USRE4539E - Improvement in water-wheels - Google Patents
Improvement in water-wheels Download PDFInfo
- Publication number
- USRE4539E USRE4539E US RE4539 E USRE4539 E US RE4539E
- Authority
- US
- United States
- Prior art keywords
- water
- wheel
- buckets
- bucket
- head
- Prior art date
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 210000003128 Head Anatomy 0.000 description 6
- 230000000875 corresponding Effects 0.000 description 4
- 210000003414 Extremities Anatomy 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000000266 injurious Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000000630 rising Effects 0.000 description 2
Images
Definitions
- the bucket-head e of my improved water-wheel and the buckets d d descending from said head are inclosed by a scroll-shaped water-way, A, as shown in the accompanying drawing.
- the proper shape and position are given to the said buckets d d by the following method, to wit: Draw a circle, I), of a diameter corresponding with that of the buckethead of the water-wheel to be constructed; then from the same initial point draw an inner concentric circle, 0; then place the pivot-leg of the com passes upon the said outer circle I), and so adjust themarkin g-le g of the instrument that it will form a curve tangential to the said inner circle 0, which curve, when extended from the inner circle 0 to the outer circle I), will give the desired and the best possible shape for the convex surface of the respective buckets d d,and also the best position that the said convex surface of each bucket can occupy beneath the bucket-head e.
- the best water-wheel is produced when the diameter of the inner guidin gcircle 0 is from one-third to one-half. that of the outer guiding-circle b.
- the buckets (Z d may be cast in one piece with the bucket-head c.
- the under surface of the bucket-head, or that portion thereof from which the buckets descend, curves upward and outward from the central aperture therein and to such a degree as to cause the water to act in a condensed and continuous body upon the convex surface of the respective buckets and to pass so rapidly through the wheel as to leave the same the instant that its propelling force ceases to act upon the said series of buckets.
- the said curvature of the bucket-head e also causes the passage of the water through the waterwheel to exert a lifting action thereupon, which causes a considerable diminution of the friction upon the lower bearing of the wheel and a corresponding addition to the power of the wheel.
- the lower edges of the series of buckets d d are connected with each other by a rim, f, whose inner edge is of the beveled and scallop-shape represented in the accompanying drawing.
- the said rim f extends inward in close contact with the convex surface of each bucket a distance equal to about three-sev enths of the length of said surface, and from that point it curves outward and downward to a narrow connection between the said rim and the outer extremity of the concave surface of the next bucket in succession, and so onward around the wheel.
- An airtight and centrally-elevated cover, 1) is combined with the upper edge of curb of my improved water-wheel in such a manner as to form an airtight joint between the two.
- An air-tight packin g-box, E which is combined with the aperture in the apex of the curb-cover 1) forms the upper bearing of the water-wheel shaft.
- the air-tight chamber within the curb and the curb-cover of my improved water-wheel prevent the rising of any water from below into the same, and consequently the said water-wheel can be operated without any material loss of power when immersed in back-water.
- my improved water-wheel When used in cold climates my improved water-wheel can be protected from the injurious effects of the frost by immersing it in standing water.
- the curb-cover D is sufliciently elevated to form a firm and reliablc upper bearing to the water-wheel shaft, and consequently the said shaft can be connected directly to the machinery that is to be operated thereby without the aid of auxiliary sh aftin g.
- the gate-box B which is combined with the mouth of the waterway A by means of screwbolts or other suitable devices, is of sufficient height to enable the gate C to be operated within said box.
- the said gate may be operated by means of the sh ank g, which rises therefrom and passes through a packed aperture in the top of the gate-box, substantially as shown in the accompanying drawing.
- Suitable flanges, lugs, or cars should be cast or formed on the outer edges of the gate-box B to enable the same to be directly connected with any water-supplying fiume, tube, or trunk.
Family
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