US2450481A - Duplex control valve device - Google Patents

Description

Gein. 5, 1948. H. c. MAY

DUPLEX coNTRorJ VALVE DEVICE 4Filed July s1, 1945 INVENTOR HARRY Q MAY ATTORNEY 7a P10222@ vow.;

I 55 no 58 3V H6 m zo 'erative to produce vertical" onhorizont'alrno'v A Patented Oct. 5, .1948' DUPLEXCN-TROL Harry C.

vALvEaDEv-Ionl Applicatinncl 31,1943, seriaLN 496,868 iaol'is (olfzsifi-cr two movements.

A `further object-o; the invention i`s;to"p1ni` vide a single cont-rol"valve' device""whichconr trols the rate of movementoftliemechanismppe:

ment or any combination of 'the 'two :noviemetsl`l A still furtherobjectof the invention'isi to "pro: vide a control Valve` device, With;a singleoDrating handle for controlling, operationof id'pr'e's'r' sure mechanism capable .of .producing wverticalv` ,255 or horizontal movementor'anycornbinationof the two movements,` which "handlelis ',autorn'atil, cally returnable to -a neutral"position"whelfrndgl. by the operator.

Other objects and 'advantages '.Willb" apparenti' 30 from the following nmore:detailed:Y description;= "of", the invention.'

In the accompanying drawing ,1

Fig. 1 is a ydiagrarn'matic View "of .a.iliioV pr'essure system'. partly in section; ,embodyig'fthe' 35AA invention;

Fig. 2 is a sectional viewof the'controlfvalie' device taken along the line.` ZJ-Z'of 4Fig. 3 is a sectional view offthecontrolfvalve device taken along the line34l-3of`i1igi2l, l

Fig. 4 isla sectional view'of the controlfvalv i devicel taken'along Ythe line '4i-4 of Figlf3` Y Fig.`5 is a sectional view ofithecontrolivalve' device taken along the lin'e 51-'5' of Fig.; 1.'I

Figy is a plan view'of the control valv'eidevice' 45' looking in the direction' indicatedbylfth line 6 6 of Fig. 1.

In Fig. 1 of .the drawing .a iidlpr'es's'iesyst is shown in whiclia control valve deviceembodyijig, the invention is used.'L This"system"comprises 56 control valve device l and a pair`of` double" act' ing uid pressure motors 2 'and'3fthmoto'r-2 be'- ing operative to eiect vertc'a'l'mvementof 'a'.dee. vice to 'be operate-d'sucliior instance" as' 'a search'.

horizontal. movement 'the device" to'i'be operated:

For' .the purpose. ofi illustrationthecontroivalve device] has. been shown"associated withtliedou= ble l iiid priessu'rjeV nio-tor`s2 "'and' lout it'will* be understood that" this" is. merely A illustrative and that the controlvalve devicel 'may-bemusedrtof control tlie'supply'jof uid'under pressureto and thelreleas'e of 'fluid' under 'pressureA from anyfde'- sir'edty'pe 'of fluid 1:ne's`sure'" 'operated ymechanism -`where a,n plurality" of controlled 'actuators'areenrr-w L horizontal movement' onanyicombinationofthe L15^5tures Tand B'throughwhich bolts'pr th'elikef'mot" shown). maypas's' f o'rl rigidly securingthe Leasing" to. aleracket oiitlie-like.L

lto the casing in' any suitable manner "such asiloy-r nuts I 3 having. screw-threaded 'engalgi/rent'wtli" polsedithiough ports. VOperativelylrnountd`1c5r both rotaryandfvertioall movementl iri 'the' bush: ing..|5 isvavv'alve' 16.-". Thisv valv'el'is'providedivitli" a stem jl T whichexten'dsitlirougha centralaper'- is` gasket-fl 9`for preventing'leaka'ge of fluid' along cross port 22""is`. connected 'through'. a; plurality "ofi passagesZ 3`with"a chamber 24"formed"bythejj wall" lmofth'e casing-fthej topi-ofthe valve"*l and tliewallsof'the'bore 9 whenthevalv'e: isiin thef'psitionshown: At" each'end of athe4 cross port-A f' -Zas clearly shown in Fig'B of'tlie l'drawin'garid` Vthe outer face of the valve IS is provided With/a 3 opposltely disposed supply cavities 25 which eX- tend longitudinally of the valve. These supply cavities are each provi-ded with lateral V-shaped extensions 21, the side walls of each extension converging toward each other. The upper and lower ends of the cavities 25 are also tapered in width. The bottom walls of the tapered portions of the cavities 25 and of the extensions 21 thereof slope upwardly and merge with the outer surface of the valve at the ends of the tapering portions. From this it will be understood that the ends of the cavities and the extensions 21 thereof taper in depth as well as in width, thus gradually reducing the now areas of these ends and extensions toward thin ends. In addition valve l5 is provided with a pair of oppositely disposed cavities 29. rThe side walls of the upper end of the cavity v2l) at each side of the valve converge toward each other and close the ends, the bottom of this portion of the groove sloping upwardly from the deepest portion of the cavity.

