US1537704A - Pressure regulator - Google Patents

Description

May 12, 1925.

Y J. RUMPF PRESSURE REGULATOR.

Filed Feb. 24, 1923 INVENTOR ATTORNEY Patented May 12, 1925. V

UNITED STATES PATENT OFFICE.

JOHN nuivirn, on NE MiLronn Bonouen. new JERSEY; ASSIGNOR r THE SAFETY cAn nnn'rinea LIGHTING COMPANY, A CORPORATION on NEW JERSEY.

PRESSURE REGULATOZlt.

Application filed February 24,1923. Serial No. 620,923.

To all whom it may concern:

Be it known that 1, JOHN RUMPF, a c1t1- zen of the United States, and a resident of borough of New Milford, county of Bergen, and State of New Jersey, have invented an Improvement in Pressure Regulators, of which the following is a specification.

This invention relates to construction for a vice of the above nature of simple and durable construction and well adapted to meet the requirements of hard practical use. [inother object is to provide such a device capable of a high degree of efliciency in service. Another object is to provide a device of the above nature wherein the parts are conveniently and easily assembled and are readily accessible for cleaning, replacement or repair. Other objects will be in part obvious or in part pointed out hereinafter.

The invention accordingly consists in the features of construction, combinations of elements and arrangements of parts as will be exemplified in the structure to be hereinafter set forth and the scope of the. ap' plication of which will be indicated in the following claims.

In the accompanying drawing in which is shown one of the various possible embodiments of this invention,

Figure 1 is a plan of a pressure regulator, certain parts being omitted; and

Figure 2 is a sectional elevation, the section being taken substantially along the line the metal may be homogeneous and free.

from porosity. On the inside of the casing and adjacent its. lower wall is formed. an inwardly projecting boss 11 through which extends a passageway threaded at its oilter end 12 to receive a pipe connection from any desired source of fluid supply. Adjacent the central portion of this passage is positionedstrainerfelt or Wicking 13, and on either side of this wicking is positioned a member of straining gauze 13 to strain and purify the gas or other. fluid admitted to the interior of the casing. Into the other end of this passage through the bossll is threaded a valve casing 14 provided with a restricted passage 15 opening into a larger recess 16 at its-inner side. l/Vithin; this recess 16 loosely rests a valve member 17 provided with a conicalend 18 adapted to cooperate with the inner end of the passage 15. The valve member 17 is provided with a longitudinal recess 19 in which rests a strut 20 through which the valve is operated. The end of the valve member 17 is provided with a shoulderl'? between which and the end of the casing 14 restsa coiled spring 21 tending to draw the valve member 17 away from its seat about the end of the passageway 15. I 1

The interior of the casing 10 forms a chamber 22, the upper side of which is closed by a diaphragm 23 held in place between thetop rim of the casing member 10 and a flanged ring 24 by screws such as 25; The central portion ofthe diaphragm 23 is clamped between a pair of washers 26 and 27 by means of a clamping bolt 28'passing therethrough and clamping nuts 29. The clamping bolt 28 is provided with a downwardly extending portion 30 of reduced diameter through an opening 31 in which passes the end portion 32 of the longer end of a substantially L-shap'ed lever 32. The upper and lower walls of the opening 31 are preferably rounded to permit of a rocking motion of the lever 32.

The. lever 32 extending toward the curved portion thereof is preferably gradually increased inwidth, as shown in Fig. 1, and adjacent the end portion of its shorter end is pivoted upon the ends of two cone-pointed screws 33 which are threaded through openings in. the casing member 10 and are provided with locking nuts 34. The screws 33 are preferably of a length to reach only part waythrough the casing 10 and in the outer ends of the openmgs therefor are threaded screws 33 between the heads of '20 which engages the valve member 17 as above described. The spring 21 urging the valve member 17 away from the seat as before described urges the strut 2-0 against pair of coiled compression springs 37. The

