US1213972A

US1213972A - Fluid-pressure regulator.

Info

Publication number: US1213972A
Authority: US
Inventors: Robert Daniel Tackaberry
Original assignee: Individual
Current assignee: Individual
Priority date: 1914-04-11
Filing date: 1914-04-11
Publication date: 1917-01-30
Anticipated expiration: 1934-01-30

Description

R. D. TACKABERRY.

FLUID PRESSURE REGULATOR.

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FLUID-PRESSURE REGULATOR.

Specification of Letters Patent.

Patented dan. 30, jimi?.

Application filed April 1l, 1914i. Serial No. 4831,312.

To all whom may concern: Y

le it known that I, .Boni-nir D. Tacna# unizar, a citizen of the United States, residing at Lewiston, county of Androscoggin, State of Maine, have invented certain new and useful Improvements in F luid-Pressure `legulators, of which the following is a specification.

This invention relates to iluid pressure regulators and particularly te a reducing valve of the diaphragm and lever type.

rllhe device of my present invention is especially adapted to the control of steam but may be used advantageously on water or gases. W`hile in general designed to control reduced pressures between given limits, it is especially useful where a low pressure is desired or required, andwhere the initial pressure is liable to fall to or below the desired reduced pressure.

@ne of the objects of my present invention is to provide a reducing valve which will be positive and accurate in action and instantly responsive to the slightest variations'in the pressure.

Another object in lmy invention is to provide a construction whereby the body of the valve may be turned to any angle and yet leave the diaphragm in a` horizontal position, thereby permitting the valve to be attached to pipes running in any angle.

ilinother object of Vmy invention is to provide .for a direct transmission. of power bei the use of one levei.` only.

.l further object of my invention is to provide a construction whereby the lifting power of the diaphragm may be increased or decreased by adjusting the diaphragm along the lever.

Another object of my invention is to provide a connection for transmitting the movement of the diaphragm to the lever and in turn to thevalve stem, which connection will give the desired lever effect without any lost motion. i

rl'hese and other objects which will appear more fully hereinafter a fe attained by the use of the reducing valve described in the following specification. In the drawings forming a part of that specification. l have shown illustrative embodiments two forms of valves, a double and a single seated valve, to which the principles of my invention are equally applicable.

ln these drawings; Fi gure l. is a plan'view a een the diaphragm andthe valve stem by of a device provided with a double seated valve in accordance'with my invention with the valve shown in transverse section, Fig. 2 lisa side elevation thereof with the valve and diaphagm 'shown in longitudinal section, Fig. 3 is a detail view ofthe rocking pivot which connects the diaphragm to the weighted lever, Fig. l is a view similar to Fig. l of a single seated valve in accordance with my invention, and Fig. 5 is a view similar to Fig. 2 of the valve shown in Fig. 4.

Referring lirst to the double seated valve shown in Figs. l and 2, I have indicated at l the body of' a double seated valve. The valve 2 is adapted to be placed in a live steam main with its two valve heads vertically disposed so as to prevent scale and dirt from collecting at the seats. The inlet and outlet are designated by the letters A and B respectively. The course of the steam or other fluid entering through the inlet is in dicated by the arrows. The steam flows around the valve Qi in opposite directions and at the same pressure. As shown in Fig. 2, however, the valve is closed. It is controlled by the movement of the diaphragm 3. The area of the valve is much less than that of the diaphragm and the diaphragm therefore has greater lifting power.

The valve may be adjusted by a coil spring fl which contacts with a stud 21 on one of the valve heads and is intended to prevent the valve from fluttering on its seats. Tension on the spring 4l is increased or decreased by means of the adjusting screw G which is threaded into a boss 7 on the valve body.

