US1516534A

US1516534A - Oil-well-working valve

Info

Publication number: US1516534A
Application number: US697061A
Authority: US
Inventors: Roland A Hughes
Original assignee: Individual
Current assignee: Individual
Priority date: 1924-03-05
Filing date: 1924-03-05
Publication date: 1924-11-25
Anticipated expiration: 1941-11-25

Description

iNom'25, i924- R. A. HUGHES OIL WELL WORKING VALVE Filed March 5. 1924 INVENTOR Patented Nov. 25, 1924.

i iiddiid ROLAND A. HUGHES, OF CYGIN'ET, OHIO.

OIL-WELL-WORKING VALVE.

Application filed March 5, 1924. Serial No. 697,061.

To all whom it may concern:

Be it known that I, ROLAND A. Thomas, a citizen of the United States, and a resident of Cygnet, in the county of Wood and State of Ohio, have invented a new and useful Oil-lVell-lVorking Valve, which invention is fully set forth in the following specification.

My invention has for its object to provide an oil well working valve that is so constructed as to be safe against separation of its parts in the operations of the well. The parts of the well known working valve are small and if they become separated it is impossible to further work the well since another working valve cannot safely be used while the separated parts are located at the bottom of the well above the case or stationary valve. The parts can only be removed by drawing the entire well casing. If the new working valve is connected to the bottom rod and operated when parts of the former working valve thus separated are resting at the bottom of the well, they will interfere with the working valve and also the stationary valve. They are moreover liable to be broken into smaller parts and cause further interference and greater trouble in the pumpin operations.

My invention also has for its object to provide a novel movable working valve member whereby its seating on the valve seat will be assured and also whereby its .opening may be made certain. The valve is so constructed that there will be a uniform wear along the line of contact between the movable member and its seat.

A working valve containing my invention is shown in the accompanying drawings. It may be varied in its details without departing from the spirit of the invention.

Figure 1 is a vertical sectional view through the valve. Fig. 2 shows a sectional view of the casing and a side view of the working valve. Fig. 3 is a sectional view taken on the line TIL-III indicated in Fig. 1.

In oil well operation, air commonly collects in the space between the working valve and the case or stationary valve, particularly when the movable member of the working valve sticks or adheres to its seat, with the result that no oil can be drawn until the movable valve member of the working valve is released. It is released frequently by lowering the working valve so that it will strike the frame of the case or stationary valve at the end of each stroke to jar the movable member of the working valve free from its seat. This, however, often results in breaking the working valve and crushing of the parts and the conse quent interference with the operations of the valves of the oil well. This necessitates the pulling of the well at a considerable expense and loss of time.

The working valve embodying my invention is so constructed as to constitute a safety valve in that it prevents the liberation of the parts by means that will open the movable member of the valve by merely lowering the valve and without pounding the valve. 7

In the drawings, 1 is the oil well casing and 2 is the stationary valve located at the lower end of the casing. These parts are constructed in the well known manner. 3 is the working valve which is connected to the valve rod 4. i

The upper end of the working valve is provided with a stud 5 located on the upper end of a cage 6. The valve rod 4 is threaded on to the stud 5 and thus connected to the working valve. The cage 6 is provided with suitable openings 7 that permit the upward movement of the oil during the operations of the pump. A ring 8 is secured in the cage 6 between a suitable shoulder 9 formed within the cage, and a sleeve 10 that is threaded into the lower end of the cage 6, and so as to butt a flange of the ring 8 on which the seat is formed and thus to clamp the ring 8 in position within. the cage 6. The sleeve 10 is provided with a plurality of leather cups 11 that are suitably secured by means of the rings 12. The cups 11 and the rings 12 are constructed in the manner well known in the art. The cups 11 are securely clamped and held in position by means of a perforated bottom 13 that is threaded on to the lower end of the sleeve 10 and so as to clamp the cups and rings between the upper edge of the bottom and a shoulder 14. formed on the sleeve. The bottom is in the form of a cup having the perforations 15 to allow the oil to freely enter the interior of the sleeve and yet prevent the entrance of any material of a size that would be apt to clog the valve and interfere with its operations.

A movable valve member is located within the sleeve 10 and is supported on the ring 8. The movable valve is provided with a head 16 and a stem 17 The head 16 is substantially dome-shaped in that it has a semispherical top portion and a cylindrical body portion. The lower edge portion of the head 16 rests upon the ring 8 when the valve is closed and the head is guided in its movements by the inner surfaces of the cage 6. The valve is thus closed by contact between the two 'planular surfaces formed by the lower end of the cylindrical portion of the head and the upper surface of the ring 8. The stem extends through'the sleeve 10 and the bottom 13. It has a diameter smaller than that of the interior of the sleeve and of the bottom in order to permit free flow of the oil through the valve. The lower end of the stem 17 is secured on the outside of the cup by a means that cannot be released from the stem in the valve operations. It is thus secured, preferably, by means that also limits the upward movement of the movable member of the valve. In the construction shown, a nut 18 is threaded on to the end of the stem 17 and a key pin or split 'tends through all of the parts of the valve and although they may become loosened by reason of the unscrewing of the bottom or cup 13, yet they cannot separate from the valve by reason of the lock that prevents the bottom or cup 13 from separating from the sleeve 1O. Although the valve may become separated from the rod 4, it can be easily picked up by merely rotating the rod 4 which will screw on to the stud 5 and thus the rod may be re-connected to the valve.

If the valve sticks, it can be easily opened by lowering the valve so that the end of the stem 17 will strike the frame or cage 19 of the stationary valve. This will push the head upwards and away from the seat formed on the upper side of the ring 8. Thus the valve will be opened and the oil will freely wash or flow through the valve,

I claim: I

1. In a working valve, a cage, a sleeve connected to the cage, rings and cups located on the sleeve, a bottom connected to the sleeve, a member forming a valve seat and located in the cage, a movable valve member having a head fitting the seat and a stem extending through the sleeve and the bottom, a keying means for preventing separation of the bottom from the sleeve and separation of the rings and cups located on the sleeve.

2. In a working valve, a cage, a sleeve connected to the cage, a bottom connected to the sleeve, rings and cups located on the sleeve, a valve member located in the cage and having a stem for engaging the bottom, and means located on the said stem for locking the sleeve, the bottom and the ringsand cups together.

3. Ina working valve, a cage, a sleeve connected to the cage, a bottom connected to the sleeve, rings and cups located on the sleeve and secured by the bottom, a movable valve member located in the cage and having astem extending through the sleeve and the bottom the said valve member loosely engaging the valve seat and the bottom.

In testimony whereof, I have hereunto signed my name to this specification.

ROLAND A. HUGHES.