US840058A - Valve. - Google Patents

Description

PATENTED JAN. 1, 1907.

A. HARKNESS.

VALVE.

APPLICATION FILED JULY18, 190B.

2 SHEETSSEEET 1.

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A U WM,

ATTORNEYS.

PATENTED JAN. 1, 1907,

A. HABKNESS.

VALVE.

APPLICATION FILED JULYlB, 1906.

2 SHEETSSHEET 2.

iNVENTOR'.

. UNITED smi es PATENT OFFICE.

A DAM HARKNESS, OF EAST NEWARK, NEW JERSEY.

' VALVE.

' Patented Jan. 1,1907.

I To all whom it mayconcern! Be it known that I, ADAM HARKNESS, a

' citizen of the United States, res;d.ng at East Newark, in the county of Hudson and.State of New Jersey, have invented certain new and useful Improvements in Valves; and'l clear, and exact description of theinvention, such as will enable others skilled in the. art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to characters of reference marked thereon, which form a part of this specification.

My present invention has reference generally to improvements in valves; and the invention relates more particularly to a novel construction of valve of the rotary type which may be used either as a reducingvalve for reducing high pressure to a lower pressure or as a regulating-valve for regulating the steam-pressure to regulate the steam-valve and the pressure of a (pump or the like.

This invention has for its principal purposes to provide a simple, cheap, and efliciently-operating valve of a rotary type which is double-ported and perfectly balanced and allows of a maximum flow or passage of the fluid through the double port with the least possible rotation of the valve from its open to its closed position.

A further object of this invention is to provide a valve construction in which the valve is controlled from the outside and without separating the parts of the valve construction, so as to enable the quick changes to be made when it is desired to change the valve from a reducing to a'regula'ting valve, or vice versa, and, furthermore, to provide aconstruction in which the double-ported valve has another advantage and purpose to serve namely, if the pipe upon the low pressure side of the valve should suddenly be broken the sudden rush of the water or similar fluid medium will automatically actuate the movable parts of the valve and result in fully and entirely closing the valve to shut off the passage of the fluid therethrough.

Unlike other reducing-valves, which depend upon the reduced pressure upon the top of the valve-disk in. combination with a spring to close the valve'against the pressure beneath the valve-disk, the valve construction embodying the principles of the present invention is provided with an auxiliary cyllnder in which is movably arranged a plunger or piston against which the water from the low-pressure side of the valve acts to moveit against insteadpf with the action of a spring, thereby rendering the regulation very sensitive.

A further advantage and purpose of the double-ported valve is that if the pipe on the low-pressure side of the valve should suddenly be broken the release of the water from the under surface of the plunger or piston would cause the spring to act so quickly that the valve will rotate past its port or ports, a means or controlling device being provided to lock or hold the parts in a'fixed relation, so that the port will remain closed until again released by the operator. When used for controlling purposes, the valve would have the same action in regard to the sprin reducing-valves of the disk type depends on the back pressure and the spring to hold the valve tight against leakage, and consequently there is the'danger of a leak and the building up of an equal pressure upon both sides ofthe valve, whereas with the construction of valve hereinafter set forth the valve will positively shut off when the required pressure is reached.

Other objects of this invention not at this time -more articularly enumerated will be clearly evid dnt from the following detailed description of the same.

The present invention consists, primarily, in the novel valve hereinafter set forth; and, furthermore, this invention consists in the various arrangements and combinations of devices and parts, as Well as in the details of the construction of the same, all of which will be hereinafter more fully described and then finally embodied in the clauses of the claim, which are appended to and which form an essential part of the specification.

'The'invention is clearly illustrated'in the accompanying drawings, in which -Figure 1 is a longitudinal vertical section plane. at right angles to the plane of the section in said Fig. 1. Fig. 4 is a plan or top view of the device. Fig. 5 is a horizontal tical cross-section of the device taken in a IIO section of the same, said' section being taken on line 5 5 in said Fig. 1; and Fig. 6 is a detail section taken on line 6 6 in Fig.

Similar characters of reference are employed in the above-described views to indicate corresponding parts.

