US1197054A - Gas-regulator. - Google Patents

Description

E. G. OFELDT.

GAS REGULATOR.

APPLICATION FILED OCT-16.1915

km Q A W WW J L T Z/ 7 m if 7 l I u w m If S f0 9 2 l/VVENTOR A tlorney Patented Sept. 5, 1916.

ERNEST G. OFELDT, F NYACK, NEW YORK.

GAS-REGULATOR.

modest.

App1ication filed October 16, 1915.

To all whom it may concern Be it known that I, ERNEST G. OFELDT, a citizen of the United States, and a resident of Nyack, in the county of Rockland and State of New York, have invented certain new and useful Improvements in Gas-Regulators; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in gas regulators and more particularly to such as are controlled by the pressure of steam from a boiler furnace, to which latter the gas is supplied as fuel,-one object of the invention being to provide a simple, light regulator, which shall be accurate in operation; not liable to leak and which will effectually prevent the commingling of steam or water with the gas in the event of breakage of the part against which the steam pressure operates.

lVith this and other objects in view the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings, Figure 1 is a sectional view of a regulator embodying my improvements, and Fig. 2 is a detail view illustrating the spacing ring.

My improved regulator comprises upper and lower convex plates 1, 2,the lower plate being made with a central hollow enlargement 3 having an inlet 1 for steam conducted from a boiler by means of suitable pipe connections, not shown. The upper plate 1 is formed with tubular enlargement 5 forming a gas outlet duct adapted for the reception of a suitable pipe connection. The upper plate 1 is formed with an upwardly projecting cylindrical portion 6 provided in its side wall with a gas inlet nipple 7 adapted for attachment of a suitable gas inlet pipe.

Two metal diaphragms 8-9 are disposed between the plates and spaced apart, one above the other. The central portions of these diaphragms are held properly spaced apart by means of a spacing block 10 rivcted to the upper diaphragm 8, while the peripheral portions of said diaphragms are located between the parallel peripheral portions of the plates 1-2 of the valve casing and said peripheral portions of the dia- Specification of Letters Patent.

Patented Sept. 5, 1216.

Serial No. 56,272.

phragms are separated by a spacing ring 11 disposed between them. Suitable fastening means will be provided to secure the plate 12, spacing ring and diaphragms in place. The spacing ring is made with one or more radial holes 12 for a purpose hereinafter explained. The upper plate 1 is provided at the lower end of the cylindrical extension 6 with an annular flange formmg a valve seat 13 against which a valve 1d resting on the upper diaphragm 8, may seat.

The upper end of the cylindrical extension is made with a head 15 having an ex ternally threaded portion 16 and a threaded opening, through which latter the upper enlarged, threaded portion 17 of a sleeve 18 is adjustable. The sleeve 17-18 serves as a guide for the stem 19 of valve 14: and the '1 upper end of said stem passes freely through a nut 20 formed upon the head 17 of sleeve 18. A spring 21 encircles the sleeve 18 and bears at its respective ends against the head 17 of said sleeve and the valve 14,-adjustment of the tension of said spring being effected by adjustment of the head 17 of the sleeve 18 through the threaded opening in the head of the cylindrical extension 6, and retained in any de sired adjustment by means of a jam nut 22. The upper end of the valve stem is threaded for the reception of a nut 20, whereby means are provided to take the strain of the spring off the diaphragms when the regulator is not in use. The upper portions of the sleeve head 17 and valve stem are inclosed by a cap 23 threaded on the portion 16 of the head of the cylirulrical extension 6 and this cap may be made with a nut 24. The cap serves, not only to protect the projecting parts at the upper end of the cylindrical extension, but it also serves to prevent leakage of gas from the regulator.

The upper diaphragm 8, receives the gas pressure, while the pressure of the steam is against the lower diaphragm. Should the lower diaphragm break, steam or water would enter the chamber between the diaphragms and find an exit through the holes or ducts 12 in the spacing ring,-thus preventing steam or water from reaching the gas chamber over the upper diaphragm 8.

Slight changes might be made in the details of construction of my invention without departing from the spirit thereof or limiting its scope and hence I do not wish to restrict myself to the precise details herein set forth.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. In a gas regulator, the combination of a casing comprising upper and lower convex plates and a cylindrical extension on the upper plate, said upper plate "a'ndcylindrical extension having gas outlet and inlet ports respectively and the lower plate having a fluid pressure inlet port, a valve seat on the upper plate, two diaphragms between said plates and spaced apart, a perforated ring between the peripheral portions of the diaphragms, a valve mounted on the upper diaphragm, a stem on said valve, a guide sleeve for said stem in the cylindrical extension, a spring between said guide sleeve and the valve, and means permitting adjustment of said guide sleeve to adjust the tension of said spring. j

2. In a gas regulator, the combination of a casing having a cylindrical extension, and a valve seat, a diaphragm in said casing, gas inlet and outlet ports above said diaphragm, a fluid pressure inlet port below the diaphragm, a valve mounted upon said diaphragm and having a stem, a sleeve having a part threaded through the head of the cylindrical extension and through which the valve stem passes, a spring between said guide sleeve and the valve, and means permitting adjustment of said guide sleeve.

3. In a gas regulator, the combination of a casing having a cylindrical extension, and a valve seat,'a diaphragm in said casing, gas inlet and outlet ports above said diaphragm, a fluid pressure inletport below spacing block between said diaphragms, a

perforated ring between the peripheral portions of said diaphragms, a valve mounted on the upper diaphragm, a stem on said valve, a guide sleeve adjustably mounted in the casing, a spring between said sleeve and the valve, and a nut threaded on the upper end of the valve stem, and means for admitting pressure under the lower diaphragm.

5. In a gas regulator, the combination with a casing, having a valve seat therein, of two diaphragms spaced apart, a central spacing block between said diaphragms and [lVGtGCl to one of them, a perforated spacing ring between the peripheral portions of said diaphragms, a valve resting on the upper diaphragms over said spacing block, a spring normally pressing the valve away from its seat, and means for admitting pressure under. the lower diaphragm.

In testimony whereof, I have signed this specification in the presence of two subscribing witnesses.

ERNEST G. OFELDT. Witnesses;

E. L. F. MGNULTY, W. U. SPROTT.

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

Washington, D. C."

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