US99548A - Improvement in turbine water-wheels - Google Patents

Description

@anni @ibitza idntd tatw 'JAMES J. EAULENER; or MCMINNVILLE, TENNESSEE.

Letters Patent N 99,548, dated Feb/mary s, 1870.

The Schedule -referred to in these Letters Patent and making part of the same. t

To whom it ymay concern: i

Beit known that I, J AMES J. FAULKNER, 0f Mc- Minnville, Warren county, Tennessee, have invented anew and useful Improvement in Turbine Wheels; and I hereby declare the following to be a full, clear, and exact description thereof, reference being had to the accompanying drawings, making part of this speciication.

Myinvention relates to a parallel-dow turbine,`

which has two wheels, the one immediately beneath the other, andl receiving the water therefrom, and turning in an opposite direction thereto.

The water, in passing through the upper wheel, has avcircular lnotion imparted to it, which motion is utilized in turning the lower wheel.

Figure 1 is a side elevation (partially in section) of my improved turbine.v

Figure 2 isa plan, showing the arrangement of gate and water-ways.

A is a peustock, to whose frame-work is attached the case B of the turbine, by means of an annular' angle-iron, C, and bolts D.

Spanning the bottom of the case B, is the bridge` piece E, which supports the step F, upon which rests the lower end of the vertical shaft G.

The lower wheel or turbine H is attached to the shaft G, the said shaft extending upward, and being jourualed at fi to the' be-.nu l'.

rlhe shaft G carries a bevel cog-wheel, J, which engages the top of a similar pinion, l, upon the shaft- L, by which power i-s communicated to any desired machinery, by a belt upon pulley M, or otherwise.

The upper turbine wheel N is attached to a 'tubular shaft, o, concentric with the shaft G.

This shaft o has a lower journal-bearing in boxes 'r, secured to cross-beam, It, of the penstock-frame.

The upper end of the tubular shaft o carries a bevel-cog wheel, S, engaging with the lower side of pinion K.

The water-ways or chutes T descend obliquely downward, in such direction as to give a somewhat tangential impulse to the water iu its descent, and cause'it to impinge nearly at right angles` upon the face of the upper part ofthe buckets U of the upper wheels N, and the water owing down the said buckets has an opposite circular Amotion imparted to it, and strikes the bucketsX of the lower wheel in a manuel' similar to that in which it impinges on the buckets of lthe upper wheel, thus utilizing the circular motion imparted to the water by the'upper wheel.

The buckets do not project in lines radial to the wheel, butimlines tangential to a circle within the circumference of the wheel, inclin'ng somewhat backward from a radialdirection, so as to direct the water rather inward Vthan outward, which latter would be the case if the'buckets were radial in direction.

The gate V, by whose movement the ow of water to the wheel is governed, consists of au annular plate, which lies upon the top plate of the case, and has apertures W, coincidimg with the chutes or water-ways T in the top of the case, so that by the partial revolution ,of the gate, vthe chutes may be wholly opened or closed, or may be partially opened, as desired. 1 rIhe gate is movedA by means o f a cog-rack, c, with which meshes-the cog-wheel .y upon a shaft, Y, whose upper end carries a hand-wheel, c by which the said shaft is turned. l

The gate is held in position by cleats or studs, one of which, c', acts as a stop to the movement of the gate, by means of shoulders at the' opposite ends of f a segmental recess, in theinterior circumference of It will be seen that the shaft G rests upon the step-bolt F, and may be vertically adjusted thereby, but the tubular shaft O is supported irrespective of the step, and is not intended to come in Contact with the shaft G in any part, but is supported, by its upper end, either upon the hub of the wheel S and box v', or upon a collar of the shaft beneath the said wheel, which collar rests upon the box 1'.

The tubular shaft may, if preferred, be supported by a collar upon it, which would rest-upon the raised part b of the top plate of the case- B, the said raised partb forming the lower journal-bearing ofthe'shaft 0.

The step may, if preferred, be supported on a spideu in lieu of the single straight bridge-piece described.

The first water-deectors or chutes are necessarily fixed, but the second deflection of the. water is accomplished whilepassing through the upper wheel, and thus a gain is made of the power which would otherwise be lost in friction of the wat-er against fixed deiecting-plates or chutes.

Still another supplementary and reversely-actiug turbine may be introduced below the turbine H, the shaft of the turbine H then being, like that of N, in the form of a sleeve or tube.

I claim herein as new, and of my invention- The arrangement (by concentric shafts, geared above the water-level in the manner set forth) of oppositelyrevolving turbines, one below and receiving water from the other, the said wheels having similar but reterselydirected buckets, whichextend outwardly, in lines taugential to a circle within the circumference of the wheel, and inclined somewhat backward toward their outer edge, so as to counteract the centrifugal tendency of the water, as described, in combination with Witnesses:

Asa FAULKNER, GEO. H. KNIGHT.

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