US2208122A - Regulator - Google Patents

Description

Juy E6, 1940. w. s. DlcKsoN REGULATOR Original Filed Aug. 14, 1936 N Waw 1NVENTOR.

ATTORNEY6.

aient $111115 l NITED REGULATOR.

Walter S. Dickson, Upper Montclair, N. J.

YApp111eatmn August 14, 1936, serial No. 96.021: I

Renewed December 14, 1939 12 Claims.

This invention relates to a regulator by means of which aV large variety of control members can be utilized for a large variety of purposes, and in different sorts of installations.

The regulator is particularly useful for varying a continuous flow of fluid, either liquid or gaseous, in response to changes or impulses in the medium to be controlled. The variation in the flow of the fluid caused by this regulator is capable of causing .control mechanisms of different sorts already known to control such things as pressure, vvacuum, rate of flow of steam, air or other fluids, temperature, speed, liquid level, density of liquids, feed lines, voltage, humidity, etc.

In carrying out lthe invention, pressure or vacuum or both can be 'used to operate a lever` whose fulcrum can be shifted. This lever carries a closure member for the end of a pipe, by means of which the flow as Well as the pressure of fluid in this pipe is regulated. The changes in the pressure in this pipe operates control mechanism for different purposes, and changes in the medium to be 'controlled operates the regulator.

The invention will be' understood from the description in connection with the accompanying drawing, in which Fig. l is a section along the line I-I of Fig. 2, showing an illustrative embodiment of the invention; Fig. 2 is a plan view with parts removed; Fig. 3 is a sectionalong the line 3 2 of Fig. l; and Fig. 4 is a section through a type of motor that may be used in connection tainer l open, and a fluid is caused to iiow through this pipe from a convenient source. The uid may be air from an air compressor or water from city mains for example and the source is preferably at substantially constant pressure, or a pressure regulator is used near the exit end of pipe I I.

An openingmay be provided at any convenient place in the container' I for escape of the fluid that enters through the pipe section 3. A nozzle 5 is provided at the open end of the pipe section 3, and a'cleaner rod u is providedV for the nozzle. This cleaner 6 may be a twisted rod for example. A hollow disk 'I is attached to the upper end of lthe rod 6 by a spider with its rim resting upon an (o1. isi- 153) A compression spring 9 has its lower end resting upon the hollow disk 'I and the upper end of this spring bears against the end of a hollow'plug I0 that is screwed into the inside of the pipe section 3.

A pipe I I leads from the source (not shown) of fluid under pressure and a branch I2 leads from this pipe, II to the diaphragm motor as shown in Fig. 4. An adjustable restriction or throttle plug II' is provided near the exitend of pipe II. A cleansing extension ,6' extends from the upper end of rod 3 to the space at the end of plug II for cleaning this space. v

A pipe or pipes lead to the Sylphons or bellows I3 and/or I4 from locations where the medium to be controlled undergoes variations and is to be regulated by this regulator. Screw plugs II and I9 are provided in the-pipes I5 and I3 to adjust or.

restrict the size of 'openings in these pipes. Nip# ples I9 and 20 connect the Sylphons I3 and I4 to the pipes I5 and I5 and these nipples are rigidly ilxed in the cover 2 to keep the upper ends of the Sylphons in fixed positions. The nipples I9 and may be xed in position by being soldered or welded in the cover or by being screw threaded and screwed into screw threaded openings in the cover. Cleaning pins I'I and I8' (Fig. 2) lmay be attached to the bottoms of the Sylphons I3 and I4 and extend into the spaces between the ends of the screw plugs I1 and I8 and the inside walls of the pipes I5 and I6, if desired. The lower movable endsof the Sylphons I3 and I4 are connected pivotally by connections ,2| and 22 to lugs 23 and n 24 on the lever 25. A slidable fulcrum 26 is provided for the lever 25. This fulcrum is triangularly shaped in cross 'section or is shaped like a prism with a ilat side resting against and slidable upon the bottom of container I, with the lever 25 resting upon its upper edge, which serves as a fulcrum for this lever. A screw threaded opening 21 is provided through the fulcrum 26 and a threaded rod 23 extends through this opening 21. 'Ihe end walls of the container I are provided with bearings 29 and 30 in which the reduced ends 3| and 32 of the rod 2li are journaled. The rod 28 is provided with a screw driver slot 33 in one end so that it can be turned from the outside of the container I to shift the fulcruzn 26.