These tapering portions of the port 22 and cavities 25 and 29 are provided for the purpose of controlling the rate of now of fluid through the port and cavities as will hereinafter more fully appear under operation of the device.

As best shown in Fig. 2 the lower body casing 5 is provided intermediate its end with a supply chamber 30 which is in constant open communication with a supply pipe 3l which leads to a source of fluid under pressure (not shown). Intermediate the chamber 3i) and the wall I0 of the casing 5 there is a chamber 32 and a chamber 33. The chamber 32 is connected to one end of the uid pressure motor 2 by means of a pipe 34,

while the chamber 33 is connected to one end of the fluid pressure motor 3 by means of a pipe 35. The casing 5 is also provided with a chamber 36 and a chamber 31, which chambers are disposed intermediate the chamber 30 and the lower end of the casing. The chamber 35 is connected through a pipe 39 to the opposite end of the uid pressure motor 3 while the chamber 31 is connected through a pipe 40 to the opposite end of the fluid pressure motor 2.

The upper body casing 6 is provided at its lower end with an inwardly extending flange 4l which is rotatably mounted on the wall l of the lower body casing 5. As best shown in Figs. 2 and 6 of the drawing, rotary movement of this casing 6 is limited by a pin 42, carried by the lower body casing 5, engaging with one or the other of the ends of a slot 43 formed in the flange 4|,

The casing 6 is hollow and the open upper end is closed by a cover portion 44 which is secured to the casing E in any suitable manner such as by screws 45, as shown in Fig. l. rihe Casing 6 and cover portion 44 denne two horizontally aligned recesses for the reception of a pair oi ball bearing members 4G. Rotatably mounted in said bearing members is a shaft 41. The opposite ends of the shaft 41 extend to the exterior of the casing and are preferably screw-threaded. A pair of nuts 48, one having screw-threaded engagement with one end of the shaft and the other having screw-threaded engagement with the opposite end of the shaft, are employed to engage the bearings and hold them in position against shoulders 49 formed on the casing 6 and the cover 44.

The casingV 6 is provided with an outwardly projecting cylindrical portion G, Contained in this portion, as best shown in Fig. 4, is a pair of oppositely disposed spring actuated plungers 5l which engage opposite sides of an upwardly projecting arm 52 carried by a disc member 53 for a purpose hereinafter described. This disc member 53, as best shown in Figs. 2 and 4, is rigidly secured to the wall i5 of the lower casing 5 by means of a plurality of bolts 5d. rflois disc member together with the casing defines a groove which accommodates the flange il and serves to maintain the casing (i in its proper rotatable relationship with the casing 5. The member also serves to retain the gasket l5 in place.

The cover portion lf-fl is also provided with an outwardly projecting cylindrical portion 55 which extends at right angles to the cylindrical portion 5i). Contained in this portion 55 is a pair of oppositely disposed spring actuated plungers 5S which engage opposite sides of an upwardly extending arm 59 carried by a member 55 for a reason hereinafter described. The member it is provided `with a pair of spaced arms 5l and 62 which straddle the shaft 41.

The stem i1 or the valve l extends through a suitable aperture in the disc 53 and at its end has rigidly connected thereto one end of an extension (ill, which is offset in thedirection toward the right-hand as viewed in Fig. 2. The stem I1 passes through the lower end of the extension and has screw-threaded engagement with a nut 55 which engages the extension and holds it in place on the stem. The rigid connection between the stem l1 and the extension @Il is made by means of a pin @da which is secured to the extension and which has a close iit in a vertical groove (i452) provided in the stein This connection serves to prevent relative rotary movement between tne stem and extension and also serves to facilitate the proper positioning of the valve with relation to the stem in assembling the several parts of the valve device. The opposite end of the extension 64 is operatively connected to the shaft 41 by means of a pin 58 and a ball like member 55 carried by the pin. The pin passes through arm 62 of member til, the shaft l? and arm @l of member 55 at the opposite side of the shaft and through the member 5@ which is disposed in an opening 61 provided in the upper end of the extension 64. One end of the pin 63 projects outwardly beyond the arm '52 and has .screw-threaded connection with va nut 59 which engages the arm 52. When the nut is tightened it pulls the bolt 58 toward the left causing the member f5 to be drawn into clamping engagement with the member 55, thus making a rigid connection between the shaft 41 and the member This member 66 has a snug fit in the opening so that any movement of the shaft will be immediately transmitted to the extension It will however be understood that the member 55 is free to rock slightly relative to the extension when the shaft 41 is rotated to shift the valve vertically as will hereinafter be described.

