US1364060A - Valve - Google Patents

Description

l0. M. JONES.

VALVE.

yAPPLICATION FILED MAR'. 26. 1917. 1,364,060, Patented Dee. 28,1920.

a SHEETS-SHEET l.

l hw l ,l// I l l/ t r l Y o. M. JONES. VALVE.

APRLICATION FILED MAR`26, 1917.

Patented Dec. 28, 1920.

3 SHEETS-SHEET 2.

0-. M. JONES.

VALVE. APPLICATION FILED MAR. 2e, I9I7.

Patented Dec. 28, 1920.

3 SHEETS-SHEET 3.

/1 TTOR/VEY OWEN MARSHALL JONES, F NEW YORK, N. Y.

VALVE.

Specification of Letters Patent.

Patented Dec. 28, 1920.

. Application filed March 26, 1917. Serial No. 157,449.

/ 1o all whom t may conce-rn Be it known that l, OWEN MARSHALL JONES, a citizen of the United States, and a resident of the borough of Manhattan, city, county, and State of New York, have 1nvented certain new and useful Improvements in Valves, of which the following is a specification, accompanied by drawings.

The invention relates to improvements in valves, Vbut in particular to improvements in valves commonly known as pilot valves, which are used to admit a-nd shut-off alternately the feed of fluid pressure employed to actuate a device or a part of a device, although the invention may be used in any connection in which it is found applicable.

The objects of the invention are to improve upon and increase the efliciency of pilot valves.

Other objects of the invention are to increase the durability of pilot valves by ar ranging combinations of parts so that as many of the parts as possible will follow up their own wear, thereby minimizing the chances of the valves becoming leaky.

Further objects of the invention are to produce two pilot valves, or a duplex pilot valve, in one valve body.

rFhe single pilot valves and the duplex pilot valves having features of construction, combinations of elements, and arrangement of parts, as hereinafter described and claimed in this specification, and shown in the accompanying drawings, in which- Figure 1 is a side elevation, partly in section, of a horizontal single pilot valve.

Fig. 2 is an end elevation of Fig. 1.

Fig. 3 is a plan view of the faced side of one of the valves, and an edge view of the valve showing a section of the valve stem.

Fig. 4 is a plan view of the faced side of another one of the valves.

Fig. 5 is a plan view of the back side of one of the valve seats.

Fig. 6 is a side elevation, partly in section, of a vertical modified form of a single pilot valve.

Fig. 7 is an elevation of Fig. 6, showing the yoke that rotates the valve stem.

Fig. 8 is a plan view of the top side of a spirally grooved rotative member.

Fig. v9 is an elevation of a Section of the valve stem.

Fig. 10 is a side elevation, partly in section, showing an application of the single pilot, valve.

Fig. 11 is a side elevation, partly in seotion, of two pilot valves or what may be commonly termed a duplex pilot valve contained in one shell or casing.

Fig. 12 is a plan view looking down on Fig. 11. y

Fig. 13 is a side elevation, partly in section, showing an application of one form of the duplex pilot valve.

Fig. 14 is a side view, partly in section, of a modification of Fig. 11.

Fig. 15 is an elevation of Fig. 14, showing the yoke that rotates the valve stems.

It is to be noted that the` several valve seats in any one of the pilot valves may be held permanently in place by various methods; therefore, I do not show any details of the method for retaining them in place, and do not limit myself to any specific method. Also, it is to be noted that I do not limit myself to any special shapes of the ends of the several stem sections for engaging the several sections of which the completed stem is composed, nor to any special number or shape of ports or apertures through the valves and the valve seats.