Referrin now to the said drawings, the reference 0 aracter 1 indicates the main body or casting, the same com rising a main chambered portion '2, with w 'ch is connected an upper tube or pipe-like member 3 and ";a lower tube or pipe-like member 4, the upper member 3 forming an inlet and the lower member 4Lan outlet,.as will be clearly evident. The upper and lower end portions of the respective members 3 and 4 are provided with suitable screw-threaded portions 5 and 6, respectively, for arranging and connecting the device in a main by means of the wellknown unions or other connections. (Not shown in the drawings.) The said main chambered ortion 2, which is preferably of the shape s own in the drawings, has in its one side a laterally-extending projection 7, which is closed, as at 8', and is of a circular cross-section, and. in its opposite side the ortion 2 is madewith an open-ended proection 9, also of a circular cross-section, and provided upon its outer surface with a screwthread 9. Both of said projections 7 and 9, as will be seen from the drawings, provide cylindrical seats or bearings for a (pair of cylindrically-shaped portions 11 an 12 of a rotary valve or valve-plug 10. The greater portion of the said rota valve or valveplug is cut away between t e end portions 11 and 12, said portion being made with a flat face 13 lying in a plane extending through the central and longitudinally-extending axis of the plug and said portion bein of a semicircular cross-section, substantial y as illustrated.

Referring now'more articularly to Fig. 3 of the drawings, it will e seen that the said semicylindrical portion of the valve-plug is made with two longitudinally-extending and downwardly and outwardly rojecting ports 14 and 15, which are formed by the several angular members or portions 16, 17, and 18 of the plug. In a like manner the main chambered portion 2 of the main body or casting 1 is made with a pair of ports 19 and 20, winch are separated by means of a laterally-extending portion 21, preferably of a triangular cross-section arranged in the manner illustrated in said Fig. 3 of the drawings.

When the valve-plug is arranged Within said chambered portion 2, with the cylindricallyshaped portions 11 and 12 resting rotatively within the cylindrical seats or bearings ofsaid portion 2, then, as 'will be seen from said Fig. 3, the port 14 is in alinement with the port 19 and the ort is in alinement with the port 20, whi e the member 18 rests directly upon the member or portion 21 and manner and for the more fully described.

the members 16 and 17 of the plug rest, respectively, upon the members or portions 22 and 23 of the chambered portion 2. When the plug is in this position, the orts are wide 0 en and there will be an uno structed flow o' the liquidor fluid therethrough; but it will be understood also that any rotary movement of the plug will result in partially or entirely closing the ports 19 and in the purposes hereinafter Extending from one end of the plug 10 is a stem 24, which is rotatively arranged and extends through 'a centrally-disposed tubular hub 26 of a screw-cap 25, having a portion 27 screwed upon the screw-thread 9 of the open-ended projection 9, so as to close the latter. Said hub 26 is provided also with a screw portion 28, u on which is screwed a stufling box or glan 29, through the central tubular portion of which said stem 24 extends, as shown, and all being arranged to prevent leakage and still not interfere with the oscillations of the valve-plug and its stem. A laterally-extending crank or arm 30 is suitably secured upon the stem 24, said crank or arm being provided with an elongated hole or slot 31, as shown and for the purposes hereinafter more fully described.

The lower or outlet member 4 is provided with a pair of laterally-extending arms or supports 32 and 33, carrying a cylinder 34, provided with a lower head 35, formed with a screw-threaded opening 36, which is usually closed by means of a screw-plug 37 or other suitable closing device. A duct or passageway 38 is formed within said lower support 33 said duct extending from the lower or outlet member 4 into the lower portion of the cylinder 34, the said support 33 being formed also with a laterally-extending hole providing a seat for a rotary valve plug 39, which has an opening or slot 39 adapted to be brought in alinement with the duct 38, so that said duct or passage-way can be opened or closed, as may be desired.

Movably arranged Within the cylinder 34 is a plunger or piston 40 of any suitable con-' struction, which is provided with an upwardly-extending piston-rod 41, said rod being movably arranged within'a tubular hub or guide 43 of a brace or support 42, which extends across the upper open end of the cylinder' and is suitably secured upon the latter, preferably by means of screws 44. The up- XIC per and preferably screw-threaded end 45 of dependent of the stem and not interfere with.

the oscillatory motion of the stem.

At one side the slide or cross-head 46 is made with a suitable extension 48, carrying a laterally-extending pin or stud 49, which exof a tension-spring 59, the coilsof which are tends into and is in operative engagement with the elongated hole or slot 31 of the crank or arm 30, and any reciprocatory motion of the slide or cross-head being thus communicated to the pin or stud 49 produces a corresponding rotary or oscillatory motion of the crank and the stem 24ai1d valve-plug 10, as will be clearly understood. Suitably connected with theupper end-0f the slide or cross-head 46 is the lower screw portion 51 of a rod 50, which extends in an upward direction and through the tubular portion 53 of an adjusting means 52, which has an outer screw-threaded surface 54, screwed into a correspondingly arranged and internally screw-threaded hole56 of'an arm 55, which extends from the upper or inlet portion 3 of the device. The said adjusting device 52 may be provided with a finger-piece 57 and its lower surface 58 bears upon the -upper coil made to encircle the rod 50 and the lower coil of said spring bearing directly upon the upperend portion of the slide or cross-head, all of which is clearly illustrated in the accompanying drawings.

