US976070A - Valve. - Google Patents

Description

BQL. GROOMS.

VALVE. 1 APPLIOATION FILED JUNE 11, 1909.

Patented Nov. 15, 1910.

Suva/win ELIAS I1. GROOMS, OF GULFPORT, MISSISSIPPI.

VALVE.

Specification of Letters Patent.

Patented Nov. 15, 191.0.

Application filed June 11, 1909. Serial No. 501,595.

To all whom it may concern:

Be it known that I, ELIAS L. GROOMS, a citizen of the United States, residing at Gulfport, in the county of Harrison and State of Mississippi, have invented new and useful Improvements in Valves, of which thefollowing is a specification.

This invention relates to valves of that class known as the globular valves and the object of the invention is to provide a device of this character which may be constructed entirely without the use of packing and which has the valve proper connected with a non-circular stem so that the rotary movement of the valve is entirely prevented.

With the above and other objects in view which will appear as the description progresses, the invention resides in the novel construction and combination of parts hereinafter fully described and claimed.

In the accompanying drawing, I have illustrated a simple and preferred embodiment of the improvement and in which,

Figure 1 is a longitudinal sectional view of a valve constructed in accordance with my invention. Fig. 2 is a horizontal sectional view upon the line 22 of Fig. 1.

In the accompanying drawing the numeral 1 designates a valve casing of the ordinary construction being provided with an inlet and an outlet opening 2, and being also provided with the usual valve seat 3. The casing 1 has its upper portion preferably provided with interior threads for a suitable distance and these threads are adapted for engagement with exterior threads, provided with a reduced downwardly extending flange integrally formed upon the hood 4 of the device. The hood 4 is provided with a centrally arranged bore which comprises an up per compartment 5 and a lower compartment 6 divided from each other by an offset shoulder 7. The upper compartment 5 is preferably cylindrical in cross section and the upper extremity of the hood is provided with exterior threads 8, which are adapted for the reception of a cap 9 of the device. The cap 9 has its inner horizontal wall dished as at 10 and is adapted to serve as a seat for a gland 11. It is to be understood that the gland 10 and upper portion of the cap 11 are each provided with centrally arranged alining openings and these openings are adapted for the receptlon of a stem 12 provided upon an operating handle 13. Positioned within the compartment 5 and surrounding the stem 12 is a helical spring 14 which is adapted to exert pressure between a washer 15 positioned upon the shoulder 7 and the gland 11, thus forcing the said gland into engagement with its seat 10 and the shoulder 7.

The cap 9 is provided with a threaded opening, which is adapted for the reception of a threaded member 18, and the stem 12 is provided with an annular groove 17 which is adapted for the reception of the threaded element 18, the said arrangement preventing the upward or downward movement of the stem 12.

The lower compartment 6 of the hood 4 is non-circular in cross section and this noncircular portion is adapted for the reception of an exterior non-circular sleeve 19. The sleeve 19 has its lower extremity provided with offsets 20 which are adapted to engage within an upstanding pocket 21 provided by the main valve 22. The ofiset member 20 is retained upon the pocket through the medium of a suitable washer or cap 23 and this cap may be secured to the walls provided by the pocket in any suitable or desired manner. The upper portion of the sleeve 19 has its interior of a substantially circular formation, and is provided with a plurality of threads which are adapted for engagement with exterior threads 24 carried by the lower portion of the valve stem 12.

From the above description, it will be noted that it is merely necessary to rotate the wheel 13 to cause the sleeve 19 carrying the valve 22 to be raised or lowered away from its seat 3, and it will be further noted that it is impossible for the valve to raise from its seat by being rotated under the infiuence of the pressure of the fluid within the casing 1. It will be still further noted that the gland or auxiliary valve 11 is normally forced upward under the tension of the spring 14 against its seat 10 so as to effectively prevent leakage of the fluid when the valve is raised away from its seat.

Having thus fully described the invention what is claimed as new is:

In a valve of the class described, the combination with a casin having an inlet and an outlet opening an a valve seat between the openings, a hood upon the casing having a central bore, and a shoulder within the bore dividing the same into an upper and a lower compartment, the lower compartlnent being non-circular in cross section, a threads, a handle for the stem, and provioap for the hood, a band contacting the cap, sion upon the cap for allowing the rotation a Washer upon the shoulder, a helical spring but preventing a sliding movement of the between the band and the Washer, a valve stem.

5 for the valve seat of the casing, an ofiset In testimony whereof I afiiX my signature 15 non-cylindrical sleeve connected With the in presence of two Witnesses.

valve and extending Within the non-circular ELIAS L. GROOMS. compartment of the hood, said sleeve being Witnesses: provided With interior threads, a stem hav- GEO. G. LITTLE,

0 ing a threaded portion engaging said E. E. WHARTON.

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