Referring to the drawings, in Fig. 1 l. have shown a single pilot valve with its body in a horizontal plane and the stein and valves therein revolved by a fork vshaped lever'. 1 is a body or casing of the valve. 2 is a head to cover the pressure end of the valve body. 3 is a head to cover the exhaust end of the valve body. 4 is a sectional stem which revolves the valves. 6 is the inlet to the inlet chamber. 5 is the outlet for the exhaust from the exhaust chamber. 43 is a port that connects the combined outlet and inlet chamber 10 with the combined outlet and inlet 13 shown in elevation in Fig. 2. 19 is a passage connecting the inlet chamber 8 and the inlet of the valve body. 2O is a passage connecting the exhaust chamber 12 with the exhaust outlet of--the valve body. 14 is a pin for supporting one end of the fork shaped lever. 9 is the inlet valve seat, which may be an integral part of the valve body or a separate member suitably held in place in the valve body, and may have at least one aperture through'it. 11 is the exhaust valve seat, which will be suitably held in place in the valve body, and may have at least one aperture through it. 7 is a pin 0r lug attached to the head 2 to hold the valve S in position. 8 is a revolving valve with at least one aperture through it to correspond with the valve seat 9. 10 is a revolving valve with at least one aperture through it to correspond with the valve seat 11. 12 is a revolving disk which bears against the end of the head 3 for preventing leakage around the valve stem and through Vthe valve headv 3. The two valves and the disk may be rigidly mountedon the sectional stem or may be enlargements of the stem. placed between the outside surface of the head 3 and the collar 23, and is kept under tension to hold the disk 12 against the inner end surface of the head 3. 15 is a fork shaped lever with one end of it attached to the section 35 of the sectional stem and the other end loosely placed over the pin 14, and is7 as shown, made of two sections bolted together. a is an offset end of one section of the lever. 16 represents the end of the means which operates the lever. 18 is a bolt for engaging 16 with the lever. 35, 35; 34, 33 and 32 are sections comprising the sectional stem. 35 may be attached to the face of the disk 12, 35 may be attached to the back of the disk 12; 34 may be attached to the face of disk 10; 33 may be attached to the back of 'l the disk 10, 32 may be attached to the face of the disk 8. Or

the sections of the stem may be integral parts of the corresponding valves and the disk. The stem as shown is with the several sections in a direct line7 and with the intermediate ends engaged so that there can be a sliding movement between the sections; in this manner the sections attached to the valve 10 can float longitudinally forward or backward as there is a space between the ends of the flattened ends of the sections and the bottoms of the` grooves in the grooved ends of the sections; this permits cach valve to move independently of the other valve so as to follow up the wear on the faces of the valves or the wear on the faces of the seats against which the valves seat. It is to be noted that as the f-ace of the disk 12 or the inner faced end of the head 3 wears the stem section 35 will protrude farther through the head 3 and the end 25 of the lever will travel with this stem section and the end 27 of the lever will slide on the pin 14 in the same direction and the bolt 18 will slide through the end of part 16. By the construction of the lever above described it is shown that the lever travels longitudinally with the above mentioned wear of the disk 12 or the inner end of the head 3 without putting a sidewise pressure on the part 16 and thereby eliminating extra friction in the movement of the lever. For convenience the lever is shown in the plan view while in actual operation the ends of the lever will be in a horizontal position as shown in Fig. 2. 28 is an aperture through the inlet valve 8. 29 is an aperture through the inlet valve seat 9. 30 is an aperture through the exhaust valve 10, 3l is an aper 22 is a spring ture through the exhaust valve seat 11. The operation of this form of valve is as follows: By referring to the drawing it will be seen that the aperture through the exhaust valve is in register with the aperture through its seat, and the aperture through the inlet valve is out of register with the aperture through its seat. While the valves are in these positions there is no pressure in the chambers 10 and 12 as the fluid which creates the vpressure has been exhausted through the exhaust valve and lexhaust chamber to atmosphere.Vv lVhen the valve stem is revolved the aperture in the inlet valve registers with the aperture in its seat and the exhaust apertures are moved out of register; then the fluid under pressure passes through the inlet valve and enters into the chamber 10 and out through the port 43 and the combined outlet andinlet 13 and to the device or part to be actuated.

` In Fig. 2, I have shown an end elevation of Fig. 1.V I have shown the lever 15 in its true position when it is ready for operation. 16 is a means for operating the lever 15 and is moved upwardly and downwardly by the beam 44, the beam 44 being actuated by suitable means.