The operation of the device as a reducingvalve briefly is as follows: Suppose the various parts of the valve construction are in their normal initial ositions, (indicated in Figs. 1,2, and 3 of the drawings the pressure of the liquid or fluid in the inlet tube-or member Sbeing the high ressure which is to be reduced to a desired ow pressure in the outlet 4, according to the tension of the spring 59 employed. At first the liquid or fluid will rush through the wide-'open'ports, biit will also pass into the duct orpassage-way 38, the valve-plug 39 therein having been turned into its open relation with said duct. I'mmediately the liquid or fluid will exert its force against the under face of the piston or plunger '40, which is thereby moved in an up ward direction within its cylinder, the degree of movement being'regulated by the counteracting tension of the spring 59. The upward movement of the piston of course produces a corresponding movement'of the slide or cross-head 46, whereby the crank or arm 30 is actuated and the valve-plug 10 is oscillated the right degree to decrease the area of the port or ports, and thereby automatically regulate the flow of the liquid 'thercthrough, so as to maintain a constant and even pressure below the valve-plug.

When the low pressure in the outlet member gets below that of the compressed coils of the spring 59, the expanding coils tend to forcethe previously raised and actuated parts back totheir normal initial positions, thus again opening the port or ports, so as to increase the area 0 the flow therethrough. Thus an alternate action of the piston or plunger against the action of the spring'is constantly taking place, thereby rendering the regulation ver sensitive, and being instantaneous a uni orm low pressure can and a which the device 52' is again screwed into its position upon the arm.

Referring now to Figs. 2 and 6, it will be seen that the piston-rod 41 is provided in one side with a suitable recess or depression 60,"

and loosely arranged in a'laterally-extending perforation or hole in the tubular hub or guide 43 of the-brace 42 is a stud or pin 61,'

upon which bears the end of a spring 62,

which is suitably secured at its otherend by a I means of a screw or pin 63 to the sideof the said brace 42, as clearly shown in said Fig. 6 Y

of the drawings. a

The purpose of the recess or depression 60 and the spring-controlled stud or pin 61 is' that if the pipe on the low-pressure side of thevalve or valve-plug should suddenly become broken the release of the Water or other fluid upon the lower face of the piston or plunger would ordinarily cause thevalve-plug to r0- tate past its port-openings,-and thereby possibly open the ports again. To avoid this, however, and maintaina closed relation of the ports, the spring 62 will force the end of the=stud or pin 61 into the recess or depression 60, when the latter has moved directly opposite the end of the pin or stud, and thereby. the parts become fully locked against movement until released by the operator. It will thus be clearly evident that the valve is automatically closed, so'that there can be no'damage. a

When the valve. is to be used for regulating purposes, the rotary cook or plug in the duct 38 is'closed, and in place of the screwplug 37 the end of a steam-pipe may be screwed into the opening of'the cylinder 34. The pressure of the steam against the piston or plunger will cause the latter to act against the controlling-spring 59, thus operating the rotary valve-plug 10 to regulatethe flow of the steam through the. ports of the device and in consequence the pressure to the steamvalve of a pump or the like. Thus it will be clearly seen that the regulation of the valve is controlled from the outside in either case, when changing from a regulating to a reducing valve, or vice versa, and that without changing or removing any of the parts or taking apart of the valve mechanism.

1. A valve comprising a main chambered body, a ported rotary valve in said chamber,

bered bod .a;.-means of communication be-,

tween. sai I cylinder and the chambered body forcdnducting the fluid from said chamber to saidjjcylindcr, a regulating device in said means of communication, a piston in said cylinder adapted to be actuated by the pressure of the fluid which asses through the rotary valve, Ia piston -ro and means connecting said piston-rod with therotary valve for o crating the latter, substantially as and for t e purposes set forth. Y

2. A 'valvc comprisin a main chambered body, av orted rotary va ve in said'chamber, a cylindgr upon the outside of said chambered body, a means of communication between said cylinder and thelchambered body for conducting the fluid from said chamber to said cylinder, a regulating device in said means of communication, a piston in said cylinderadaptcd to be actuated by the pressure of the fluid which asses through the rotary valve, a piston-r0 and means connecting said piston-rod with the rotary valve for operat' the latter, consisting of a stem extendin g grom said rotary valve, a crank on said stem, said crank being provided with an J elongated hole, aslide connected with said piston-rod, and a stud on said slide extendin into and bein in operative engagement the elongatedfliole of the crank, substantially as and for the purposes set forth.