other ends of the springs 3'1 are provided with guide members 38 into the open ends of which are inserted spring guide screws 39" These guide screws;39 are threaded tightly intothe casing member lO from the outside 'llhusthe compression springs 37 hearing against the lever32, through the action of the lever 32 inengagement with the openin 31 in the member 30, tend to pull the diaphragm 23 downwardly opposition to the pressure thereon of fluid within the chamber 22. By adjustment of the pivot screws 33 the lever 32 may be moved away from or toward the springs 37 and the compression in the springs 37 may thus be varied at v The action of the pressure regulator is substantially as follows: Gas or other fiuid under pressure enters through the passageway through the boss 11 and through the passage 15 past the valve l7oarid into the chamber 22. Thereupon pressure builds up within the chamber 22 bearing against the diaphragm and tending. to force the diaphragnr upwardly. A movement upwardly of the diaphragm 23; through c the lever 32 rocking upon its pivots 33 thrusts the strut to the right and forces the valve member; 17 toward closing position Any movement upwardly of the diaphragmo23, however, is opposed the'pr essure of the springs 37 bearing. against the lever 32. Thus. upon a pressure being built up within the chamber 22 which is greater than the combined: force ofthe springs 37 opposing the movementof the diaphragm 23, the valve 17 through themovement Off/he lever 32 about its'pivot and through the connecting strut 20, will be moved to closed position arresting the further entraneeot gas to the chamber 22. 'The euit passage from the chamber 22 is shown at (lO-tromwvhich connection may be made to any desired point. Upon the pressure within the chamber-22 dropping below the pressure exertedby the springs 37 upon the diaphragm 23due to withdrawal of the'fluid throughthepassage 40, the springs 37 will move the lever 32 back again and the valve 17 will be moved to open position. Thus. it will be seenthat there is automatically maintained a substantially constant gas pressure within the chamber 22. The amount of this constant pressure regulated by the compression placed. inthe springs 37 which maybe set as-desired,

as above describedrby; adjustment of the pivot screws 33. v The pivots for the lever 32 being pointed, as well as the ends of the valve guides and of the strut20 engaging the lever 32, friction is substantially avoided thus greatly augmenting the sensitiveness and accuracy of the device as a whole. The valve mechanism is confined substantially within the casing 14 so that machine work upon the outer casing itself is practically done away with. removable cover memher ll rests upon the upperrim of the ring 24 to protect the diaphragm 23 from dust ddi t. i

It will thus be seen that there is herein provided adevice whichembodies the fea; tures of this invention, device in its action attains thevarious objects of the invention, andthat the same is well adapted to meet the requirements of practical use. As many possible embodiments may be made of this invention and as many changes might be made in the embodiment hereinset torth, it is to be understoodthatall mamhereinbefore set forth or shown in the accompanying drawing is to be interpreted as illustrative and not in a limiting sense.

.1 claim as my invention 1. In a device of the class described, in

combination, a pressure chamber, a valve Controlling the entrance of fluid theretofa diaphragm responsive to fluid pressurewithin said chamber, lever connected to said diaphragm' and responsive to movements thereof, means connecting said lever and said valve to mal rethe latter responsive to moven'ients of the former, spring means urging saidlever inopposition tothe effect thereon 0 I of fluid pressure upon said diaphragm and holding saidlever against its fulcrum, and means for adjusting the position of said tulcrum to vary the force exerted by said spring against said lever.

2. In a device of theclass described, con'il'iination, a pressure chamber, a valve controlling the entrance of fluid thereto, a diaphragm responsive to fluid pressure within said chamber, a lever connected to said diaphragm and responsive to movements thereof, a connecting member looselyresting between said valve and said lever to make the former responsive to movements of the latter toward the former, spring means urging said lever in opposition to the effect thereon oi fluid pressure against said dia- 'ihragm, and a second spring urging said connecting member against said lever.