The valve body has a projecting hub 8 to which is clamped a bracket 9 from which f the diaphragm casing is hung. rl`he bracket 9 permits the valve body to be swung in any angle while leaving the diaphragm in a horizontal position as shown in Fig. 2. The in1- portance of this is that it-.permits the valve i to be attached to pipes running in any angle.

rlllhe numeral 10 indicates a stuffing be): set on the valve stem 5 beyond the bracket. The stalling box is'always in a horizontal position and is always away from the condensation.

The movements of the diaphragm are transmitted to the valve stem 5 by a right angled lever 11. The upright arm of this lever is connected to the valve stem in any suitable manner. As a convenient form, have shown l1n these drawings a bifurcated,

link l2. The lvalve stem is received in one end of the link and the lever 11 lits in the slot of the other end and has slight play therein by means of the slots 12X and the bolts 12a. This form of connection however may obviously be varied, and in Fig. 5, have shown a ball and socket joint 29 instead of a link connection.

The lever 11 is pivoted to the bracket 9 by a pin 18 j ournaled in a. pair of ears 14- on the bracket. The lever connects the valve stem directly with the diaphragm so that the valve will respond to the lift of the diaphragm under the slightest variation in the steam pressure. rfhe single lever secures a. direct transmission of power which is etlicctive to close the valve against practically any pressure carried on the steam main under a relatively slight pressure acting on the diaphragm.

Since the movements of the diaphragm effects the regulation of the valve it is important that it should be capable of positive control so as to regulate its eeetive lift. The diaphragm is therefore made adjustable along the lever so that its eii'ective lifting power may be increased or decreased at will. In order that the diaphragm casing may move relative to the bracket 9 from which it is hung, I provide a sliding joint connection between the diaphragm casing and the bracket. The sliding joint consists of a plate l adjustable in guide lugs 151 on the upper face of the diaphragm case 16. rThe plate has two elongated slots 17 in which work two adjusting screws 18 which may be tightened to fasten the diaphragm casing in adjusted position.

rlihe adjustment of the diaphragm along the lever is through a rocking pivot 19 and a plurality of holes 21 in the lever. rlhe pivot Vtransmitsall movements of the diaphragm without any lost motion to the lever and with the sliding joint permits adjustment of the diaphragm along the lever. The lower end of the pivot 19 seats and finds bearing in a bushing 20, seating on the diaphragn'i and projecting through the diaphragm case 16. This end of the pivot is slightly smaller than the bore of the bushing, thereby elimin ating friction while permitting the desired movement. The upper end of the pivot is forked to embrace the lever on two sides (see Fig. 1t is bolted to the lever by a bolt which may be set up selectively in any of the series of holes 21 in the lever. These holes with the sliding joint on the casing 16 therefore permits the diaphragm to be adjusted relative to the valve to vary the effective lift of` the diaphragm.

The diaphragm is usually a. rubber disk bclamped between the two edges of the diaphragm case by the screws 31. The diaphragm is protected by an overlying protective device composed of two sets of leXibly connected members extended radially from the base of the bushing 20. The base of the bushing 2O is formed as a solid piece of metal having an annular recess extending circumferentially thercaboui.. linncd loosely in this recess so as to be capable ol a slight vertical play is a series of radially extending substantially contiguous members rlihe members are preferably somewhat arrow shaped in plan (see l `ig. l), and are arranged with their heads pinned in the recess and their shanks extending outwardly toward the outer circumference olE the diaphragm case. iioose-ly connected with said members is a series of radially extending substantially contiguous nunihers 3G. rl`he members 2.36 are preferably soun what sector shaped in plan as seen in lfig. 1 and have their curved edges disposed ioward the outer circumference ol the diaphragm case so as to rest on an internal eir cumferential ledge 22 formed on one of the sections of the case. The loose ci'mnection between each member 35 and Il@ is conveniently effected by slotting each member 3G transversely as indicated at 37 (F 2) and pressing up the metal from the forward edge of each slot to the inner transverse edge of the plate to form a yoke like saddle member 38 raised above the plane of the rest of the plate and preferably of a length but slightly greater than the width ol the shank of the member 35. The outer or shank end of the arrow like members 35 are adapted to be inserted through the open ings thus formed under the yokes 3S until the inner edges of the members 3G stop against the shoulders formed by the heads of the members 35. In this position the Shanks of the members 35 partially overlie, the plates 3G with the yoke like members 23S bearing on the upper sides of the shanks. The members 35 and 8G when thus assembled form a flexible disk like protector substantially overlying the rubber diaphragm disk 3. rlhe protector thus formed will not interfere with the movements of the die.A phragm disk 3 responsive to variations in the pressure. and yet completely protects the diaphragm by compelling it to form the same arc on every ujiward movement. thus preventing the diaphragm from luxlginf' in places and hence increasing the, life olV the rubber diaphragm disk.

