US330549A - beard - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

R. R. BEARD 8v W. H. OAKLEY.

FLUID PRESSURE REGULATOR..

No. 330,549. Patented Nov. 17, 1885.

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(No Model.) l 3 Sheets-Sheet 2. R'. R. BEARD 8v W. H, OAKLEY.

FLUID PRESSURE REGULATOR.

Patented Nov. 17, 1885.

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R. R. BBARD au W. H.. OAKLEY.

FLUID PRESSURE REGULATOR. No. 330,549. Patented Nov. 17, 1885.

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NITED STATES ROBERT R. REARD AND WALTER H.

OAKLEY, OE RERMONDSEY, COUNTY OF SURREY, ENGLAND. Y

FLUID-PRESSU RE REGULATOR.

SPECIFICATION forming part of Letters Patent No. 330,549, dated November 1'7, 1885.-

Application filed September 8, 1885. Serial No. 176,463, (No model.)

To all whom it may concern:

Beit known that we, ROBERT ROYOU BEARD,

of 90 Fort Road, Bermondsey, in the county Improvements in Fluid-Pressure Regulators,

of which the following is a speciiication.

The pressure-regulator which forms the subject of this invention is designed to regulate the flow of gaseous and other fluids; but the primary object we have in view is to obtain a sensitive regulator for use with the compressed gases employed for the production of the oxyhydrogen or oxycalcium light.

Our invention consists in a novel application of a quick and slow threaded screw for working automatically the delivery-valve for the iiuid.

In the accompanying drawings we have shown our invention as adapted for a compressed-gas regulator and for a steam-regulator; also for controlling the iiow of water.

Figure 1 shows in vertical section the form our invention takes for automatically regulating the delivery at a uniform pressure of compressed gas.

A is a circular bellows, formed of indiarubber or other flexible material, having a base-plate, B, to which it is attached, and a movable head, C, which is weighted as desired, to maintain the requisite pressure up- The plate B of the bellows is screwed to a casting, D, which carries at its center a valve seat, d, and has projecting from it laterally a delivery-pipe, d. d2 is a screwed socket formed in the bottom of the casting, and intended to t upon the screwed neck with which the gas-reservoir is provided. Mounted on the basep1ate B is a cylindrical case, E, which is made fast by bayonet-j oints or their equivalent to the plate, and is intended to serve as a protection to the bellows. The movable head C is fitted with a central tube, c, closed at its upper end,l and contracted at its lower end into a neck, c, which is threaded internally to receive a quickscrew, F. This screw forms the spindle of the regulating-valve f, which lits the valve-seat d, made in the casting D. Immediately above the valve a slow-thread, f is out on the valvespindle, and in a neck of the base-plate B a thread, b, is cut corresponding with the thread f on the valve-spindle. Openings are made in this neck for the passage upward of the gas into the bellows, and as the pressures of the gas vary the bellows will be caused to expand or contract, the tendency of the weighted head C being to force the bellows into the compressed state. As the weighted head descends, it will impart an axial motion to the valvespindle, and thereby cause the valve, under thev action of the screwed neck b, to recede from its valveseat, and thereby enlarge the opening for the delivery of the gas. Vhen the pressure of the gas is in excess, it will be necessary to contract the delivery-opening. This is done by the rise of the bellows-head under the excessive pressure, which rise, by giving an axial motion to the valve-spindle in the opposite direction, forces down the valve toward its seat. By this means an automatic regulation of the delivery is effected, the weight of the head being adj usted to suit the requirements of the case. The head of the bellows is fitted with a safety-valve, c, which will prevent the rupture of the bellows should the compressed gas in full force be admitted thereto.

Fig. 2 shows in vertical section our invention as adapted for the automatic regulation of the pressure of steam. In this example we have shown a double puppet-valve, f, connected by its stem to its spindle F in such a way as to allow of the rotation of the spindle to lift or depress the valve without imparting an axial motion to the valve itself. The valvespindle is formed, like that before described, as a quick-threaded screw for a pistppJAC, to slide up and down, and is furnished also witha slow screw-thread, f, which works in a central tapped hole in the bottom B of a steam-cylinder, A.y The double valve f has its seats d d in the upper and lower sides of a central chamber formed in a casting, D, whichis provided with a screwed neck, d2, for fitting onto the steamsupply pipe, and has also a screwed necfk, d', for connecting with the steam-delivery pipe. The steam is admitted to the central valvechamber, and passes out therefrom by the double valve f into asteam-space surrounding the valve-chamber, whence itis free to pass out at ICC screwed spindIeF. Inclosingthe steam-cyl-i inder and its piston is a cyliudricalrcover, E,-

which is grooved vertically to slide over xed guides attached to the steam-cylinder. This cover isformed at its top or closedend with a` squared socket to receive the squared end ofi the tube @,Afor the purpose of arresting any ,tendency of the piston to move axially.` The `lower edge of this cylindricalcoverE is madel with a flange for receiving annular weights,'byi which the pressureof the steam is balanced. i

The action of this pressure-regulator is as follows: As the steam fenters this ,properlyweightedpressure-regulator, it will pass 'thei valvef and fill the cylinder A, and eventuallyj pass out at theneck d. Vhen the pressure of the steam is in excess of that required, it will? force up the piston against the action of l,the

counter-weights carried Aby the cover E, and` thereby cause the piston to impart an axial motion to the spindle F and force the double valve toward its seats, thereby contracting the openings for the passage ofthe steam. Should,

however, the pressureof the steam diminish,` the piston will fall and cause the valve to pre-` `sent an increased area to the `passage of thei trol or regulate the flow of fluidpast. the said steam.

.From the foregoing description it will vbe obvious our pressure-regulator may be applied Ato regulate the flow of water, say, intoa tank or reservoir. We haveshown in sectional elevationat Fig. 3 a modification of the last-,described pressure-regulator suitable for this purpose. In this example the rising ofthe valve f serves to contract or closethe openings ,Openings are made'in the bot-v This chamber c `is madesuiii-v quick thread of the spindle. `formed to receive two fixed guides, c3, pendent fortheilowofthe liquid; but'the action of the regulator is precisely the same as that just described. The water passes into the space suru rounding the valve-chamber, and flows thence through openings made in aplate, D, forming .thebottomiof the casting D,tothe tank or-,resersbottom plate, D', and for imparting the axial motion to this spindle afloat, C, is employed, which, like the piston of Fig. 2, is formed with afthreaded center, c', .corresponding with the This iloat is from the bottom plate, D', and threaded on their inner ends to attach the platetothe castyingiD. "By means oftheserodsthe iioatisprevented from turning while-making its vertical movements. ,As the oat rises and falls with .the variationsin the level of the water, it will automatically regulate the position of the valvef withregard to its seats, and thereby control the admission of;the supply.

"Having now particularly described andas- Vcertained the nature of our said `invention and in ,what mannerthe same is tobe performed, wedeclare that what we claim is- `In combination with albellowshead, piston, or float so fitted 1asito rise and fall ythrough the variations in pressure of thc'fluid'to becon- 4trolled, a valve carriedby a screwed spindle,

which spindle is free to turn in a fixed screwed neck, and which also Vtakes into a threaded neck carried by the bellows-head, piston, or tloat,for the purpose of receiving therefrom an axial motion, and thereby causing the Valve to approach to or recede from its seat and convalve, lsubstantially as above described.

ROBERT R. BEARD. VVAL'IER HY. OAKLEY.

Witnesses:

H. iK. WHITE -G. H. G. MATHIEsoN, Both of 6 Breams Buildings, London, E. O.

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