, Industrial, Or Sporting Protective Garments (AREA)

Description

L. DFABRAMS.
Wind-Wheel.
N0 164,409. 4 Patentedlune15,l875.
WITNESSES WINVEN OR 7 J i w I vk; I
ATTORNEYS THE GRAPHIC CO.PHDTO-LITH.39 &4l PARK PLACLNX.
UNITED LORENZO DOW ABRAMS, OF TUSOOLA, ILLINOIS.
IMPROVEMENT IN WIND-WHEELS.
Specification forming part of Letters Patent No. 164,409, dated June 15, 1875; application filed May 15, 1875.
To all whom it may concern:
Be it known that I, LORENZO D. ABRAMS, of Tuscola, in the county of Douglas and State of Illinois, have invented a new and valuable Improvement in W'ind-WVheels; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings making a part of this specification, and to the letters and figures of reference marked thereon.
Figure 1 of the drawings is a representation of a plan view of my wheel, and Fig. 2 is a sectional view of the same. Fig. 3 is a sectional detail view.
This invention has relation to blades for windmill-wheels; and the nature of my invention consists in a blade which is concave transversely, and which has rugated edges, whereby the wind will operate upon it to a much better pered, their broadest ends being at the circumference of the wheel, and their narrowest ends being at the eye of the wheel, as shown in In cross-section, taken at any point Fig. 1.
between the ends of the blades, they are concave, forming an obtuse angle, a, which extends from end to end of eaeh'blade, through the middle of the width thereof. The longitudinal edges of each blade are crimped or rugated, as indicated, in Figs. 2 and 3, by letters b b, which rugze afford great stiffness to the blade, and allow me to make it of very thin metal. I thus make a very light wheel, and at the same time secure the required stiffness of blades.
In making up a wheel with my improved blades, the rings B are notched and beveled, as shown in Fig. 2, and the blades are secured to these rings, so that they overlap one another one-half of the width of each blade, being at an angle with respect to the plane of the rings.
What I claim as new, and desire to secure by Letters Patent, is-
' A wind-wheel blade, A, which is conctwe transversely, and which is stiffened by rugating or crimping its edges, as and for the purpose set forth.
In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.
LORENZO DOW ABRAMS.
Witnesses:
GEO. E. WYETH, A. W. WALLACE.
US164409D Improvement in wind-wheels Expired - Lifetime US164409A (en)

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