US2252597A - Well pump - Google Patents

Description

IAug. 12, 1941. w. F. HOLUSTER 2,252,597

WELL PUMP l Filed March 29, 1940 2 Sheets-Sheet l 25 E' 20 I nln-nnml afzmwhjw 12, 1.9441'. w. F; HoLLlsTx-:R l 2,252.59,7 I

WELL PUMP 'Filed March 29, 1940 2 sheets-sneer 2 wl rNess @au all loi/mm3 a Patented Aug. 12, 1941 UNI D,"

wennrvr/irY Willoughby Ff. Hollister, Cowen, W. Va.-

Application .March 29, 1940, Serial No.. 326,739

(Cl. 10E-455) 2 Claims'.

The invention aims toA provide: a new and im proved pump for pumping water from wells, either deep or shallow, the construction being such-that the pump may be readily installed inusuch manner as to protect it .against freezing.

A further. object of the invention istoY provide a pump iny which novel provision is made. for stably suspending ther pumping unit in the well, there beingtwo sus-pension lines provided-for said unit, one of which-linesis thewater discharge pipe and the other of which is preferably a priming pipe for said pumping unit.

Yet another object is to provide a construction which will be relatively simple and inexpensive, yet efficient and durable. f

`With the foregoing and minorlobjects inview, the invention'resides inthe novelsubject matter hereinafter described and claimed,y description being accomplished by reference. to Ithe accompanying drawings.

Figure 1 is. a side elevation partly.. inl section showing the pump within a well.

Figure 2 is an enlarged verticalsectional view through the'pumping unit and adjacent parts.

Figure 3-is a-horizontal sectional-view. on line 7 3--3 of Fig. 2.

Figure 4 is a fragmentary disassembled perspective view showingY portions of the pumping unit.

A construction has beenshown whichis considered preferred, but it is to be understood a-t the outset that variations may be made within the scope of the invention as claimed.

One of many forms of pumping head is shown at 5; said head having abase tf to rest on a well casing 'I-or other desired support; The internall mechanism of the pumping head 5 which vertically reciprocates the pump rod 8, is driven by an electric motor 9, pulleys I and II, and a belt I 2. The sizes of the pulleys I- and IImay vary according to the speedwith which the pump rod B is to be reciprocated. The base is form-ed with a Ipump rod opening I3, with a-second opening I4 at one side of said opening I3, and with a third opening l5 at the opposite side of said opening I3.y The pumprod llV extends slidablyV through the opening I-3,and the upper ends of two suspension lines l6` and I1 are secured in the openings I4 and I5 respectively. Nuts I8 are preferably threaded on said lines I6 and I'I in contact with the upper and lower sides of the base 6 to secure said lines to said base. Both lines I6 and I1 are preferably formed of pipe, the sections of which are suitably coupled together, the line I'I constituting the water disger of` freezing, the upper extremity of the water discharge line'll may connect with piping leading tera tank, faucet or the like, but where danger of freezing exists,` a-branch line 'is preferably.

provided extendingthroughan opening in the casing "l belowthev frost line,- and enclosed in anappropriate` housing 2l.. A suitable valve 22.

isshown .in theline. I'I'l above. the branch `2(1- to be closed when said branch-is to beused forV water. discharge purposes.` 23, connected with the. branch 20, is. a-mere indication. of apressure-actuated switch for controlling the. pump motor, but it will. be obvious that this motor could be controlled'by hand or. in any desired way. 2li, associatedwi-ththe branch 2li, denotes l a suitable. packing arrangement and union, the

packing 4portion of which prevents any foreign matter from entering the well casing through the opening which receives said branch.

Between the `base 6 and the. pumping unitIB, I provide. one or more stay plates thenumber depending upon the distance between said base and; pumping unit. Each stay plate 25 is formed with an opening 25 through which the pump rod 8 passes, with an opening 21 through which the line IB extends, and with an opening 28 through which the line II passes. The two lines are secured to, the plate by nuts 29 threaded on said lines. and contacting with the upper and lower sides of said plate. The peripheral edge of the plateis intended to be in contact with the well unit I3 is shown more particularly in Figs. 2, 3

and 4. An outer cylinder 30 is provided having its lside wall 4cast integrally with its lower end 3l but` having a. removable upper end 32 secured in place by cap screws 33er in any other preferred. manner. An'appropriate gasket 34 is provided between the side wall of the cylinder 3Q and the removable upper end 32 and-I prefer that the latter beflanged at 35 to protect said gasket. A central opening 36 and two other openings 3T and 38 are formed through the cylinder end 32, the lower ends of the lines I6 and `Il being secured in these openings respectively,

by means of nuts 39 threaded on said lines in contact with the upper and lower sides of said end 32.

