US337766A - Hydraulic motor - Google Patents

Description

(No Model.)

N. E. HARRIS.

HYDRAULIC MOTOR. No. 337,766.k Patented Mar. 9, 1886.

N. paens. mwmmgnpm. vlamingen. n. c.

Eiwitten Orari-3s PATENT Ottica,

NELSON ELVIRUS HARRIS, OF ORANGE, MASSACHUSETTS.

HYDRAULIC MOTOR.

SPECFICATQN forming part of Letters Patent No. 337,766, dated ae-:roll 9,1886,

(No model.)

.To LZZ4 whom, z5 may concern:

Be it known that L NnLsoN ELvIRUs HAR- RIS, of Orange, in the county of Franklin, of the Commonwealth ot' Massachusetts, have invented a new and useful improvement in Hydraulic Motors, termed Turbinesg and I do hereby declare the "une to be described in the following specification, and represented in the accompanying drawings, of which- Figure l isa vertical and transverse section of a turbine containing inyinvention, the nature ot' which is defined in the claims hereinafter presented. Fig. 2 is a horizontal section taken through the water-wheel and its chutes. Fig. 3 is a horizontal section of the gate, showing its feet or water-guides.

In the said drawings, A denotes the case, within which the gate c is arranged concentric-ally. The said gate'has, as usual, machinery for raising and lowering it, such machinery being on and extending above and partly through the said case, as in various other turbines. The gate has projecting from it, at its lower edge, a series ot feet or water-guides, a', each ot' which extends between and from one to the other of two of the chutes e, that are disposed at equal distances apart around the water-wheel B, and inclined or curved, as usual, to direct the water to the buckets or iioats of such wheel. These chutes are supported by two rings, band c, with which they are cast in one piece. The upper ring, b', is curved, as shown, on its lower surface, to aid in directing the water between the chutes. Thelower ring is a ilat annulus, and is supported within a rabbet or recess, d', formed within a tlange, e', projecting horizontally from the draft-tube C.

rlhe water-wheel is composed not only of an inverted bellshaped body, b, and a series ot' wings or buckets, e2, extending, at equal distances apart, down from such body and within the draft-tube, but of a vertical ring. f, that surrounds and is fixed to the parts of the buckets which project within the drafttube, all being as represented, and the ring being extended to the top ot' the lower sustainingring of the chutes.

Encompassing the gate and fastened to its case A, and arranged therewith, as represented, s a dat ring, le', which has projecting from its outer periphery a tongue, Z', that extends into a corresliionding rabbet or groove, m', formed in the top of the upper of the two (finite-sustaining rings, such upper ring being fixed to the lower part ot' the caseA by a suitable number ot' screws, a.

Ytestingon the top ot' the ring k', and circumscribing the gate, is another dat ring, o', whose inner periphery is grooved to receive packing to tit to the gate. rlhis ring o is secured to the ring k by a series of screws, p. rlhe wheelshal't is shown at a. At its lower end the said shaft is provided with a tenon, f, that enters a chambered shoe or step, g, tixed to the shaft. This shoe or step is comic-ally recessed at its bottom, and there provided with a conical composition coucavo-convex bearing, g', to receive and bear on the top of a wooden pivot, h, extending upward from and into a metallic carrier, t'. This carrier is arranged vertically in the eye of a spider, 7c, secured to and extending down from and within the draft-tube. The carrier i rests on a plate, t, supported by nuts m,screwed on bolts Z,that go down through such plate and the spider. Through such plate t* and the axis ot' the pivot is a passage, p, for the water to pass to the crown ot' the pvot-bearing.

By means of the pivot-carrier, its supporting-plate, and the bolts and nuts for sustaining such plate the wooden pivot may bc adjusted or moved upward from time to time as the bearing-plate q' may become worn. The shaft a passes through a stufting-box, n, projecting upward from the case A, and bolted thereto. On the top of the said stung-box, and concentric with the shaft, is an annulus, o, of wood or other suitable material, and directly above and resting on the said annulus is a metallic collar, p, that encompasses the shaft, it being fixed thereto by one or more set-screws, fr, screwed into the annulus and against the shaft. From the above it will be seen that the said collar will revolve with and be revolved by the shaft, and by resting ou the annulus or bea-ring o will relieve the pivot and step ot' much, it' not all, of the weight of the wheel and shalt, and thereby prevent to a great degree, it' not entirely, wear ot' their bearing-surfaces. es the wooden bearing o on the inner collar may become worn, the col- ICO lar may be adjusted so as to hold the step in light contact with the pivot, such collar being in a position above the water where access to it and its wooden bearing can easily be had, as may be necessary from time to time. This construction the present device has in common with prior devices of the saine kind. By having the wheel or its ring and iioats or buckets extendeddown within'the draft-tube or arranged therein, as represented, the Water is enabled to escape downward from the wheel, and its buckets are sustained to great advantage.

lhe chamber c2 in the step g is provided with two series of holes, d and e2, leading out of it, as shown, the lower series being at the bottom and the upper series being at or near the top of the chamber. YVateig while being discharged from the wheel, flows through the upper holes into the chamber and out of it through thelower holes, and in so doing keeps the bearing-surfaces of the step and pivot from becoming heated by friction ot' one on the other. The lower edge ofthe feet or guides of the gate are curved, as shown, to direct the water to advantage between the chutes.

1n the above-described turbine I claiml. The combination of the water-wheel, its chutes and gate, its surrounding case, with the packing-ung 7c', having on its outer edge a tongue, the ring b', with its groove m', for the tongue of ring c, and the upperl grooved packing-ring. o', secu red to ring k. by screws. all su bstantall y as and io'r the purpose described.

2. The combination of the shaft a, the step g, having its chamber c2, with upper and lower holes, the saucer-shaped bearing-plate q', and wooden step-piece h.' having aWater-channel, p, supported in the vertically adjustable socket t', as and for the purpose described.

3. The combination ot' the water-wheel and

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