US950464A - Valve. - Google Patents

Description

E. T. SLOUGH, DBCD.

J. r. Dumm, ADMINISTRATOR.

VALVE.

APPLIOATION FILED AUG. 24, 190s.

Patented Feb.22, 1910.

snrnsrarnnfr oraison.

JOHN F. DEVINE, OF CHICAGO, ILLINOIS, ADMINISTRATOR OF EDWARD T. SLOUGH, DECEASED, ASSIGNOR TO ELIZABETH SLOUGH, OF DELAWARE, OHIO.

VALVE.

asa-ica.

Specification of Letters Patent.

atented Feb. 22, 1910.

Application filed August 24, 1908. Serial No. 449,947.

To all whom it 'may' concern.'

Be it known that l. Jonaw if. Devise, a citizen of the United States, residing at Chicago, county of Cook, and State of Illinois, administrator of the estate of Eowxno 'l'. Sanction, formerly of Chicago, illinois, deceased, respectfully make known and declare that said Enwann T. SLoUcII in his lifetime invented certain new and useful Improvements in Valves, of which the following is declared to be full, clear, and exact description.

rThe invention relates to valves for controlling the flow of fluid under pressure and more particularly to manually operated valves for controlling the tlow of liquid under pressure to and from a motor cylinder.

The invention seeks to provide a simple and etica-.tive form of valve which will be balanced and therefore easily operable.

AI Turther objects of the invention are to obviate the necessity of employing stuiting boxes and the like.

Vith these and other objects in View, the invention consists in the features of construction, combinations and arrangements of parts hereinafter set forth, illustrated in the accompanying drawings and more particui larly pointed out in the appended claims.

In the drawings, Figure l is a longitudinal section showing an embodiment of the present invention. Fig. 2 is a detail section on line 2 2 of Fig. l. Fig. 3 is an end View of parts shown in Fig. 1.

The embodiment of the invention selected for illustration is a form of handsoperated valve designed for controlling the tlow of air, steam or any suitable liquid under pres sure to and from a motor cylinder, such as that of an air, steam or hydraulic hammer, press or the like, but it will be understood that th improved valve may be adapted for numerous other uses.

The casing l of the valve in the form shown, is secured by bolts 2 to a boss or projection 3 in the side of the engine cylinder 4l. A rotary valve 5 is axially arranged within the bore of the valve casing, the main body of the valve being spaced apart as shown, from the walls of the bore or valve chamber in the casing. One of these parts is provided with end flanges and an intermediate flange which tit the other of said parts to form inlet and exhaust members (S and 7 Within the bore 0f the valve casing. ln the form shown, the valve 5 is provided with laterally projecting end flanges S and 9 and an intermediate flange l0 which snugly fit the walls of the valve casing to divide the bore thereof into the admission chamber 6 and the exhaust chamber 7, which are closed at their ends. lhilc this is the preferred construction, the flanges could be formed upon the valve casing and fitted to the body of the valve. The flanges 8 and l0 forming the admission chamber (i are preferably arranged closely adjacent each other and the valve casing is provided in its side wall with an inlet port l1 and a series of exhaust ports 12 opening respectively into the inlet and exhaust chambers t", and T. The inlet port ll extends through a nozzle lfl to which the supply pipe 15 may be connected. The exhaust. ports l2 communicate with a passage 10 extending through the abutment 3 on the cylinder'. This portion ot the abut;- ment terminates .in a [lange 17 to which an exhaust pipe may be coupled.

The bore of the valve casing is preferably provided with a steel bushing 1S and the bore and bushing are preferably slightly tapered so that the latter may be snugly litted within the valve casing. The smaller end of the bore of the valve casing is preferably arranged lowermost when the valve is disposed in vertical position, as shown in the drawings. The vflanges 8, 9 and l0 of the alve 5 are also preferably ground into the bushing 1S with a slight taper lit, the smallest portion of the taper being at: the lower end of the valve. The bushing 18 of course provided with openings corresponding to the inlet and exhaust ports 1]A and 12 in the main body of the Valve casing.

The valve 5 is provided with a central bore 19 which Vis closed at its ends. The bore or opening 'i9 extends on opposite sides of the [lange 10 between the inlet and exhaust chambers (l and T and communi- Cates with one of tliese chambers, while the valve is provided in the other of the cham bers with a ported wing or wings which control a port or ports in the side wall of the valve casing. Tn thel form shown, the alve is provided with a series of ports 20 in its side wall commul'licating with the bore i9 and opening into the admission chamber 6. ln the exhaust chamber, the valve shown in the drawings, is provided with two radial wings 2] which snugly titi the wall of the valve chamber. These wings are arranged between the flanges 9 and 10 but terminate short of the flanges so as to leave the spaces or passages 22 between the flanges 9 and 10 and the ends of the wings 21. The wings 21 are provided with a series of radial ports 23 which communicate with the central bore 19 of the valve and the valve casing is provided in the form shown, with two ports 24 whieh'are controlled by the wings 21 of the valve as the latter is rotated or oscillated. By shifting the valve the ports 24e may ne placed either' in communication with the central bore 19 of the valve or with the exhaust ports 12 of the valve casing. The central bore 19 is of course always in communication through the ports 20 with the inlet port 11 of the valve casing. In the form shown, the ports 24; of the valve easing communicate with the ports or passages 25 in the wall of the engine cylinder and which lead respectively to the opposite ends of the cylinder. In the normal, central position of the valve the ports 24 are both closed by the wings 21 of the valve. By oscillating the valve in opposite directions the opposite ends of the cylinder may be placed alternately in communication with the inlet and exhaust so that the flow of fluid under pressure to the engine cylinder may be readily controlled by hand to eidect the reciproeation of the piston in the cylinder and parts operated thereby.