The point for which the reduced pressure is set may be varied. This point is governed by the number of weights 23 hung on thel rod Q4 which is attached to the free end o lE the lever 11. The upper end of thc rod 2l is forked and the lever has a plurality of tle or other place Where the reduced pressure is required.

The diaphragm is subjected to pressure from the delivery conduit through the pipe 26. These connections have not been shown in the drawings but the Word pressure and the representation ot' an arrow appear thereon to indicate that the pressure enters pipe 26.

The operation of this torm of valve is as follows: rlfhe valve 2 is normally open and is only closed when the reduced pressure reaches the point tor which it is set. The steam or other Huid entering through the inlet is distributed in opposite directions (as indicated by the arrow in Fig 2), and with the same pressure through the valve body. lVhen the initial pressure falls beloxv a certain limit (governed by the weights Q3) or when a low reduced pres-sure is desired, steam enters the pipe 26 from the drying cylinder or other place. This lilts the diaphragm which through its rocking pivot 19 rocks the lever 1l on kits pivot 13. The rocking motion of the lever is transmitted to the valve stem-5 by the connection l2 thereby closing the valve and effecting a reduction in the pressure. lVhen the reduced pressure reaches the point tor which it is set the valve is again adjusted and is so maintained by the diaphragm. rthis lout pressure point may be varied either by varying the number of Weights Q3 or by moving the rod 2@ along the lever. It' desired the. Weights 9.3 could be dispensed with and a heavier spring be used in the place et the coil spring 4 to accomplish the same purpose.

The effective lifting poiver of the diaphragm may be varied by adjusting it along the lever. The sliding joint and selective engagement of the pivot member 19 in the holes 2l permit this adjusting movement.

rlhe single lever ll not only secures a direct transmission of povver eiteetive to close the valve against practically any pressure carried on the steam main under a relatively slight pressure acting on the diaphragm but makes the device highly responsive to even the slightest variation in the steam pressure.

Referring now to Fig. 4r in which I have shown a single seated valve: The valve body has a piston shaped valve 27 which lits closely into a cylinder 28. The piston Q? is much larger than the valve opening so that when pressure is obtained on the lov: pressure side it will pass through the. ports 271 and flow behind the piston. This creates a` counter pressure behind the piston and assists the diaphragm to regulate the valve at the desired pressure. The pressure required is governed by the Weights Q8, The parts are otherwise the same as in l except that a ball and socket joint 29 is used in place of the link connection l2 of Fig. l, and that the piston is grooved at 30 to provide a Water packing.

Various other modifications in the form and construction of my device may obviously be resorted to Within the limits of'the appended claims.

What I therefore claim and desire to secure by Letters Patent is:

l. In a Huid pressure regulator, in combination, a valve body, a valve therein, a diaphragm case, a diaphragm therein, a hanger connecting said diaphragm case and valve body and permitting angular adjustment of said body relative to said case, a valve stem, operative connection between said diaphragm and stem, and means including a sliding joint between said diaphragm case and hanger for permitting adjustment of said case relative to said valve effective to vary the lift of said diaphragm.

