US401628A - Gas-governor - Google Patents

Description

(No Model.)

H. J. BELL.

GAS GOVERNOR.

No. 401,628. Patented Apr. 16, 1889.

UNITED STATES PATENT OFFICE.

HAROLD J. BELL, OF GLOUCESTER CITY, NEWV JERSEY, ASSIGNOR TO THE VVEL SBACH INCANDESCENT GAS LIGHT COMPANY, OF NEW JERSEY.

GAS-=GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 401,628, dated April 16, 1889.

Applicati n fi e January 16, 1889- Serial No. 296,517. (No model.)

To coZZ whom it may concern:

Be it known that I, HAROLD J. BELL, a citizen of the United States, residing at Gloucester City, in the county of Camden and State of New Jersey, have invented new and useful Improvements in Gas-Governors, of which the following is a specification.

This invention relates to gas governors adapted for attachment to gas-meters or at other points in a building and capable of being applied to chandeliers of large size.

The invention consists in the construction and combination of parts in a gas-governor, as hereinafter described and claimed.

In the annexed drawing, illustrating the invention, is shown a central vertical section of a gas-governor embodying my improvements.

The letter A design ates the governor-casing, which consists of a lower shell or basin, 1, an upper shell, 2, and an intermediate shell, 3, the said shells 2 and 3 being arranged to form the upper part or top of the casing. These shells are connected by screwthreads, soldering, or otherwise in any convenient manner.

In the bottom of the lower shell, 1, is a central circular opening, 4, that fits over and around the vertical tubular arm 5 of a gasfitting, B, which connects with the gas-supply, said tubular arm being provided with a shoulder, 6, on which the governor rests. The gasfitting B has an inlet, 7, in line with the tubular arm 5, and an outlet, 8, at an angle thereto. The tubular arm 5 forms a gas-exit tube, which extends very nearly to the top of the lower shell, 1, of the governor-casing.

Immediately above the inlet 7 is a centrallyperforated.diaphragm, 9, from which rises a tube, 10, that is inclosed by and concentric with the gas-exit tube 5, which it equals in length.

In the central aperture of the diaphragm 9 is fixed a vertical gas-inlet tube, 11, having a closed top piece, 12, provided with lateral gaseXits 13, as shown. The gas-inlet tube 11 is surrounded by a tubular valve, 14, having near its upper end a valve-lip, 15, which seats against the top piece, 12, of the gasinlet tube. The upper end of the tubular valve lat is provided with an enlarged tubular valve-chamber, 16, having lateral gas-exits 17, which discharge beneath a bell-shaped float, 18, that is attached to and surrounds the gas chamber and valve. The bell-shaped float 18 dips into a sealing-liquid (preferably glycerine) conained in the lower shell or basin of the governor-casing. This liquid surrounds the gasexit tube 5 and passes through a shorthorizontal tube, 19, that connects the concentric tubes 5 and 10, into the latter tube, thus surrounding, also, the lower portion of the gasinlet tube 11 and sealing the lower end of the tubular valve 14, which surrounds the inlettube. On the lower part of the gas-inlet tube 11 is a ring or shoulder, 20, which serves as a guide for the lower end of the tubular valve.

By observing the course of the arrows in the drawing it will be seen that the gas enters the governor through the tube 11, passing thencethrough the openings 13 and over the lowered valve-lip 15 into the gas-chamber 16, thence through the openings 17 into the space beneath the bellshaped float 18, and out through the exit-tube 5 to the outlet 8 of the gas-fitting on which the governor is supported. The pressure of gas beneath the bell-shaped float 18 causes the said float to rise and carry with it the gas-chamber 16 and tubular valve 14:, thereby causing the valve-lip 15 to approach its seat on the top piece, 12, of the gasinlet tube 11, thus controlling the flow of gas through the governor.

At the upper part of the governor-casing, above the bell-shaped float 18, is located an air-valve comprising a bell-shaped float, 21, having a stem, 22, which is passed through an air-passage, 23, in the top of the shell 3. To the outer portion of the stem 22 is secured a perforated cap, 24, by means of a nut, 25, on the screw-threaded end of said stem. This perforated cap 24 normally rests on the top of the shell 3, thereby suspending the bellshaped float 21 and leaving the passage 23 open for the flow of air into and from the governor-casing above the sealed bell-shaped float 18 of the gas-valve. On the stem 22, below the top of the shell 3, is a washer, 26, which serves to close the air-passage when the bellshaped float 21 is raised sufficiently. It will be seen that'the air contained inthe governorcasing above and around the bell-shaped float l8 and Within the bell-shaped float 21 serves as an air-cushion to counterbalance the lower bell-shaped float, 18, and prevent the sealingliquid from rising around the said float and escaping at the air-valve.

Should the pressure of gas in the governor become excessive, the bell-shaped float 18 will rise sufficiently to close the tubular valve 14, and at the same time the pressure of air in the upper part of the governor-casing will raise the air-valve float 21, thereby closing the air-valve and preventing any escape of liquid at the air-opening.

I make no claim in this application to an air-valve of the construction shown, having described and claimed the same in a concurrent application, Serial No. 296,516. In that application the gas-governor is of the same general construction as that herein described, except that the tubular gas-valve is seated at two points, but has no liquid seal, while in the present case the tubular valveis provided with a liquid seal and is seated at only one point. In both governors the flow of gas is regulated by a governed pressure, and leakage of the liquid seal is effectually prevented.

In a gas-governor of this construction the movable parts of the gas-valve are so arranged that a contact of gas at a right angle anywhere Within the valve is balanced by a similar contact on the opposite side, thus providing an absolutely-balanced valve of simple construction.

WVhat I claim as my invention is 1. In a gas-governor, the combination, with I the governor-casing having an air-valve in its upper part, of a gas-fitting having an inlet and an outlet and provided with concentric tubes projecting vertically into the -governor casing and connected by a short horizontal tube, a gas-inlet tube supported centrally in said fitting and provided with a closed top and lateral gas-passages, and a tubular balanced valve surrounding the gas-inlet tube and provided with a perforated gas-chamber and a bell-shaped float, substantially as described.

2. In a gas-governor, the combination, with the casing A, inlet-tube 11, tubular valve 14:, and bell-shaped float 18, of the fitting B, having an inlet and an outlet, and provided With the concentric tubes 5 and 10, connected by a tube, 19, substantially as described.

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

HAROLD J. BELL.

\Vitnesses:

WILLIAM E. BANONS, CLAUDE A. SIMPLER.

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