In Figs. 6 and 7, I have shown a modification of Fig. 1 in so far as the form. and location of the inlet and the outlets7 and the means for revolving the stem are concerned. I have also shown the valve in a vertical position for operation. The passages 37 and 36 perform the same functions as the passages 19 and 20 respectively and all of the other parts within the valve body are the same in form and operation and perform the saine functions as in Fig. 1.Y 40 is a yoke with two pins 41 protruding from its inner sides. 33 is a spirally grooved rotative member which is mounted on the section 35 of the stem and is held rigidly in place by the set screw 39. 42 and 42 are lugs on the side of the valve body to act as guides for the yoke. The two pins 41 are for engaging the two grooves in the spirally grooved rotative member. 44 is a rod or beam which is suitably actuated and moves the 7oke u )ward and downward the Vo oeraf in a direction the reverse of its lirst move-.

ment thereby reciprocally revolving the stem which revolves the valves in a similar manner and for the same purposes as the two valves in Fig. 1 are moved.

In Fig. 10, I have shown a type of damper regulator as one of the applications of the pilot valve of the construction shown in Fig. 6 but l have not shov'vlfn'the pilot valve in Section as the description of the pilot valve in Fig. 1 and Fig. 6 isclear asto its functions and operation which were explained in the description of Fig. 1 in connect-ion with the damper regulator lshown inY Fig. 10. The damper regulator' is Oneapplication for the pilot valve. The damper regulator is for opening and closing the damper in the smoke stack Vof a boiler when the steam pressure lowers or rises respectively. The steam is connected from the boiler vto the chamber 45 through the pipe 46. When the predetermined mean pressure obtains in the boiler the weight 47 on the beam 44 holds down the diaphragm `b` and the beam holds down the yoke -40 of the pilot valve, when in that position theinlet valve in the pilot valve is closed. When the steam pres'- sure rises above the predetermined mean pressure the diaphragm b raises V the beam 44 whiclimoves up the yoke 40 of the pilot valve, the exhaust valve is closed 'and the inlet valve is opened, the `water pressure which operates the piston 51 enters -through the inlet valve into'the cmbined outlet and inlet chamber and out through the opening 13 and passes through the pipe 48 and enters the chamber 49 rvand forces lthe piston 51 upwardly andthe weight 58n the damper arm closes the damper. When the steam pressure lowers to thepredetermined mean pressure the beam 44 moves down to the position shown and closes the inletl valve in the pilot valve body and opens the exhaust valve thereby rreleasing the pressure under the piston 51 and the weights 53 mounted on the rod 52 push the piston downwardly and by means of the rope or chain 54 pulls the Idamper arm upwardly thereby again opening the damper.

