US389082A - Walter maesh jackson - Google Patents

Description

(No Model.)

W. M. JACKSON.

PRESSURE REGULATOR FOR AIR, GAS, STEAM, 0R LIQUIDS.

Patented Sept. 4, 1888.

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PRESSURE-REGULATOR FOR AIR, GAS, STEAM, OR LlQUlDS.

SPECIFICATION forming part of Letters Patent No. 389,082, dated September 4, 1888.

Application filed February 7, 1838. Serial No. 263.234. (No modeLl To aZZ whom it may concern:

Be it known that I, WALTER Mnnsn J ACK- SON, of New York, in the county of New York and State of New York, have invented certain new and useful Improvements in Pressure- Regulators for Air, Gas, Steam, or Liquids; 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.

My invention relates to an improvement in pressure regulators for air, gas, steam, or liquids.

The object of my present invention is to provide a pressure-regulator that is of simple construction, and which may he graduated to accurately control the flow of gas, steam, air, or liquids through it, and by its automatic action reduce pressure at the (leliveryorifice of the machine to any predetermined degree.

A further object is to producealiqnid, gas, or air pressure regulator which will automatically adjust its valve to control the delivery of fluids passing through it, so as to afford constant pressure of a predetermined degree in aservice-pipe that leads the fluid to a point of consumption, compensating instantly for alterations of pressure induced by inequalities in rate of consumption.

\Vit-h these objects in view my invention consists in certain features of construction and combinations of parts that will be hereinafter described, and pointed out in the claims.

Referring to the accompanying drawing, which is a side elevation in section of the device, A represents a tube or pipe, which is bent at A to produce two vertical legs, A A, that are threaded on their upper ends. The leg A is shorter than the parallel leg A and has a chamber, I, of enlarged diameter, attached thereto by its interiorly-ihreaded lower end, a.

On one side of thechamber I, near its upper end, a tubular outlet, F, is integrally formed, which is tapped to afford screw threadconnection for the pipe I", that leads to the point of consumption, it being the service-pipe into which gas or otherfluid is discharged from the pressure'regnlator when it is in use.

At the top of the chamber I, preferably concentric with its cylindrical wall, an inlet is made, which is threaded on its outer surface for the reception of a cylindrical valve-chest, H, that hasa tapped orifice formed at its lower end to engage and form a tight joint with the threaded tubular neck or inlet 0, as shown. The free upper end of the annular wall of the inlet 0 is faced off to produce a true surface or seat, 01, the use of which will be explained. An inlet-passage, E, is formed on the side of the valve-chest H, and a supply-pipe, E, is secured thereto by threaded connection or other suitable means. The open top end of the valve-chest H is closed by the removable bonnet H, which is preferably made to have screw-thread connection with the chest.

In the chamber I a cylindrical float, B, is placed. This is open at its lower end and closed at thetop, which latter is provided with a stem, 0 that extends vertically from a point central to the side wall of the float. The cylindrical inverted cup or float B may be made of metal or other material. Its component material should be of less specific gravity than the liquid, G, which is introduced in the legs A A until a portion of the chamber I is filled,

it being important that the fluid should not at any time rise so as to flow through the outletopening F.

A preferred liquid for use in the bent tube A is mercury, and if it is used the floating cylinder B may be made of sheet metal sufficiently light to float buoyantly.

The top of the tubular leg A is closed par tially by the screw-cap K, which is perforated so as to afford a small air-passage, b, thus breaking the seal over the contained fluid and allowing free atmospheric pressure thereon.

Upon the valve-stem c" a disk-valve, c, is atfixed at a proper point above the valve-scat d, the length of the stem being proportioned so as to hold the valve off of the seat when the tubes A A and chamber I are properly charged with mercury or other suitableliquid. A short stem, 0 is made to vertically project from the upper side of the valve in axial line with the valve-stem 0", the upper stem being intended to support in place several weights, D, that are in disk form, perforated to slide over the stem 0 and rest upon and above the valve 0.

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In order to hold the valve in a vertical position, its lower surface may be furnished with depending wings c, which radiate at spaced intervals from the stem 0', to which they are also attached. The side edges of the wings,having loose engagement with the gas-inlet neck a, will hold the valve and float concentric with the cylindrical wall of the chamber A.

\Vhen the pressure-regulator is properly connected by the pipe E to a source of supply-as, for instance, if gas is to be passed through the device to reduce its pressure before consumption-the pipe IE will be attached to a main conduit, the outlet-pipe F being extended as a house-service pipe to furnish gas for consumption in a dwelling or other building. Now in service the maximum pressure of gas from pipe Eis counterbalanced by the weight of the vertical column of liquid or mercury, G, and the valve 0 held off of its seat, and to bring the valve closer to its seat d a proper amount of weight, D, is placed on it, this graduation of Weight being made pro portional to the maximum use of gas from the service-pipe F, so as to supply sufficientprcssurc.

It will be understood from the above description that in no event will the valve 0 totally close or rest on its seat when the device is adjusted for use as a pressure-regulator.

When the consumption of gas is cut partially oft, the pressure on the float B and exposed liquid, G, in chamber I will increase proportionately and the valve 0 be depressed to ad just the supply to the consumption. An increase of consumption will diminish pressure above the float and open the valve, these alterations being effected solely by the alternating height of the liquid columns in the tubular legs A A, and consequent change of counterbalance-weight in the outer leg, A

The pressure-regulator herein described may be used to control the pressure of liquids, whether they are in fluid or gaseous form, and can be arranged to have any desired range of adj ustmcnt by proper proportion of its parts for the service, it being adapted to regulate pressure in the largest mains as well as in small service-pipes.

Many slight changes in form of the several parts may be made in carrying into effect the principles embodied in this invention without departure from its'legitimate scope; hence I do not wish to limit myself to the exact forms and combinations of parts herein shown, but,

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

1. The combination, with a liquid-holder consisting of two vertical communicating sections, a float-chamber attached to and communicating with one of said sections, a removable perforated cap upon the other section, a valve-chamber in communication with said floatchamber, an inlet-pipe leading to the valve-chamber, and an outlet-pipe leading from the float-chamber, of the inverted-cupshaped float located within the float-chamber and provided with an upwardly-projecting stem, a valve located within the valve-chamher and attached to said upwardly-projecting stem, and weights adapted to rest upon the stem and valves, substantially as set forth.

2. The combination, with a liquidholder consisting of two vertical communicating sections, a removable perforated cap on one section, a float-chamber forming an enlarged extension of the other chamber, the upper end of this chamber terminating in a restricted neck the extreme end of which forms a valveseat, a valve-chamber attached to this neck, an inlet-pipe leading to the valve-chamber, and an outlet-pipe leading from the floatchamber, of a float located within the floatchamber and provided with an upwardly-pro jecting stem, a valve attached to the stem, and removable weights, substantially as set forth.

3. The combination,with the U-shaped tube, the float-chamber attached to the shorter arm of the tube, and a valve-chamber attached to the upper end of the float-chamber, of the float having the upwardly-projecting stem, and the valve and weights mounted on the stem, substantially as set forth.

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

\VALTER MARSH JACKSON.

Witnesses:

THOMAS R. BROWN, GEO. T. GADEN.

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