US564934A - Centrifugal pump - Google Patents

Description

(No Model.) 2 Sheets-Sheet: 1. O. MGINTYRE. GENTRIEUG AL PUMP.

No. 564,934. Patented July 28, 1896.

wi/imaooeo (No Model.) 2 Sheets-Sheet 2.

G. MQINTYRB. GENTRIPUGAL PUMP.

No. 564,934. Patented July 28, 1896.

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UNITED STATES PATENT FFIGE.

CHARLES MOINTYRE, OF GREAT FALLS, MONTANA, ASSIGNOR, BY MESNE ASSIGNMEJTS, TO ELIZABETH N. MOINTYRE, OF POPLAR, MONTANA.

CENTRIFUGAL PUM P.

SPECIFICATION forming part of Letters Patent No. 564,934, dated July 28, 1896.

Application filed March 18, 1893. Serial No. 466,688. (No model.)

To all whom it may concern:

Be it known that I, CHARLES MCINTYRE, of Great Falls, in the county of Cascade and State of Montana, have invented certain new and useful Improvements in Centrifugal Pumps; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention contemplates certain new and useful improvements in centrifugal pumps; and it has for its object the production of a new and improved pump of this nature, designed to be located above or outside of a well, or at any suitable distance from the source of supply, and by means of which water or any other liquid can be readily and easily raised and stored for subsequent use and power attained from the discharge thereof, the fullstriking force or power of the discharged liquid being utilized, whereby the primary power for operating the pump may be decreased or the power of the pump itself may be materially increased.

The invention comprises a rotary wheel having hollow radiating arms and a series of bucket-s encircling said wheel and mounted on a second wheel,which operatively engages said rotary wheel at its hub or center, whereby the force or power of the water discharged from said rotary wheel is utilized to assist indriving the latter.

The invention also comprises the details of construction, combination, and arrangement of parts, substantially as hereinafter fully set forth, and particularly pointed out in the claims.

In the accompanying drawin gs,Figure l is a plan view of my improved centrifugal pump, the top of the inclosing cylinder being removed. Fig. 2 is a vertical sectional view on the line a: a Fig. 1. Fig. 3 is a vertical longitudinal sectional view of the pump with certain elements omitted. Fig. 4 is a detail plan view of the second wheel having but one 7 of its buckets, the latter being partly broken awav.

Referring to the drawings, A designates an air-tight cylinder, a a hole or opening for suction-pipe a, and a a hole or opening from which leads discharge-pipe (L3, which can con vey the water under pressure to anysuitable point for any desired purpose.

B is a bed-plate, shown attached to the bottom of cylinder A, and having a central cylindrical extension I), in the lower curved tubular portion of which opens the suction-pipe a. The upper end of extension I) is hellmouthed and has a beveled rack 17', extending therearound. The suction-pipe a is preferably extended horizontally to a point beyond the air-cylinder, and into it opens a stand-pipe 11 leading from a priming-tank Z2 A valve b on the bottom of said tank can be raised by a rod 19 when it is desired to prime the pump. ater placed in said tank when the valve is closed will seal the same. In the submerged end of pipe a is an inwardlyopening valve 1), and immediately above it is a second small valve 1) under the control of a rod b which is extended up within reach of an operator.

G is a rotary wheel composed of four hollow arms cl, radiating from a common center at, as shown in Fig. 1, said arms at their inner ends being connected by a web-casting (1 through which is passed a set-screw d for engaging a perpendicular shaft D, which latter supports wheel 0. From the under side of the latter at its hub or center extends a cylindrical bearing-sleeve cl, which fits snug within the truly cylindrical portion of exten sion 1) and is surrounded by a gasket d to prevent leakage and to retain the water-seal in the bell-mouth. From this sleeve (1 adjacent to the under side of wheel 0, projects a beveled rack 1), corresponding to the stationaryloeveled rack b. The shaft D is passed through a hollow bearing d extending upwardly into extension Z) from bed-plate B, and at its outer lower end said shaft rests in a bearing 0. A pulley e is fast on said shaft D above said bearing 6, and to it is designed to be applied a driving-belt. (Not shown.) A collar 6 is keyed to shaft D, and between it and the upper end of bearing (1 are washers or ball-bearings e A sleeve of Babbitt metal is preferably placed within bearing (1 To the lower end of the latter a packingwasher e is attached, and a similar washer e is secured immediately thereunder to a plate E, attached to under side of cylinder A, a collar 6 being keyed on shaft D adjacent to said plate.

