US22773A - And forging- fluids - Google Patents

Description

M. ALDEN. RAISING AND PORGING FLUIDS.

N0. 2Z,773. Patented Feb. 1, 1859.

UNITE srarns rarnnr orrlaon MANOAH ALDEN, OF PHILADELPHIA, PENNSYLVANIA.

ROTARY EUIVLP.

Specification of Letters Patent No. 22,773, dated February 1, 1,859.

To all whom it may concern:

Be it known that I, MANOAH ALDEN, of the city of Philadelphia and State of Pennsylv'ania, have invented a new and useful Improvement in Rotary Pumps; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to. the accompanying draw ing and to the letters of reference marked thereon.

My invention relates to an improvement in that class of machinery, to which the term of rotary pumps has been applied, and in which a bucket wheel revolving within a I casing is used.

My improvement consists in a bucket wheel of the peculiar construction described hereafter in combination with a wheel race or chamber adapted to the form of the said bucket wheel and a spiral chamber, the whole of the parts being arranged in respect to each other as hereinafter fully set forth, in order that a steady and uniform supply of water may pass through the apparatus, without causing that excessive and detrimental friction, common to pumps of this class.

In order to enable others skilled in the art to make and use my invention, I will now proceed to describe its construction and operation.

On reference to the drawing, which forms a part of this specification; Figure 1, is an exterior view of my apparatus for raising and forcing fluids. Fig. 2, a view, with one of the sides which form the casing removed. Fig. 3, a transverse, sectional elevation of the casing, and edge view of the rotating bucket wheel. Fig. 4, a perspective view, showing the peculiar construction of the bucket wheel.

Similar letters refer to similar parts throughout the several views.

The exterior casing of the apparatus consists of the two side plates A and A, firmly attached to each other by bolts, passing through the flanches on the edges of the plates at suitable intervals, a packing of gum intervening between these flanches, so that the joint shall be perfectly watertight. The plates are so constructed, that, when thus attached together, they form two chambers communicating with each other. One cham ber, which is circular with concave sides for the reception of the bucket wheel B, may be termed the wheel race. The other chamber D: forms a spiral channel around the first, commencing at the pointat, and increasing gradually in size from-that point to its termination at the opening y, to which the force pipe is connected.

The bucket wheel 13 consists of a plain disk, secured to a shaft O, and to each side of this disk are secured any convenient number of vanes 6, those on one side coinciding with those on the opposite side. It will he observed, or reference to Fig. 4, that the ends of that portion of the opposite vanes, which project beyond the disk, are connected together, that the vanes are curved, from the point where they terminate near the center. of the wheel tov their extreme ends, and that each vane is beveled or inclined out ward from the face of the disk in the direc tion of the arrows. Each pair of opposite, coinciding vanes therefore, forms a curved bucket, a transverse, sectional view of which will represent the letter V in form. The bucket wheel is so adapted to the chamber or race, in which it revolves, that the edges of the beveled vanes are in close contiguity to, but not in actual contact with, the concave sides, of the chamber, the ends of the buckets coinciding with the line which separates the wheel race from the spiral channel.

In the opposite sides A and A of the casing, and central with the wheel and its race are openings f, f, one opening communicating with a side pipe h, on the outside of one. of the plates, and the other communicating with the side pipe 71/, on the out side of the opposite plate of the casing. These pipes meet at one common opening 1', to which the suction pipe is attached. One end of the shaft 0 turns in a recess within the side pipe h, and the opposite end passes through and turns in an ordinary stuffing box m, at the top of the side pipe h. The curved vanes terminate near the edges of the openings f so as not to interfere with the free ingress of water through the said openings into the interior of the wheel race.

Operation: Thebucketwheel being caused to revolve in thedirection of the arrows, a partial vacuum will be formed within the casing, and the water will rush through the suction pipe, throughthe side pipes h and h, and through the openings f, f into the wheel race. The action of the wheel will force the water outward into the spiral channel D, along the course of which it will pass, making its exit at the opening y, or through a force pipe attached to this opening.

Revolving bucket wheels inelosed within a casing have been heretofore used in various forms, as a means of raising and forcing water. One of the serious objections against their general adoption has been the excessive friction, caused for the most part on account of the objectionable form and in appropriate arrangement of the buckets hitherto employed.

By my above described form and construction of bucket wheel, the water unimpeded at its entrance by any projecting portions of the vanes, is at once impelled to the spiral channel, and this without being broughtwith forcible impact against the sides of the casing, as the V formed buckets have a tendency to restrain the water from this outward or lateral course, in fact tending to keep it away from the sides. The curved buckets also tend to give a spiral motion to the water, as it is forced into the channel, so that, before it reaches the latter, it has actually obtained a motion similar to that, which it must subsequently pursue, prior to its exit at the opening y. Hence the advantage of the peculiar curved form t of bucket as formed of curved tapering 30 vanes and as combined with the wheel race or chamber adapted to the form of the buckets, and with the spiral channel.

I wish it to be distinctly understood that I lay no claim to the parts herein described separately or disconnected from each other, but

I claim and desire to secure by Letters Patent:

The wheel B with any convenient number of buckets formed by the opposite curve-d vanes c, said vanes being placed obliquely to the plane of rotation, and being of a tapering form so that the buckets may be broader near the center of the wheel than at the edge of the same, in combination with a wheel race or chamber adapted to the form of the buckets and with the spiral channel I) the whole of the parts being arranged in respect to each other and constructed as and for the purpose herein set forth.

In testimony whereof, I have signed my name to this specification before two subscribing witnesses.

MANOAH ALDEN.

Witnesses:

HENRY HOWSON, HENRY ODIOVNE.

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