For the purpose of rotating the shaft lll to eifect vertical movement of the connected valve l5 and for the purpose of rotating the upper body casing 5 to effect rotary movement of the valve l5 a handle 1&3 is provided. rlhis handle comprises a pair of spaced arms 12 and 'i3 which are connected to opposite ends of the shaft il by means of nuts 15 having screw-threaded engagement with the shaft 41 and engaging opposite sides of the arms 12 and 13 as clearly shown in bothFigs. l and 3.

The fluid pressure motors and 3 as shown in the present embodiment of the invention are identical in construction but for convenience in describing the operation different reference nunierals have been used to indicate similar parts.

4The motor 2 may comprise .a casing 18 in which there is disposed a double acting piston 19 having an operating stem 80. At one side ofthe piston 19 there is a chamber 83y which is in constant open communication with chamber 31 in the control valve device through pipe 40. At the opposite side of the piston is a chamber 34 which is in constant open communication with the chamber-32 through pipe 34.

The rnotor 3 may comprise la casing 05 in which there is disposed a double acting piston 86 having an operating stem 81. At one side of the piston 8S there is a chamber 00 which is in constant open communication with chamber 33 through the pipe 35. At the opposite side of this piston is a chamber 9,2 which is in `constant open cornmunication with the chamber 35 through the pipe 39.

Operation Assuming the handle 18 of the control valve device to be in the position shown and the sys tern charged with fluid under pressure, the valve i3 will be in the position shown and the supply pipe 3l and consequently the supply chamber 30 of the control valve device will be charged with iiuid under pressure. Fluid under pressure thus supplied to the supply chamber 30 flows therefrom through ports i053 and 50| in the bushing i5 to the supply cavities 25 in the valve i0. The chamber 24 above the valve li5 is connected to a discharge pipe it by way of passage 23 in the upper wall of the valve i0, cross port 22, discharge port 2|, enlarged chamber i i below the valve and a passage E03 in the bottom cap I2. With the valve in this position all other ports and cavities in the bushing are lapped. It should here be mentioned that the plunger mechanisms 5| and 58 yieldably maintain the several parts of the valve device in the positions just described against accidental movement.

It should here be noted that the chamber 23 above the valve it and the chamber below the valve 'are connected together and to the discharge pipe |02 so that the pressure acting on opposite ends of the valve are equal, thus the valve is balanced in a vertical direction. It will also be noted that the pressure in the supply chamber 30 acts on opposite sides of the valve so that the valve is balanced in a horizontal direction.

When it is desired to eiect movement of the piston 19 upwardly from the position in which it is shown in Fig. 1 of the drawing, the handle T0 of the control valve device i is rotated in a counterclockwise direction about the axis of shaft 41 from the neutral or normal position in which it is shown in Fig. 2. Clounterclockwise rotation of the handle 'le causes the shaft 41 and connected member 60 to rotate in the same direction. As the member 5071s thus rotated the arm 59 carried by the member causes a plunger |05 disposed in the spring actuated plunger mechanism 58 at the left-hand side of the arm be, as viewed in Fig. 2v of the drawing, to move inwardly against the opposing pressure or" a spring lili:` and the valve Iii is moved vertically upwardly through the medium of pin 03, member Se, extension 64 and stem i1, the member 6e rocking freely in the opening 61. It will be noted that counterclockwise rotation of the handle 'l0 will be brought to a stop when the top of the valve i3 engages the wall iii of the casing 5.

As the val-ve |0 is moved upwardly the supply chamber 30 in the control valve device is con- 6. ne'cted tothe chamber 8'4 `in the fluidv pressure motor 2" by way of ports |00 and. im inthe bushing f5, supply |cavities25l inthe valve i6, a pair of oppositelly disposed ports |01 in the bushing l5, chamber 32 in the casing and pipe 34. At the saine time therchamber 83 at the opposite side of the piston I9 in the iiuid pressure motor 2 is connected to the discharge pipe |02, by way of pipe 40, cham-ber 31 in the control valve device a pair of oppositely disposed ports |08 inthe bushing i5, cavities 29 in the valve |5, chamber and passage |03. With these communications established Vfluid under pressure is supplied to chamber 84 at the lower side of piston 19 in the motor 2' and fluid under pressure in chamber' 83 at the upper side of piston 19 is discharged so that the'piston 19 and attached stem 80 are caused to move upwardly from the position in which they are shown in the drawing. This upward movement of the piston 19 and attached stern may be employed, as hereinbefore mentioned, to actua-te search lights, gun turrets and yvarious kinds of machinery in one direction.