The hollow arms d of wheel 0 are slightly inclined, and at their outer raised ends they are curved and provided each with a surrounding flange f, to which is bolted an angular nozzle f. 'Within these angular ends are valves F, which normally close said ends, said valves being hinged to and bearing on the inner flanged portions of said arms. These nozzles are provided, so as to direct the flow or discharge of water.

G is a second wheel having a central hub or ring 9, supported by four inclined radiating arms 9. The hub or ringg has an inner reduced portion or tenon g fitting sung in a corresponding groove 9 in bearing-sleeve g and each two of said arms are connected together by a curved brace 9 Vithin corresponding openings in said braces and central thickened portions of ring g are placed studs or shafts g which are held by set-screws g On these studs or shafts are beveled gearwheels or cones H, which intermesh with the corresponding beveled racks b and d. This wheel G carries a series of buckets h, bolted on short arms h, projecting from said wheel, said buckets being diagonally arranged with their open ends on the same relative planes to each other. The buckets are thus arranged so that they will receive on a direct line the water from the ends of the hollow arms of wheel C, the water striking against them in such manner as to spend its full force and then fall into the cylinder. The whole power thus obtained is transmitted to the wheel 0 through the intermeshing of the gear-wheels with the bearing-sleeve d. Thus the power of the wheel 0 is greatly increased or the main driving power may be correspondingly decreased and the uniform speed of said wheel will be still maintained.

In operation the suction-pipe and hollow arms are first filled with water through the prim er,and this being accomplished the lower small valve is opened, thus holding the water, the air-pressure on the valves F in the ends of the radiating arms holding the same closed. The wheel 0 is then revolved at sufficient velocity to give the water or liquid contained in its hollow arms acentrifu galforce greater than the atmospheric pressure against said valves F, creating a continuous flow of the liquid. As the latter is thus discharged by the centrifugal force a partial vacuum is created in the center of the pump, and by reason of this and the pressure of the air on the surface of the liquid to be raised the latter is forced up into the rapidly-revolvin g arms of the hollow wheel and carried by the centrifugal force to the outer ends of the radial arms, and a continuous flow is thereby created. The liquid has two motions in the arms, one in the direction the wheel is revolved and the other in the line of centrifugal force or at right angles to the former in a radius or direct line through the center and the body.

In Fig. 3 I have shown my improved pump in a modified form, the water receiving and air cylinder, as well as the second wheel carrying the buckets, being dispensed with. In this form the bell-mouth of the cylindrical extension b is designed to contain a waterseal. Power is applied to the wheel from above. The perpendicular shaft D is held stationary in tubular bearing (1 by a setscrew '6, and its upper end is inclosed by a cap I, bolted to the flanged edge of a central tubular extension 1." of wheel 0. Sleeves of Babbitt metal, surround said shaft within said cap and extension. The driving-pulley i is fast on cap I. cated between the upper end of shaft D and the cap. The suction-pipe is shown bolted to the flanged edge of the hollow tubular portion of the bed-plate, and the primer is connected to this suction-pipe. The latter is of any desired length and may be extended into a creek orriver, from which the water can be drawn. This form of pump is employed for irrigating purposes or for collecting water in a large trough (not shown) surrounding the same.

