|Publication number||US1800995 A|
|Publication date||Apr 14, 1931|
|Filing date||Nov 22, 1926|
|Priority date||Nov 22, 1926|
|Publication number||US 1800995 A, US 1800995A, US-A-1800995, US1800995 A, US1800995A|
|Inventors||Floyd Gaunt, Hughes Ralph C, Reynolds Myron B|
|Original Assignee||Reynolds Gas Regulator Co|
|Export Citation||BiBTeX, EndNote, RefMan|
|Referenced by (18), Classifications (9)|
|External Links: USPTO, USPTO Assignment, Espacenet|
April 14, 1931. F. GAUNT ET AL 1,800,995
GAS REGULATOR Filed NOV. 22, 1925 www LL In VENTORS Floyd Gaun, Myron Reyno/ds Byand Fal/vh C. Hug/76,5,
ATTORNEY 5 Patented Apr. 14, 1931 UNITED STATES PATENT OFFICE FLO GAUNT, IYRON B. REYNOLDS, AND BALH C. HUGHES, F AN DEBSON, INDIANA,
GNORS TO 'REYNOLDS GAS REGULATOR OO., OF ANDERSON, INDIANA., A
ronarroN or INDIANA COR- eas nneunuron Application llled November 22, 192B. Serial No. 150,078.
Our invention relates to improvements in pressure regulators and particularly to that type of regulator for maintaining a uniform pressure in gas service pipes irrespective of ,f1 the iuctuation of pressure in the supply mains.
It is one of the objects of our invention to provide a regulator of the above type which shall be so constructed as to permit a ready renewal of Worn parts and-ready access to the parts without dlsassociating the entire structure.
For the urpose of disclosin our invention we have il ustrated one embo iment thereof in the accompanying drawings in which Fig. 1 is a vertical sectional view of a regulator embodying our invention, and F Fig. 2 is a sectional view ori the line 2-2 of lgn the embodiment of the invention illustrated we provide a valve casing 1 having an inlet connection 2 and an outlet connection 3 which are in communication with each other through a port f1 having a valve seat 5. This port is formed 'through the transverse web 6 in the valve casing and the seat 5 is formed on a thimble 7 threaded into this web 6 and having an annular flange 8 seating against the bottom face of the web. The valve casing on the outlet side of the valve is provided with a assage or port 9 extending upwardly and into the bottom portion of the diaphragm case 10. This case is provided with a top closure member 11 and between the top closure member 11 and the case 10 a diaphragm 12 is clamped.
The diaphragm 12 is adapted to operate a valve co-operating with the valve seat and comprising a valve block 13 recessed on its upper face to receive a facing 14 which may be of leather or other suitable material. This valve block is provided with an internally threaded socket 15 adapted to receive the threaded end 16 of a stem 17, the stem' above the threaded portion being enlarged to an annular iiange 18 between which and the valve block the facing 14 is clamped. The valve block, on its bottom, is slotted as at 19 to permit the turning thereof by al screw driver 5 or other operating device inserted through an opening in the bottom of the casing 1 which opening. is normally closed by a plug 20. The stem 17 is provided with a squared guiding ortion 21 operating in a circular o ening 22 ormed 1n a guiding web 23 extending transversely of the casing from the two side walls thereof and preferably formed integrally with these walls. The upper end of the stem 17 is screw threaded as at `211 to take into the lower end of a threaded socket 25 in a clamping and guiding member 26. This clamping and guiding member at its bottom has clamped between it and a washer 27 on the stem 17, a diaphragm 28 and at its upper end clamps between it and a weighted plate 29, the diaphragm 12, a screw 30 passing through the plate 29 and into the upper end of the socket 25 secures the two clamping members 29 and 26 together. To prevent rotation of the clamping member 26, and a resulting twisting strain on the diaphragms, when the valve block 13 is removed, we provide guiding ears 31 on each side of the stem portion of the clamping member 26, which ears operate in slots in the bottom wall of the casing 10, therebypreventing rotation of the clamping member 26 and at the same time permitting a free vertical movement thereof.
The valve is lowered toward open position by the weight of the plate 29 and the clamping member which, however, may be supplemented by a coiled spring 32 interposed between the top of the plate 29 and an adjustable plug 33, which plug is provided with a vent port 34 to prevent the trapping of air in the chamber above the diaphragm.
In operation, the gas passes into the casing 1 through the connection 2 and out through the valve 4 and the connection 3. As long as the gas flows normally the valve will remain open under its 'bias towards open position. If, however, for any reason the pressure on the delivery side should build up, a back pressure will be created which, passing through the opening 9 intoA the chamber beneath the diaphragm, will tend to raise the diaphragm and move the valve toward closed position, thereby shutting down or off the flow of gas through the valve until the pressureon the supply side has dropped, which droppin pres' sure will permit the escape of ressure from the diaphragm chamber there y again permitting the valve to be moved towards open position.
By the construction of the removable valve block 13 with its renewable face 14 we are enabled, by the simple expedient of removing the block 20, to remove the block 13 and renew the face whenever thisA face becomes so worn as to not operate satisfactorily. Furthermore,A -by the provision of the guide formed b the web 23 and the guiding portion 21 ofiithe stem a movement of the valve in a straight line is insured so that it will always seat in exactly the same point thereby preventing the fac^ of the valve from becoming roughened. The valve, as a matter of fact, is guided'at two points, namely, at the point where the stem portion of the clampin member 26 passes through the casing 10 and at the web 23. By the squaring of the portion 21 and passing the same through a circular opening an absolute uide for the stem is provided at this point wlth a minimum of friction.
We claim as our invention:
A pressure regulator comprising a casing, a diaphragm mounted in said casing, a pair of clamping plates mounted one on each side of said diaphragm, the lower plate having a guiding extension thereon and operating in an opening in the casing, a valve casing connected to said regulator casing, a diaphragm clamped between said valve and regulator casing, a valve stem threaded into said guiding extension and having clamping means between which and the guiding extension the second mentioned diaphragm is clamped, the bottom end of said stem b'eing screw threaded, a downwardly opening valve threaded on said end and having a renewable face, and a relatively thick transverse web in said valve casing approximately midway between the second mentioned diaphragm and the valve when the valve is in closed position and having a round opening therein through which said valve stem passes, that portion of the stem passing through said opening being rectangular in cross section, the valve casing having an opening in alignment with the ,lower end of the valve stem and of a diameter greater than the downwardly opening valve, and a removable plug arranged in said opening in said valve casing having inlet and outlet openings so arranged that piping connected thereto will not interfere with the ready removal of said plug.
In witness whereof, we have hereunto set our hands at Anderson, Indiana, this 18th day of November, A. D. one thousand nine hundred and twenty six.
FLOYD GAUNT. MYRoN B. REYNOLDS. RALPH o. HUGHES.
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|U.S. Classification||137/505.36, 251/363, 251/335.2, 251/357, 251/318|
|International Classification||G05D16/06, G05D16/04|