2. n a tluid pressure regulator, in combination, a valve body, a valve therein, a diaphragm case, a diaphragm therein, a hanger connecting said case and body and permitting angular adjustment of said body relative to said diaphragm, said hanger having' a sliding connection with said case permitting adjustment of said case relative to the valve, and a valve stem, a weighted lever fulcrumed on said hanger and connected `with said stem, and arocking connection between said diaphragm and lever for transn'iitting the effective motions ot said diaphragm to said lever said rocking connection having selective engagement with the lever Whereby the diaphragm may be adjusted along the lever to vary its effective lift.

3. In a fluid pressure regulator, in combination a reducing valve, a diaphragm operatively connected therewith and disposed to control the efective constant position ot said valve, and a liexible protector for said diaphragm comprising a plurality of series of members overlying said diaphragm, each member of one series loosely connected with the adjacent member ot an adjacent series.

ln a tluid pressure regulator, in combination a reducing valve, a valve stem, a lever connected with said stem, a diaphragm, an anchoring member mounted ou said diaphragm, a connection between said member and said lever, and a flexible protector Jfor said diaphragm comprising a plu rality of series of members having a loose connection With said anchoring member and one series loosely connected with an adjacent series.

In a fluid pressure regulator in combination, a reducing valve, a valve stem, a lever connected with said stem, a diaphragm, an .anchoring member mounted on said diaphragm, a connection between said member and said lever, and a vtieXible protector for said diaphragm comprising a plurality of series of radially disposed pro- -tector plates having loose connection with said anchoring member and one series detachably connected with an adjacent series.

G. A protector for a diaphragm disk comprising a flexible disli made up of a plurality of flexibly connected series of protector members.

7. A protector for a diaphragm disk comprising a iieXible overlying dish made up of a plurality ot radially extending flexibly connected series of protector plates.

8. ifi.. protector for a diaphragm dish comprising a flexible overlying` disk made up or two sets of radially extending flexibly connected protector plates, one set ot plates having a general arrow like form and the other set of plates havine' a general sector shape, the shanlrs of said first named set overlapping and loosely connected with said second named set,

9. 1n combination with a diaphragm and an anchoring member associated therewith, a protector for said diaphragm comprising a plurality of series o' protector members, each member oli one series loosely connected with the adjacent member ot another series and the members oit one series having a loose connection with said anchoring member.

10. 1n combination with a diaphragm and an anchoring member associated therewith, said member having a circumferential recess, a protector for said diaphragm comprising two series of radially extending protector members, the members ot one series loosely secured in said recess of the anchoring member and the members of the other series supported on said diaphragm and loosely connected with the adjacent members of the iirst named series.

11. 1n combination with a diaphragm, and an anchoring member associated therewith, said member having a circumferential recess, a protector for said diaphragm comprising sets ot radially extending protector plates, the members of the inner set being loosely pinned in said recess or the anchoring member and 'flexibly connected. with the members of the outer set, each ot the plates in the outer set being slotted and having the metal adjacent one edge of the slot pressed out to provide an opening in vhich the end of the cooperating protector plate is receivable to provide a flexible connection for the sets of plates.

1:2. A protector for a diaphragm consisting of two series ot members ar anged in overlying relation to the diaphragm, one series loosely connected with the other.

13. A protector for a diaphragm consisting of two overlapping series of members arranged in overlying relation to the diaphragm.

la. A. protector for a diaphragm consisting of two series ot members arranged in overlying relation to the diaphragm, one series having openings to receive the adjacent portions or the other series.

15. A protector ior a diaphragm consisting of two series of members arranged in overlying relation to the diaphragm, one series overlapping the other and having a connection therewith permitting a limited movement in the direction of movement el the diaphragm.

16. 1n combination, a rotatable valve body, a valve therein, a diaphragm case longitudinally adjustable relative to said body, a diaphragm therein, an operative connection between said valve and diaphragm, and a support having a connection at one end disposed tor engagement with said valve body and permitting rotation thereof relative to said case and having a connection at its other end with said ease permitting longitudinal adjustment of the case relative to the valve body.

