US372148A - Windmill - Google Patents

Description

(No Model.)

2 Sheets-Shet 2. v

G. HENDERSON.

WINDMILL.

Panentedoot. z5, 1887'.

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UNITED STATES PATENT OFFICE.

GEORGE HENDERSON, OF PORTLAND, OREGON.

SPECIFICATION forming part gf Letters. Patent No. 372,148, daten october 2s, 1887.

Application filed April 1B, 1887. Serial No. 235,159. (No model.)

Portland, in the county of Multnomah`A and State of Oregon, have invented certain new and useful Improvements in Windmills; and

A Ido hereby declare that the following is a full,

clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to makeand use vthe same, reference being had to the accompanying drawings, which form a part ofthis specification, and in which- Figure lisa perspective viewI of my improved windmill. Fig. 2 is a vertical sectional view of the same. Fig. 3 is a top plan view, and Fig. 4 is a vertical sectional view, of a modified form of the shaft of the mill.

Similar numerals of reference indicate corresponding parts in all. the figures.

My invention has relation to that class of windmills in which the wheel revolves in a horizontal plane, and in which inclined vanes are arranged in a rounded cone having one side covered so as to allow the windonly to bear against the vanes of one side; and it consists in the improved construction and combination of parts of sue-h a windmill, as hereinafter more fully described and claimed.

In the accompanyingdrawiugs,the numeral 1 indicates a verticalshaft secured suitably in the supporting-frame ofthe mill,and this shaft has a collar, 2, provided with antifriction rollers 3 in its upper edge, against which the lower end of asleeve,4, turning upon theshaft, bears. The lower end of this sleeve is provided with a suitable beveled gear, 5, meshing with another pinion, 6; or the sleeve may be provided with any othersuitable means for conveying and converting motion imparted to the sleeve. The sleeve is provided at its upper end with a disk, 7, to which the upper narrower ends of the twisted vanesS are secured,Y

A ported at the inner ends of the radiating arms y and projeclingto the disk at the upper end of the wheel. An open frame, 12, is secu'ed upon the vertical shaft below the collar' snpporting the sleeve of the wheel, and the upper and lower ends of this frame are formed into vertical bearings 13 and 14, the upperbearing having the sleevejournaled within it, and the lower bearing being secured to the vertical shaft by means of a suitable setscrew, 15. The upper bearing of the frame is formed with two annular steps, 16 and 17, the upper step, 16, being of a less diameter than the lower step, 17, and two collars, 18 and 19, are journaled,

respectively, upon the upper and lower step.'

These collars are provided each with two radieting arms, 20 and 21, and the outer ends of these arms are provided with nuts 22, and are secured,respectively,in eyes 23 and 24, projecting from the lower edges of twoshields, 25 aud 26, fitting each over one-fourth of the surface of the conical wheel,and having upwardly-projecting eyes 27 and'28 at their upper ends. The one 25 of the shields is formed with a vertical bearing, 29, in the center of apinion, 30, toZ

secured in the eyes of the shield, thus securing the bearing to the shield, the said bearing being journaled upon the upper end ofl the vel.-

tical shaft, and a vertical bearing, 33, is formed at the inner end of a flat bar, 34, and is journaled upon the shaftbelow the pinion, and has an outwardly-projecting screw-threaded arm, 35, to which one of the eyes28 of the other shield, 26, is secured by means of nuts 36. The upper end of the vertical shaft hasa sleeve, 37, journaled upon it, and a guidevane, 38, is secured to thisl sleeve, and has its forward end secured to the upwardly-projecting arm 39 of the Hatbar, and has the inner end of an arm, 40, secured to its rear'portion,

'the outer'end of which arm has the other eye of the shield 26 secured upon it by means of nuts 4l.- v

The forward arm of the guide-vane or steeringlvane is formed with a verticalbearing,42, in which a shaft, 43, is journaled, and the lower end of this shaft has a cog-wheel, 44, se-

cured upon it, meshing with the pinion upon the-central shaft, the lower end of lthe ec. centric-shaft having thc cog-wheel being journaled in the radiating-arm. n v

The upper end'of the ecceutric-shaft is provided with a regulating-vane, 45, which normally stands at a right angle to the steering- I vane, and' this vane is provided with a forwardly-projecting arm, 46, to which a coiled spring, 47, is secured, the said spring having its other end s ecured to an eye, 48, upon the the regulating-vane is in its normal lposition 4 the other shield will cover lthe other fourth of the wheel 'to the rear of the first shield, so

that one side of the wheel is covered and the 'other half is uncovered and open for theac; tion of the wind', which in this manner will` pass .along the said uncovered side, and will, byvstriking the. vanes, revolve the wheel.