It shou-l-d here be mentioned that the speed-at which the piston 'i9y is caused to move is controlled by the rate of flow of fluid under pressure to and the release of fluid under pressure from opposite sides of the piston and that the rate of low of fluid under pressure may be 'controlled by the valve i6 in the controlling valve device If the'v movement of the handle 10 has been sufcient to bring the upper end of the valve into engagement with the wall |0'of the casing 5, the cavities 25 and 2-9 in the valve I6 will at this time be fully open, so that the supply of iiuid under pressure to chamber 84 and the release of fluid under pressure from the chamber 83 in the motor"2-wil'l be at a fast rate and as a result the piston 1-9 therein will move quickly upwardly.

If the hand-le 10 of the control valve device i is rotated,counterclockwise to any position intermediate the neutral position in which it is shown and its uppermost position in which cavities 25 and 29`v are fully open as above described, the tapering portion at the top of the supply cavities 2-5 will restrict the rate of ilow of fluid from the supply chamber 30 to the chamber 84 in the motor, and that the tapering portion at the top of the cavities 2S will restrict the rate of iiow of huid discharged from the chamber 33 in the motor.

`From the foregoing it will be understood that the piston 19 and attached rod 80 may be moved upwardly at the rate of speed desired by proper manipulation ofthe handle 10.

When the operator releases his grip on the handlel of the controlvalve device I, the spring |06 acting through the medium of the plunger |05 and the arm 59 ofthe member 60' causes the shaft 41 to rotate in a clockwise direction to thereby return the handle 10 to its neutral position, in which position it is brought to a stop by a shoulder |`|0 carried by the plunger |05 coming into engagement with stop ||2 provided on a guide member H3. As the shaft 41 and thereby the handle 10 are rotated clockwise as just described,v the valve I0 is moved downwardly to its neutral position as shown. VIn this position the cavities 25 andv 29 are lapped. "With the cavities 25 and 29 lapped further iiow of fluid under pres'- sure to chamber 84 in the motor 2 and the discharge of iiuid from chamber 83 in the motor is cut off so that the piston 19 will be maintained in its uppermost position.

Now whenit is desired to eiect movement of the piston 19 from its uppermost position to the position in which it is shown in the drawing, the handle 'l5 of the control valve device l is rotated in a clockwise direction about the aXis or the shaft 41 from its neutral position. This clockwise rotation of the handle 'l5 causes the shaft 47 and connected member 56 to rotate in the same direction thereby causing the arm 59 carried by the member to move a plunger I disposed in a guide member H5 of the spring actuated plunger mechanism 5S at the right-hand side of the arm, as viewed in Fig. 2', inwardly against the opposing pressure of a spring ll?. As the shaft fil is thus rotated the valve I5 is moved downwardly through the medium of pin E8, member 65, extension 55 and stem Ii and movement in this direction may be continued until the valve I6 is brought to a stop by the bottom of the valve engaging the inner wall H8 of the bottom cap member l2.

Downward movement of the valve I6 connects the supply chamber 35 in the casing 5 of the control valve device I with the chamber 83 in the motor 2 and at the same time connectsthe chamber 35 at the opposite side of the piston 'i9 in the motor 2 to the discharge pipe |52. The communication between the supply chamber 35 and the chamber 83 in the motor 2 is established by way of ports |50 and |5| in the bushing i5 supply cavities 25 in the valve I5 ports |58 in the bushing I5, chamber 37 in the control valve device and pipe 45. The communication between the chamber S5 in the motor 2 and the discharge pipe |02 is made by Way of pipe 3ft, chamber 32 in the control valve device, ports |51 in the bushing I5, cross port 22 in the valve, discharge port 2|, enlarged chambers I and passage |53. With these communications established the pressure of fluid in chamber 83 is increased and the pressure of fluid in chamber 85 is decreased thus causing the piston 'I9 to move downwardly from its upper position to the position in which it is shown in the drawing.

From the previous description in connection with effecting upward movement of the piston 'I9 it will be understood that the rate of flow of uid under pressure to and the release of fluid from opposite sides of the piston 'i9 in the motor 2 will determine the speed at which the piston is caused to move downwardly. It will also be understood that the rate of ow of fluid under pressure to the chamber S3 and the discharge of uid from the chamber 8f3 is controlled by the cavities 25 and cross port 22 respectively, the control being such thatiwhen the valve i5 is moved to its lowermost position inv which the valve engages the bottom cover I2 the cavities 25 and port 22 will be fully open to effect a fast rate of ow of fluid for quickly moving the piston i9 downwardly, and that the lower tapered portion of the cavities 25 and the lower tapered portion of the port 22 will restrict the rate of flow of the fluid to and from the motor and thereby the rate at which the piston i9 is moved when the valve i5 is moved to any position intermediate the position in which the cavities and port 22 are fully open and neutral position.

