US517674A - Windmill - Google Patents

Description

G B. WILLIAMSON.

WINDMILL.

(No Mqdel.)

No, 517,674, Patented Apr, s, 1894.' l

gals! `tion of the arrows.

UNITED STATIES PATENT OFFICE.

oIIARLEs E. wILLIAIvIsoN,- oir-GRAND RAPIDS, IxIIoIIIcAN.v

,.WINDMlLL.

SPECIFICATION forming part of Letters Pate-nt No. 517,674, dated April 3, 1894.

Application filed April 11. 1893. seiipi IIa/169,903. (No moan.)

To @ZZ whom it may concern.- v

Be it known that I, CHARLES E. WILLIAM- SON, a citizen of the United States, residing at Grand Rapids, in the county of Kent and rState of Michigan, have invented certain new and useful Improvements in Windmills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such aswill enable vothers skilled in the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements in wind wheels, and it has for Its objects among others to improve generally the construction of the mill whereby the same is rendered less complex, more efficient in operation, and the cost reduced toa minimum consistent with satisfactory results.

Other objects and advantages of the invention will hereinafter appear and the novel features thereof will be speciically dened by the appended claims.

The inventionis clearly illustrated in the accompanying drawings, which, with the letters of reference marked thereon, form a part of this specification, and in Which- Figurev 1 is a side elevation with parts broken away and others in section showing a wind wheel constructed in accordance with my invention. Fig. 2 is a vertical section on the line 2-2 of Fig. 1, looking in the direc- Fig. 3 Vis a view of the caxn and the wheel which it actuates. Fig. 4 is a detail in side elevation showing the wheel hub with its cam and in dotted lines the pitman and the wheel thereon. Fig. 5 is a perspective View of the main casting and turn table with its brake shoe.

Like letters of reference indicate like parts throughout the several views.

Referring now to the details of the drawings by letter, A designates the upper portion of the tower or support of any well-known construction, provided with the cross braces a for a purpose which will soon be made apparent.

B designates atube supported in the upper part of the toweror support A and at its upper end carryingA the castingB which is offset as at 'b on the same side as the tail vane fand thus the center of gravity of the wheel is brought nearer the center of the mill as will be readily seen from Fig. 1.

' 'the wheel revolves.

C is the tail vane casting havinga tubular depending portion surrounding the tube B as seen in Figs.\1 and 2, and an'enlarged portion c at thejunction of the offset c with the upper end of the depending portion C and upon which the enlargement bf of the tube B rests as seenl in Fig. 1.

@Dis a vstationary shaftsupported in the casting B and upon this shaft the hub d3 of This wheel D may be of any wellknown or approved Vforms of construction,'its hub d being shown onlyin Fig. 4. Fast on this hub of the wheel is the cam E which is of novel contour, being practically half a circle with the upper face on slightly inclined lines as seen in Fig. 3; this is important for the reason that by this shape I get a quick up stroke on the pump rod, then a rest and then a quick down stroke, thereby gaining a strong draft on the Water to prevent the water drawing back past the plunger of the pump and by being held on the up stroke while the wheel makes a half revolution it gives a chance for the vacuum or space below the plunger to fill up with water before the down stroke is made,` thus doing Vaway With the pounding of the mill.

' F is the pitman designed for connection with the pump` rod in any suitable manner, or itmay be a continuation of the pump rod; it is formed at its` upper end with a liattened kportion f which, at its upper end, is provided with lan elongated' opening f as seen best in Fig. 2 and the object of which will soon be explained. The lower portion of the iiattened portion is provided with a vertical slot f2 which is odset from the lower portion of the pitman as seen in Fig. 2 and is open at its lower end as is also shown in' said Fig. 2. This open-ended slot permitsy of the ready removal of the pitman when desired' or of its being replaced without disturbing any of th'ev other parts. This pitman has journaled thereon a wheel G which is arranged in vertical line with and designed to rest upon the cam E as seen best in Figs. 1 and 3.

I-I is the tail vane; it is held to the casting C in any suitable manner, as by the arms h and the inclined braces h( It also has secured thereto the spring arm I which at its free end carries a brake shoe I having a IOO curved face as seen best in Fig. 5 to act upon the hub of the wheel as the latter is thrown around.

.I is the governor pivoted atj on a stud projecting from the casting Gand upon one side of its pivot provided with an adjustable weight J', its other end being provided with thechain or cord J 2 which is designed to lead to any desired place for the purpose of pulling or throwing the mill out of gear when desired. This governor arm is pivotally connected with'the casting B' by means of the rod or link K pivotally connected at its ends with the said casting and arm as seen best in Fig. l.

L is a spring having its ends coiled or otherwise fastened around a pin 7e projecting from the upper end oi the casting B', and coiled around a pin Z held in the walls of the open ingf in the upper end of the pitman as seen best in Fig. 2, the spring being bent upon itself at its center to form the loop k which extends through the said opening and bears against the flattened portion of the pitman as seen in Figs. l and 2. This forms aguide for the pitnian and cushions it on the down stroke and aids materially in preventing` pounding of the mill.

The operation will be readily understood from the foregoing description when taken in connection with the annexed drawings, and a further detailed description thereof is not deemed necessary.

The pin Zon which the spring L is supported in the pitnian may be readily adjusted into any one of the sets of holes Z shown in Fig. 1 to regulate the tension of the spring.

In order that power may be transmitted from the wheel shaft I have provided on the hub thereof a sprocket wheel M over which passes the sprocket chain M which also passes over the sprocket wheel N on the shaft N held in the depending lugs m which depend from the enlarged portion n of the tube c as seen in Fig. 1. This shaft is extended at one end and has connected therewith the coiled spring or ilexible shaft O which communicates motion to thc vertical shaft P supported in the cross braces a ot' the tower and which carries the band pulley P from which motion 5o is conveyed to any desired place by means of the belt Q all as shown in Fig. l. It will thus be seen how motion is imparted and that the flexible shaft or spring permits ot' the rotation of the shaft P regardless of the varying movements of the wind wheel.

Modifications in detail may be resorted to without departing from the spirit of the invention or sacrificing any ot its advantages.

S is the auxiliary vane; it stands ataright angle to the tail vane and is carried by the arm s which is held in the casting B as seen in Figs. l and 2. It is for the purpose of working automatically against the governor to carry the wheel more or less out of the wind as the pressure is against it to regulate the motion; it is placed at the bottom of the wheel instead of at the center; it is designed to be adjustable more or less away from the center according to the strength of the wind currents in diiterent localities. It automatically controls and regulates the motion of the mill and in its action is similar to a governor on an engine.

1. The combination with the main casting having an offset, to the rear only of the vane casting having a like offset, and the wind wheel carried bya shaft journaled in the firstmentioned casting whereby the center of gravity of the wheel is brought near the cen- 'ter of the mill, substantially as specified.

2. The combination with the wind wheel and its casting having offset to the rear only, of the tail vane and its casting having alike olset, the arm held in the said oitset, and the auxiliary vane carried by the wind wheel casting at right angles to the tail vane near the bot-tom or lower edge of the wind wheel, substantially as shown and described.

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

CHARLES E. WILLIAMSON.

Witnesses:

DENNIS L. ROGERS, EMILY C. MoHL.

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