US2568842A - Water pump - Google Patents

Description

P 1951 J. M. BALDWIN 2,558,842?

WATER PUMP Filed Deb. 24, 1949 v Zhmentor ttorneg Patented Sept. 25, 1951 UNITED STATES PATENT OFFICE 2,568,842 j WATER PUMP v John M; Baldwin, Spokane, Wash. I I Application December 24, 1949, Serial'No. 134,880

This invention relates to a water pump and it is one'object of the invention to provide a pump which is particularly adapted for use in connection with an irrigation system and will not only serve to deliver water from a, source of supply but also serve to deliver a portion of the water to a reservoir mounted in an elevated position.

Another object of the invention is to provide a pump wherein water flowing from a, supply pipe is delivered into a water chamber of a container which is slidabl vertically in a tank or casing and serves to shift the container downwardly from a raised position, the tank having an outlet controlled by a valve which is moved to opened and closed positions by vertical movement of the container and the container serving to actuate operating means for a pump by means of which water is forced to a reservoir.

Another object of the invention is to provide a pump of this character wherein the container is moved to a raised position by floating action of air in an air chamber formed in the container 5 Claims. (01.10345) under a water chamber in the upper portion of the container.

Another object of the invention is to provide a pump structure wherein water in the upper water chamber is retained therein until weight of the water moves the container downwardly and a valve controlling flow of water through a downwardly outlet pipe of the water chamber is moved upwardly to an opened position by contact with the bottom of the container.

Another object of the invention is to provide a pump structure wherein the container carries an arm having a finger'dlsposed between side arms of a stem for a vertically movable valve by means of which flow of water from the water chamber of the tank or casing is controlled and thus cause this valve to be opened and closed as the container approaches limits of its Vertical movement during operation of the pump.

Another object of the invention is to provide the pump structure with a pump which is in communication with a sump formed at the inner end of a trough into which water flows from the tank, the pump including a vertically movable piston having its piston rod connected with operating mechanism actuated by vertical movement of the container.

Another object of the invention is to provide a pump structure which is simple in construction and will operate very efliciently and serve very efiectively to force water to the elevated reservoir while water is being delivered to an irrigation ditch or trough. 1 L

The invention is illustrated in the accompan ring drawings wherein:

Fig. 1 is a side view of the improved pump structure and the reservoir to which water is forced.

Fig. 2 is a sectional view upon an enlarged scale taken vertically through the pump structure.

Fig. 3 is a fragmentary-sectional view upon an enlarged scale taken along the line 3-3 of Figure 2. I

The tank or casing I of this improved pump I structure maybe formed of metal, or other suitable material, and is open at its top and circular in cross section. The bottom 2 of the tank is formed at its center with a depression or recess 3 which is counter sunk in the concrete base or foundation 4 upon which the tank rests. A trough 5 extends from the portion of the foundation upon which the tank rests and at its inner end the trough is formed'with a, sump 6. Above this sump the tank is formed with an outlet 1 which projects from a side of the tank at the bottom thereof so that water flowing through the outlet. neck may flow downwardly through the lower portion of a vertically disposed cylindrical'valve casing B and into the inner end of the trough to fill the sump and flow along the trough to an irrigation ditch or to any other point where the water is to be used. The valve casing 13 is held vertically by a brace 9 and in this casing is mounted a valve plunger ill which serves as a closure for the outlet spout I when in alowered position but is disposed out of blocking relation to the spout when in the raised or opened position shown in Figure 2. A stem or rod I l extends upwardly from the valve plunger and projects from the'upper end of the valve casing, its length being such that it projects above the upper end of the tank or casing I. The upper end of the stem or rod is bent to form an upper ear l2 which projects towards the casing or tank and in downwardly spaced relation to the upper ear the rod carries a lower ear [3 which also projects inwardly towards the tank in parallel spaced relation to the upper ear.

