US1006520A - Gage-cock. - Google Patents

Description

J. E. AUSTIN.

GAGE COCK.

. APPLICATION FILED NOV. 17, 1909. I 1,006,520. Patented 0ct.24, 1911.

Z J 5 /4 /6 j g c ime/Mow UNITED STATES: PATENT OFFICE.

J'OSEPI'I,E. AUSTIN, 0F RICHMOND, VIRGINIA, ASSIGNOR OF, THREE-FOURTHS "J30 LEROY M. LEE, Q1? RJZCHMONID, VIRGINIA.

GAGE COCK. Y j; V

Specification of Letters Patent.

Patented Oct, 24, 1911.

To all whom it may concern:

Be it known that I, JOSEPH E. AUSTIN, a citizen of: the United States, residing at Richmond, in the county ofI-Ienrico and State ofVirginia,have invented new and useful Improvements in Gage-Cocks, of which the following is aspecification.

The invention relates to an improvement iingage cocks designed'particularly for use in connection with any type of boiler, and is particularly directed to a gage cock constructed to dispense with the usual valve packing and in which the valve is practically self-grinding and becomes more perfectly seated with continued use.

The main object of the present invention is the provision of a gage cock in which the valve is operable from'open to closed position without the usual longitudinal movement, and the valve and seat are so arranged that the former maybe continuously grounded during use-to provide a more perfect cooperation, the valve operating to protect the seat against the steam or water and thereby prevent the usual wear or erosion of said seat incident to mineral or foreign substances in the water.

The invention inits preferred details of:

construction will be desoribedin the following specification, reference being had particularly to theacoompanying drawings, in which:v

Figurel is a view in longitudinal-section, partly in elevation, of the improved valve.

Fig. 2 is a sectionon line 2-2 of Fig. 1.

Fig. 3 is a longitudinal section, partly in elevation, of the valve body. Fig. 4 is an enlarged broken side elevation of the valve.

Referring particularly to the accompany- 1ng drawings, the improved gage cock includes-a-connecting section 1 formed at one end with an external thread 2 for connection with the boiler, the section being enlarged at the opposite end and formed to provide a chamber for the reception of the valve body, said chamber being internally threaded at 3 and in open communication with the bore 4 of the section. Thevalve comprises a body 5 formed at oneend with a threaded projection 6 to fit within the section 1, the body being formed with a longitudinal bore 7 alining with the bore in the section 1. The sectional contour of the bore 7 forms one of the particular features of the present invention in that from the point of alinement withtlie-end of the section 6 of the body said here uniformly converges toward the opposing end of the body, providing an inclined inner surface 8 which forms the valve seat. At theextreme or outer end the bore is, for a short distance, of uniform diameter, as at 9, torotatably 1 support the stem of the valve. The body 1 f isprovidedjwith a removable orintegrall'y jformed nipple 10 designed to direct the i dischargefrom the valve, a bore 11 of which nipple communicates with the nipple of the 1 body. Within the bodyis mounted a valve 5 proper-comprising a hollow member 12 having its peripheral surface inclined at the same angle of inclination with thesurface of the bore. The bore 12 is exterior'ly providedwith an annular strip of'white metal 1 3 providing'an-appropriatebearing surface between the valve-proper and its seat. The

- of the bore in order toguardthe valve-in rotation. The wall of the member 12, which aspreviously stated is hollow or cup shaped, is formed with one or more openings 16 having a diameter-exceeding that of the bore 11 of thenipple, so that when any one of said openings is alined with said bore, an. uninterrupted communication is established between the nipple and the boiler.

It is to be particularly noted that the valve seat 8-is of materially greater-"length than the contacting or engaging-portion of themember 12, and that this surface converges in the direction or travel of the escaping steam or water.- Furthermore, the valveproperis hollow or cup-shaped so that all of the escaping fluid is compelled to pass into the valve in reachingthe nipple. Furthermore, any of the usual packing is lunnecessary with the present construction, ithus obviating an undesirable condition in- @cident to the renewal and wear of such ipacking. Therefore, it will be noted that the movement of the valve from closed to openposition is simply a, revoluble movement wholly independent of any lengthwise movement. Therefore, the threads usually employed in this type of valve for rangement of the valve and valve seat. It

will be noted from the construction de-' scribed that each operation of the valve, owing to the relatively connected arrangement of the engaging surfaces and the fact that the surface of the seat is of greater length than the similar path of the valve, will tend to the safeguarding of the engaging surface of the valve, hence rendering said valve more perfectly seated during continued service. Furthermore, the contact between the seat and valve is such as to prevent steam or water reaching such plane of contact, whereby to protect the seat against mineral or foreign substances in the fluid.

The valve structure is exceedingly simple, requiring in eflect but two parts, and incident to the non-requirement of packing, the safeguarding action of the valve, and the protection of the seat against foreign mate- 'rial in the fluid, insures a greatly extended life without refitting, as compared with the usual gage cook. The gage cock, while primarily adapted for boiler use,'is', of course, equally effective in other situations, and in such use is contemplated.

Having thus described the invention, What I claim as new is 1. A valve body and a valve therein subjected to endwise pressure from the fluid,

.said body being formed with a valve seat of greater length than the valve and disposed in the direction of movement of the inlet pressure ofthe fluid.

2. A valve body, and a valve therein, said valve being formed with a recess whereby the valve is subjected to endwise movement under the inlet pressure of the fluid, the body being formed with a valve seat extending beyond the operative position of the valve in the direction of movement of the valve under such fluid pressure.

3. A valve body and an inclined valve therein, said valve being adapted for endwise movement under inlet pressure from the fluid, said body having an inclined seat extending beyond the valve in the direction of movement of the latter under such fluid pressure. v

4. A valve body formed with a conical valve seat, a conical valve mounted therein and open to endwise movement under the pressure of the fluid, the said seat extending beyond the valve in the direction of'movement of the latter under such fluid pressure.

5. A valve body and a valve mounted for rotation therein, said valve being adapted for endwise movement in the body under inlet fluid pressure, the body being formed with a seat for the valve extending beyond the valve in the direction of movement of the latter from such fluid pressure.

6. A gage cock including a valve body having a conical valve seat formed therein, a valve cooperating with said seat and mounted for rotation therein, said valve being held to its seat by the pressure of the fluid, the seat extending beyond the valve in the direction of movement of the latter under such pressure, whereby the valve seat will automatically accommodate itself to the valve as the latter becomes worn from use through the movement of the valve on the seat incident to the fluid pressure.

7. In combination, a valve body having an inlet opening and a conical valve seat disposed in a' direct line with said inlet opening and further provided with a nipple extending transversely therefrom and having its bore extending through the valve seat, and a valve of conical form of less length than the valve seat and provided with -a recess and disposed in the valve body opposite to the inlet thereof, whereby the pressure of fluid flowing through said inlet opening will hold said valve to its seat, said valve being provided with a lateral opening connecting with said recess and of larger diameter than the diameter of the nipple bore and being adapted for endwise movement on its seat under the influence of the pressure of the inflowing fluid.

8. A gage cock including a valve body, an outlet nipple communicating with the interior thereof, said body being formed with a converging valve seat having its maximum diameter toward the inlet end of the body, a valve mounted for rotation in the seat and formed throughout to conform to the form of the seat, said valve being shaped with an opening at the larger end of the valve, whereby the pressure is directed into the valve with the effect to force the same toward the smaller end of the valve seat, the

Wall of the valve being formed with an opening to register with the outlet opening when the valve is in operative position.

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

JOSEPH E. AUSTIN. Witnesses:

LEROY M. LEE, ANDREW WELSH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

washing'ton, D. C.

Images