When further movement of the piston l5) is undesired, the operator releases his grip on the handle l and the spring actuated plunger mechanism 58 at the right-hand sidev of the arm 5S operates, in identically the same manner, as the similar mechanism, hereinbefore described, at the left-hand side of the arm 59, to rock the shaft 4l in a counterclockwise directionk and thereby the handle 'I0 and valve l5 to their neutral position in which the cavities 25 and port 22 are lapped.

When it is desired to eiect movement of the piston in the fluid pressure motor 3 in a direction toward the right-hand from the position in which it is viewed in the drawing, the handle 10 of the control valve device I is moved in a horizontal plane in the direction toward the lefthand from the neutral position in which it is shown in Figs. 1 and 3 of the drawing. 'This movement of the handle 'l0 causes the shaft 47 and thereby the upper body casing 5 with attached cover portion 44 to rotate in the same direction.

It will be noted that as the upper body casing 5 is thus rotated it moves relative to the arm 52 carried by the disc 53 since the disc is, as hereinbefore mentioned, rigidly secured to the lower body casing 5. As th'e casing 6 is thus rotated the arm 52 causes a plunger |25 disposed in the spring actuated plunger mechanism 5| at the right-hand side of the arm 52 to move inwardly against the opposing pressure of a spring |25 comprising a part of said mechanism. Movement of the shaft 47 in this direction, acts through the medium of pin 65, extension 5, member 55 and stem I'I to rotate the valve I5 in the same direction. It will be seen from an inspection of Fig. 5 of the drawing that such movement causes the valve |6 to rotate in a clockwise direction, and from an inspection of Fig. 6 it will be seen that such movement may be continued until brought to a stop by the pin 42 carried by the lower body casing 5 engaging the left-hand end of the slot 43 in the casing 6.

The valve It as it is rotated in a clockwise direction as just described, and as best shown in Fig. 5 establishes communication between supply chamber 3|) and chamber 35 by way of ports |59 and I5! in the bushing l5, cavities 25 in the valve and oppositely disposed ports |28 in the bushing I 5. At the same time said valve establishes communication between chamber 33 in the casing 5 and the discharge port 2| in the valve I6 by way of a pair of oppositely disposed ports |35 in the bushing i5 and cavities |32 in the valve I5. With these communications established, fluid under pressure is supplied to the chamber 92 at the lefthand side of piston 8B in the fluid pressure motor 3 by way of supply chamber Si), ports |80 and lI in bushing |5, cavities 25 in the valve I6 ports I 28 in the bushing, chamber 35 in the casing 5 and pipe 39. At the time the uid in chamber 9D at the right-hand side of the piston 85 in th'e motor 3 is released to the discharge pipe |52 by way of pipe 35, chamber 33 in the casing 5 of the control valve device I, ports |35 in the bushing I5, cavities |32 in the valve I6, discharge port 2|, chamber I I and passage |03 in th'e bottom cap I2, so that the piston 85 and attached stem 81 are caused to move in a direction toward the righthand from the position in which theyare shown in Fig. l of the drawing. Each of th'e cavities |32 is provided at each end with a shallow or restricted narrow extension |32a.

If the handle 'i5 and thereby the upper body casing 6 are rotated in a direction toward the left-hand until brought to a stop by the pin 42 carried by the stationary casing 5 engaging the left-hand end of the slot 43, the cavities 25 and |32 in the valve I6 will be fully open, so that the supply of huid-under pressure to chamber 92 and the release of uid from chamber 90 in the motor 3 will be at a fast rate and as a result the `piston 85 Will move quickly From the'previous description of the operation of the control valve device I in connection with the iiuid pressure motor 2 it "will be understood that 'the left-hand lateral extension 21 of the supply cavity 2e is tapered as vievvedin Fig. 31to restrict the rate of iiow of iiuid under .pressure from chamber to chamber 3e and that the cavity extensions 532e are tapered to restrict the rate of release of fluid from the chamber 33 to the discharge passage 2i in the valve le. Since, as above mentioned, the cavities 25 and 32 are fully open when the handle 'i3 has been moved in a direction toward the left-'hand until brought to a stop by the pin i2 engaging the left-hand end of the slot d3, it Will be apparent that the flow re-' stricting portions of the cavities 25 and 32 will control the rate of iiow to and from the motor 3l and thus the speed at which the piston Se in said motor operates.