The valve plunger 10 mustbe yieldably held in a closed position or an opened position and in order to do so there has been provided a toggle structure l4 having a rod l5 which has at its inner end a cross head I6 pivotally mounted between brackets I! carried by and projecting horizontally from the tank. The rod is thus mounted for vertical swinging movement, and referring to Figure 3 it will be seen that theouter endportionor the rod slidably passes through a collar I8 carrying a laterally extending pin 19 which is loosely mounted through an opening 20 formed through the rod ll transversely thereof. A washer 2| and a nut 22 are mounted upon the protruding end of the pin l9 and serve to prevent the pin from slipping longitudinally out of the opening 20. A helical spring 23 which is coiled about the rod I has its inner end bearing against a disk 24 surrounding the inner end portion of the rod and the outer end of the spring bears against the collar and yieldably resists movement of the rod and the collar relative to each other. Therefore when the rod H is shifted vertically the rod l5 of the toggle must be forced past a dead center and the spring will then expand and cause the valve rod 1 l to be held in an adjusted position with the valve plunger in an opened or closed position according to which direction rod H is moved.

A container 25 which is also preferably formed of metal, and is circular in cross section, fits into the tank or casing I through the open upper end thereof and is slidable vertically in the tank. This container is divided by a horizontal partition 26 to form an upper water chamber 21 and a lower air chamber 28, the upper chamber being open at its top and the lower chamber being entirely closed so that air will be confined therein and this portion of the container serves as a float. A discharge pipe 29 is disposed vertically centrally of the container with its lower portion passing through the bottom 33 of the container and projecting downwardly therefrom, the upper portion of the pipe being enlarged to form a mouth 3| which resembles a funnel and mounted through an opening in the partition where it is secured by solder or welding 32 which firmly holds the outlet pipe to the partition and forms an air tight joint about the upper edge of the mouth 3|. Solder or welding may also be employed for forming an air tight joint about the portion of the pipe which passes downwardly through the bottom of the container and about the marginal edge of the partition. Spiders 33 are mounted in the discharge spout and through these spiders slidably passes the stem 34 of a float valve 35 which is an upwardly opening check valve and normally rests in a closed position upon a valve seat 36 formed about the lower end of the pipe 29. portion of the stem 34 or a separate rod, extends downwardly from the float valve 35 and when this rod contacts the bottom of the recess 3'the valve will be shifted upwardly and water in the chamber 21 allowed to flow through the pipe" 29 and into the lower portion of the tank-under the container. During downward movement of the container the finger 38 projecting outwardly from the lower end of a rod 39 carried by the container engages the finger l3 of thes'tem H and shifts the stem and the valve plunger l0 downwardly so that the outlet neck 1' is closed and water flowing from the pipe 29' will be confined in the casing or tank and gradually fill the tank with water. As the float-forming portion of the container causes the container" to move upwardly in the casing the finger 38 moves upwardly towards the upper end of the stem I I and when it engages the finger IZ'the stem will be drawn upwardly and the'valve I-O moved to its raised or opened position.' Water may then flow through the neck 1 and the lower portion of the' tubular valve casing-3 and the sump 6 will be filled with water and water flow; through the trough 5. As water flows from't-he" bottom"-o- A rod 31, which may be a 4 the tank or casing the container will move downwardly until the valve In is again closed and the valve 35 opened to allow escape of water from the water chamber 21.

A portion of the water flowing from the tank is to be delivered to a. reservoir 40 mounted in an elevated position upon a support 4|. In order to do so there has been provided a pump 42 having a vertically disposed cylinder 43 in which operates a piston 44 having an upwardly extending piston rod 45. This piston rod has its upper end pivotally connected with a rocker bar 46 tiltably mounted upon a pivot 41 and having its inner end-pivoted to a bail 48 projecting upwardly from the container and mounted in openings 49 at opposite sides of the container. Therefore as the container moves upwardly and downwardly the rocker bar will be tilted vertically and the piston reciprocated in the pump cylinder 43 so that water will be drawn from the sump 6 through the pipe 50 into the pump and then forced through the discharge pipe 5 l and into the reservoir during operation of the pump.

The float valve 35 operates on the same principle as the float valve in a toilet reservoir. When it is raised, the flow of water past the convex surface of the valve maintains it in raised position until said flow diminishes to the extent that the valve may again drop into the seat.