17. ln combination, a rotatable valvr` body, a valve therein, a diaphragm case longitudinally adj ustablc relative to said body, a diaphragm therein, an operative connection between said valve and diaphragm, and a support having a clamping collar at one end disposed for engagement with said val vc body and permitting rotation thereol relative to said case and having a sliding connection at its other end with said ease permitting longitudinal adjustment of the case. relative to the valve body.

18. In combination, a valve body, a. valve therein, a diaphragm case, a diaphragm therein, an operative connection between said valve and diaphragm and a hanger having a connection with said body and case at opposite ends and disposed to position said case below the plane oit and at substantially right angles to said body.

19. 1n a iiuid pressure regulator, in combination, a vertically disposed valve body,

a valve therein, a horizontally disposed diaphragm case, a diaphragm therein, an operative connection between said valve. and diaphragm and a hanger tor said ease having a collar at one end disposed to clamp said valve body and permitting adjustment thereof about its axis without disturbing the horizontality ot said case.

20. ln a fluid pressure regulator, in combination, a valve body, a valve therein, a horizontally disposed diajrihragm case, a diaphragm therein, and a hanger for said case having a clamping connection with said valve body j iermitting adjustment thereof about its axis without disturbing the horizontality of said case, and said hanger having a connection with said case permitting bodily adjustment thereof toward and from said valve body.

21. 1n combination, a vertically disposed rotatable valve body, a valve therein, a horizontally disposed diaphragm case, a diaphragm therein, an operative connection between said valve and diaphragm, and a support for said case having a connection with said valve body permitting rotation oi said body about its axis without disturbing the horizontality of said ease.

22. In combination, a valve body, a valve therein, a diaphragm ease, a diaphragm therein, an operative connection between said valve and diaphragm, a support having connection with said body and oase at opposite ends and disposed to position said oase below the plane of and at substantially right angles to said body, and a protector overlying said diaphragm to prevent rupture of the diaphragm.

23. In combination, a valve body, a valve therein, a diaphragm ease, a diaphragm therein, an operative connection between said valve and diaphragm, a support having eonneetion with said body and oase at opposite ends and permitting angular adjustment of said valve body relative to said ease, and an overlying protector for said diaphragm to deiiiie the arenal movement of the diaphragm and thus prevent rupture of the diaphragm.

2%-, In combination, a vertically disposed rotatable valve body, a valve therein, a hori- Zontally disposed diaphragm ease, a diaphragm therein, an operative connection between said valve and diaphragm, a support or said ease having a connection with said valve body permitting rotation oi said body about its axis without disturbing the horizontality of said ease, and a protector for said diaphragm acting in opposition to the pressure to prevent rupture of the diapliragm.

25. In combination, a diaphragm ease and a valve body arranged with their axes at an angle to each other, a diaphragm in said ease, and a valve in said body operatively connected with each other, and a connection between the ease-and body permitting their relative angular adjustment.

Q6. In combination, a diaphragm oase and a valve body arranged with their axes at an angle to each other, a diaphragm in said ease and a valve in said body operatively oonneeted with each other, and a connection between the oase and body permitting their relative angular adjustment and also per: mittiiig relative longitudinal adjustment toward and away from each other. l

27. In combination, a diaphragm case and a valve body arranged with their axes at an angle to each other, a diaphragm in said ease, and a valve in said body operatively connected with each other, and a connection between the Case and body permitting relative angular adjustment of the one without disturbing the setting of the other. A

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

ROBERT DANIEL TAGKABERRY.

iVitnesses:

SAMUEL W. KINGSTON, Jenn CoUGI-ILIN.

topiea of thia patent may be obtained tor five uente each, by aridressiiig,` the Commissioner of Patents, Waahnton, D. C.