When the wind becomes strong enough to force the regulating-vane backward, the cogwheel, meshing with the pinion,wil1 cause the said pinion 'and the shield to be revolved, bringing the. shield around upon-the formerly unprotected side, and as the shield is brought forward by the wind increasing in strength it will gradually cover the exposed side of the 'I wheel, and consequentlyprevent the Wind of the wheel facing thewin may be stopped.

from acting upon the vancs,"so that the speed of tle wheel may not be too much increased, the spring being adjusted to allow the shield to be turned forward and to cover the wheel in such amanner that the speed of,the wheel will not be increased by the increasing force of the wind. It lfollows that as the wind will decrease in force after the shield has been turned forward the said shield willnbe turned back by the'force o f the spring. l,

The central vertical' shaft is hollow, and a cord or chain or wire, 49, is passed through theshaft from the upper endv and passes to the long arm of the regulating-vane, where it is secured; and it will thus be seen that by drawing downward upon the said cord or wire the regulating-vane maybe tilted or drawn around, turning the shiel tocover the side ,so that the wheel If desired, the central vertical shaft may be formed with aconical upper end, 50, upon which fits acorrespondingly-shaped socket, 5l, secured within the tube of the wheel, and

. a short vertical central shaft, 52, has its lower conical end pivo'ted in a socket, 53,'formed in one with the other socket, and has the guidevane secured to it and the pinion turning upon it. The shafts are formed with an axial bore, 54, similar to the axial bore of the `vertical i 'central shaft of the other form, and has the cord or wire passingy through it in the samemanner 4 l The parts of the'above-,described form operate in thesame manner as in the firstdescribed form; but in this form the friction of the wheel is carried upon the conical point of the shaft, insteadof upon the anti-friction rollers in the collar upon the central shaft.

VIf desired, the inner lining of the conical wheel may be omitted, the said lining merely serving to exclude the wind from the interior of the wheel, although it will operate with nearly the-same ease without the lining.

Havingth us described my invention, Iclaim 'and desire to secure by Letters Patent of t-he United Statesand having inclined vanes secured at the top and bottom of the cone, in combination with a shieldl at one'side of the cone, covering the same, said shield 'being in two parts, which are adapted to be moved toward or away from each other around the wheel, as and for the purpose shown and set forth.

2. In a wind-wheel, the combination of a rounded cone having vanes secured obliquely to its surface and journaled to revolve in a horizontal plane, a rounded shield covering one-fourth of the surface of the cone and pivoted to the central shaft to revolve around the cone, and having a guide-vane connected to it and standing in the same plane as the forward edge of the shield, and another shield covering one-fourth of the surface of the cone and pivoted upon` another shaft and adapted to re- `volve around the cone, and having means, substantially as described, for bringing it for- -804 l. A wind-wheel'shap'ed as a rounded cone ward by the increasing strength of the wind, y

as and for the purpose shown and set forth.

.-3. In a windmill, theI combination of a rounded 4cone having'vanes secured obliquely to its surface and journaled to revolve in a horizontal plane, a frame radiating from the upper end of the central shaft of the cone and journaled upon the same, having a rearwardlyprojecting vane, and having a rounded shield supported from it, covering 'one-fourth of the surface of the cone, a vertical shaftvjournaled in the frame and having a cog-wheel upon its lower end, a pinion journaled-npon the upper end of the central shaft and having arms supporting a shield covering one-fourth of the surface of the cone and meshing with the cogwheel, and a regulatingvane secured upon the upper end of the eccentric vertical shaft and .having a spring for holding it at a right angle to the guide-vane when not influenced by the wind,`as and for the purpose shown and set forth. 4

f In testimony that I claim the foregoingas my own I havehereu'nto aixed my signature in presence of two witnesses.

GEORGE I- IENDERSQN.`

VViinesses: t

S. M. GrLMAN, J oHn GIBSON.y

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