US252912A

US252912A - Wind-engine

Info

Publication number: US252912A
Authority: US
Publication date: 1882-01-31
Anticipated expiration: 1899-01-31

Description

(Model.)

- A. THOMSON.

a WIND'ENGINE. No. 252,912. Patented Jan. 31,1882.

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ALEXANDER THOMSON, OF AMES, IOWA.

WlND EN GINE. I

SPECIFICATION forming part of Letters Patent No, 25.2,912, dated January 31, 1882.

Application filed J'anuary i t, 1881. (ModoL) Io all whom it may concern:

Be it known that I, ALEXANDER THOMSON, a citizen of the Dominion of Canada, residing at Ames, in the county of Story and State ot' Iowa, have invented certain new and uscful Improvements in Wind-Engines; and I do hereby declare. the following to be a i'ull, clear, and exact description of the invention, such as will enable others skilled in thc art to which itappertains to make and use the same, reference bein ghad tothe accompanying drawings, and to the letters or figures of reference marked thereon, which forma part ot'this specication.

Figure 1 is a fl'Ollb'QiCVltiOll of a wind-engine providedwith my improved governor. Fig. 2 is'a side elevation of the'same. Fig. 3 is a top plan view of thc parts comprising the governor. Fig. 4 is a perspective view ot' the main or governor vane, showing the attached mechanism for operating the same; and Fi 5 is a view of thc vane-carrying bar or arm.

Similar letters of reference denote like parts in the several drawings.

Oonsiderable trouble and annoyance have been experienced by owners and users of windengines by the variable power exorted by such engines, such va'riable force or power being caused by the wind-wheel attached to such engines presenting at all timesits entire front surl'aceto thewind,irrespectiveofthet'oreeexerted by the wind at such time. Thus wind-engines unprovided with means by which the extent of surface of the wind-wheel may be regulated with regard to the force of the wind are, as a rule, unreliable and untrustworthy for the rea son set forth above.

To remedy the above-named defect, and at the same time to provide a cheap, simple, and durable governor for wind-engines, has been the object of the present invention; and to this end it consists n a suitable main or governor vane attached by pivoted hearings to a bar extending from side to sido across the shaftbearing head of the wind-wheel, and secured thereto, and iu the means employed to make such main or governor vane automatic in its movements, as hereinafter described.

It further consists in certain novel mechanism whereby the wind-wheel may be made to present more or less of its face to the wind, as

hereinafter set forth; and, iinally, it consists in the construction and operation of the various parts as a whole, substantially as hereinafter set forth. l

lieferring to the drawings, A is a wind-wheel, B the revolving shaft-bearing head or turn table, O the shat'tjuurnaled in such hend, and D the frame, all ot' which are constructed in the usual form of wind-engines as heretofore employed.

To one side of the. head B, I secure a suitable trnssed bar, E, the said bar extending horizontally in the same plane as-the wind-wheel, and of length about equal to the diameter of said wheel. I

To one end of the bnrE, I secure a bar or arm, F, the said baror arm F being secured to the trnssed bar E by staplesf, and extending outwardly to some distance from E, the outer end of the arm F terminating in a downward yprojecting portion,f as shown.

Gr represents a vane pivoted hy suitable bearings, g, to the arm F, the normal position of the said vane being the horizontal plane, as shown in Figs. 1 and 2. To insure said horizontal plane being normally retained "by the vane G, I providethe latter at each of its faces with outwardly-projecting arms H H at right angles totheplanes ofsaid faces. To the lower bar, I-I,.I alx an adjustable weight, h. lprovi'de the bar I-l' with a small vane, h', the object ot' which vane It' will be hereinafter fully explained.

I represents a stop projecting from the under side of the vane G and operating, in conjunction with the stopf', to liuiitthe' movement of the vane, as will be readily understood.

Upon the upper surface ot' the bar E, I provide an upwardly-projecting standard, J, to which I pivot a lever, K, the outer end of which lever is connected to the vane G by a cord or chain, 70, while a cord, 79', extends to the ground from the opposite end of the lever, whereby the vane may berotated, th us presenting greater or less extent ot' surface to the wind, as desired.

In order to balance the pressure of the wind against the ends of the bar E, I provide the end of the said bar opposite to the Vane Gr with a small tail-vane, L.

The operation of my improved governor is IOO as follows: The vane G being in horizontal position normally, will so remain until the forre or pressure ot the wind against the t'aceof the small vane h' tilts the vane Gr, thus presenting 5 the full face of the latter (more or less) for a short time to the pressure of the wind, thereby causing (through bar E) the head B to revolve, and prerenting the edge of the wheel to'the force of the wind. The instantthc wheel is turned the pressure of the wind is lessened on the vane G. The weight h causes the vane to resume its normal position. This operation automatically takes place whenever the force of the wind overbalances the weight h, by adjnsting which it will be plainly seen the wieel may be supplied with any desired pressure of wind, thus maintaining a nearly unil'orm rate of speed.

It, will be seen that thc vane Gr, pivoted iu zo loose bearings, as described, will revolvc easily 0 end, substantially as described.

2. In a wind-engine, a main or governor vane, Gr, pivoted to the outwardly-cxtcuding arm F, and provided upon its under side with a projecting arm, H, and adjustable weight h, whereby it retains normally a horizontal position, in combination with an upwardly-projecting arm, 11', having a vane, L', attached thereto, and operating to present the face of the vane G to the wind when the pressure upon the vane overbalances the adjustable weight, substantially as described.

Bi In a wind-engine, the limiting-stop f' of the arm F, in combination with the stop 1 upon the under side ot' the vane Gr, whereby the latteris limited to a quartenturn upon its'axis, substantially as described.

4. In a wind-engine,t11e barE,provided with the standard J, lever K, and cords or chains k and Id, whereby the vane Gr may be kept from the horizontal plane, and whereby it may be revolved, substantially as described.

5. In a wind-engine, the pivoted main vane G provided with projecting arm H, having weight h, and arm H', having vane h', in combination with the bar E and revolving, head B, substantially as and for the purpose set forth.

6. The combination of the vane G, provided with projecting aims H and H', weighth, small vane h', and stops If', and pivoted to the projecting arm F of the bar E, with the standard J, lever K, and cords kk', substantially as described.

In testimony whereof I attix my signature in presence of two witnesses. A

ALEXANDER THOMSON. Witnesses:

M. J. UuossMAN, l). A. NEAL.