US197457A - Improvement in windmills - Google Patents

Improvement in windmills Download PDF

Info

Publication number
US197457A
US197457A US197457DA US197457A US 197457 A US197457 A US 197457A US 197457D A US197457D A US 197457DA US 197457 A US197457 A US 197457A
Authority
US
United States
Prior art keywords
sail
windmills
improvement
frames
shaft
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 - Lifetime
Application number
Publication date
Application granted granted Critical
Publication of US197457A publication Critical patent/US197457A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • F05B2260/00—Function
    • F05B2260/70—Adjusting of angle of incidence or attack of rotating blades
    • F05B2260/72—Adjusting of angle of incidence or attack of rotating blades by turning around an axis parallel to the rotor centre line
    • 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
    • Y02E10/74—Wind turbines with rotation axis perpendicular to the wind direction

Definitions

  • Figure 1 is a perspective view
  • Fig. 2 is a cross-section through a sail-frame at a; 00. p
  • A represents a vertical shaft, stepped and journaled in suitable bearings.
  • B B are sailframes, consisting each of two parallel bars,
  • each frame being secured ,at its upper edge to the upper bar of each frame, each frame being provided with a series of light slats or bars, a, to prevent the loose sail from being blown through it.
  • the upper bar is also provided with several guard-rods, b, projecting to the rear, to prevent the sails from blowing over and winding around the arm.
  • Such a mill will cost but a fraction of the expense of a vertical mill exposing an equal sail area to the wind, besides being much simpler in construction, having less parts, and is easier to gear from.
  • each frame being provided with a flap-sail, substantially as shown and set forth.

Description

MPETERs, PHOTO-LTNOGRAPHEH WASHINGTON u c UNITED STATES PATENT QFFICE.
JOHN CLARK, OF PONTIAC, MICHIGAN, ASSIGNOR or ONE-HALF HIS RIGHT TO' WILLIAM H. osMUN, an, or SAME PLACE.
IMPROVEMENT lN WINDMILLS.
Specification forming part of Letters Patent No. 197,457, dated November 27, 1877; application filed May 23, 1877. I
tion as thearm to which it is hung comes up into the wind, the effect of this arrangement of the sail-frames being such as to have the sails receive the force of the wind through one-half of a revolution, instead of coming into the lee of a succeeding sail in the same plane after completing one-fourth of a revolution.
In the accompanying drawings, formingpart of this specification, Figure 1 is a perspective view, and Fig. 2 is a cross-section through a sail-frame at a; 00. p
A represents a vertical shaft, stepped and journaled in suitable bearings. B B are sailframes, consisting each of two parallel bars,
secured at their inner ends to a shaft on op-" posite sides thereof, and inclined at an angle of about twenty-two degrees, which inclination may be varied, however, to suit the elevation of the shaft above the cap on which the upper bearing is secufed, in order that the lower bars of the sail-frames may clear the same. The outer ends of the bars of each frame are secured together by a girt, as shown.
Above the lower sail-frames a second set are secured to the shaft at right angles with the lower ones; and if much power be wanted, the shaft may be extended, and other frames can be added in like manner.
0 G O O are the sails, each being secured ,at its upper edge to the upper bar of each frame, each frame being provided with a series of light slats or bars, a, to prevent the loose sail from being blown through it. The upper bar is also provided with several guard-rods, b, projecting to the rear, to prevent the sails from blowing over and winding around the arm.
It will be seen that one-half the sails are drawing during an entire half of the revolution, and during the other half they are free to come up edgewise into the wind.
' Such a mill will cost but a fraction of the expense of a vertical mill exposing an equal sail area to the wind, besides being much simpler in construction, having less parts, and is easier to gear from.
I claim as my invention In a windmill, substantially as described,
the combination, with the vertical shaft, of the inclined sail-frames, arranged in pairs in different planes, each frame being provided with a flap-sail, substantially as shown and set forth.
JOHN CLARK.
Witnesses H. F. EBERTS, H. S. SPRAGUE.
US197457D Improvement in windmills Expired - Lifetime US197457A (en)

Publications (1)

Publication Number Publication Date
US197457A true US197457A (en) 1877-11-27

Family

ID=2266863

Family Applications (1)

Application Number Title Priority Date Filing Date
US197457D Expired - Lifetime US197457A (en) Improvement in windmills

Country Status (1)

Country Link
US (1) US197457A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566853A (en) * 1982-06-25 1986-01-28 Chalerm Likitanupak Windmill
US20040195575A1 (en) * 2002-03-08 2004-10-07 Takuya Komoda Quantum device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4566853A (en) * 1982-06-25 1986-01-28 Chalerm Likitanupak Windmill
US20040195575A1 (en) * 2002-03-08 2004-10-07 Takuya Komoda Quantum device

Similar Documents

Publication Publication Date Title
US197457A (en) Improvement in windmills
US201400A (en) Improvement in wind-wheels
US346797A (en) Wind-wheel
US381679A (en) Joel deveeeux
US222256A (en) Improvement in windmills
US232558A (en) Hilliaed b
US574290A (en) Windmill
US412099A (en) Wind-wheel
US63498A (en) Improvement in windmills
US386684A (en) Windmill
US180603A (en) Improvement in windmills
US589530A (en) Automatic windmill
US763795A (en) Wind-motor.
US547954A (en) Windmill
US535956A (en) Windmill
US686200A (en) Wind-motor.
US773976A (en) Wind-wheel.
US192668A (en) Improvement in windmills
US168009A (en) Improvement in turbine wind-wheels
US1103706A (en) Water-power wheel.
US603905A (en) Windmill
US331288A (en) Amos chapman ellswoeth
US223725A (en) Windmill
US172015A (en) Improvement in wind-powers
US224467A (en) Water or wind mill