Within the cylinder I9, I provide vertical partitioning means 4!) which divides the interior of said cylinder into a water-receiving chamb-er 4| and a water-discharge chamber 42, the former being in communication with the priming line I6 and the latter in communication with the water discharge line The lower end of the cylinder 30 is formed with an opening 43 for connection with a water inlet pipe 43 having a foot Valve 44, said pipe communicating with the chamber 4|. The partitioning means 40 includes an inner cylinder 45, webs 46 integral with this cylinder and with the wall of the cylinder 30, and a web 4'| integral with the lower ends of the inner and outer cylinders and of course also integral with the lower ends of the webs 46. The interior diameter of the inner cylinder 45 is the same as the diameter of the opening 36 in the present disclosure, and the upper end of said inner cylinder 45 is in abutting relation with the removable upper end 32 of the outer cylinder 30, a suitable gasket 48 (which may be a portion of 34 if desired) being interposed between the otherwise abutting parts for liquid and air sealing purposes. A lining sleeve 49, preferably formed of brass, is suitably secured in the inner cylinder 45 and projects through the opening 36, the upper end of this sleeve being provided with a stu-fling box 50 of any -desired construction, through which the pump rod 8 extends, said pump rod being provided with a double-acting piston having cup leathers or the like engaging the cylinder lining 49. Below the piston path, the cylinder 45 is provided with a water admission check valve 52 and with a water discharge check valve 53, and similar valves 52 and 53' are Yprovided for said cylinder 45 above the pis ton path. The valves 52 and 52 of course communicate with the chamber 4| and the valves 53 and 53 with the chamber 42. It is preferable that the pump rod 8 extend downwardly from the piston 5| as shown at 54 so as to strike the lower end of the cylinder 45 and positively prevent any of the cup leathers of the piston 5| from engaging the water admission and discharge openings in the lower end of said cylinder. Any possible upward travel of the piston su'icient to cause its cup leathers to engage the upper water inlet and discharge openings, may be prohibited by a turn buckle 55 which I have shown in Fig. 1 for connecting two of the sections of the pump rod B with each other, said turn buckle being below the pump head base 6 to strike the latter in case of any excessive upward movement of the pump rod. Normally the extension 54 below the piston 5| and the turn buckle 55 do not strike anything but in the case of excessive wear on parts within the pump head 5, such striking would be permitted, giving warning that the parts required attention. At the same time, the extension 54 and the turn buckle 55 would prevent the cup leathers of the piston from being worn by passage across water admission or outlet openings of the inner pump cylinder 45.

The check valves 52, 52', 53 and 53 may be of any preferred form. They are preferably threaded into place and the openings into which they thread may be drilled by inserting a drill of proper size through larger openings 56 in the side wall of the outer cylinder 36, said openings 56 being suitably plugged at 5l after they have performed their function.

When initially starting the pump, it may be primed by pouring water down the priming line I6 to more or less fill the water-receiving chamber 4|. As soon as the pump starts to handle the water, the upper end of the line I6 may be closed, for instance, by threading an ordinary cap 58 thereon. During reciprocation of the piston 5|, water is elevated through the inlet pipe 43 to the chamber 4|, is drawn from this chamber into the inner cylinder 45, is forced from this chamber into the chamber 42 and ascends through the water discharge line I1. By closing the valve 22 and making use of the branch 20 below the frost line, it is insured that no water in the pump can freeze. Air trapped in the upper end of the priming line I6 holds the water down in this line to such an extent as to prevent freezing.

By adding sections to or subtracting them from the pump rod 8 and the two lines I6 and the pumping unit I9 may be suspended at any desired elevation within the well and it will thusbe clear that the same pump structure is well adapted for use in either deep or shallow wells.

Attention is again invited to the possibility of making variations within the scope of the invention as claimed.

I claim:

1. In a well pump, an outer cylinder for suspension in a well, said outer cylinder having a closed lower end and a removably secured upper end, vertical partitioning means in said outer cylinder and joined to the side wall and lower end thereof, said partitioning means dividing said water cylinder into a water-receiving chamber and a water-discharge chamber and including a vertical inner cylinder having an open upper end in abutting relation with said removable upper end of said outer cylinder, said removable upper end being provided with an opening alined with said inner cylinder and of a diameter equal to the inner diameter of said inner cylinder, a lining sleeve secured in said inner cylinder and projecting upwardly therefrom through said opening, a stuing box mounted on and projecting above the upper end of said lining sleeve, a pump rod extending through said stu'ing box and having a double-acting piston in said inner cylinder, water inlet and discharge valves placing the ends of said inner cylinder in -communication with said chambers, and water inlet and discharge means for said chambers.

2. In a pump, a cylinder having an open end, a lining sleeve secured in said cylinder and projecting beyond the same through said open end thereof, a stufng box mounted on and carried solely by the projecting end of said lining sleeve, a piston in said cylinder having a rod extending fluid-tightly through said stuffing box, and intake and discharge valves for said cylinder.

WILLOUGHBY F. HOLLISTER.

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