3. In a device of the class described, in combination, a pressure chamber, a passage for theentrance of fluid thereto, a valve member loosely supported within said passage and adapted to control the flow of fluid thcrethrough, a diaphragm responsive to fluid pressure within said chamber, a lever connected to said diaphragm and responsive to movements thereof, spring means urging said diaphragm in opposition to the effect of fluid pressure thereon, a strutinterposed be tween said valve and said lever to make the former responsive to the movements of the latter toward the former, and a second spring means holding said strut in position between said valve and said lever.

4. In a device of the class described, in combination, a pressure chamber, a passage for the entrance of fluid thereto, a valve member loosely supported within saidpassage and adapted to control the flow otfluid therethro-ugh, a diaphragm responsive to fluid pressure within said chamber, a lever connected to said diaphragm and responsive to movements thereof, spring means urging said diaphragm in opposition to the effectof fluid pressure thereon, a strut interposed between said valve and said lever to make the former responsive to movements of the latter toward the former, andspring means hearing against said valve member urging the latter away from its seat and holding said strut in position between said lever and said valve member.

5. In a device of the class described, in

combination, a casing having an inlet passage and an outlet passage for fluid, a diaphragm closing one side of said casing and responsive to fluid pressure therein, a lever connected to said diaphragm to be responsive to movements thereof and extending opposite said inlet passage, a valve controlling said inlet passage, means connecting said valve and said lever to make the former responsive to movements of the latter, and a pair of spiral compression springs, one on either side of said inlet passage bearing against said lever in opposition to the effect thereon of fluid pressure upon said diaphragm and holding said lever in position against its fulcrum. I i

6. In a device of the class described, in combination, a casing having an inlet passage and an outlet passage for fluid, a diaphragm closing one side of'said casing and responsive to fluid pressure therein, a lever connected to said diaphragm to be responsive to movements thereof and extending opposite said inlet passage, a valve controlling said inlet passage, means connecting said valve and said lever to make the former responsive to movements of the latter, a pivot for said lever, compression means interposed between said lever and the wall of said casing urging said lever in opposition to the effect thereon of fluid pressure upon said diaphragm and urging said lever against said pivot, and means for adjusting the position of said pivot to vary the compression in said spring. I v

7. In a device of the class described, in

combination, a casing comprising a pressure chamber, and having in a wall thereof an inlet passage for fluid, a diaphragm closing one side of said chamber and responsive to fluid pressure therein, a lever connected to said diaphragm to be responsive to movements thereof and extending opposite said inlet passage, a hollow member threaded into the inner side of said passage and compris ing a valve seat, a valve member resting loosely in said hollow member and adapted to coact with said valve seat to control said passage, a strut loosely interposed between said valve member and said lever to make the former responsive to movements of the latter toward the former, a spring interposed between said hollow member and said valve, urging the latter toward said lever and away from said seat and holding said strut in position, spring means bearing against said lever in opposition to the effect thereon of fluid pressure against said dia phragm, and means for adjusting the force exerted by said last means.

i 8. In a device of the class described, in combination, a, casing comprising a pressure chamber and having in a wall thereof an inlet passage for fluid, a diaphragm closing one side of said chamber and responsive to the fluid pressure therein, a lever connected to said dlaphragin to be responsive to movements thereof and extending adjacent said inlet passage, a loosely mounted valve member adapted to 'coact with the inner side of said passage, means adapted to guide said valvev member into operative relation with said passage, a member loosely interposed between said valve member and said lever to make the former responsive to movements of the latter toward the former, and spring meansurging said vave member away from said passage and holding said loosely interposed member in position.

9. In a device of the class described, in

combination, a pressure chamber, a valve controlling the entrance of fluid thereto, a diaphragm exposed to fluid pressure within said chamber and responsive thereto, a lever connecting said diaphragm and said valve, a pivot for said lever mounted in a wall of said chamber, means for adjusting the position of said pivot, and adjustable means controlled by the adjustment ofsaid pivot urging said leverin opposition to the effect thereon of said fluid pressure acting upon said diaphragm.

In testimony whereof, I have signed my name to this specification this 13th day of February, 1923.

JOHN RUMPF,

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