Just as soon as the operator releases his grip on the handle it, the spring 25, acting through the medium of plunger E25 and the arm 52 of disc 53, causes the upper body'casing 5 and thereby the shaft M and attached handle 'le to rotate in a direction toward the right-hand until it reaches its neutral position in which' it is brought to a stop by a shoulder idd carried by the plunger |25 coming into engagement with a sto-p le i provided on a guide member M2. As the shaft 5i is moved in a direction toward the right-hand as just described, the valve le is rotated, through the medium of pin 53, member 55 and extension 6e, in a counter-clockwise direction to its neutral position, in which position the cavities 25 and H32 are lapped. With these cavities lapped, the supply of fluid under pressure to and the release of iiuid from the motor 3 is cut off and as a result the piston Se therein is maintained in its outermost position, that is, in a position to the right o which it is shown in the drawing.

When it is desired to effect movement of the piston 35 in the motor 3 from its outermost position to the position in which it is shown in the ly against the opposing pressure of a spring M5 comprising a part of this mechanism. The shaft d? `as it moves in this direction acts through the medium of pin e3, extension es, and member @tto cause the valve l to rotate in a counterclock- Wise direction, it being understood that' such movement may be continued until the pin e2 engages the right-hand end of the slot d3.

As 'best'shovvn in 5, counterclockwise rotation of the valve i5 connects chambers 3!! and 33 in the vcasing and, as a result, iiuid under pressure iiovvs from chamber to the chamber 95 at the right-hand side ci the piston 85 in the iiuid pres'- sure motor 3 by Way of ports ist and' le! `in bushing i5, cavities in the valve i5, ports |35 in the bushing le, chamber 33 and pipe 34. At .the same time the Valve connects chamber 35 in the casing 5 with the vdischarge passage 2| in the valve so that fluid inV chamber 92 at the left-hand side 'of pis-ton 85 .in the motor 3 is released tothe discharge pipe IBB by way of pipe 39, chamber *36, ports '28 Vin the bushing l5, cavities 132' inthe valve i6, discharge passage 2l, chamber H and passage |03. Due to the increase in pressure inchamber 9'0 and the decrease in pressure in chamber 92 of the motor 3 the piston 86 is caused to move in a direction toward the left-hand from its outermost position to the position in which it is shown in the drawing. l

When the casing 5 and thereby the handle 115 is` brought to a stop by the pin 42 engaging the right-hand end of the slot 43, the cavities 25 `and 532 in the valve are fully open and as Yalready mentioned in connection With the operation of the piston 86 of the motor 3 in a direction ytoward the right-hand these cavities are tapered. The tapering portion ofthe cavities being so arranged that as the Vvalve isis moved from neutral posi; tion toward the position in which it is Stopped, the new area through said cavities in the valvezi's increased thus the degree the handle is ymoved out of neutral position in a direc-tion toward its stopped position controls the r-ate of iioW :of uld to 'the piston chamber and thereby the irateof speed at which the piston is moved.

It Will be understood that When the operator i releases his grip on the operating handle 'mithe- It should here be understood that if desired', the

handle l0 of the control valve device I 'may be manipulated to eiect both vertical land rotary movement of the valve l5 and thereby cause both fluid pressure motors 2 and 3 to operate at the same time and at the same speed or at thesame time and at diierent speeds.

For example, if it is desired to effect movement of the piston T9 and 86 of the motors 2 and 3,

respectively, from the position in which they 'are shown to their outermost .positions at the same time and at a fast rate, the handle 10 of 'the control valve device is rotated in a vertical coun-terclockwise direction from its neutral position until brought vto `a stop by the top of the valve engaging the- Wall lil of the casing 5 and at the Sametime rotated in a horizontal plane in a direction toward the left-hand until the pin 42 engages the end Of the 'slot d3. With the handle ofthe control valve device thus positioned it will be understood that the cavi-ties 25 and 29 in the valve I6, which con# trol the supply of fluid under pressure to and the release of fluid from the piston chambers 84 and 83, respectively, of the motor 2,' are fully open, and that the cavities 25 and |32 in the valve "IFB, which control the supply of fluid under pressure to and 'the'release of fluid from the piston .cham-Y bers 92 .and Se, respectively, of motor 3 are also fully open, thus fluid under pressure is supplied to and released from both motors at the same" time ata 'fast rate through the circuits hereinbefore traced in connection with individual operation of said'motors.

if it is desired to aetuate thev piston 'Is'o'f the 'l 11' engaging the end of the slot 43. The positioning of the valve between these latter positions being dependent upon the speed at which it is desired to effect movement of the piston 86.

It will be noted that in either of the above cases, when the operator releases his grip on the handle i the spring actuated plunger mechanisms 5I associated with arm 52 and the similar actuated plunger mechanisms 58 associated with the arm 59 will cooperate to eifect movement of the handle and thereby the valve I6 to its neutral position in which the supply and release cavities for each motor are lapped by the valve.

