US103162A - Improvement in water-wheel - Google Patents

Description

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I WILLIAM T.QDUV ALL, or eEonenToWN, DISTRICT orv ooLUMBIA.

am Patent No. 103,162, aan May 17, 1870.

I IMPROVEMENT IN WATER-WHEEL.

The Schedule re'fen'fecl to in these Letters Patent and making part of thesame.

To all whom-it may concern:

`Be it known that 1 WILLIAM T. DUVALL, of Georgetown, in the county of Washington' and District of Oolumbliiarhave invented a new and useful `Ihnnnovemen't in Waiter-Wheels, which may be called a battery water-pressure wheel; and I do hereby .declare thatthe following is a full, clear-,and exact `descriptionthereof',` reference being had to the accompanying drawing forming part' of this specifica-v tion, and in which- `wheel audits housing.

Figure2 isa horizontalsection, taken onlinez z onfig.1. I

My invention relates to that class of 'wheels in Figure 1 represents a .central vertical section of my which the water is supplied `under pressure throughclose'tubularconnections from a'qneducts, or similar 'g It consists First, in a combinatonwith the reaction or centri.

fugal `wheelof Barker or Whitlaw, Aof a series of stationaryaahu'tmentsfor the discharging water to impinge upon-, and thereby increase its reactive effectv when under pressure.

Secondly, in` such an arrangement of the "wheel within its housing as that the pressure applied fromv t below shall coiplnterbalance, or nearly so, the weight of the wheel, its shaft, and connections or gearing thereon.

if `"lhirdly, in the arrangement in relation toa pressure-wheel, of a regulating-valve or gate at the eduction-aperture, whereby all available pressure. is ob-l tained, and water cconomized. A

`Fourthlygn the arrangement of a hollow neck on the under side of the whcehfor forming connection t with't-he induction-pipe by-hydraulic packing, as hereinafter more particularly described.

`Referring to the drawingy A represents the reactionwheel, having two or more curvedwater-ways, a, which should be arranged todis charge an equal quantity. of water on opposite `sides, of the axis, to avoid lateral strain.

B is anannular rim, rmly'securedhi the housing 0 around the periphery of the wheel A, and'wh'ich is formed, at its'l `inner under side or edge, concave, in

which concave is arranged aseries of platesV lor divisions, c, which extend radially nearly in contact with the periphery ofthe wheel A, and downward about to the level of its under side. t -The housing G may be constructed in any convenient numberof parts," to facilitate the tting and intraduction ofthe working parts therein, and is provided with an induction-passage, D,in which is a cross-bar, d, with a step, to receivethe toerof the shaft b of the wheel A.

The upper end of this passage D is suitably fitted to form a water-packing around the neck fof the wheel, and to its lower end is attached the water-main `or supply-pipe.

.g is the egress-passage, which is tted with any suitable valve or gate, h, by which the consumption of water and consequent velocity and power otthe wheel may be regulated either by hand, or automatically, by a' governor. The housing G isalsc inclosed or covered in at top, and lnay be provided with astuio` ing-box around the shaft b, if desired.

The operation of' the wheel will then be as follows: The water being turned on at the induction-pas-` sage I), 'fillsthe wheel and the discharge-chamber be' ,y

neath it. The gate h is then to be withdrawn gradually until the required velocity ofthe wheel is attained, the water iiowing through the curved ways a, under pressure, discharges from the periphery ot' the wheel A against the abntments, which increase its reaction,

whilst the curvedportion of the rim between these abutments aids in the same bydefiecting. the waterfrom its direct course int-dthe discharge-chamber, and thence it escapes through the Vegress-opening g.

It will thus appear that, by the introduction et' the 'water under pressure to the under side of the wheel,

the weight ot" the latter is counterhalanced, and the friction of' 'its bearings is much reduced; also, that by the arrangement and combination of the abutlnents with'the wheel, the greatest amount of reaction is olle. tained and, by regulating the.A discharge-aperture insteadof the induction, thefull force of all .the water used is developed, less, only, that consumed in friction.

Having thus described inyinvention,`

,Whatl' claim as new, and desire to secure by Letters Patent, 'is- 1. 'The abutment-rim B, in. combination with theV reaction wheel A, all constructed and operating suhstantia'lly as shown Iand described.

2. The induction of the water on the under sident the wheel, in such manner that the weight of the lattially as shown and described.

` 3. The combination of the neck f, arranged on the under' 'side of the wheel, with the upward extension of the supply-pipe D, provided with hydraulic packing, substantially as described. I

WM. T. DUVALL.

f ter is sustained by the pressure of the water, substau. I

Witnesses:

SYDNEY E. SMITH, y W. MORRIS SMITH.

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