US837831A - Pumping device. - Google Patents

Description

I v PATENTED DEC. 4, 1906 J. A. HELLSTROM.

PUMPING DEVICE.

APPLICATION FILED FBB.15,1905.

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UNITED STATES PATENT OFFICE.

JOHN A. HELLSTROM, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR, BY

MESNE ASSIGNMENTS, OF ON E-HALF TO THE HOUGH PUMP COM- PANY, ()F FRANKLIN, PENNSYLVANIA.

PUMPING DEVICE.

Specification of Letters Patent.

Patented Dec. 4, 1906.

To all whom it may concern:

Be it known that I, J OHN A. HELLSTROM, a subject of the King of Sweden and Norway, residing at Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Pumping Devices, of which the following is a specification, reference being had therein to the accompanying drawings.

This invention relates to certain new and useful improvements in pumping devices, and more particularly to that type of pumps used in connection with Artesian or oil wells.

The invention primarily aims to provide novel means for releasing the pressure of fluid from the piston; furthermore, to provide a plurality or series of check-valves which are arranged in such a manner as to facilitate the pumping of a well and increase the output thereof. To this end I have provided a novel form of stuffing-box through which the hollow polished. rod carrying the piston passes, the stufling-box being so constructed as to readily withstand the pressure exerted upon it by the fluid contained within the tubing and also constructed whereby it can bereadily removed at any time.

The invention finally consists in the novel construction, combination, and arrangement of parts, which will be hereinafter more fully described and then specifically pointed out in the claims, and, referring to the drawings accompanying this application, like numerals of reference designate corresponding parts throughout the several views, in which Figure 1 is a side elevation view of the lower end of a pumping barrel and tubing. Fig. 2 is a vertical sectional view of the same. Fig. 3 is a top plan view of the gland of my improved stufling-box. Fig. 4 is a side elevation view of the same. Fig. 5 is a vertical sectional view of the lower end of a pumping barrel, illustrating one of my improved valves. Fig. 6 is a transverse sectional view taken on the line 0c :0 of Fig. 5; and Fig. 7 is a top plan view of my improved stuffing-box, illustrating the gland thereof removed.

To put my invention into practice, I employ a working barrel 1, having a threaded end 2, and upon this threaded end I secure my improved coupling, which comprises a cylindrical casing 3, having a tapering end 4.

. vided with a The reference-numeral 7 designates the ordinary and well-known type of piston, which is mounted within the working barrel 1. The piston 7 is of a conventional form and need not be further described, with the exception that it is capable of elevating liquid when vertically reciprocated. By referrmg to Fig. 2 of the drawings it will be observed that the piston 7 carries a screw-threaded stud 8, and upon said stud I screw a coupling member 9. Secured to the coupling member is a-vertically-arranged pipe 10 which extends upwardly through the stuffing-box and is provided on its upper end with a check-valve 1 1, to which is connected a pumping-cable 12. The check-valve 1 1 is of a conventional form, consisting of a spider-like casing 14, having a valve-seat 15 formed therein. In said casing is mounted a spherical body or ball 16, which normally rests within the valve-seat 15 and closes the upper opening of the pipe 10. The pipe 10, which is generally termed a valve-rod, is of a polished nature, whereby it will easily reciprocate within the stuffing-box. The lower end of the pipe is prolurality of apertures 17, the object of which will be hereinafter described.

Referencewill now be had to Figs. 2 to 4, inclusive, wherein I have illustrated my improved stuffing-box. The stufling-box is arranged within the cylindrical casing 3, the upper end of which is larger than the lower end, and in said casing I mount my improved stufiin'g-box, which is illustrated in the abovementioned figures of the drawings. By referring to Fig. 2 of the drawings it will be observed that I have provided the cylindrical casing 3 with tapering side walls 18, and these side walls are adapted to support the member 19 of my improved stuffing-box. This member consists of a cylindrical shell having an annular recess 20 formed therein, and in said recess suitable packing or stufling material 21 is adapted to be mounted. A

collar 22. having a screw-threaded end 23, is

then employed for retaining the packing 21 within the member 19, said collar being screw-threaded into the lower end of the recess 20. A jam-nut 24 is employed to prevent the collar 22 from becoming detached from the member 19. The collar 22 is provided with a peripheral flange 25, and surrounding said collar is aleather collar 26, which serves functionally as a packing for the lower part of my improved gland. The leather collar or washer is retained upon the collar 22 by a nut 27, secured upon the lower screw-threaded end 28 of the collar. For the convenience of manipulating the gland I have provided the upper end of the member 19 with a hexagonal portion 29.

