US1054174A - Pump. - Google Patents

Description

P. UHRISTMAN.

PUMP.

APPLIGATION FILED APRJB, 1912.

1 ,054, 1 74;, Patented Feb. 25, 1913.

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UNITED STATES PATENT OFFICE.,

PETER CHRISTIVIAN, 0F GREEN BAY, WISCONSIN.

PUMP.

To all 'whom t may concern:

Be it known that I, PETER CHRISTMAN, a citizen of the United States, residing at Green Bay, in the county of Brown and State of Tisconsiin have invented certain new and useful Improvements in Pumps; and I do 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 relates to improvements in pumps. l

One object of the invention is to provide a submerged pump having an improved construction and arrangement of intake and discharging mechanism capable of taking in and delivering large quantities of water with a minimum amount of power.

Another object is to provide a pump of this character which will be simple, strong and durable in construction, efficient and reliable in operation and well adapted to the purpose for which it is designed.

1V ith these and other objects in view, the invention consists of certain novel features of construction, and the combination and arrangement of parts as will be more fully described and claimed.

In the accompanying drawings; Figure 1 is a perspective view of my improved pumping mechanism with the top plate or upper end of the pumping cylinder removed; Fig. 2 is a central vertical section of the pump cylinder or lower end of the delivery pipe; Fig. 3 is a top plan view of the pumping cylinder; Fig. a is a horizontal sectional view of the same.

In t-he embodiment of the invention, I provide a pump cylinder 1 closed at its lower end by a bottom plate or head 2 having thereon a centrally disposed step bearing 3. The upper end of the cylinder 1 is exteriorly threaded and has screwed thereon an upper head having a downwardly projecting annular flange 5 threaded on its inner side to engage the threaded upper end of the cylinder 1. On the head l is an upwardly projecting annular flange 6 the diameter of which is slightly less than the diameter of the head as shown. In the center of the head 4 is a bearing opening for the pump operating shaft7 which projects therethrough and extends downwardly through the cylinder and has its lower end revolubly mounted in the step bearing 3 in the bottom Specification of Letters Patent.

Application filed April 18, 1912.

Patented Feb. 25, 1913.

serial No. 691,552.

or lower head 2 of the cylinder. The head 4 is provided on its upper side around the bearing opening with a stuffing box 8 which provides a fluid tight joint between the shaft and head of the cylinder. The upper end of the shaft 7 projects a suitable distance above the top of the cylinder and has its upper end squared as at 9 to receive a squared socket in the lower end of an extension shaft 10 which may be of any suitable lengt-h and extends to the top of the well.

In the head or top plate t of the cylinder is an annular series of water discharging ports 11 each of which is closed by a separate flap valve 12, said valves being preferably provided on their inner edges with hinge members 13 which are engaged with hinge members 14 on the upper side of the head 4: as shown. By hingedly connecting the valves in the manner described they will swing upwardly from the pressure of the water forced upwardly through the ports from the cylinder as will be hereinafter more fully described. In one side of the cylinder 1 is a vertically disposed elongated water inlet opening 15 which opens into a receiving chamber 16 in the pumping cylinder, said chamber being preferably formed by vertically disposed diverging side walls 17 which join or are formed integral at their inner edges adjacent to the shaft 7 and at their outer edges closely engage or are formed integral with the inner sides of the cylinder thereby forming between themselves a vertically disposed passage which is V-shaped in cross section and extends from the bottom to the top of the cylinder. In the side walls 17 of the receiving chamber 1G are elongated vertically disposed water discharging ports 1S and 19. The port 18 is closed by a vertically disposed flap valve 2O while the port 19 is closed by a similar valve 21. The top or upper end of the receiving chamber 1G is closed by a triangular shaped top 2B in the opposite edges of which are seini-circular notches 24 the purpose of which will be hereinafter described.

Fixedly mounted on or formed integral with the shaft 7 is a radially projecting piston wing or blade 25 which extends outwardly to the inner surface of the cylinder and has in its outer edge a vertically disposed groove 26 in which is arranged a packing strip 27. The packing strip 27 forms a fluid tight engagement between the outer edge of the wing or blade 25 and the inner' surface of the cylinder. The upper end of the wing or blade 25 fits closely against the under side of the upper head 4 of the cylinder and on the opposite sides of the blade at its upper end and projecting in opposite directions are port covering lugs 28 the purpose of which will be hereinafter described. Connected with the upper end of the cylinder is delivery pipe Q9 the lower end of which preferably fits over and forms a fluid tight engagement with the upwardly projecting flange 6 of the head 4. The pipe 29 extends upwardly to the top `of the well or body of water in which the pump is submerged and may be of any desired length for conveying and discharging the water at the desired point.

