US381679A - Joel deveeeux - Google Patents

Description

(No Model.)

J. DEVEREUX.

WINDMILL.

Patented Apr. '24, 188.8.

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UNrrnD Srnrns JOEL DEVEREUX, OF OULBERTSOX, NEBRASKA, ASSIGNOR TO GEORGE S. LORD, `OF SAME PLACE.

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SPECIFICATION forming part of Letters Patent No. 381,679, dated April 24,1888.

Application filed August Q0, i887. Serial No. 247,462. (No model.)

To @ZZ whom it may concern:

Be it known that I, J OEL DEvnnEUX, acitizen ofthe United States, residing at Gulbert son, in the county of Hitchcock and State 0f Nebraska, have invented a new and useful Improvement in Vindmills, of which the following is a specification.

My invention relates to an improvement in windmills; and it consists in the peculiar construction and combination ofdevices,that will be more fully set forth hereinafter, and particularly pointed out in the claims.

In the accompanying drawings, forming part of this specification, Figure I is a perspective view of a windmill embodying my improvements. Fig. 2 is a vertical sectional view on the line n; :r of Fig. 3. Fig. 3 is a horizontal section on the line y y of Fig. 2.

The tower or support of the machine may be of any suitable4 construction, but should be provided with a lower horizontal bane., which is centrally and vertically perforated to present a bearing, a, for the lower end of a vertical shaft, B, which extends up through and is guided in a second bearing, c, in the platform C, mounted on the tower. This said platform is provided adjacent to its margin with a serise of antifriction rollers d.

D refers to the cylindrical wheel-case, which is open both at its upper and lower sides, at which point said openings are spanned by cross-bar e, centrally perforated for the reception and bea-ring of the vertical shaft. The said case D is provided with an opening at one side, from which extends a rigid portion of the case so as to form a guard thereat and present one side of a mouth portion for said opening. A door, E, is pivotally secured at the other side of said opening, and has attached thereto one end of a short cord or cable,f, which is guided through an opening in a horizontal supporting-ledge, g,of said wheelcase and has suspended from its end aweight,

h. Arranged eccentrically in the case Dis the i wheel F, which consists of an upper andlower ring-section, G G', and each having a central opening spanned by crossarms j. 'lliesearms are also perforated centrally for the passage of a vertical shaft.

The rings G G are connected by the vertical blades le, which, as shown in Fig. 3, are

preferably of au ogee form, which enables them to present the depressed or concave por' tions at the outer part of the wheel to receive the impact of the wind in the most effective manner, while the convex inner portions as- Sist in deiiecting the wind in a vertical direction through the wheels and case after it has spent its -force.

Anysuitable arrangement of cords or cables may be connected to the swinging door to facilitate its operation from the ground and enable the attendant to vary the size of the opening in the side of the case, and thus regulate the force of the air-current.

Two horizontal bars, H H, are connected to the upper side of the case D at a point immediately opposite where the mouth is located, and the said bars converge toward each other at their outer portions, where they carry a vane or tail, I.

Suitable gear-wheels are arranged at the base ofthe vertical shaft A and serve to transmit power for any desired purpose.

It will be noted that the under side of the case restsupon the friction-rollers and is thus enabled to turn freely relative to the platform.'

In operation the air or wind is admitted to the interior of the case through the mouth thereof and strikes against the curved portions of such blades as are adjacent to said mouth, thereby causing the wheel to rotate at a high degree of speed. It will be noticed that, the wheel being arranged eecentrically in the case, the space between the edges of 8 the blades and theinner face of the case gradually diminishes from the mouth portion,and thereby the side of the case having` the mouth opposes a somewhat greater area of surface to the wind than the opposite side of the case. The effect of this arrangement is to cause the wind to turn the case slightly,so that the door will be arranged at a slight angle to the wind instead of parallel therewith. Should the wind veer or change, the vane or tail will readily change the position of the case, so as to bring the mouth of the same in line with the direction of the wind without interfering or effecting the continuous rotation of the wheel.

It will be understood that the arrangement of the door with its cord is such that upon any increase in the force of the wind above ICO `oluble case D, having the mouth on one side,

and the vane with the wind-Wheel F, arranged eccentrically in the case, the axis of the said Wheel being in line with the axis on which the case turns, substantially as described.

2. The combination of the horizontal revoluble oase D, having the vane, the mouth on one side, the hinged door arranged on o ne side of the said mouth, the weight and connections to keep the same open against the force of the Wind, and the wind-wheel F, arranged eccentrioally inthe said ease, the axis of the said wheel being in line with the axis on which the case turns, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in pres- 2 ence of two witnesses.

JOEL DEVEREUX.

Witnesses: A

F. S. Bos'rooK, R. KNowLEs.

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