The advantages of my invention are apparent to those skilled in the art. I have produced a simple and highly efficient centrifugal pump capable of being operated from above or below, and by means of the form of pump first above described a great pumping capac' ity is attained and a component of the force or power of the discharged water is utilized to assist in effecting the continuous raising of water, and hence the primary power can be greatly decreased. The power of the water under air-pressure can be still further utilized for other purposes. A pump thus constructed is strong and durable and not liable to readily get out of order.

I claim as my invention- 1. The herein-described centrifugal pump, comprising a bed-plate, a central tubular bearing, a cylindrical extension surrounding said tubular bearing and having a water-seal at its outer end, the rotary wheel having hollow radiating arms and a depending central cylindrical bearing-sleeve extended down into said extension beyond said water-seal. and the vertical shaft located in said bearing and supporting said wheel at its upper end. substantially as set forth.

2. The herein-described centrifugal pump, comprising a bed-plate having a cylindrical extension provided with a bellmouth, the suction-pipe opening into said extension, the rotary wheel having hollow radiating arms. the central cylindrical bearing-sleeve extending from said wheel into said extension, and the gasket surrounding said bearing-sleeve. substantially as set forth.

3. The herein-described centrifugal pump, comprising a bed-plate having a central ver- Ball-bearings i are loi TOO seaese 3 tical cylindrical extension and a tubular portion, the suction-pipe opening into said tubular portion, the stationary tubular bearing formed integral with said bed-plate and located within said cylindrical extension, the horizontal rotary wheel having hollow radiating arms, the central cylindrical bearingsleeve depending from said wheel and fitted in said extension, and the perpendicular shaft for said wheel located in said tubular bearing, the pulley and the ball-bearings, substantially as set forth.

l. The herein-described centrifugal pump, comprising the bed-plate having a vertical cylindrical extension and a tubular portion both formed integral therewith, the suctionpipe opening into said tubular portion, the stationary tubular bearing also formed integral with said bed-plate and located within said cylindrical extension, the horizontal rotary wheel having hollow radiating arms, the perpendicular shaft connected to the hub or center of said wheel and extended through said tubular bearing, the pulley on said shaft, the lower bearing for the latter, the inner washers, the collar fast on said shaft, and the ball-bearings between said collar and tubular bearings, substantially as set forth.

5. The combination with the bed-plate having a cylindrical extension and a beveled rack, of the rotary wheel having hollow radiating arms, a depending cylindrical bearing-sleeve fitting in said extension and provided with a beveled rack and a continuous groove, the second wheel having its hub fitting in said groove beveled gear-Wheel carried by said second wheel and engaging said racks, and the series of buckets mounted on the outer periphery of said latter wheel, substantially as set forth.

6. The combination with the bed-plate having a cylindrical extension and a beveled rack, of a rotary wheel having hollow radiating arms, a depending cylindrical bearingsleeve fitting in said extension and provided with a beveled rack and a continuous groove, a second wheel having an inner ring and radiating arms, said ring fitting in said groove, the curved braces connecting said arms, the studs supported by said braces and ring, the beveled gear-wheels on said studs, and the series of buckets carried by said second wheel, substantially as set forth.

7. The combination with the bed-plate having a cylindrical extension provided with a beveled rack and a tubular opening, the suction-pipe connected to said opening, the stationary bearing extending up in said cylindrical extension, the rotary wheel having a hollow center and hollow radiating arms, valves in the outer ends of the latter, a central cylindrical bearing sleeve depending from said wheel fitting in said extension and provided with a beveled rack, the shaft located in said stationary bearing and supporting said rotary wheel, the pulley, the second wheel having a ring encircling said cylindrical bearing-sleeve, beveled gear-wheels engaging said beveled racks, and the buckets carried by said second wheel on a line with the outer ends of said radiating arms, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

CHARLES MCINTYRE.

WVitnesses OTTO BARTELS, EMMETT L. HAWKINS.

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