US465172A

US465172A - Windmill

Info

Publication number: US465172A
Authority: US
Publication date: 1891-12-15
Anticipated expiration: 1908-12-15

Description

(No Model.) 2 sheetssheet 1.

RHfBVARTs.

2 Sheets-Sheet 2. P. H. EVARTS.

' WINDMILL.

Patented Deo. 15, 1891.

(No Model.)

W/T/VESSES: W @526/ UNITED STATES APATENT OEEICE.

FRANK H. EVARTS,.OF` ARLINGTON, KANSAS.

WINDMILL.

SPECIFICATION forming part of Letters Patent No. 465,172, dated December 15, 1891.

Application ned nach 26,1891. "Serin No. 336,479. (No moan.)

To all whom, z5 may concern:

. Be it known that I, FRANK H. EvAETs, of Arlington, in the county of Reno and State f Kansas, have invented a new and useful Improvement in vVindmills, of which the followingis a full, clear, and exact description.

Myinvention relates to an improvement in windmills, and has'for its object to provide the mill with a sectional vane which in a high wind will be acted upon in a manner to automatically carry the wind-wheel edge to the wind and so hold it until the force of the wind abates.

. 11in any suitable or approved manner.

Another object of the invention is to so construct the vane that it will act to throw the wind-wheel out in a moderate wind or in a gale, as desired, and to so place the windwheel and the vanefthat one cannot be forced in engagement with the other.

A further object of the invention is to perfectly balance the turn-table upon the tower and to render the several parts so light and so perfect in action that the mill may be stopped or started by even a child.

The invention consists in the novel construction and combination of the several parts, as'will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures and letters ofreferenceindicate corresponding parts in all the vlews.

Figure 1 is a side elevation of the upper portion of a windmill having the invention applied thereto. Fig. 2 is a plan View of the portion of the mill shown in Fig. 1. Fig. 3 is an edge view ofthe wheel and an end view of the vane, t-he other portions of the'mill being in side elevation; and Fig. 4 is a detail sectional view of a modified form of the vane stem or body-bar.

The turn-table 10 is mounted upon the tower The turn-table is provided with two arms a and a', which are projected horizontally outward in opposite directions from opposite sides, and the turn-table is furtherprovided with a vertical tubular extension or casting a2, having -a perpendicular extension-arm as, provided 'the turn-table a shaft 13 is journaled, upon one end of which the wind-wheel14 is se curely fastened. The opposite end of the wheel-shaft 13 is providedl with the usual crank-'disk 14, united with' the pump-rod through the medium of a pitman 15. At the upper end ofthe tubular-.casting a2 of the. turn-table a guide-pulley 16 is journaled, for

table is'effected at or near the central por-` tion of the former, and the said stemor bod y bar extends beyond opposite sides of the turntable in a horizontal position, and'by thus locating the vane it is positively removed from the wind-Wheel; but the wind-wheel and vane are held one in front of the other and cannot by any possibility be brought into engagement. One end of the vane extends some distance outward beyond the edge of the windwheel, and upon this portion of the vane a series of vertical plates 18 is pivoted, the plates being so pivoted that they may be separated and made to stand ata right angle to the longitudinal axis of the stem or body bar or may be closed so as to stand parallel with the said longitudinal axis of the stein,

and-when in the latter position the contiguous. edges ofthe blades abutting, or practically so. The direction in which the blades are turned is illustratedv by arrows in Fig. 2.

the vane a shaft 21 isvertically'journaled in the body-bar, the lower end of which shaft has attached thereto a horizontal crank-arm 22, which is connected to the inner end of the pitman by a suitable link 23. Upon the upper end of the shaft 21 a bevel-pinion 24: is secured, and a mutilated'bevel-gear 25meshes with said pinion, which gear is fast upon one end of a line-shaft 26, horizontally journaled upon the stem or body-bar 17 of the vane. The shaft 26 extends beyond the end of the body-bar or stem,sand to its projecting ex-` tremity an arm 27 vis secured, provided with IOO Sey

. through the tubular casting of the turn-table to within convenient reach of a person standing at the base of the tower or upon a plat-v form or other support connected therewith. By means of the cable or chain'l the wind` wheel may be thrown in or out of the Wind and the windmill may be stopped or started thereby.

