US226265A - Henry h - Google Patents

Description

H. H. BEVIL. Windmill.

No. 226,265. Patented April 6,1880.

ATTORNEY MPETERS, PHOTOJJTHOGRAPHER, WASHINGTON D c.

kbllll N zii?fla $122 I WITNESSES HENRY H. BEVIL, OF INDIANAPOLIS, INDIANA.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 226,265, dated April 6, 1880,

Application filed February 7, 1880. I

To all whom it may concern:

Be it known that I, HENRY H. BEVIL, of Indianapolis. in the county of Marion and State of Indiana, have invented a new and valuable Improvement in Windmills; 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 l of the drawings is a representation of a vertical central section of my wind-engine. Fig. 3 is a top view thereof; and Figs. 2, 4, and 5 are details. V

This invention has relation to improvements in windengines; and the nature of the invention consists in the arrangement and novel construction of the various devices used, as will be hereinafter more fully set forth.

In the annexed drawings, the letter A designates the tower of my improved wind-engine, consisting of the converging posts a and the cap a, to which the former are secured. This cap has a squared lower part, b, to the plane faces of which the beveled upper ends of the posts are secured, and at the top of the said squared part the bearing-shoulders 0, against which the said posts abut. This cap is hollow, and is provided at a suitable distance above the shoulders c with an annular ledge, c, having in its upper horizontal face an annular groove, (1, in which are arranged a number of balls, (1, the upper halves of which are received in a corresponding groove, 6, in the contiguous face of the lower annular branch, B, of the vane-stein A. Between the lower branch, 13, and the upper branch, 0, of this vane V is a metallic hub, D, that is passed over the spindle y, along with the said branches of the vane, the whole being confined in position by means of a nut, f, screwed upon the end of the spindle, extending through the hub and branches, as shown in Fig. l of the draw lugs.

It will be seen that both the vane and the hub, to which are attached the bearings of the main shaft, have independent rotation around the stem of the cap above the ledge aforesaid.

The lower branch, B, of the vane is provided with a depending annular flange, f,

that excludes rain, sleet, snow, or other foreign matter from the guidegrooves of the ledge and branch B, and thus prevents the casual clogging of the balls aforesaid, the said flange extending below the ledge, as shown in Fig.

l. The forks or branches of the vane V are secured to a wooden beam, A, by suitable bolts or other means, the blade being secured to the said beam in any workmanlike way.

Projecting outwardly from the hub is a horizontal platform or ledge, D, having a longitudinal slot, 8, parallel to the plane of the wheel and at right angles to its shaft D. This shaft has its bearings in and extends across the platform or ledge, and is provided at the said slot with a crank, g. Extending up from this platform is an upright, g, affording in its upper end a fulcrum to a verticallyvibrating lever, E, the weight end of which is connected by means of a pin to a rod, E, extending down through the cap and actuating the pump or other machine. The power end of this lever is connected by means of a'pitman, F, with the crank of the main shaft. This pitman is composed of three sections,'i z" 2', the former vibrating in the same plane with the lever and at right angles to the slot of the platform D, the second at right angles to the plane of vibration of the said lever and in the length of the said slot, and the third being a collar around the crank. A universal joint is thus formed in said pitman, that prevents all undue binding or friction and reduces it to a minimum. Extending out horizontally from the platform, at an obtuse angle to the length of its slot, is an arm, G, connected, by means of a rod, G, to a verticallyvibrating rod, H carrying on its lower end the weighted governor-vane I, and fulcrumed on the stem of the main vane, with its bearing-armj extending through it and provided with a lever-handle, j. Secured to this ban; dle is a cord, H, passing over a pulley, j, and extending down the tubular cap to the ground, by means of which the governor may be operated by hand. a

In order to increase or lessen the throw, and thus increase or lessen the power, of lever E, it is provided with several spaced perforations, as, in its power end for the attachment of the pitman.

