US396259A - Gas-regulating burner - Google Patents

Description

(No Model.)

* H. J. BELL.

GAS REGULATING BURNER.

No. 396,259. Patented Jan. 15, 1889.

Wz'i'neseea. Wfim UNITED STATES PATENT @FFICE.

HAROLD .I. BELL, OF GLOUCESTER, NEI" JERSEY, ASSIGNOR TO THE IVELS- BACI-I IN YANDESCENT GAS LIGHT COMPANY, OF NEV JERSEY.-

GAS-REGULATING BURNER.

SPECIFICATION forming part of Letters Patent No. 396,259, dated January 15, 1889.

Application filed May 19 1888.

To all whom it may concern.-

Be it known that I, HAROLD J. BELL, a citi zen of the United States, residing at Gloucester, in the county of Camden and State of New Jersey, have invented new and useful Improvements in Gas-Regulating Burners, of

which the following is a specification.

My invention relates to a gas-governor or gas-regulating burner; and it consists in the combination of a base or shell screw-threaded for attachment to a gas-fixture and having a central gas-passage with a contracted valveseat and an expanded float-chamber, said floatchamber being surrounded at the top by a countersunk, outwardly-beveled, and screwthreaded annular recess, a cap or pillar arranged in said annular recess and having a central gas-passage provided with an adjusting screw or screws to regulate the quantity of gas admitted to a burner supported on the upper end of said pillar, and a float-valve located between the base and pillar and having a hollow stem and valve operating in the gaspassage of the base above the valve-seat, to automatically regulate the pressure of gas, said base and pillar being further provided with vents that communicate with the floatehamber, to relieve any leakage of gas that may occur around the float and valve and conduct it to the space above the adjusting screw or screws, whence it passes to the burner.

In the annexed drawings, Figure 1 is avertical section of a gas-regulating burner embodying myinvention. Fig. :2 is a horizontal section on the line a: :r of Fig. 1.

The numeral 1 designates a metallic shell which forms the base of the gas-regulating device. The shell or base 1 is formed at its lower end with an internally-screw-tlireaded recess, 2, for engaging a gas-fixture. Above the recess 2 is a central vertical gas-passage, 3, the lower end of which is contracted to form a valve-seat, 1, which may be beveled, as shown.

In the upper end of the shell 1 is an expanded float-chamber, 5, which communicates with the central gas-passage. The upper edge of this float-chamber is surrounded by an annular countersunk recess, 6, the inner wall of which is beveled downward and outward,

Serial No. 274,363. (No model.)

while the outer wall is vertical and internally screw-threaded.

A spirally-coiled s n'ing, 7, is placed in the float-chamber 5 around the upper end of the vertical gas-passage. This spring 7 supports a float-valve, S, which consists of a depending tubular stem, 9, a centrally-perforated floatdisk, 10, formed on or attached to the upper end of said stem, and a valve, 11, on the lower end of said stem, which is provided with lat- 6o eral perforations or gas-inlets 12 immediately above said valve. The tubular valve-stem 9 is provided above its lateral gas-inlets 12 with an annular bead or shoulder, 13, which is very nearly the same diameter as the central gaspassage, 3, and is intended to prevent the leakage of gas into the lower part of the floatchamber 5, beneath the float.

The top of the float-chamber 5 is formed by a metal cap or pillar, 14, which is screwed into the annular recess 0, that surrounds said chamber. This cap or pillar lat has a central vertical gas-passage, 15, which communicates with the float-chamber 5 and also with the tubular stem 9 of the float-valve. The quantity of gas passed through this gas-passage 15 may be controlled either by means of a single adjustable screw, 16, or a pair of adjustable screws, 17, located end to end. \Vhen. using an ordinary gas-burner, a single screw, 16, will be sutfieient, and may be located near the lower end of the burner. If an atmospheric-gas burner is used, two screws, as 17, will be preferable, for the reason that they afford a more accurate means of adjusting the 8 5 quantity of gas to suit the capacity of the airinlets 18, with which the atmospheric gas burner 19 is provided. The two screws 17 should be located not far below the air-inlets 18, so as to maintain the full pressure of gas nearly to the point where it expands in contact with the incoming air, thus securing a proper mixture.