Inpractice the gearing described is housed,

so as to protect it from the weather, and the4 cal position. When the blades 18 are closed,

the .fan assumes a horizontal position at one side of the wheel-shaft. j

While I have described the position of the fan as horizontal when the blades 18 are closed, the blade of the fan actually inclines downward and outward, so as to present its full face to the wind when the edge of the wheel is likewise so presented.`

.When the chain or cable 31 is loosened at its lower end and the weight 28 upon the arm 27 yturns the line-shaft 26 in such manner as to bring the fan in a vertical position, (shown in Fig.,1,) then the blades 18 are in an open position, and when the blades of the vane are in this position the wind-wheel is swung around in a position to be driven by the wind. The weight 28 maybe adjusted upon the arm 27 in such a vmanner that a moderate wind striking against the upright fan will more than counterbalance the weigh t, or the weight may be so adj usted that a gale of wind will be required to accomplish such a result.

If, for instance, the weight is adjusted in a manner to require a high wind 'to automatically operate the vane, when such a wind strikes the upright fan 29 the fan is blown down to a horizontal position and the blades 18 are closed, whereupon as the edges of the blades are presented to the wind the windwheel will be swung around so as to present itsl edge, and the mill will be stopped. If the wind has not sufficient force to blow the fan entirely downward, thus only partially closing the blades, the speed of the wind-wheel will be slackened; but the wheel will not be stopped.

the cable or chain 31 is drawn down until the fan is carried to a horizontal position, and the chain or cable is then made fast. As the weight just slightly more than counterbalanc-es the weight of the blades, the attached mechanism, and fan, it requires but little strength to close the blades, and the windwheel is so placed upon the turn-table that almost an equal weight is brought to bear at each side of the center of the turn-table, thus imparting thereto an easy poise and a perfect balance and enabling the upper structure of the mill to respond quickly to the action of the vane.

The body-bar or stem 17 of the vane is preferably made of wood, but may be made of metal, if desired, in which event the body or stem is constructed of a tube, as shown at B in Fig. 4, and the tube is strengthened by an internal spring-brace B.

Having thus described my invention, I claim as new and desire to secure by Letters PatentV 1. The combination, with the turn-table, the vertical wind-wheel journaled thereon and connected with the pu mp-rod, of the vane A, consisting in a horizontal bar iixedly secured between its ends to the turn-table parallel with the said wheel, a shaft 26journaled along the short arm of the vane, provided at its outer end with a weighted arm 27, a blade 29 between its ends, an armBO near its inner end, and a gear-wheel 25 .at its inner end, the

vertical shaft 21l on the vane and provided with a gear-wheel 24e, meshing with gear 25, and a crank-arm 22, alseries of vertical blades 18, pivoted on the long arm of the vane, a pitman 21, connecting said blades and connected at its inner end with the crank-arm 22, and a chain or cable extending downward from the arm 30 for operating the same by hand, substantially as set forth.

2. A windmill comprising the tower, the turn-table l0, having oppositely-projecting horizontal arms a a', vertical tubular eXtension a2, a vertical arm as on upper end of said extension, provided with a guide 01,4 at its upper end and pulley 16 at its lower end, the pump-rod 12 the shaft 13, journaled on arm a and provided with a crank, at its inner. end connected with the pump-rod and at its outer IOO IIO

end with a vertical wind-wheel, the vanebeam secured fixedly betweenits ends to the arm a parallel with the wheel and provided FRANK H. EVARTS. Witnesses:

JULIAN E. EATON, CLAUDE EATON.