US713496A - Gas-pressure regulator. - Google Patents

Description

No. 7l3,496. Patented Nov. II, I902.

.F. .1. ooT.

GAS PRESSURE REGULATOR.

(Application filed June 24,1901.)

(No Model.)

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UNITED STATES PATENT OFFICE.

FRANK JARED ROOT, OF BINGHAMTON, NEW YORK.

GAS-PRESSURE REGULATOR.

SEECIFICATIQN forming part of Letters Patent No. 713,496, dated November 11, 1902.

Application filed June 24,1901. Serial No. 65,745. (No modelJ I To all whmn it 772/67] concern:

Be it known that I, FRANK JARED Roor, a citizen of the United States, residing at Binghamton, New York, have made certain new and useful Improvements in Gas-Pressure Regulators, of which the following is a full, clear, and exact description.

My invention relates to fluid-pressure regulators, and more particularly to gas-pressure regulators for regulating and controlling the tension of gases.

My invention further relates to a gas-tension regulator operated by steam, compressed air, or other gasor vapor, wherein the automaticity applies to the control of the tension of the gas and also to any variation of pressure in the operating medium, whether the sameis steam orother gas or vapor. Furthermore, my invention operates as an automatic regulation of the ad mixture of gases or vapors where the gas to be controlled is mixed with the gas the pressure of which is employed to control the gas-tension.

A specified adaptation of my invention is shown in a joint application of myself and W. S. Brandt, filed June 24, 1901, Serial No. 62,755, wherein this device is employed in the production of pyroligneous acid. The process therein shown would I lack in effectiveness were not a device of this character employed.

In the following description of my invention I shall show a typical adaptation of the same wherein a gas is to, be controlled as to tension and is to be mixed as drawn off with a specified amount of steam. Such description will illustrate the operation of my invention, and at the same time serve to indicate its adaptation to analogous uses.

Referring to the drawings herewith, in which like characters of reference indicate like parts, Figure 1 is an elevation in perspective. Fig. 2 is a detail section of my steam-injector. Fig. 3 is a detail elevation of my chain-adjuster.

The principal parts of my device are as follows:

1 is a gas-supply pipe.

2 is a steam-supply pipe.

3 is a closed tank.

4 is a tank open at the top, carryinga float 5.

6 is a pipe connecting the bottoms of the tanks 3 and 4.

' 1 through the pipe 7.

7 is a pipe connecting the gas-supply pipe 1 with the top of the tank 3.

S isa hand-valve in the steam-supply pipe 2.

9 is a balanced-valve on the steam-pipe 2.

10 is an exit-pipe for the gas and steam.

11 is a steam-jet exhauster interposed between the gas-supply pipe 1 and the exit-pipe 12 is a chain or cable provided with an adjuster 17,connecting the balanced-valve 9 with the float 5.

The operation of the device is as follows: Vent having been given to the tank 3 by uncoupling the pipe 7, sufficient water or other liquid is poured into the tank 4 to half fill the tanks 3 and 4. The two tanks being set upon the same plane, the liquid will come to a common level by flowing through the pipe 6, so that each tank is filled half full. The vent of the pipe 7 is then closed, the float 5 put in place, the chain or cable 12 properly adjusted, and the device is ready for operation. The hand-valve 8 is opened to give the maximum supply of steam. The exhauster 11 at once reduces the gas-tension in the pipe 1, which brings the tension of the air in the top of the tank 3 to the same as that in pipe This causes the Water to rise in tank 3 and fall in tank 4 by passing through the piped, due to atmospheric pressure, until the difference of level is, say, six inches-that is, the water rising three inches above the common level in tank 3 and falling three inches below the common level in tank 4. This results in the float 5 falling and drawing the cable 12 over the pulleys 13, thus raising the weighted arm of the balanced valve 9 and throttling the steam in the pipe 10. The float 5 is held in position and rendered easy in action by having a tubular guide 14, which takes over a fixed central rod 15, and the cable 12 has its pulleys mounted upon a bracket 16, which is secured to the tank 4. This throttling 0f the steam-supply tends to allow the gas-tension in the pipe 1 (and consequently in the tank 3) to rise, with the result that water is driven back by gravity into tank 4, thus raising the float 5 and giving the balanced valve freedom to supply a greater vol u me of steam to the exhauster 11, which will down to the predetermined regulation, a regulation attained in the ordinary Way byregulation of the hand-valve 8.

In Fig. 2 I have shown the ordinary steamjet exhauster which I employ, which I find well adapted to the requirements of this apparatus.

In Fig. 3 I have shown my chain-adjuster, which consists of an ordinary turnbuckle provided with a milled nut 18, by means of which the chain or cable may be adjusted. The use of this adjuster makes it possible to make a proper adjustment of the balanced valve action Without a change of level of water in the tanks. From this it is evident that the balance is most delicate. The water-level acts as a dilferential between the gas-tension and the outside air and responds quickly and automatically to any change of gas-tension or any change of steam-pressure. Hence any increase or decrease of gas-supply creating the tension is not only met with reference to the tension, but also with reference to the quantity of steam mixed with it, thus auto-,

matically regulating the gas-tension and the admixture. On the other hand, any variation of steam-pressure is met both with reference to the gas-tension produced and the admixture.

It will be evident that any desired vapor or gas may be used in place of the steam, and it will also be evident that in place of a steamjet exhaust where the steam is mixed with the gas I may use the steam or other supply of pressure to operate any well-known device-such, for example, as a pump or ex haust-fanto control the gas-tension, and I therefore do not desire to limit myself to the specific form of exhauster shown or to a device where the steam or other supply of pressure is mixed with the gas.

Having thus described my invention and its method of operation, what I claim is- 1. In combination with a gas-supply and a steam -supply, an exhauster, a balanced valve, or other valve, governing said ex-' hauster, a closed tank for holding a body of water connected above its water-line with the gas-supply, an open tank, a float therein, a pipe connecting the two tanks below the water-line, and means for connecting said float and said balanced valve whereby variations in the gas-pressure cause variations in the water-levels in said tanks and thereby said float operates said valve, substantially as shown and described.

2. A gas-pressure regulator comprising a gas-supply, an exit-pipe and a steam-supply, an exhauster and a balanced, or other, valve governing the same,a closed tank and an open tank partially filled with water and connected below their water-line, a pipe connecting the air-space of the closed tank with the gas-supply, a float in said open tank, a chain or cable connecting it with the balanced valve, said water in said tanks acting as a difierential between the gas-tension and the steampressure and governed by the pressure of the atmosphere, substantially as and for the purposes set forth.

3. A pressure-regulator comprising a gassupply and a steam-supply, an exit-pipe for .the steam and gas, an exhauster discharging into same, a balanced valve on the steamsupply, a closed tank connected above its water-line with the gas-supply, an open tank, a float therein, a pipe connecting said tanks below the water-line, said tanks being set at a common level and partially filled with water, or other liquid, and means for connecting said float and said balanced valve whereby variations in the gas-pressure cause variations in the water-levels in said tanks and thereby said float operates said valve, substantially as and for the purposes set forth.

In witness whereof I have hereunto set my hand, in the presence of two witnesses, this 19th day of June, 1901.

. FRANK JARED ROOT. Witnesses:

W. S. .MONETT, H. O. COLLIER.

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