3. A valvecomprisin a main chambered body, a ported rotary va vein said ,chamber,-

means upon the outside of said chamber connected with said rotary valve and adapted to be actuated by the pressure of the fluid which passes through said rotary valve, and. a pressure-counteracting sprin and means for adjusting the tension of sai spring, substantially as and for the purposes set forth.

4. -A valve comprising a main chambered body, a ported rotary valve in said chamber, a cylinder upon the outside, of said cham bered body, a means of communication between said cylinder and the chambered body for conducting the fluid from said chamber to said cylinder, a regulating device in said means of communication, a piston in said cylinder adapted to be actuated by the pres sure of the fluid which passes through the rotary valve, a iston-rod, means connecting said piston-r0 with the rotary valve for operating the latter when the ressure of the fluid which passes through t c rotary valve is exerted against the piston, and a pressure.- counteracting sprin substantially as and for the purposes setorth.

5. A valve comprising a main chambered body, a ported rotary valve in said chamber, a cylinder upon the outside of said chambered body, a means of'communication between said cylinder and the chambered body for conducting the fluid from said chamber to said cylinder, a regulating device in said means of communication,- a piston'in said cylinder adapted to be actuated by the prestween said cylinder and the chambered body for conducting the fluid from said chamber to said cylinder, a regulating device in said means of communication, a piston in said cylinder adapted to be actuated by the pressure of the fluid which passes through the rotary valve, a piston-rod, means connecting said piston-rod with the rotary valve for o crating the latter when the pressure of t e fluid which passes throfigh the rotaryv valve is exerted against the piston, and a pressurecounteracting spring, and means for locking the rotary valve in its closed position, consisting of a depression formed in the pistonrod, and a spring-controlled pin adapted to be forced into said depression when located olppositesaid pin, substantially as and for t e purposes set forth.

7. A valve comprising a main chambered "body, a ported rotary valve in said chamber,

a stem on'said valve, said stem projecting from said chamber, a cylinder upon the outside of said chambered body, a means of ICO communication between said cylinder and 'the chambered body for conducting the fluid from said chamber to said cylinder, a regulating device in saidmeans of communication,

a piston in said cylinder adapted to be actu ated by the pressure of the fluid which passes through the rotary valve, a pistomrod, a slide on said piston-rod, said slide being provided with an extension, a stud on saidextension, a crank on said valve-stem, said crank being provided with an elongated hole into which said stud extends and is in operative engagement therewith, and a pressurecounteracting spring exerting its ressure upon said slide, substantially as and for the purposes set forth. -8. A valve comprising a main chambered body, a ported rotary valve in said chamber, a stem on said valve, said stem projecting from said chamber, a cylinder upon the outside of said chambered body, a means of through the rotary valve, a piston-rod, a slide on said piston-rod, said slide being provided with an extension, a stud on said extension, a' crank on said valve-stem, said crank being provided with an elongated hole into which said stud extends and is in operative engagement therewith, and a pressurecounteractmg sprin exerting its ressure upon said slide, an means for locliing the rotary valve in its closed position, substantially as and for the purposes set forth.

9. A valve comprising a main chambered I body, a portedrotary valve in said chamber,

a stem on said valve, said stem projecting from said chamber, a cylinder upon the outtive engagement therewith, and a pressurecounteracting sprin exerting its pressure upon'said slide, an means for locking the rotary valve in its closed position, conslstmg of a depression formed with the piston-rod, and a spring-controlled pin adapted to be forced into said depression when located opposite said pin, substantially as and for the purposes set forth.

10. A valve comprising a main chamberedbod y, a ported rotary valve in said chamber, a stem on said valve, said stem projecting from said chamber, a cylinder upon the outside of said chambered body, a means of communication between said cylinder and the chambered body, a piston in said cylinder adapted to be actuated by the pressure of the fluid which passes through the rotary valve, a piston-rod, a slide connected with the upper end of said piston-rod, said-slide being provided with an extension, a crank on said valve-stem, said crank being provided with an elongated hole into which said stud extends and is in operative engagement therewith, an arm extending from the upper ortion of said main valvebody, said arm having a screw-threaded hole, a tubular tension-adjusting device in said hole, a rod con. nected with the upper portion of said slide, said rod having its upper end portion extending into and movably arranged in the tubular portion of said adjusting device, and a pressure-counteracting spring encircling said rod and having its respective ends in engagement with said adjusting device and the upper portion of the slide, substantially as and for the purposes set forth.