The operation of the parts just described and illustrated in Fig. 4 of the drawings is as follows: When the piston 7 is moved downwardly within the working barrel 1, the liquid passes up through the piston 7 into the working barrel 1, and as the piston 7 is moved upwardly the piston 7 closes and the fluid contained within the working barrel 1 is forced through the openings 17 of the pipe 10 into said pipe, from where it passes upwardly into the tubing 6, the ball 16 having been elevated by the fluid and having permitted the same to pass into the tubing upon the top of the gland of my improved stuffingboX. On account of the large area of the top of the gland the fluid contained within the casing 6, which is considerable, will retain the gland within the cylindrical casing 3 during the operation of removing the fluid from the well. When the piston 7 again recedes or mov es downwardly, the ball 16 of the check-valve 11 closes the opening of the pipe 10, and the suction created by the lowering movement of the piston 7 withdraws whatever fluid that may remain within the pipe 10 of the pumping mechanism. This oil is educed into the working barrel 1, and upon an upward movement of the piston 7 the fluid is again driven into the pipe 10 and through the check-valve 11 into the tubing 6.

I The withdrawal of the fluid fromwithin the pipe 10 is, as before stated, produced by the downward movement of the working valve, and this withdrawal of fluid from the pipe 10 takes place simultaneously with the passage of fluid upwardly from the lower end of working barrel 1 through the working valve.

The other advantages of my improved device as above set forth will be hereinafter more fully considered in connection with the I valve I have illustrated in Figs. 5 and 6 of the consists of two members 30 and 31, the member 30 being provided with a contracted interiorly-screw-threaded end 32, which is adapted to receive the screw-threaded end 33 of the pipe 10. The member 30 is preferably cylindrical and is provided with a ribbed recess 34, the lower edges of said recess being scre'wthreaded, as indicated at 35. The recess 34 communicates with the pipe 10 by an opening 36, formed in the contracted end 32 of the member 30. In the ribbed recess 34 I mount a spherical body or ball 37, which is retained therein by the screw-threaded end 38 of the member 31. The member 31 is of a spiderlike construction having radially-disposed openings 39 formed therein which communicate with the ribbed recess 34' by an opening 40, formed in the screw-threaded end 38 of the member 31.

The object of the valve just described is to primarily retain the fluid within the pipe 10 on the downward movement of the piston 7. In operation the downward movement of the piston 7 causes the fluid to enter the working barrel 1, also to pass upwardly through the openings 39. I desire to call particular attention to the ribbed recess 34, and it will be observed by the construction of the ribs that the spherical body or ball 37 is prevented from closing the opening 36 during the upward movement of the piston 7, consequently permitting the fluid to flow around the ball- 37 and into the pipe 10. The upward movement of the piston 7 now causes the oil contained within the barrel 1 to enter the openings 39, elevating the ball 37 and permitting the oil to pass upwardly in the pipe 10 out of the check-valve 11 into the tubing 6. Then the piston 7 again descends, the ball 37 closes the opening 10 and prevents the quantity of fluid contained within the pipe 10 from again entering the working barrel, thus reducing the lift of the barrel and increasing the capacity of the working barrel to receive a new supply of fluid. This feature alone greatly increases the output of a well when provided with my improved pumping device, and in this connection it will be observed that the valve illustrated in Fig. 5 of the drawin 's can be readily used in connection with the c eck-valve 11 or the check-valve can be dispensed with and the valve illustrated in Fig. 5 used independently.

The construction of my improved stuffing boX permits of the same being easily and quickly removed from a well without removing any part of the tubin and this construction permits of the g and of my improved stuffing-box being packed from time to time whenthe packing or stufling material needs renewing.

While I have herein illustrated the preferred manner of constructing my improved pumping device, it will be manifest that my improved valve and stuffing-box can be IIO readily employed in connection with other types of working valves and barrels than that illustrated in the accompanying drawings, and I do not care to confine myself to the construction illustrated, as various changes may be made in the details of construction with out departing from the general spirit and scope of the invention.

. What I claim, and desire to secure by Letters Patent, is

1. In a pumping device, the combination i with a tubing, a working barrel and a coupling connecting said tubing and working barrel, said coupling having inwardly-tapering internal walls, of a piston mounted in said working barrel, a stufiing-box arranged in said coupling between the tubing and the piston, a tapering gland mounted on said stuffing-box and seated in said coupling, packing material arranged in said gland, a checkvalve arranged above said gland, and a pipe connecting said check-valve and said piston, said pipe bein provided with perforations below said stu 'ng-box.

2. In a pumping device, the combination of a tubing, a working barrel, a coupling connecting the tubing and working barrel, said coupling having a tapered central aperture, a tapered gland mounted in said coupling be+ low the connection thereof with said tubing, a collar located in said coupling and screwing into said gland, packing material located in said gland, a pipe extending through said gland and said collar into said working barrel, said pipe being formed with perforations at a point below said collar, a piston carried on the lower end of said pipe, and a checkvalve carried on the upper end of said pipe.

3. In a pumping device, the combination with a tubmg, a working barrel and a coupling connecting said tubing and working barrel, of a piston mounted in said working barrel, a stuffing-box arranged in said coupling, a gland mounted on said stuffing-box, packing material arranged in said gland, a checkvalve arranged above said gland, a pipe passing through said stufiing-box and gland and connecting said check-valve with said piston, said pipe having 'a closed lower end and being provided with perforations in its side 4 walls above its lower end and below said stuffing-box.

In testimony whereof I afiix my signature in the presence of two witnesses.

JOHN A. I-IELLSTROM. Witnesses:

K. H. BUTLER, E. E. POTTER.

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