Having thus described the invention what is claimed is:

1. In a pump, a main casing having a bottom and formed with an outlet at a side of its bottom, a container slidable vertically in said casing through the upper end thereof, a partition in said container dividing the same into a lower air chamber and an upper water chamber adapted to be filled through its top, a conduit extending downwardly from the water chamber through the air chamber and the bottom of the container for delivering water into the casing under the container and formed with a valve seat at its lower end; avalve in said conduit normally resting upon said seatand having a stem extending verticallyin the conduit with its lower portion projecting downwardly in position for engaging the bottom of the casing and shifting the valve upwardly to an opened position as the container approaches the limit of its downward movement and thereby allowescape of water from the water chamber through the conduit and into the casing and out through'th'e' outlet of the casing, a sump into which water flows from said casing, a tubular valve casing disposed vertically over said 'sump and through which water flows from the outlet of the main casing, a piston valve in said valve casing slidable vertically from a lowered position closing the outlet of the main casing upopened and closed positions during vertical movement of the container involves influence of water in its upperc'hamber and air in its lower chamber, .a pump disposed'vertically and having an intakejpipeextending downwardly from its lower end "into said 'sumpand' a' discharge pipe leading from its upper end to'areservoir, a'pisto'n operating in said cylinder and having a rod projecting from the upper end of the cylinder, a bail carried by and extending upwardly from said container, and a rocker bar connected at its ends to the piston rod and the bail and actuating the pump during vertical movement of the container to draw water from the sump and force the water to the reservoir.

2. In a pump, a main casing open at its top and formed with an outlet at its bottom, a container slidable vertically in said casing through the open top thereof and formed with an upper water chamber open at its top for filling and with a closed air chamber under the water chamber, a discharge pipe extending downwardly from the water chamber into the lower portion of said casing and controlled by an upwardly opening valve adapted to be moved upwardly to an opened position by a downwardly extending rod having engagement with the bottom of the casing as the container approaches the limit of its downward movement in the casing, a valve casing with which the outlet of the casing communicates, a trough for receiving water from the valve casing, a valve movable vertically in said valve casing to opened and closed positions and having an upwardly extending stem provided with upper and lower abutments, an arm carried by said container and having a portion disposed between said abutments for opening and closing the valve during vertical movement of the container, a pump having an intake pipe extending into said trough, operating means for said pump actuated by movement of said container, and a discharge for said pump.

3. In a pump, a main casing having an outlet at its bottom communicating with a vertical valve casing, disposed externally of the casing over a sump at the end of a trough leading from the casing, a container slidable vertically in said main casing and formed with an air chamber and with a water chamber over the air chamber having a discharge pipe extending downwardly through the air chamber and into the lower portion of the main casing, an upwardly opening valve for said pipe movable to an opened position by engagement with the bottom of the main casing during downward movement of the container, a valve member in said valve casing shiftable vertically to opened and closed positions and having a stem extending upwardly, a toggle structure yieldably resisting movement of the stem and the valve member, an arm carried by said container and engaging the stem to impart opening and closing movement thereto during movement of the container, a pump having an inlet pipe communicating with said sump and a discharge pipe, and operating means for said pump actuated by vertical movement of the container.

4. In a pump, a main casing having an outlet at its bottom communicating with a valve casing disposed vertically at a side of the main casing over a sump of a trough, a container slidable vertically in the main casing and formed with a float and a water chamber over the float, the water chamber having a discharge pipe extending downwardly through said float into the portion of the main casing under the container and being controlled by a valve normally closed and adapted to be moved upwardly to an opened position by contact with the bottom of the main casing, a valve slidable vertically in thevertical valve casing, a member carried by said container and serving to intermittently open and close the vertically slidable valve during vertical movement of the container, a pump for withdrawing water from the sump, and operating means for said pump actuated by vertical movement of said container.

5. In a pump, a main casing having an outlet at its bottom and communicating with a controlled discharge pipe in position for delivering water into a sump of a trough, a water container slidable vertically in said main casing and provided with a float at its bottom, an outlet pipe for said Water container extending downwardly through the float and communicating with the lower por tion of said casing and controlled by a valve adapted to be opened as the container and float approaches the bottom of the casing and closed during upward movement of the container and float, means carried by said container for opening and closing the valve of the discharge pipe during upward and downward movements of the container and the float means for delivering water into said container, a reservoir, a pump having an inlet pipe communicating with said sump and a discharge pipe communicating with the reservoir, and operating means for said pump adapted to be actuated by vertical movement of the container.

JOHN M. BALDWIN.

1 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 939,506 Hubmann Nov. 9, 1909 1,615,556 Stanworth Jan. 25, 1927

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