US310385A - ooffield - Google Patents

Description

(No Model.) 2 sheetssheen 1.

P. T. COFPIELD.

WINDMILL.

No. 310,385. Patented Jan. 6, 1885.

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2 Sheetgf-*S-heet 2.

(No Model.)

P. T. GOFFIBLD.

WINDMILI., Y No. 810,385. Patented Jan. 6. 1885..

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UETTTEn STnTEs PATENT OEETCEo PETER T. COFFIELD, OF .NEWv CARLISLE, OHIO, ASSGNOR TO HIMSELF, CHARLES H. NEFF, AND ALB ult" L. VOOLFiY, OF SAME PLACE.

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TLDECIFCATION farming partei' Letters Patent No. 310,385, dated January 5, 1885.

Application tiled March 212, 1584.

To (LZ/ wlw/nj t www] concern Be it known tirati, PETER T. CoEEInLD, a citizen ofthe United States, residing at New Carlisle, in the county of Clark and'State of Ohio, have invented new and useful Improvements in TWindmills, of which thefollowing is a specification.

This invention relates to improvements in that class of attachments for windmills or en` gines in which automatic devices are employed for locking and unlocking a geared windmill to the derrick. It is well known that when a windmill is geared for the purpose of running a shaft to which machinery is attached and resistance is applied tothe shaft running vertically through the mill there is a tendency to walk away from the work, and also move out of theline of the wind, thereby losing power and placing the wind-wheel in such a position that the wind cannot drive it.

The object, therefore, of my invention is to provide means by which the wind-wheel is prevented from being thrown out of the winds eye, but constantly kept to its work, and thus to impart a regular movement to the gearing for transmitting the motion to the machinery or other object to be driven, and to do thisin a very simple and reliable manner, so that the mill will perform its work without sudden shocks, by which the machinery is easily disarranged, and also that the full power may be exerted, no matter how much the wind changes. This I accomplish in the manner and by the mechanism hereinafter described and claimed, reference being made to the accompanying drawings,illustrating my i nvention,in which- Figure l represents a plan or top view of my improvement in position and properly geared for operating the machinery. Fig. 2 is a side elevation of the same. Fig. 3 is a side elevation taken at right angles to Fig. 2. Fig. 4L is an enlarged sectional view of the box for the push-bar or spindle,containing a spring to prevent shocks or sudden jars to the operating mechanism; Fig. 5, an end view ofthe same. Fig. 6 is a detail view of the clutch or brake lever. Fig. 7 is a detail sectional'view of the brakelever when forced against the bed or derrick plate by means ofthe spring presserfoot, on an enlarged scale.

(No model ,l

Like letters of reference indicate like parts in all the figures.

In the said drawings, A indicates the top or upper end of the mast or derrick, to which the circular bed-plate B is secured. The main vertical shaft C passes through this plate, and has a sleeve, c, upon `which the vane-bar D freely revolves through the medium of an arm, a, secured to the vane-bar and journaled on the sleeve ,0.

To the upper end ofthe shaft C a bracketed plate, E, is secured by a setserew or otherwise, and having at one side a bearing, c, for the driving-shaft c', which is journaled at its opposite end in an arm, c?, that is extended up ward, and has attached Vto it a guy rod orbrace, f, connected to the vane-bar, to assist in supporting it. A pinion, b, on the shaft c meshes with a gearwheel, d, secured tothe shaft C, and imparts motion tothe machinery, pumps, &c., when acted on by the wind-wheel.

At one side ofthe bracketed plate E is secured a bent or curved arm orlever, g, which bears against a push-bar, h, arranged in a box, h. This box is provided with trunnions and is journaled in the standards' or brackets i, secured to the vanesbar, so that said box can freely oscillate. The push-bar h is reduced at one end, and has a coiled spring, r, around it, which bears against a shoulder in said box 71,', the object of the spring being to prevent any sudden shock or jarring to the gearing and machinery when the arm y comes in contact with the push-bar 7L. To the opposite end of this push-bar is pivoted the lever F, having at its upper end a slot fitting over the reduced end of said puslrbar, and al lowing the lever to oscillate freely on it as it moves. The lever F is provided with an open slot,f, having sharp edges, which form clam-p` ing or gripping jaws when the lever is tilted, one side of said jaws engaging with the upper end and the other side with the lower surface ofthe circular bed-plate B. The lower end of the lever F is extended, and when the vanebar moves in that direction it comes in contact with an arm or bent lever, k, secured to the lower side of the vane-bar, and releases the lever F from its'gripping action on the bed-plate.

At the rear side ofthe leverF is secured a ICO spring presser-foot, Z, which bears ou the upper surface of the bed-plate B, and always holds the lever in contact lwith said plate and in position, and.. prevents the possibility ofV said lever slipping, thus forming an automatic clutch or brake lev r. The vane will locate itself in line with the wind7 and the bracketed plate is brought to a stop by coming in contact -with the spring push-bar, which, pressing against the spring within the pivoted box, obviates any shock, and, passing through said box7 it fastcns the clutch on the surfaces ofthe bed-plate.

Having thus described niy invention, what l claim is l. In awin d niill, aspring push-bar provided with a pivotal clutch-lever for engaging` with a circular base-plate, and acted on by an arm or lever attached to the vane-bar of the mill, substantially as described.

2. In a windmill, a pivoted clutclrlevcr provided with spring presser-foot engaging` with both sides of a circular bed-plate, and operated by a spring push-bar and an arin attached to the vane-bar, substantially as described.

3. ln a windmill, the combination, with a circular bedplate, ofaspringp ish-bar inounted in a pivoted box secured to the vane-bar, and attached at one end toa clutch-lever, and acted against at the opposite end by an arni connected to the bracketed plate lil, substantially as described.

et. ln awindinill, a clutch-lever havingjaws to engage with the upper and lower surface of a circular bed-plate at ached to the upper end of the dei-rick, and operated by a spring pushv` bar, against which an arin on the vane-bar bears, and a spring presser-foot, sul'istantially as described.

o. rlhe combination, with a circular bedplate, of a spring push-bar inountcd in a pivotedrbox, and connected to a clutch-lever at one end, and acted against by an arni connected to the wheel-frame, with an arni secured to the lower side of the vane-bar, for the purpose of unlocking the clutch-lever, substantially as described.

G. The combination, with a circular bedplate, of a spring push-bar mounted in a pivoted box journaled in standards on the vanebar, and connected at one end to a pivoted clutch-lever provided with a spring presserfoot, and having chiniping-jaws, with an arm secured to the lower side of the vane-bar, and an arin connected to the supportingfrarne, all arranged for operation substantially as described.

7. 'ihe conil'iination, with a circular bedH plate, of a spring puslrbar mounted in a bob; having truunions journaled in standards on the vane-bar, and connected at one end to a pivoted clutch-lever, with an arm attached to a bracketed plate secured to the bearing of the vertical shaft, and carrying the gearing and windwheel shaft, substantially as described.

The coinbination, with a circular bedplate, of a sprint` push-bar, a pivotcd clutch lever secured thereto, and carrying a spring presser-foot, with an arin attached to a bracketed plate secured to the bearing ofthe vertical shaft, and carrying the gearing and the wind-,wheel shaft, all arranged substantially as described. Q

lu testimony whereof I have hereunto set niy hand in the presence ot' two subscribing witnesses.

FETES T. COFFIELD. `lWitnesses:

ALBERT L. VfooLLaY, Crus. Il. irxso.

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