US1206385A - Pump. - Google Patents

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Publication number
US1206385A
US1206385A US80434213A US1913804342A US1206385A US 1206385 A US1206385 A US 1206385A US 80434213 A US80434213 A US 80434213A US 1913804342 A US1913804342 A US 1913804342A US 1206385 A US1206385 A US 1206385A
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Prior art keywords
pump
water
casing
valve
pipe
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US80434213A
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John B Sperry
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AMERICAN WELL WORKS
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AMERICAN WELL WORKS
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Priority to US80434213A priority Critical patent/US1206385A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04DNON-POSITIVE-DISPLACEMENT PUMPS
    • F04D9/00Priming; Preventing vapour lock
    • F04D9/02Self-priming pumps

Description

J. B. 'SPERRY.

PUMP. APPLICATION FILED DEC. 3. l9|3- Patented Nov. 28, 1916.

It ll JOHN B. SPERBIY, OF AURORA, ILLINOIS, ASSIGNOR TO THE AMERICAN WELL WORKN, O AURORA, ILLINOIS, A. CORPORATION OF ILLINOIS.

PUMP.

Specification of Letters Patent.

Patented Nov. eaters.

. Application filed December 3, 1913. Serial No. 804,342.

To all whom it may concern:

Be it known that I, JOHN B. SPERRY, a citizen of the United States, residing at Aurora, in the county of Kane and State of Illinois, have invented certain new and useful Improvements in Pumps, of which the following is a specification, reference being had to the accompanying drawings.

This invention relates to pumps and has for one of its objects the provision of means by which a pump may be automatically primed whenever under any circumstances it loses its water. As will be readily understood, whenever for any reason the water necessary for the proper operation of the pump is lost, the space ordinarily occupied t ll by the water becomes filled with air. When the pump is primed thereafter, it is often the case that the priming water cannot force from the pump all of such air, making it difiicult to start the pump properly in operation, the air still remaining in the pump causing the pump toagain lose its water.

It is another object of this invention to provide automatically-acting means for removing the airfrom a pump when the pump is primed or whenever at any time a quantity of air is admitted into the pump during its operation. r

Itis another object of this invention to improve pumps in sundry details hereinafter pointed out. 2

The means by which I have accomplished these objects are illustrated in the drawing and are hereinafter specifically described.

That which I believe to be new is set forth in the claims.

In the drawings-Figure 1 is a side view,

partly in section, of a pump embodying-my improvements; and Fig; 2 is a cross-sectional View of a modified form of regulating valve.

Referring to Fig. 1, 10 indicates the run ner casing of a centrifugal pump of any approved type mounted upon a base 11 supported in any suitable manner. 12 indicates a suction-pipe extending from the runner casing 10 to or below the lowest level of the water in the well, being provided at its lower end with an upwardly opening valve 13 of any approvedtype. 14 indicates the discharge outlet of the pump provided with an upwardly opening valve 15 ,of any approved type and connected at its upper end to the discharge pipe 16. Comin now to suitable material mounted on the lower face of the diaphragm 18 adapted to be brought down to close the openings Ell-22 in the wall of the regulating valve 17 23 indicates a pipe connecting the opening 22 with the suction pipe 12, with a valve 24 interposed therein. 25 indicates a pipe connecting the opening 21 with the discharge outlet 14 above the valve 15 therein, said pipe 25 having interposed therein a valve 26. 27 indicates a pipe connecting the valve-casing 17 above the diaphragm 18 with the outlet 1 1 below the valve 15, the end of the pipe 27 extending through the wall of the outlet 14 and being turned therein toward the pump.

With the pump being driven from any suitable source of power, the water is drawn into the suction pipe 12, the valve 13 opening to permit the water to enter. The water is forced through the outlet 14, the valve 15 opening upward to permit the water to pass. The water impinging against the open end of the pipe 27 in the outlet 14, by reason of its velocity creates a pressure in the pipe 27 in excess of the pressure in the outlet 14:. Inasmuch as the pressure in the pipe 27 is transmitted to the casing 17 above the diaphragm 18 and the pressure in the outlet 14: to the casing 17 below the diaphragm, the preponderance of pressure 'above the dia phragm, brings the part 20 to its seat, closing' the ports 21-22.