From the foregoing description it will be understood that when the handle 'l0 of the control valve device l is rotated in a vertical clockwise direction from its neutral position the piston 19 of the fluid pressure motor 2 is caused to move upwardly, and when it is rotated in a vertical counterclockwise direction from its neutral position said piston is caused to move downwardly. When the handle 'l0 is moved in a horizontal clockwise direction from its neutral position the piston 86 of the fluid pressure motor 3 is caused to move in a direction toward the left-hand and when the handle is moved in a horizontal counterclockwise direction from its neutral position said piston is caused to move in a direction to-ward the right-hand. It will be understood that the speed at which either of said pistons is moved in either direction is contr-olled by the rate of flow of uid under pressure to and the release of fluid from opposite sides of the piston to be operated. It will also be understood that the rate of flow of fluid under pressure to and the release of iluid from opposite sides of the piston to be operated is controlled by the degree the handle 'l0 is moved from its neutral position in any given direction.

It will also be apparent that the valve I6 may be manipulated so as -to cause the piston 1'9 in the motor 2 to be moved either upwardly or downwardly at any desired -speed without effecting movement of the piston 36 in motor 3 or that the pistons 19 and Bt may be actuated a-t the same :time and at the same speed or at the same time at different speeds to produce either longitudinal or horizontal or lany combina-tion of the two movements. It will be understood that lthe motors 2 and 3 may be arranged to operate a drive shaft through a worm gear or some similararrangement if desired and that either hydraulic fluid under pressure or air under pressure may be employed to operate said motors.

Having now described my invention, what I claim as new and desire to secure by Letters Patent is:

1. In a control valve device, in combination, a casing having iiuid pressure conducting passages therein, 1a valve mounted -in said casing for rotary and/or longitudinal movement from a neutral or normal position for eiecting the flow oi fluid through said passages, means including a shaft carried by said casing and voperatively connected to said valve, said shaft being manually operative in either a vertical clockwise or counterclockwise direction to move said valve Alongitudinally from its neutral position and operative ineither a horizontal clockwise or counterclockwise direction to rotate said valve from its neutral position, and spring meansl automatically operative upon the manual release of said means to return said valve Eto its neutral position.

2. In a control valve device, in combination, a casing having fluid conducting control passages provided therein, a valve mounted in said casing for rotary and longitudinal movement and having a fluid conducting cavity provided therein connected to one of said passages upon rotary movement and connected to another of said passages upon longitudinal movement of the valve, said cavity being provided with portions tapering in flow area to graduate the rate of flow of fluid through said cavity as the valve is moved and means carried by said casing and positively connected to said valve and being manually operative relative to the casing in one direction to positively rotate said valve and manually operative relative to the casing in a direction at an angle to said one direction to positively move said valve longitudinally.

3. In a control valve device,`in combination, a casing having an inlet passage and two con- .trol passages, a valve mounted in said casing ior rotary and/or longitudinal movement from a neutral position, a flow control cavity in said valve, said Icavity being eiective only upon rotary movement of the valve to connect said inlet passage to one of said ycontrol passages and only upon longitudinal movement of the valve yto connect said inlet passage :to the other of said control passages and provided with portions tapering in flow area tc graduate the rate of flow of fluid from said inlet passage to said control passages upon rotary and/or longitudinal movement of the valve, and lever means carried by said casing and positively connected .to said valve, said valve means being manually operative relative to the casing in one direction t-o positively rotate said valve from its neutral position and manually operative in a direction at an angle to said one direction to positively move said valve longitu-dinally from its neutral position.

4. A fluid pressure control valve device comprising a `casing having a nuid pressure inlet and a plurality of control passages formed therein, a valve rotatable only to establish communication through which fluid flows from said inlet passage to one of said control passages, land movable only longitudinally of the casing to establish a communication from said inlet passage to another of said control passages, and means positively connected to said valve and operative in one direction for rotating the valve and operative in a direction at an angle to said one direction for moving the valve longitudinally of the casing and operative in both directions for both rotating and moving the valve longitudinally.

5. A control valve device comprising a casing having a plurality of iiuid conducting control passages therein, a valve mounted-in said casing `for operation to control the flow of uid through said passages, said valve having a neutral rotary position and being rotatable `about its axis in either direction from said neutral rotary position for controlling the flow of uid through certain of said passages, and said valve having a neutral axial position and being snif-table axially in either direction from said neutral axial position for controlling the flow -of iiud to other of sai-d passages, and means for actu-ating said valve.