Iu'Fig. 11, I have shown two ,pilot valves or a duplex pilot valve in one shell providing a valve *bodyv for 'casing for, each pilot valve. The center chamber 76 Shown inthe shell is the inlet chamber for both pilot valves. A valve of this construction is suitable for lo-Jeratingtwo devices or for operating a piston in reciprocating motion. Fluid pressure is employed for operating Athe devices or the pistn and is centrolled by the pilot valve. 61 is the valve body or casing. 62 is 'a head for covering the 'tp end of the valve body. 63 is a head for covering the bottom end ofthe valve body. 7 6,"is fthe inlet chamber into which the fluid enters and serves both pilot valves asV the inlet chamber. 7 8 is a combined outlet and inlet chamber from which the fluid passes to a part to be actuated and into which the fluid enters from the part actuated to exhaust Ithe fluid. is an exhaust chamber into "which the fluid is exhausted `fr'ol'n'th'e ehamber 78. 74 'is I'ceiilbi'ed liut/let 'and inlet l"elzi'aiibe'r fromwhich the fluid passes to a part to be actuated and into which the fluid enters from the part actuated to exhaustdthe fluid. 72 is an exhaust chamber into which the fluid is exhausted from the chamber 74.` 73, 7 5, 78 and 80 are valve seats which may have at least one aperture through them. 74 and 79 are revolving exhaust valves with at least one aperture through each of them to register with the apertures in their corresponding seats. 76 and 77 are revolving inlet valves which may have at least one aperture through them to register with the apertures through their corresponding seats. 64 is a revolving sectional stem. 64, 65, 66, 67, 68, 69, 70, 70', and 71 are the sections of which the revolving stem consists. 38 is a spirally grooved rotative member which is held in place on the outer end of the stem, and this member is revolved by the pins on the inner sides of a yoke such as is shown in, Fig. 7 and described in the description of Fig. 6, and is for revolving the stem. 72 is a disk which seats on and revolves on the faced inside end of the head 62, and is to )revent the leaking of the fluid around the stem and through the head 62. 22 is a spring lwith one of its ends bearing on the head 62 and the other end bearing against the ring 23, and is for holding the disk 72 against the inside faced end of the head 62. 83 is an inlet for admitting the fluid into the inlet chamber. 82 and 84 are each a combined outlet from and an inlet to the chambers 74 and 78 respectively. 86 and 87 are passages to connect the exhaust chambers with the passage 88 so that fluid from both exhaust chambers is exhausted through one exhaust outlet. is an outlet in the side of the valve body through which the fluid is exhausted from the passage 88. 92 is an aperture through the valve 87. 91 is an aperture through the seat 78. is an aperture through the valve 79. 89 is an aperture through the seat 80. 93 is an aperture through the valve 76. 94 is an aperture through the seat 75. 95 is an aperture through the valve 74. 96 is an aperture through the seat 73. By the construction as shown it will .be clearly seen that the valve body contains two pilot valves with one pilot valve in the top half of the body and one pilot valve in the bottom half of the body, and both pilot valves being fed through a common inlet chamber and having a common exhaust outlet, and being operated by one stem. The operation is as follows: In describing the operation I will refer to Figs. 7, 10 and 13. It is to be noted that one pilot valve operates reversely of the other, as one is admitting fluid to the part to be actuated, the other is permitting the exhaust of the fluid and vice versa. For example, the duplex pilot valve vcan be applied for eperating a piston in reciprocating movements such as the piston 103in the cylinder 1 ()1 in Fig. 13, which maybe required for operating a damper regulator, and thecylinder 101 is substituted lfor the 'cylinder c of Fig. 10 and weights are not mounted on the rod 104, the pilot valve being actuated by a yoke as shown in Figs. 7

and 10. The piston has finished its downward travel and the valve` stem has been 'revolved, and, as shown in Fig. 11, the upper inlet valve has been closed thereby cutting off the pressure inthe chamber 74', the upper exhaust valve has been opened, the lower` inlet valve has been opened, and the lower exhaust valve has been closed. The Huid entering the inlet chamber through the inlet 83 will pass through the apertures of the valve 77 and the seat 78 into the chamber 78 and out through the outlet 84 and through the pipe 98 and the port 107 to the under side of the piston and will Vforce the piston up. The fluid on the top of the piston will be pushed out of the chamber through the port 108V and the pipe 99 and the inlet 82 into the chamber 74 and out through the apertures of the valve 74 and the seat 7 3 into the exhaustv chamber 72 and out through the passages 87 and 88 and the outlet 85 to atmosphere. When the piston reaches .the top of the cylinder the damper has been closed. When the steam pressure inY the boiler falls back to the predetermined mean pressure then the beam 44 lowers and pulls down the yoke 4() and the valve stem is reversely revolved and the valves of the pilot valves are revolved so that the apertures through the several valves are in reverse positions of those shown in Fig. 11. This will place the apertures of the inlet valve 77 and the seat 78 out of register thereby closing the valve 77 and cutting oil fluid pressure from the chamber 78, and will place the apertures of the exhaust valve 79 and the seat 8O in register thereby relieving the pressure under the piston, and will place the apertures of the exhaust valve 74 and the seat 73 out of register and the apertures of the inlet valve 76 and the seat 75 in register. Then the fluid from the inlet chamber' will pass into the chamber 74 and out through the outlet 82 and then pass through the pipe 99 and the port 108 to the top side of the piston and will force the piston downwardly. Then the -fluid under the piston will 'be pushed out through the port 107 and through the pipe 9S and the inlet 84 to the chamber 78 and through the apertures of the exhaust valve 79 and the sea 80 into theV exhaust chamber and out through the passages 86 and 88 and the outlet 85 to atmosphere. When the piston reaches the bottom of the cylinder then the damper is open again.