In the operation of the pump the shaft 7 and the wing or blade 25 are oscillated or turned irst in one direction and then in the other by any suitable operating mechanism (not shown). When the wing or blade 25 is turned in the direction shown by the full line arrow a. in Fig. 4t of the drawing7 a suction is created between the blade and one side of the chamber 16 .which will open the iap valve 21 of the port 19 and will draw a charge of water through the receiving chamber into the cylinder on this side of the piston wing. While the water is thus being drawn into the cylinder on this side of the piston blade or wing, the water between the opposite side of the piston and the adjacent side of the receiving chamber will be forced out through the ports 11 and into the delivery pipe above the cylinder. In thus discharging, the water will lift the valves 12 ahead of the piston while the suction action of the piston will close and hold the valves 12 in closed position as they are passed by the piston in its oscillating movement. vWhen the piston is moving in the direction described it will be understood that the force of the water compressed by the piston will close and hold the flap valve 20 in close engagement with the port 18 in this side of the receiving chamber. then the piston has completed its stroke in this direct-ion and has been brought into engagement with this side of the chamber, said piston is swung back by its operating mechanism in the opposite direction as shown by the dotted line arrow .7) in Fig. 4 and when moving in this direction the valve 21 of the port 19 will be closed while the valve 20 of the port 18 in the opposite side of the receiving chamber will be open and water will be drawn into this side of the cylinder while the water previously drawn in the opposite side will be forced out through the discharge ports 11 as will be understood In order to preventthe water from the delivery pipe Q9 from ruiming back into the cylinder should any of the valves 12 of the ports 11 fail to close quickly enough when the piston wing or blade 25 passes beneath the same, I provide said piston wing with the port covering lugs 28 hereinbefore referred to said lugs passing beneath the ports and forming a fluid tight engagement with the inner side of the head 4t, thus keeping the ports covered for a brief period after the upper edge of the piston wing has passed beneath the same, and giving the valve time to close tightly which will prevent the water in the delivery pipe from running back into the cylinder behind the piston. The semi-circular recesses 24 in the top of the water receiving chamber of the cylinder are provided to receive the port covering lugs 28 on the piston blade thereby permitting the blade to be swung into close engagement with the opposite sides of the water receiving chamber as will be readily understood.

By constructing and arranging the water inlet ports in the manner described it will be seen that each operation of the piston will draw large quantities of water into the cylinder and by providing a plurality of discharge ports arranged as herein shown and described the water drawn into the cylinder by the piston will be forced out through said ports and the operation of the wing or blade in forcing the water out through said ports will require a comparatively small amount of power.

From the foregoing description taken in connection with the accompanying drawings, the construction and operation of the invention will be readily understood without requiring a more extended explanation.

Various changes in the form, proportion and the minor details of construction may be resorted to without departing from the principle or sacrificing any of the advantages of the invention as shown.

Having thus described my invention, what I claim is:

1. A pump of the character described comprising a cylinder having therein a longitudinally disposed inlet port and a plurality of water discharging ports, a water receiving chamber arranged in the cylinder and communicating with said inlet port, said chamber having in it-s sides, water discharging ports, valves to close the latter, a piston operating shaft, a piston wing operated by said shaft and adapted to be oscillated in the cylinder whereby water is drawn into the same on one side of said pist-on and forced out of the cylinder on the opposite side of the piston, the upper portion of said piston wing` being adapted for engagement with the water discharging ports for the purpose described.

2. In a pump of the character described,

a cylinder having therein a water inlet port, a water receiving chamber arranged over said portand having in its opposite sides water discharging ports, valves to close said ports, a. head on the upper end of said cylinder, said head having therein a plurality of water discharging ports, valves adapted to close said ports, a piston operating shaft revolubly mounted in said cylinder, a piston wing carried by said shaft and having a fluid tight engagement with the inner surface of the cylinder whereby when said wing is swung in one direction water will be drawn into the cylinder from said receiving chamber on one side of the piston and forced out through the discharge ports of the cylinder on the opposite side of the piston, and lugs arranged on the upper end of said piston wing and projecting beyond the sides of the same for covering the water discharging ports.

3. In a pump of the character described, a cylinder having therein a water inlet port, a water receiving chamber arranged over said port and having in its opposite sides water discharging ports, valves to close said ports, a head on the upper end of said cylinder, said head having therein a plurality of water discharging ports, valves adapted to close said ports, a piston operating shaft revolubly mounted in said cylinder, a piston wing carried by said shaft and having a fluid tight engagement with the inner surface of the cylinder whereby when said wing is swung in one direction the water will be drawn into the cylinder from said receiving chamber on one side of the piston and forced out through the discharge ports of the cylinder on the opposite side of the piston. and port closing lugs carried by the upper end of said piston wing, said lugs having a fluid tight engagement with the inner side of the piston head to cover and close the discharge ports therein for a brief period after the piston has passed beneath the ports whereby the water forced through the ports is prevented froin rentering the cylinder should the valves of the ports fail to close quicl-:ly after the passage of the piston beneath the ports.

e. In a pump of the character described, a cylinder having therein a water inlet port, a water receiving chamber arranged over said port and having in its opposite sides water discharging ports, outwardly opening valves to close said ports, a top to close the upper end of said chamber, said top having in its opposite side edges recesses, a head on the upper end of said cylinder having thereon a plurality of water discharging port-s, valves to close said ports, a piston operating shaft revolubly mounted in said cylinder, a piston wing carried by said shaft and having a Huid tight engagement with the inner surface of the cylinder whereby when said wing is swung in one direction the water will be drawn from the cylinder from said receiving chamber on one side of the piston and forced out through the discharge ports in the cylinder head on the opposite side of the piston, covering lugs carried by said piston and adapted to close the ports in said cylinder head for a brief period after the piston wing has passed beneath said ports, said lugs being adapted to enter the recesses in the top of the water receiving chamber whereby the piston wing is permitted to swing close to the sides of said chamber, and a water delivering pipe connected with the upper end of the cylin` der.

In testimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

PETER CHRISTMAN.

vWitnesses:

VERA M. SHRIBER, H. J. JANSSEN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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