US880402A - Pressure-regulator. - Google Patents

Description

'No. 880,402. PATENTED FEB. 25, 1908.

M. G. REYNOLDS.

PRESSURE REGULATOR.

APPLICATION FILED SEPT. 23 1907.

9 lll'l 9 M iii A? iiu 7 7 INVENTOR film/i ffiy/mlzis WAMWW MIRON G. REYNOLDS, OF ANDERSON, INDIANA.

PRESSURE -RE GULATOR.

Specification of Letters Patent.

Application filed September 23, 1907. Serial No. 394.151.

Patented Feb. 26,1908.

' tors, of which the following is a specification,

reference being had therein to the accompanying drawing.

This invention relates to a pressure regulator, and particularly to a construction adapted to maintain a uniform ressure in the service pipes independent of t e fluctuation of the pressure 1n the main.

The invention has for an object to provide a construction of regulator embodying a controlling diaphragm in connection with a balancmg dia hragm carried by a valved piston extending from the controlling diaphragm to an intake valve from the main to the service pipes.

Other and further objects and advantages of the invention will be hereinafter. fully set forth and the novel features thereof defined by the appended claims.

In the drawing :Figure 1 is a vertical section through the regulator; Fig. 2 is a detail perspective of the lower diaphra m plate; Fig. 3 is a similar view of the va ve stem and valve; Fig. 4 is a perspective of the lower diaphragm.

Like numerals refer to like parts in the several figures of the drawing.

Referring to the drawing, the numeral 1 designates the body of the valve casing which is provided with an inlet connection 2 and an. outlet connection 3, these being in communication with each other through the ort 4 having a valve seat therein. This body is also provided with a passage 5 extending upward from the outlet port 3 and communicating 6 through the 7. This case is provided with a top plate 8 secured thereto by bolts or other similar fastenings 9, and between the top and bottom plates of this case the u per diaphragm 10 is secured in position. he top plate of the case is rovided with the apertured collar 11 in whic a threaded vent plug 12 is secured and has an aperture 13 extending therethrough. Above the diaphragm 10 is a pressure plate 14 secured thereto by means of the screw 15 extending through the plate 14 into the lower diaphragm plate, 16 which is provided with the threaded aperwith the opening or passage ottom of the diaphragm case" ture 17 to receive said screw and is dis osed beneath the diaphragm 10. The lbwer diaphragm plate 16 is provided with a depending extension 18 which is slidingly mounted in the aiperture 19 through the bottom 7 of the iaphragm casing and is connected with the balancing diaphragm 20 by means of the valve stem 21. This stem is provided at its upper end with the threaded portion 22 and a collar 23, said collar being adapted to clamp the balancing diaphragm in contact with the extension 18. TlllS diaphragm is also provided with the aperture 25 in alinement with the ressure passage 5 extending through the va 've case to the diaphragm. The lower end of the valve stem 21 is provided with a valve 26 of any desired construction, preferably of convex conformation, to engage the edge of the seat in the casing and provided at its extended end with a slot 27 by which it may be conveniently screwed into its connection with the lower diaphragm plate In theoperation of the invention, when-a large volume of fluid is passing thro h the valve the fiow or passage to the regu ating dia hragm passes at an angle to the lower en of this passage producing a suction which reduces the pressure in the regulating diaphragm chamber and effects a higher pressure at the'outlet of the regulator. This increase in pressure when a large volume is being used overcomes the friction in any connected meter to the house piping thus giving a more uniform pressure at all times to the burner. In order to prevent an increase of the inlet pressure from pushing the valve open and affecting the'low pressure in the service pipe theva ve is balanced by the diaphragm connected to the stem thereof which is of the same area as the gas orifice so that the inlet pressure thereon Will exert the same pressure that is exerted upon the valve to open it thus effecting an equalization of the pressure through the regulating diaphragm.

n order to prevent fluid from passing upward around the valve stem and into the upper diaphragm chamber the balancing diaphragm is used and the shouldered. valve stem provides means for effectuall connecting this dia hragm with the regufating diaphraym. e upper and lower diaphragms are therefore connected together and with the valve, While the upper diaphragm is in communication with the low ressure side of the valve so that an excess 0 pressure upon this side can force upward the regulating diaphragm and close the valve, while under other conditions the valve is regulated automatically in its movement so as to produce a uniform pressure in the house service pi e and reduce it from the fluctuations of the street main connection therewith.

Having described my invention and set forth its merits, what I claim and desire to secure by Letters Patent is 1. A pressure regulator comprising a valve casing, a regulating diaphragm and casing communicating with the outlet of the valve casing, a valve within the valve casing connected to the regulating diaphragm, and a balancing diaphragm connected to the stem of said valve and to its casing to be exposed to the inlet pressure thereof.

2. In a pressure regulator, the combination with a diaphragm and its casing, of a valve connected to said diaphragm, and a valve casing having a seat for said valve and provided with a passage extended from the delivery side of said seat to said diaphragm casing.

3. n a pressure regulator, the combination with a diaphragm and its casing, of a valve connected with said diaphragm and having a spherical contact face, and a valve casing having a seat disposed above said face to contact therewith and provided with a passage extending from the delivery side of said seat to said'diaphragm casin 4. In a pressure regulator, a va ve casing,

' an abutting diaphragm casing communicating with the outlet side thereof, a plate disposed upon the under face of the diaphragm, a valve having its stem connected to said plate, and a balancing diaphragm secured etWeen the abutting faces of the valve and regulator casings and connected to said stem;

5. In a pressure regulator, a casing provided with a diaphragm therein, a valve casing connected to said regulator casing, a plate beneath said diaphragm and secured thereto, a guiding extension from said plate having a threaded aperture, a valve communicating with a port in the valve casing and provided with a shouldered stem'having a threaded end, and a balancing diaphragm clamped to said valve. stem'between said extension and shoulder thereon,

6. In a pressure regulator, a valve casing provided with a seat, a downwardly opening valve in said casing andprovided with a stem, a re ulator diaphragm connected with said stem ior actuating the same, a communicating passage from the outlet of said valve casing to the diaphragm chamber, and a balancing diaphragm extended across the top of the valve casing and secured to said stem and between the valve casing and casing of the regulator diaphragm to be exposed to the inlet pressure.

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

MIRON G. REYNOLDS. Witnesses: Y

Tnos. BAGOT,

CHAS. K. BAGOT.

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