US662939A - Windmill. - Google Patents

Description

(No Nadel.)

Illlllllllllllllillli Patented nec.. 4, |900. JB. mmm.

WINDMILL.

(Application Bled Nov. 18, 1899.)

2 Sheets- Sheet I.

NrTED STATES PATENT FFICFE.

JAMES B. JARMIN, OF OSCEOLA, NEBRASKA, ASSIGNOR, BY MESNE ASSIGN- MENTS, TO THE IMPLEMENT MANUFACTURING COMPANY, OF DAVEN- PORT, town.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 662,939, dated December 4, 1%.)00.

Application led November 18, 1899. Serial No. 737,508. (No model.) i

To all whom it may concern:

Be it known that I, JAMES B. JARMIN, a citizen of the United States, residing at Osceola, in the county of Polk and State of Nebraska, have invented certain new and useful Improvements in Windmills, of which the following is a speciflcatibn.

This invention relates to improvements in that class of windmills known as direct-acting, in which the wheel-shaft directly actuates the pump-rod as contradistinguished from that class in which transmitting-gearing is interposed between the shaft and rodas, for instance, the rim and bevel cog-wheels now commonly employed.

The difficulty with direct-acting mills as heretofore constructed arises from the great friction and binding developed and the jerky pounding stroke imparted to the pump-rod, which not only reduces theefticiency of the mill, especially in light winds, but injuriously affects the parts as well as the operal tion of the pump, rendering the mill `practically useless for many purposes.

This invention has for its objects the obviation of all these difficulties and the producl tion of a mill that shall be smooth, certain, and easy of operation under all conditions, that shall be strong, cheap, and durable in construction, that requires the minimum power to operate it, and that shall be easily and readily thrown into and out of operation Without the expenditure of any considerable l force or the employment of complicated or expensive mechanism. These and such other objects as may hereinafter appear are attained by the devices illustrated in the accompanying drawings, in which- Figure 1 represents a side elevation of a windmill embodying my invention, the wheel being shown in section. Fig. 2 represents a vertical sectional view, taken on the line 2 2 of Fig. l, lookingin the direction indicated by the arrows. Fig. 3 is an enlarged detail view of the operating mechanism for the pump-rod, which latter is omitted. Fig. 4 is a horizontal sectional View, taken on the line 4t 4 of Fig. l, looking in the direction indicated by the arrows; and Fig. 5 is a detail section of the mast.

Similar letters of reference denote the same parts in the several figures of the drawings.

Referring by letter to the accompanying drawings, A indicates the tower, which may be of l any suitable construction, that shown in the drawings being an ordinary wooden tower provided with the usual metallic cap B, bolted or otherwise secured thereto and constituting the upper bearing for the mast O, which may be supported at its lower end in any well-known or convenient manner. Upon the upper end of the mast is secured the masthead D, having its upper portion 0&- set and provided with a horizontal bearing E, in which loosely works a short shaft E, having mounted upon one end thereof the wheel G, which may be of any ordinary or desired construction, the wheel being keyed upon or otherwise rigidly secured to the shaft. Upon the opposite end of the shaft is rigidly mounted an eccentric H, on which rides a roller I, held in place by and loosely journaled in a bar J, pivoted at its opposite end to an arm,K, extending substantially horizontally from one side of the masthead, said bar constituting a guide and keeper for the roller in its vertical movements induced by the cam or eccentric upon the wheel-shaft. The journal or pivot L of the roller I is prolonged to receive the upper end of the pumprod M, which passes freely down through the lower portion of the masthead and through the mast to the pump, (not shown,) with which it is connected in the usual or any desired manner. Thus it will be seen that when the wheel is in the wind its rotation will cause a corresponding rotation of the shaft thereof carrying the eccentric H, and as the latter rotates it causes a vertical reciprocation of the roller I with the minimum friction, and such motion is imparted to the pump-rod, which works with a smooth steady motion without jerks or pounding in the strongest winds, and even in the lightest breezes the same motion will be imparted to the-pumprod, as the operating mechanism thereof is of such characteras to respond promptly to and with the least resistance to the action of the wheel and requires but little power for its operation. It will be observed that the length of the guide-bar J and its disposition are such that the journal of the roller I passes through a short arc of such radius that it reciprocates practically on a straight line and does not tend to produce an appreciable binding, springing, or friction nor require slotted parts to permit of lost motion in orderto avoid these difficulties.