With the pump operating as above described,-with the openings 2l..22 closed by the plate 20, the water is forced through the discharge outlet 14 and the discharge pipe 16 substantially as if the regulating valve 17 and its connections were not in use. Whenever, under any circumstances, the pump is caused to lose its water,.the valve 13 immediately closes, preventing the'emptying of the suction pipe 12. The upward pressure of the water through the discharge outlet 14: immediately ceases, thus removing the pressure upon the upper side til Ittll the receptacle completely full,

such complete filling with 'vater may be 25 and the opening 21 into the chamber of the regulating valve, thence through the operation of the pump again becomes normal, the valves 13 and 15 being caused to open upward and the regulating valve 17 being caused to close the openings 2122 as above described. The valves 24 and 26 are provided for closing the pipes 2325 if for any reason it is desired to remove the regulating-valve for adjustment or repair. In Fig. 2 which shows a modified form of regulating valve, correspondingparts are indicated by the same reference numerals but with the addition of an exponent a. In this construction, 17 indicates a cap or dome formed in the upper wall of the casing 17 17 indicates a sleeve mounted on the plate 19 adapted to slide up and down in said cap, and 17 indicates a coiled spring mounted in said sleeve and cap tending to hold the plate 20 in its lowered operative position. The spring 17 of such a strength as to render it easily overcome by the back pressure of the water in the pipe 16 upon the discontinuance of effective "pumping whereby the plate 20 is sure to be lifted against the action of the spring for priming purposes. At the same time, the spring can be made strong enough to cause a very considerable preponderance of force for holding the plate 20 in. operative closing position during the effective pumping operation. Coming now to the means for automatically removing the air from the pump, 28 indicates a receptacle connected by a pipe 29 with the upper part of the runner casing 10. 30' indicates a water gage of any suitable type connected at the side of said receptacle. 31 indicates a bracket depending from the cover plate of the receptacle, carrying near its lower end a block 32 provided with a vertical opening therethrough, the upper end of which opening communicates with the atmosphere through a tube 33. 3+1 indicates a link or lever pivotally connected at one end to thelower end of the bracket 31. 35 indicates a valve stem pivotally mounted at its lower end upon the link 34 imposition in the opening through the block 32, the upper end of said stem having a seat at the u per end of the opening through the block 32. 36 indicates a float of any suitable type mounted on the lower end of the link 34.

With the pump in effective operation, water is forced into the receptacle 28 fillin except as Upon the automatic priming of the pump as ust described, the

isdesigned to be prevented by the presence of air in the receptacle. The float 30 tends to rise to the surface of the water, exerting an upward pressure through the link 3-l. upon the valve stem 35, holding such valve stem to its seat and closing the pipe 33. Whenever during the operation of the pump air is admitted or forced into the runner casing 10, such air has a tendency to rise to the uppermost point of the casing and to escape from the casing through the pipe 29 into the chamber 28, displacing water therefrom. As the level of the water falls in the receptacle 28 in this way, the support for the float 30 is removed and the valve stem 35 is drawn from its seat by the weight of the float. against the pressure in the receptacle 23. Upon the opening of the valve in this way. a portion of the air escapes from the receptacle 2S, permitting a new supply of Water to enter through the pipe 29, thus raising the level of the water and again bringing the valve stem 35 against its scat. As will be readily understood, the action of the air-removing apparatus is entirely automatic, opening and closing just as often as is necessary for the escape of the air and preventing the loss of any water through the valve.

By the use ofmy air-removing means automatically operative during the pumping operation, the runner casing is normally prevented from acquiring such an accumulation of air therein as will cause the pump to lose its water and make rime the pump. At the same time, in the orm here shown, if the pump does happen to lose its water, the use of my air-removing means makes it possible to prime the pump readilyby the automatic priming means shown or in any other suitable manner, the valve remaining open during the priming operation for the escape of all the extraneous air, thus assisting very materially in the priming operation.

While I have shown the by-pass comprising the regulating valve and the pipe 23 as being connected between the outlet side of the pump and the inlet side thereof, it will be understood that I do not restrict myself to that particular construction except as hereinafter specifically claimed, the essential feature of the construction being that the regulating valve shall operate to permit water to pass to the pump from the head of water pumped when the-effective pumping operation ceases.