` A compression spring 35 rests against a dished disk 36 that is located near one end of the lever '25, and the other end of this spring bears against a similar disk 31. A screw 39 passes through a threaded hole 40 in the cover 2 and serves for adjusting thetension of the spring 35. A lock nut 40 is provided for the screw 38.

A pair of adjustable stops 4I and 42 is provided nevarA each end of the lever 25. Thesestops are conveniently made adjustable by being made of which this 'spring 43 rests. when it is pressed down. The spring 43 is for closing the nozzle 5 gradually when the left hand end ofthe lever 25 rises. rod 6 and extension 6 are simultaneously moved longitudinally and removes any dirt that may have collected in the nozzle or at the end oi the throttle il.

The operation ofvthis regulator will be described in connection with the motor shown in Fig. l for regulating the steam pressure in the pipe 53, but it is to be understood that this regulator is suitable for use with numerous other sorts oi control mechanisms..

For example, the pressure of the steam passing beyond .the valve 59 in the direction of the arrow may be kept substantially constant with this regulator. A branch pipe @d from the pipe 58 is connected to one oi the Sylphons i3 and ifi, so that the pressure inside the' Sylphon will vary with variations of the steam pressure to the right oi. the valve Se. A fluid from any convenient source under substantially constant pressure passes through the pipe ii and a jet thereof passes out of the nozzle Fi. A branch i2 extends from the pipe ii to the motor shown in Fig. 4.

which isa diaphragm motor. It comprises a housing or container 5i that is'xed in position and is divided into two compartments 52 and 5@ by a ilexible diaphragm 5d* that extends throughA the same constitute no part of the present invention they will not be described in detail.

When the pressure in the pipe 68 to the right of the valve 59 decreases, the pressure in the Sylphon I3 or id to which the pipe @il is connected decreases so that the compression spring -turns the lever 25 clockwise, thereby closing or partially closing the nozzle 5 as the spring i3 is brought into contact with or near'to the end of the pipe 3. The closing or partial closing oi this nozzle increases the pressure of the uid in the pipe il and consequently increases the pressure in the pipe i2. This increase of pressure in the pipe i2 is transferred to the compartment- 52 in the diaphragm motor (Fig. 4), thus moving the diaphragm 5d and rod 5d downwardly, thus opening the valves@ further by the connections above referred to. 'I'he opening of the valve permits more'steam to'pass and thereby returns the pressure at the branch pipe di) to the desired point. An increase in this pressure causes the lever d vto move in the anti-clockwise direction, thus Either one of the Sylphons i8' or It .may be used for opposing the spring 36,'while the other When the end of the nozzle is closed ther one is used as a compensatingdevice orto avoid hunting. e

One of the Sylphons i3 and it may be connected to a vacuum that is to be controlled. In such a case the iulcrum 26 is shifted to the right of .spring 35. 'I'he operation lis similar to that already described, or the Sylphons may be connected to air under pressure in a zone whose temperature is to be controlledy from thev variation in temperatures operating mechanism similar to the manner already described, and so on, for otherconditions to be controlled, as will be understood.

The adjusting screws di and42 limit the extent of travel of the lever 25 in opposite directions and are also available for lifting the lever 2li off of the fulcrum 2t when it is desired to shift this fulcrum, by turning the screw threaded rod 2t.

When the Vfulcrum 26 is shifted to the left to the dotted line position, the Sylphons work diiferentially, and, when it is shifted to the right of. the dotted line position, it isi-necessary to use vacuum in one of the Sylphons to turn the lever 25 clockwise. The dished disks 36 and 3i provide a convenient way for substituting springs 35 vof different characteristics.

I claim: Y 1. A regulator comprising a conduit connected to a source of substantially constant pressure trolled and cooperating' with saidlever on one side or said fulcrum to turn ,said lever, rand sind vmotor means responsive to pressure in said conduit for ccntrplling said medium. l

2. A regulator comprisingaconduit connected to a source of substantially constant pressure fluid and having an outlet open to the atmosphere, a restriction in sa conduit between said source and said outlet, a pivoted lever adapted to contact with said outlet for varying the size thereof, a shiitable iulcrum for said levera duid `operated member communicating with a medium to be controlled and cooperating with ,said lever on one side of said fulcrum to turn` said lever, and fluid motor means responsive to pressure in said conduit for controlling said medium.

