USRE4330E - Improvement in water-wheels - Google Patents

Description

J. T. OASE'. WATER WHEEL.

Reissued Apr. 11, 1871.

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JOEL T. CASE, OF BRISTOL, CONNECTICUT, ASSIGNOR TO THE NATIONAL WATER-WHEEL COMPANY.

Letters Patent No. 108,757, dated November 1, 1870; reissue No. 4,830, dated April 11, 1871..

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IMPROVEMENT IN WATER-WHEELS.

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I, JOEL T. CASE, of Bristol, in the county of Hartford and State of Connecticut, have invented a new and useful Improvement in Water-Wheels, of which the following is a specification.

My invention consists of the. peculiar construction and arrangement of the chutes in the case which surrounds the wheel,-and in the combination of the chutes and gate .as hereinafter described.

In the accompanying drawin Figure 1 is a plan. or top view of a wheel of my invention;

Figure 2, a side elevation of the same;

Figure 3, a horizontal section of the same on line a: 2:,- and Figure 4, a horizontal the same. A designates a wheel of the class which receivesthe water upon. its edge, apd which wheel .is secured to the shaft'E, having its hearings upon a step in the spider E and in the box I, as in ordinary wheels. Y

Surrounding the wheel A is the case' G, in which section of a modification of arranged the eccentric or tangential chutes a b c d.

f'lhese chutes are formed in three groups; the in-' let or port, 1 2 3, of each group occupies one-sixth of the-circumference or outer edge of the case G, while at their discharge .end each group occupies one-third of theinner edge of the case G, the discharge end of the chutes thus being divided at equal distances from each other upon all sides of the wheel A, as shown in flg.'3.*

Surrounding the case G is the gate H, of cylindric or hoop form, and is provided with openings 0 and solid portions or rims f,-each of which occupies one-sixth of the gate H.

The upper edge of the gate H is provided with segment-gear g, which meshes into pinion h on the shaft i.

In figs. 2 and 3 the solid portion or rims fare in front of the blank space between the groups of chutes, and the openings 0 are immediately in front of the 'inlets' or ports'l 2 3, and consequently the chutes are all open.

If desired to reduce theflow of water to the wheel the gate H is turned, by means of shaft 5, &c., until the rims f or a portion of them) cover the mouth of the chutes which reduces the flow of water by onefourth. It turned so as to cover the chutes d 0 only one-half the water is used, and so on until the gate is entirely closed by the rims f covering the whole of each inlet or port 1 2 3.

The ports 1 2 3, if desired, might be arranged-on the lines It and opened by a sliding gate, which would produce the same effect by means of the same chutes as above described.

,In fig. 4 is shown a modification of the case G in which the inlet or port 4 4 of the two groups of chutes a b c d p s occupies one-third of vthe circumference or outer edge of the case G, while the discharge end of each groupof chutes occupies one-half of the inner edge of said case.

Theblank space 5 between the groups of chutes occupies one-sixth of the outer edge of said'case.

One object of this modification is to increase the width of the mouth of the chutes. The gate H is formed of two hoops, m n, each provided with openings 8' and rims f, each opening occupying one-third of eaek hoop,.and each rim f one-sixth of the same. Two shoulders or projections, o o, are secured to the inner hoop m, and a projection, 0', to the outer hoop n.

By any proper mechanism the hoop m is rotated in the direction indicated by the dart, and,after moving one'sixth of its circumference, one of the projections 0 will strike the projection 0', when both hoops m n will rotate together until the rims f of thetwo hoops entirely cover the ports'4 4 and thusclose all of the chutes.

By reversing the operation of the gate'H'the chutes are opened inlike manner, as shown in the drawings. I I

' This modification also enables me to divide the amount of water used into smaller fractions, by using only one-sixth of a full-gate, and so on, as desired,

a while the style, shown in the other figures of the drawing, is graduated by fourths-the case G in both styles being provided with the same number of chutes.

The case G may be madedeeper on its outer edge than at its inner edge for the purpose of increasing the-area of the mouth of thechutes, if desired.

By my invention one or more chutcsnpon opposite sides (or at equal distances around the wheel) can .be fully opened, while all ,the other chutes remain closed. I

The ohnteswhich are used being wholly opened The peculiar mechanism for operating the gates is not considered essential .to the other parts of myinvention. v

I claim as myinventiou- 1. The case G, with the in groups, substantially as and for the purpose described.

2. In 'oombination with the foregoing, the gate H,

the whole operating together, as and fbr the purpose set forth.

3. Bo combining the chutes a b c dof the case surchutes a b o 1 arranged roundingthe wheel A with the gate for closing said chutes that a partial movement of the gate is made to fully open a portion of said chutes and at the same time to leave the remaining portion'of the chutes closed, substantially as and for the purpose described.

JOEL CASE.

Witnesses:

J AMES 811151131), 0. A. SHEPARD.

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