The wheel D is of the following construction: It is composed of a hub or spider, H, keyed upon the main shaft, and composed of two sections, 0" r, clamped together in any suitable way and holding the inner ends of the wind blades H between them. These blades are of the usual tapering form, being widest at their outer ends, and are made of sheet metal of suitable thickness. They are each bent upon one of their edges backward to form a stiffening-flange, z, and are braced together by the concentriciron rings. The blades are arranged obliquely to the plane of the wheel, and the rings J J are bent in zigzags, one branch of each zigzag lying fiat upon the said blades and the other extending across the interval between. Thus the blades are secured each to the other. Upon the outer end of the shaft, projecting beyond the wheel, is a hub, K, from which radiate the braces L, secured at their outer ends rigidly to the rings J J, thus forming a truss-brace and greatly stifiening the wheel.

M indicates a brake, consisting, essentially, of a tube, N, rigidly secured to platform D at right angles thereto, a plungerrod, 0, arranged in said tube and extending through both ends of the same, and a spring, 19, holding the said rod back to its fullest extent. This rod is endwise movable, and is provided on its working end with a bearing end, q, of wood, iron, or rubber.

When the governor is forced back by the wind and the wheel thrown out of the same thereby the main vane remains stationary, the lower branch. B, of the vane-stem A engages the inner end of the plunger 0, while the bearin g end q thereof comes in contact with the hub of the wheel, and the rotation of said wheel is arrested. As the gale decreases the governor falls, thus bringing the wheel more or less into the wind, according to the decrease or lull of the same and the extent of the fall of the governor. The brake is then taken off automatically.

As shown in Fig. 1, the up side of the branch B of the vane V has an annular groove, 2?, in which are placed a number of balls, and the under side of the hub D has a corresponding groove, 25, into which the upper halves of said balls are received, thus forming a rolling bearing for the hub that carries the wheel upon the branch B of the main vane.

By this device the hub, on which the weight of the main shaft and wind-wheel falls, has free independent movement of the vane, the latter being designed to change its position only when the wind shifts.

It will thus be seen that the hub and main vane have entirely independent motion around the same spindle.

What I claim as new, and desire to secure by Letters Patent, is

1. In a wind-engine, in combination with a wind-wheel and a main vane rotating independently around a spindle common to both, a weighted governor-blade vibrating on the main vane and connected to the wind-wheel, substantially as specified.

2. The combination, with the cap a, having the reduced spindle y, the vane stem A, having the branches B G, the tubular hub D, affording bearings to the main shaft, received between said branches and passed therewith over the said spindle, of the vibrating weighted governor-vane I, journaled on the stem of the main vane, and a connecting-rod, G, uniting the said governor and hub, substantially as specified.

3. The brake for wind-engines, consisting of the open-ended tube N, the plunger-rod 0, moving endwise therein and projecting through it at each end, and a spring,p, holding said rod back, substantially as specified.

4. The combination, with a turn-table, D, having a slotted platform, D, the main shaft D journaled in said platform across the slot, a wind-wheel, and a walking-beam lever, E, of a pitnian, F, composed of the section '5, vibratin g in the plane of the lever, the section t", pivoted thereto and vibrating in the direction of the length of the slot, and a collar-section, i, pivoted to section 2', and encircling the wrist of the crank, substantially as specified.

5. The wind-wheel consisting of the sectional hub H,the radiating blades H, clamped between said sections and obliquely arranged relative to the plane of the wheel, and the ringbraces J J, zigzagged to conform to the obliquity of the blades and the interval between them, substantially as specified.

6. In a wind-engine, the combination, with a cap, a, having the spindle y and guide-vane V, and a turn-table rotating on said spindle, of a brake, M, consisting of a tube, N, the plungerrod 0, endwise movable therein and held against the wheel by the main vane, and a spring, 12, holding said rod back, substantially as specified.

7. The combination, with the cap a, having spindle y and ledge 0, with annular groove (1, and balls arranged in said groove, of the vane branch B, having groove 0 on its lower side, groove t upon its upper side, and flange f, and passed over said spindle, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses.

HENRY H. BEVIL.

Witnesses MILES BEVILL, JAMES M. CRAWFORD.

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