11. A valvecomprisin a main chambered body, a ported rotary v ve in said chamber, a stem on said valve, said stem projecting from said chamber, a cylinder upon the outside of said chambered .bod a means of communication between sai -.cylinder and the chambered body, a piston in said cylinder ada of the uid which (passes through the rota valve, a piston-r0 a slide connected wit the upper end of said piston-rod, said slide being rovided with an extension, a crank on sai valve-stem, said crank being provided with an elongated hole into which said stud. extends and is in operative engagement therewith, an arm extending from the upper portion of said main valve-body, said arm aving a screw-threaded hole, a tubular tension-adjusting device in said hole, a rod connected with the upper portion of said slide, said rod having its up er end portion extendinginto and mova ly arrangedin the tubular portion of said adjusting device, and a pressure-counteracting spring encircling sai rod and having its respective ends in engagement with said adjusting device and the upper portion of the slide, and means for ted to be actuated by the pressure locking the rotary valve in its closed position,

substantially as and for the purposes set forth.

12. A valve comprising a main chambered body, a ported rotary valve in said chamber, a stem on said valve, said stem projecting from said chamber, acylinder upon the outside of said chambered body, a means of communication between said cylinder and the chambered body, a piston in said cylinder adapted to be actuated by the pressure of the fluid which passes through the rotary valve, a piston-rod, a slide connected with the upper end of said pistonrod, said slide being provided with an extension, a crank onsaidvalvestem, said crank bein provided with an. elongated hole into whic said stud extends and is in operative engagement therewith, an arm extending from the upper ortion of said main valve-body, said arm aving a screwthreaded hole, a tubular tension-adjusting device in said hole, a rod connected with the upper portion of said slide, said rod having its upper end portion extending into and mova y arranged in the tubular portion of said adjusting device, and a pressure-counteracting spring encircling said rod and having its respective ends in engagement with said ad' justing device and the upper portion of the slide, and means for locking the rotary valve in its closed position, consisting. of a depression formed in the'piston-rod, and a springcontrolled pin adapted to be forced into said deression when located opposite said pin, puhslfantially as and for the purposes set ort i 13. A valve comprising a main chambered body, an inlet member and an outlet member said chambered body having aclosed cydrical rojection at one end and an openended cy indricaLproj ection at its otherend, said,projections forimng cylindrical bearings or seats in the opposite sides of the chamber, a rotary valve-plug in said body, com risin a doub e-ported semicylindrical body orme at its ends with a pair of c lindrical members, each cylindrical mem er being rotatably arranged in a cylindrical bearing or seat, and a stem extending from one of the c lindric-al members of said valve plug tl irough said open-ended cylindrical projection, substantially as and for the purposes set forth.

14. A valve com rising a main chambered body, an inlet mem er and an outlet member, said chambered body having a closed cylin drical projection at one end and an openended cylindrical projection at its other end, said projections forming cylindrical bearings or seats in the opposite sides of the chamber, a rotary valvelug in said bod comprisin a double-porte semicylindrical body formed at its ends with a pair of cylindrical members, each cylindrical member being rotatably arranged in a'cylin'drical bearing or seat, and astem extendingfrom one of the cylindrical members of said valve-plug t ough said open-ended cylindrical projection, and means connected with said stem for producing a rotary motion of the valve-plug,

substantially as and for the purposes set forth.

- 15. The combination, with a rotary valve and its casing,'ofa valve-controlling means, consistin of a cylinder and its piston located outside 0 the-valve-casing, means for exerting pressure upon one side of the piston, means for operatively coupling'said piston with the rotary valve, for controlling-and regulating said valvefand means for disconnecting said valve-controlling means from the control of said rotary valve, substantially as and for the purposes set forth. I

16. The combination, with a rotary valve body of avalve-casing, said body being provided with oppositely located cylindrical bearings or seats, and a laterally-extending member- 21 forming with the sides of said bodyfports' 19 and 20, of a valve-plu in said chambered body comprisin orted main semicylindrical portion, and cy lindrical members, each cylindrical member being rotatably arranged in a cylindrical bearing or seat, said valve-plu comprising two members 16 and 17 forme with upper fiat faces, and an intermediate angular member 18, all arranged to form ports 14 and 15, substantially as and for the purposes set forth, In testimony that I claim the invention set forth above I have hereunto set my hand this 17th day of July, 1906.

ADAM HARKNESS.

' Witnesses:

FREDK. C. FRAENTZEL, FREDERICK JAMISON.

a dou le-.

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