It will also be understood that I do not restrict my invention to the arrangement shown, in which the regulating valve is connected to the head of water pumped rather thanto some other "uitable source of water under pressure, except as hereinafter specifically claimed, although- I prefer to employ the construction illustrated.

it necessary to While have described my improvements in connection with a water pump, it will be understood that I do not restrict my invention to use for pumping water alone, but that it is adapted for use with other liquids, the operation being the same as that above described. The claims are, therefore, to be construed accordingly.

It will also be understood that theair-removing device is equally serviceable for the removal of any gas without being restricted in any way to air alone.

'lVhat I claim as my invention, and desire to secure by Letters Patent is 1. The combination of a pump, a regulating valve comprising a casing, a diaphragm extending across said casing, two

- ports leading from said casing on one side of said diaphragm, and a plate mounted on said diaphragm adapted to close both of said ports, means connecting one of said ports w1th a head of water, means connecting the other of said ports with said pump, and means connecting said casing on the other side of said diaphragm with the discharge outlet of said pump whereby the pressure of the water pumped during the effective operation of the pump serves to.

hold said plate in position to keep said ports closed.

2. The combination of a pump, a regulating valve comprising a'casing, a diaphragm extending across said casing, two ports leading from said casing 011 one side of said diaphragm, and a plate mounted on said diaphragm adapted to close both of said ports, means connecting one of said ports with the head of water pumped, means connecting the other of said ports with the inlet Side of said pump, and means connecting the said casing'on the other side of the diaphragm with the discharge outlet of the pump whereby the pressure of the water pumped acting through the last-named connecting means during the effective operation of the pump serves to hold said plate in position to kee said two ports closed.

3. The comblnation of a pump, a regulating' valve comprising a casing, a diaphragm extending across said casing, two ports leading from said casing on one side of said diaphragm, and a plate ounted on said diaphragm adapted to close both of said ports, a check-valve preventing the return of water to the pump through the discharge outlet, means connecting one of the said two ports of the casing with thehead of waterfpumped above said check-valve, means connecting the other of said two ports with the inlet side of the pump, and a pipe communicating at one end with the casing on the side of the diaphragm opposite that on which said two ports are located and extending into the discharge outlet of the pump between the said check-valve and the pump, being provided with a port in the discharge outlet opening toward the pump whereby the pressure in the casing of the water pumped acting through the said pipe during the efiective operation of the pump serves to hold said plate in position to keep said two ports closed.

I JOHN B. SPERRY. Witnesses:

R. D. MAHAFFEY, E. l. Emcnsnn.

US80434213A 1913-12-03 1913-12-03 Pump. Expired - Lifetime US1206385A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934023A (en) * 1956-12-31 1960-04-26 Murray Corp Centrifugal pumps
US3078806A (en) * 1960-03-14 1963-02-26 Byron C Marlowe Pumping system
US3111778A (en) * 1961-01-06 1963-11-26 Byron C Fonnesbeck Hydraulic dredge production sustanining control
US3370604A (en) * 1964-12-16 1968-02-27 Hudson Eugineering Company Self-priming liquid pumping system and primer valve
US3977809A (en) * 1974-02-14 1976-08-31 A. Petit & Co. S.A.R.L. Controlled discharge pressure pump for pumping liquids
US4255079A (en) * 1979-08-06 1981-03-10 Penco Division Of Hudson Engineering Company Self-priming system for pumps
US4494560A (en) * 1982-12-09 1985-01-22 Hudson Engineering Company Self-priming system for liquid pumps

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2934023A (en) * 1956-12-31 1960-04-26 Murray Corp Centrifugal pumps
US3078806A (en) * 1960-03-14 1963-02-26 Byron C Marlowe Pumping system
US3111778A (en) * 1961-01-06 1963-11-26 Byron C Fonnesbeck Hydraulic dredge production sustanining control
US3370604A (en) * 1964-12-16 1968-02-27 Hudson Eugineering Company Self-priming liquid pumping system and primer valve
US3977809A (en) * 1974-02-14 1976-08-31 A. Petit & Co. S.A.R.L. Controlled discharge pressure pump for pumping liquids
US4255079A (en) * 1979-08-06 1981-03-10 Penco Division Of Hudson Engineering Company Self-priming system for pumps
US4494560A (en) * 1982-12-09 1985-01-22 Hudson Engineering Company Self-priming system for liquid pumps

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