6. A control valve devi-ce comprising a casing having a plurality of fluid lconducting control passages therein, a valve mounted in Asaid casing for operation to control the iiow of iiuid through said passages, said valve having a neutral rotary posi-tion and being rotatable about its axis in either direction from said neutral rotary position for controlling the flow -of fluid through certain of said passages and said valve having a neutral axial position and being shiftable axially in either direction from said neutral axial position for controlling the flow of fluid through other of said passages, means for actuating said valve, and means automatically operative incident to the release of the actuating power applied to the rst mentioned means for returning said valve to the neutral position or positions from which it may have been previously moved.

7. A control valve device comprising a casing having at least two pairs of fluid conducting control passages therein, a valve mounted in said casing for rotary and/or axial movement for controlling the flow of iiuid to said pairs of passages and having a normal position, said valve being rotatable in one direction from said normal position for controlling in a certain manner the flow of fluid through one of said pairs of passages and rotatable in the opposite direction from said normal position for controlling in a different manner the flow of fluid through this pair of passages, and said valve being shiftable axially in the one direction from said normal position for controlling in a certain manner flow of fluid to the other of said pairs of passages andbeing shiftable axially in the opposite direction from said normal position for controlling in a different manner the flow of fluid through this pair of passages, and said valve being rotatable in either direction in either position to which it may have been shifted axially, for controlling the flow of fluid through the first mentioned pair of passages, and means operative t selectively rotate and axially shift said valve.

8. A control valve deviceY comprising a casing having fluid pressure conducting control passages therein, a valve mounted in said casing for operation to control the now of fluid through said control passages, said valve being rotatable for controlling the now of fluid through certain of said control passages and being shiftable axially for controlling the flow of fluid through other of said control passages, a member rotatably mounted on said casing, a shaft carried by said member for end for end rotary movement relative to said casing and for rotary movement about its axis relative to the member, means operative in response to the end for end rotation of said shaft for rotating said valve and operative in response to the rotation of the shaft about its axis for shifting said valve axially, and means for actuating said shaft.

9. A control valve device comprising a casing having fluid pressure conducting control passages therein, a valve mounted in said casing for operation to control the now of fluid through said control passages, said valve having a normal position and being rotatable from said normal position for controlling the flow of fluid through certain of said control passages and being shiftable from said normal position axially for controlling the now of fluid through other of said control passages, a member rotatably mounted on said casing, a shaft carried by said member for end for end rotary movement relative to said casing and for rotary movement about its axis relative to the member, means operative in response to the end for end rotation of said shaft for rotating said valve and operative in response to the rotation of the shaft about its axis for shifting said valve axially, means having a normal position and being operative from said normal position for actuating said shaft, and means energized incident to the operation of the shaft actuating means for operation upon the relief of the actuating power applied to the shaft actuating means to return the shaft actuating means and valve from any position to which they may have been moved to said normal position.

10. A control valve device comprising a casing having fluid pressure conducting passages therein, a valve mounted in said casing for rotary and/or axial movement for `controlling the flow of fluid through said passages, said valve when rotated without axial movement controlling the iiow of fluid through certain of said passages and said valve when moved axially without rotary movement controlling the flow of fluid through other of said passages, and said valve when rotated and moved axially controlling the flow of fluid through said certain and other passages, and means connected to said valve operative in a certain direction to rotate said valve and operative in another direction at an angle to said certain direction to impart axial movement to the valve and operative in both of said directions to impart both rotary and axial movements to the valve.

l1. A control valve device comprising a casing having at least two pairs of fluid pressure conducting passages therein, a valve mounted in said casing for rotary and/or axial movement for selectively controlling the ow of fluid through said pairs of passages, said valve when rotated without axial movement controlling the now of uid through one of said pairs of passages and said valve when moved axially Without rotary movement controlling the ow of fluid through the other of said pairs of passages and said valve when rotated and moved axially controlling the flowof fluid through both of said pairs of passages, and actuating means for said valve, said actuating means being operative in one direction for positively rotating the valve and operative in a direction at an angle to said one direction for positively moving said valve axially.

12. A control valve device comprising a casing having at least two pairs of fluid conducting passages therein, a valve mounted in said casing for selectively controlling either one or both of saidpairs, said valve having a neutral position from which it may be rotated to control the flow oi.' fluid through one of said pairs of fluid conducting passages and having a neutral position from which it may be shifted axially to control the flow of fluid through another of said pairs of fluid conducting passages, and means connected to said valve operative for selectively and positively moving said valve to either =one or both of its control positions.

HARRY C. MAY.

REFERENCES CITED.

The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 2,082,410 McCauley June 1, 1937 2,087,223 Thompson July 13, 1937 2,202,216 Madsen May 28, 1940 2,204,048 Phillips June 11, 1940 2,322,518 Huber June 22, 1943 2,337,166 Overbeke Dec. 21, 1943 FOREIGN PATENTS Number Country Date 371,603 Great Britain 1932 510,916 Great Britain 1939

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