In Fig. 14, I have shown a modification of Fig. 11, in so Vfar that inv this ligure I have used two 'revolving valve stems one of them for revolving lthe inlet valve and the exhaust valve of ythe upper pilot valve., and the other stem for revolving theinlet valve and the exhaust valve of the lower pilot valve. Also 7 0 l have shown a spirally grooved rotative member mounted on the protruding end of each of Ithe two stems rorv revolving the stems. v With the exception of the stems, the valve body and all the other parts are the same, are for the same functions, perform the same "functions, and operate the'same, as the similar-parts in Fig. 11. Asthe two stems can-'be revolved in the same direction they are anequivalent in operation of the stems in Fig. 11. K "j In Fig. 15, I have shown a side elevation of Fig..14 with the yoke yfor revolving kthe two spirali-y grooved rotative members.l 41 and 41a are p insfor engaging the grooves 85' e and f in therupper rotative member, 41" and 41c are pins for engaging the groves e and j" in the lower rotative member. As Vthe grooves in both of the rotative members can be made to be spiral in the same direction, 90 therefore the two members can be revolved simultaneously in the same direction, when thegyeke travels upwardly or downwardly as the yoke is lactuated by suitable means. The grooves in one of the rotative members can be'made spiral. in ar direction opposite to the direction' of the spiral in the other member, thereby making it possible for the two rotative members to be revolved in opposite directions.

Obviously, some features, partsor Lconstructions may be used without others, and in combination with others, or may be embodied inwidely varying forms.

Therefore, without. limiting myselfto the construction and arrangementxof parts as shown and describednor without enumeratlng equivalents, IV claim anddesire to obtain by Letters Patent thefollowing :1

1'. In a valve, the combination of a casing 110r or body with a plurality of chambers,va plurality of-revolvingported valves, a plurality of apertured valve seats, a revolving valve stem composed of a plurality of sections constructed in a manner by which the stem may automatically lengthen or shorten, and suitable means for actuating the said stem.V

2. Ina valve, the combinationof a casing .or bodyVv with a plurality of chambers, a y

l -P 1 ,v n e plui ality or lei olvmg ported valves, a plurality of apertured valve seats, and a revolving valve stem composed of a plurality oi sections suitably engaged at their several ends intermediate oil the terminal ends of the stem to allow longitudinal travel of any one of the intermediate sections independently of any of the other sections.

1l. In a valve, the combination oi a casing or body with a plurality of chambers, a plurality of revolving apertured valves, a plurality of apertured valve seats, and a revolving valve stem composed of a plurality of sections vsuitably engaged at their several ends intermediate of the terminal ends of the stem to allow longitudinal travel of one or both of the terminal sections independently ot any longitudinal travel oi the intermediate sections.

5. ln a valve, the combination of a casing or body providing a plurality of ported chambers, a plurality of ported valve seats, a plurality of ported valves, a revolving valve stem composed of a plurality of sections with the intermediate ends of the sections suitably engaged to allow longitudinal travel of one section independently of the other sections and the intermediate ends re# maining engaged so that the said valves which are attached to the stem can be revolved by the stem, and suitable means for actuating said stem.

6. In a valve, the combination of a valve casing or body having an inlet end, an exhaust outlet, an opening in the said body acting as both an outlet from and an inlet to the valve body, an inlet chamber, a combined outlet chamber and inlet chamber, an exhaust chamber, a plurality of ported valve seats, an apertured inlet valve and an apertured exhaust valve mounted on one revolving sectional valve stem, and suitable means for actuating the said stem.

7. ln a valve, the combination of' a valve body or casing having an inlet end, an ex-l haust outlet, an opening in the said body acting as both an outlet from and an inlet to the said body, an inlet chamber, a combined outlet and inlet chamber, an exhaust chamber, a plurality of valve seats with at least one aperture through each of them, a plurality or revolving valves with at least one aperture through each of them, a valve stem for revolving the said valves composed of a plurality of sections with the intermediate ends suitably engaged to form a complete stem and to allow any section to travel longitudinally with the axis of the stem independently of the other sections, and suitable means to revolve the said valve stem.