In the cap or pillar 1a is a small by-passage or Vent, 20, which leads from the annular recess 6 to the burner, as shown in full lines in Fig. 1; or, as shown by dotted lines, it may lead to the gas-passage 15, above the screw 16, when the screws 17 are not used. I11 the base 1 is formed a vent, 21, leading from the float- 10o chamber 5 into the recess 3, opposite the lower end of the vent 20, and through these vents 20 and 21 any leakage of gas into the floatchamber below the float is removed.

The upper face of the float 10 is provided with projections 22, which prevent the float from rising into close contact with the lower end of the pillar 14, thus leaving a space for the access of between said float and pillar.

It will be seen that the float-valve 8 is normally supported by the spirally-coiled spring 7 through which the stem of said float-valve hangs, with the valve 11 above the valve-seat 4, but not in contact therewith. las passes through the valve-seat 4 into the lower end of the passage 3, thence through the inlets 1.2 into the tubular stem 9, and through the gaspassage 15 to the burner. The quantity of gas admitted to the burner is controlled by the screw 16 or screws 17, as the case may be, to suit the capacity of the burner. It is obvious that in passing through the tubular stem 9 and passage 15 the gas will expand into the space above the float l0, and should the pressure of gas be excessive it will exert suflicient force on the upper face of the float to press it down in the chamber 5, and so carry the valve 11 downward into closer proximity with the valve-seat i, thereby diminishing the space between said valve and its seat, and consequently decreasing the flow of gas through the tubular stem 9, with the effect of decreasing its pressure in the passage 15, that leads to the burner. The spring 7 furnishes asensitive support for the float-valve 8 and enables it to respond readily to any variations in the gas-pressure. The shoulder 13 on the tubular valvestem 9 compels the gas to pass through said stem to the space above the float, and as any leakage of into the lower part of the float-chamber will be removed by its vents 20 and 21 the action of the spring-sil y ported float will be unobstructed.

The devices for regulating the quantity and pressure of gas, as described, constitute an automatic volumetric gas-governor which is simple and reliable and easily adjusted to the requirements of different burners.

hat I claim is- 1. In a gas governor or gas regulating burner, the combination of a base having a central gas-passage, a valve'seat, and a floatchamber, a cap or pillar attached to the upper end of said base and having a central gaspassage provided wit-h an adjustable screw or screws for regulating the quantity of gas admitted to the burner, a float-valve consisting of a disk having a tubular stem perforated near its lower end and carryin a valve on its lower end, and a spring, located in the floatchamber to normally support said float-valve,

substantially as described.

2. In a gasgovernor or gas-regulating burner, the combination of a base adapted to be attached to a gas-fixture and having a central gaspassage with a contracted valve-seat and an expanded float-chan'iber, said floatchamber being surrounded by an annular recess, a cap or pillar engaged in said recess and having a central gas-passage provided with an adjusting screw or screws to control the quantity of gas admitted to a burner, said base and pillar being provided with vents communicating with the annular recess, and a normally spring-supported float-valve located between the base and pillar and having a hollow laterally-perforated stem and valve operating in the passage of the base above the valve-seat to automatically regulate the pressure of gas, substantially as described.

3. In a gas -governor or gas regulating burner, the combination of a base having a central gas-passage, a valve-seat, and a floatchamber, a cap or pillar having a central gaspassage provided with means for controlling the quantity of gas admitted to the burner, and a normally spring-supported float-disk located in the float-chamber between the central gas-passage of said base and cap, said float being provided with a central perforation and a tubular laterally-perforated stem carrying on its lower end a valve to seat downward in the valve-scat of the gas-passage in the base, whereby gas admitted through said tubular stem will expand on the upper face of the float-disk and said disk be forced down by an excessive pressure to lower the valve and diminish the flow of gas, substantially as described.

l. In a gasgovernor or regulating burner, the combination of the base 1, having central gas-passage,3, valve-seat at, float-chamber 5, annular recess (3, and vent 21, the cap or pillar 14, having a central gas-passage, v15, provided with an adjusting screw or screws and vent 20, the float-valve 8, consisting of a centrally-perforated disk, 10, and perforated tubular stem 9, having valve 1.1, gas-inlets 12, and shoulder 13, and the spring 7 for normally supporting said float-valve, substan tia-lly as described.

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

HAROLD J. BELL.

\Vitnesses:

WALDRoN SHAPLEIGH, ROBERT S. CLYMER.

ITO

Images