3. A regulator comprising a conduit connected fluid and having an outlet open to the atmosphere, a pivoted lever adapted to contact with said outlet for varying the size thereof, Ya shiftd. A regulator comprising a conduit connected to a source oi substantially constant pressure iiuid andl having an outlet open to the. atmosphere, a pivoted leveradapted to contact with said outlet for varying the size thereof, a shiftable' fulc for said lever, abellows communieating with a medium to be controlled and cooperating with said lever on one side of said fulcrum to turn said lever, and fluid motor means responsive to pressure in said conduit for controlling said medium.

5. A regulator comprising a conduit connected to a source of substantially constant pressure 76',

Sil

'to a source of substantially constant pressure l g asoman iluid and having an outlet open to the atmos' phere, a pivoted lever adapted to contact with said outlet for varying the vsize thereof, a shiftable fulcrum for said leve a uid operated member communicating with a medium to be controlled and cooperating with said lever onone side. of said fulcrum to turn said lever, a spring cooperating with said lever on the other side oi said i crum from said fluid operated member,`

and il d motor means responsive to pressure in said conduit for controlling said medium.

6; A regulator comprising a conduit connected to a source of substantially constant pressure iiuid and having an outlet open to the atmosphere, a pivoted lever adapted to contact with said outlet for varying the size thereof, a shiftable fulcrum for said lever, means for shifting said tulcrum along said lever, a uid operated member communicating with a medium to be controlled and cooperating with said lever on one side of said fulcrum to turn said lever, and iluid/motor means responsive to pressure in said conduit for controlling said medium.

7. A regulator comprising a conduit connected lto a source of substantially constant pressure iiuid and having an outlet open to the'atmosphere, a pivoted lever adapted to contact withsaid outlet for varying the size thereof, a shiftable fulcrum for said lever, means including a threaded rod for shifting said fulcrum along said lever, a uid operated member communicating .with a medium to be controlled and cooperating with said lever on one side of said fulcrum to turn said lever, and fluid motor means responsive to pressure in said conduit for controlling said medium. D

8. Aregulator comprising a conduit connected to a source of` substantially constant pressure iiuid and having an outlet open to the atmosphere, a pivoted lever adapted to contact with said outlet for varying the size thereof, a shiftable fulcrum for said lever, an adjustable stop for said lever on each side of said fulcrum, afluid operated member communicating with a medium to be controlledl and cooperating `with i said lever on one side oi said fulcrum to turn said lever, and fluid motor means responsive to pressure in said conduit for controlling said medium.

9. A regulator comprising a conduit connected to a source of substantially constant pressure fluid and having an outlet open to the atmosphere, a pivoted lever adapted to contact with said outlet for varying the size thereof, a shiftable fulcrum for said lever, a spring pressing against said lever, means for shifting said fulcrum to opposite sides of said spring, a iiuid operated membez` communicating with a medium to be controlled and cooperating with said lever on one side of said fulcrum to turn said lever, and fluid motor means responsive to pressure in said conduit for controlling said medium. j

l0. A regulator comprising a conduitl connected to a source of substantially constant pressure iiuid and having an outlet open to the atmosphere, a pivoted lever having a exible member adapted to contact with said outlet for varying the size thereof, a shiftable fulcrum for said lever, a

fluid operated member communicating with a medium to be controlled and cooperating with said lever on one side of said iulcrum to turn said lever, and iiuid motor means responsive to pressure in said conduit for controlling said me dium.

1l. A regulator comprising a conduit adapted to contain iiuid under pressure and having an outlet to the atmosphere, a pivoted lever in proximity to said outlet for varying the rate at which fluid can pass through said outlet, means operated by a medium to be controlled cooperating with said lever to change its position, a spring pressing against said lever on one side of its pivot, and duid motor means responsive to change of pressure in said conduit for controlling said medium. c 12. A regulator comprising a conduit connected to a source of substantially constant pressure iiuid and having an outlet open to the atmosphere, a pivoted lever adapted to contact with said outlet for varying the size thereof, a iiuid operated member communicating with a steam chamber whosepressure is to be controlled and cooperating with .said lever on one side ot its fulcrum to turn said lever, and uid motor means responsive to pressure in said conduit for controlling the pressure in said steam chamber.

WALTER B. DICKBON.

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