8. In a valve, the combination of a valve body or casing having an inlet end, and an exhaust outlet, an opening in the said body acting as both an outlet from and an inlet to the said body, an inlet chamber, a

combined outlet and inlet chamber, an exhaust chamber, a plurality of valve seats with at least one aperture through each of them, a plurality of revolving valves with apertures to correspond with the apertures in their respective seats, a valve stem Jfor revolving the said valves composed of a plurality of sections with the intermediate ends suitably engaged to form a complete stem and to allow a section to travel longitudinally with the axis of the stem independently of any other section, a spirally grooved rotative member attached to and for revolving the said valve stem, and a yoke with pins on its inner sides to slide in the grooves of the said rotative member to revolve the said member clockwise and anticlockwise when the yoke is moved upwardly and downwardly by suitable means.

9. ln a valve, the combination of a valve body or casing having an inlet and an eX- haust outlet, an opening in the side oi the said body acting as both an outlet from and an inlet to the said body, an inlet chamber, a combined outlet and inlet chamber, an exhaust chamber, a plurality of valve seats with at least one aperture through each of them, a plurality of revolving valves suitably mounted on a valve stem for revolving the said valves composed of a plurality o sections with the intermediate ends suitably engaged to form a complete stem and to allow any section to travel longitudinally with the axis of the stem independently of any other section, and suitable means for revolving the said valve stem.

l0. ln a valve, the combination of a valve body or casing having an inlet, an exhaust outlet, an opening in the side ot the said body which is both an outlet from and an inlet to the said valve body, an inlet chamber, a combined outlet and inlet chamber, an exhaust chamber, a. revolving ported inlet valve and a valve seat located between the said inlet chamber and the said combined outlet and inlet chamber, a revolving ported exhaust valve and a valve seat located between the said combined outlet and inlet chamber and the said exhaust chamber, a revolving sectional valve stem on which the said valves are mounted for revolving'the said valves clockwise and anticlockwise to place the portsV in the said valves in register with and out of register with the ports in the said valve seats, and suitable means for revolving the said stem.

ll. In a valve, the combination of a valve body or casing having an inlet for fluid un der pressure, an exhaust outlet, an opening in the side of the said body acting as both an outlet from and an' inlet to the said body, an inlet chamber, a combined outlet and inlet chamber, an exhaust chamber, two valve seats with at leasty one aperture through each of them, two revolving valves suitably mounted on a valve stem with at least one aperture, each to register with the apertures in their respective seats, a sectional valve stem for revolving the said two valves, and means for revolving the said stem.

12. A valve comprising a shell providing a plurality of longitudinally alined chambers therein and an inlet and a plurality of outlets through its wall, a plurality of revolving apertured valves operatable within the said shell, a plurality of ported valve seats within the said shell to accommodate the said valves, and a revolving valve stem for actuating the said valves composed of a plurality of sections suitably engaged at their several ends intermediate of the terminal ends of the stem to allow longitudinal travel of an intermediate section independently of any longitudinal travel of the terminal sections, and suitable means to actuate the said stem.

13. A valve comprising a shell providing a plurality of longitudinally alined chambers therein and an inlet and a plurality of outlets through its wall, a plurality of revolving ported valves operatable within the said shell, a plurality of apertured valve seats within the said shell to accommodate the said valves, and a revolving valve stem for actuating the said valves composed of a plurality of sections suitably engaged at their several ends intermediate of the terminal ends of the stem to allow longitudinal travel of any one of the sections independently of any of the other sections and suit.- able means to actuate the said stem. p

14. A valve comprising a shell providing a plurality of longitudinally alined chambers therein and an inlet and a plurality of outlets through its wall, a plurality of ported valve seats within the said shell, a plurality of revolving ported valves operatable within said shell, a revolving valve stem composed of a plurality of sections with the intermediate ends of the sections suitably engaged to allow longitudinal travel y of any one section independently of the other sections and the intermediate ends remaining engaged so that the said valves which are attached to the stem can be revolved by the stem, and suitable means for actuating the said stem.

In testimony whereof I have signed this specification in the presence of a subscribing witness. Y

OWEN MARSHALL JONES,

fitness LAURA E. SMITH.

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