From the side of the masthead opposite the wheel extends a pair of ears N, affording pivots for the vane O, and to one arm (preferably the lower one) of the vane surrounding the pivot thereof is rigidly secured aY bevel-gear P, meshing with a corresponding bevel-gear Q, loosely journaled upon a stud R, projecting from the side of the masthead in proper position to receive the gear. Cast with or otherwise rigidly secured to the gear Q is a segment S, which is preferably provided with sprocket-teeth on its periphery to receive the links of a sprocket-chain T, one end of which is securedto the segment and the other end of which is secured to an ear or other suitable projection U on a ring V, loosely mounted upon a sleeve W and confined against longitudinal movement thereon by any suitable means, such as by an annular shoulder on one end of said sleeve and a collar X, rigidly secured to the sleeve. The sleeve Wis slidingly mounted upon the mast C immediately below the masthead-that is, it is free to slide longitudinally on the mast, but is prevented fromrotating thereon by a spline-and-feather connection with the mast or by any other suitable device ordinarily the mechanism above described. It is of course necessary in such operations that the point of attachment of the chain T to the sleevev W shall swing around the axis of the mast with the relative movements of the masthead and vane, and to this end I provide a slotted bar rigidly secured at one end to the masthead and projecting downwardly .past the sleeve to receive a pin or bolt c, rigidly secured to the ring V, to which the chain is attached, both passing freely through the slot in the bar, so as to permit of the raising and lowering of the sleeve in the shifting operation.

These devices are exceedingly simple,cheap, and durable in construction,` are prompt and easy of operation, and produce the desired y result as eftectually, if not'more so, thanV any of the prior and complicated devices for this purpose known to me.

Having described my invention, what I claim, and desire to secure by Letters Patent,

1. In aA windmill, the combination with a mast, a masthead and a vane pivoted to said masthead, of a gear connection between said masthead and vane, a sleeve upon the mast, a connection between said sleeve and the gear on the masthead for rotating the same, and a rod for operating and" controlling the movement of said sleeve manually, whereby the relative angular positions of said vane and the masthead may be adjustably regulated and held positively in such adjusted positions, substantially as described.

2. In a windmill, the combination with a mast, a masthead and a vane pivoted to said head, of a gear connection between said vane and head, a segment attached to the gear on IOO v weight a, which will of course be raised when the gear is partially rotated to throw the mill out of operation, as above described, and when the pull-rod is released the counterweight serves to materially assist the swinging of the vane back to its position atright angles to the wheel, thus throwing the mill in wind to operative position. In point of fact in practice the usual result of pulling on the rod Y to throw the mill out of Y operation is to swing the wheel around at right angles to the vane instead of swinging the vane, which is usually held to its positionV by the wind; but at any rate the parts are caused to assume their different positionsby the masthead, a slee-ve upon the mast and movable longitudinally thereof, a` chain attached at its ends, respectively, to said sleeve and the segment for imparting movement to said gear connection, and a rod for actuating and manually controlling thev movement of the sleeve whereby the relative angular positions of said vane and the masthead may be adj ustably regulated and held positively in such adjusted positions, substantially as described.r

3. In a windmill, the combination with a mast, a masthead and the vane pivoted to the masthead, of a gear connection between said vane and masthead, a segment upon the masthead-gear, a counterweight attached to said gear, a sleeve slidingly, but non-rotatively, mounted upon theV mast, a ring loosely mounted on said sleeve, a chain connecting said ring and segment, said ring being connected, so as to rotate, with the masthead, and a rod `for actuating said sleeve, substantially as demasthead, of a gear connection between said vane and masthead, asegmentupon the masteured to said ring and Working freely in the head-gear, a eounterweght attached to said slot in said bar, and a rod for actuating the gear, a sleeve slidingly, but non-rotatively, sleeve, substantially as described.

mounted upon the mast, a ring loosely mount- JAMES B. JARMI. 5 ed on said sleeve, a chain connecting said ring Witnesses:

and segment, a slotted bar rigidly secured at WALDO BECKER,

one end to the masthead, a bolt rigidly se- C. I. BURT.

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