It will be noted that the valve is perfect'ly balanced both on the admission and exhaust side. The inlet pressure is exerted upon the opposite closed ends of the central bore 19 and upon the opposed flanges 8 and 9 which form the closed ends of the inlet chamber 6, so that the inlet pressure is balanced in axial direction. Moreover, the arrangement of the ports 20 and 23 is such that the inlet pressure is entirely balanced in radial direction. The exhaust pressure is exerted upon the opposed flanges 9 and 10 and is therefore balanced in axial direction. By forming the spaces or passages 22 between the wings 21 and the flanges 9 and 10, the exhaust pressure is exerted on both sides of the valve and is balanced in radial direction. rEhe valve may therefore be very readily shifted by hand. The construction is also such as to obviate the necessity of employing heads upon the ends of the valve casing and also does away with packing rings, stufling boxes and the like. It should also be noted that the fluid under pressure could be admitted on either side of the valve. That is to say, in the form shown for example, instead of admitting the fluid under pressure through the port 11 and exhausting it through the ports 12 and the passage 16, it could be admitted to the passage 16 and ports 12 and exhausted through the central bore 19 and ports 20 and 11, and in either case the valve would be perfectly balanced. The present form of valve shown could be employed either as a one, two, three or four-way valve, or by increasing the number of wings it could control a large number of ports. The improved valve may of course, ne used with air, gas, steam or any suitable liquid under pressure and may be applied to any ordinary form of engine cylinder. lt would be particularly useful for controlling the flow of fluid between the high and low pressure cylinders of a compound engine.

lllhile the valve may be used in any position, either horizontal or vertical or at.- an incline, it is preferably employed in a vertical position, as shown. hen so arranged in vertical position, the valve is preferably provided with a center bearing at its lower end comprising' a stud 2G threaded through a cross bar or bridge piece 27 that is secured at its ends to the valve casing 1 by bolts 28. rJhe stud is adjustably locked in position by a nut 29 and engages a plug 30 in the end of the valve. A stem 31 threaded into the opposite end of the valve is provided with a suitable crank or lever for operating it. lVhen the valve is arranged in horizontal position, journal studs are threaded into the opposite ends thereof and mounted in suitable bearings.

In the form of hand-operated valve shown, a spring is provided for holding the valve in normal, central. position with the wings 21 closing the ports 24. This spring 32 is U-shaped as shown, and is coiled at its central portion about a stud 38 fixed to the end flange 9 of the valve at one side of the center thereof. The leg portions of the spring engage studs 34k fixed to the flange 9 to one side of the center thereof and opposite the stud 33 and the extreme curved ends of the leg portions of the spring engage a pair of studs fixed to the valve casing. It is obvious that when the valve is shifted in either direction from normal, central position, the spring 32 will be placed under 'tension and will tend to return the valve to normal posit-ion and close the ports 2li.

lt is obvious that numerous changes may be made in the details set forth wit-hout departure from the essentials of th-e inv-ention.

Having described the invention, what l claim as new and desire to secure by Letters Patent, is

1. A valve for cont-rolling the flow of :fluid under pressure, comprising a casing having a valve chamber' closed at its ends and a rotary valve axially arranged in said chamber, said valve having a central bore and radial wings fitting the wall of said chamber and terminating short of the ends thereof whereby the pressure on opposite sides of said Wings :is balanced, said nfings having ports communicating with the Cere tral bore of' the valve, and said easing having ports in its side wall controlled by said wings.

2. A. valve for controlling the flow of fluid under pressure, comprising a easing having a cylindrical valve chamber closed valve easing having a port; or ports conat its ends and a rotary Valve axially arranged in said chamber, said valve having a central bore and a series of' uniformly disposed, radial wings .fitting the cylindrical Wall of said Chamber and terminating short of' the ends thereof whereby the pressure on the opposite sides of' said wings is balaneed, said Wings having ports communicating With the central bore ot the valve and` said casing having ports in its side wall eontrolled by said wings and a port in its side Wall opening into the chamber about the valve.

3. A valve for controlling the flow of fluid under pressure, comprising a valve casing and a rotary valve axially arrangetfl in said easing, one of said parts having Yflanges fitting the other and :forming a chamber closed at its ends, said valve having a central bore and a number of uni formly disposed radial wings fitting the wall of said chamber' and terminating short' of said flanges, said `,vings being provided with ports communicating with the central bore of the valve, and said valve easing having ports in its side wall controlled by said Wing or Wings.

4l. A valve for controlling the flow oit fluid under pressure, comprising a valve casing having an open-ended, cylindrical bore and a rotary Vvalve axially arranged therein, having a central bore and flanges fitting the cylindrical bore of said casing and forming closing end lwalls therefor, said valve being provid-ed With a Wing or wings intermediate said flanges and fitting the wall of said easing, said wing or wings having ports communicating with the bore of said valve, and said casing having ports Controlled by said Wing or wings.

A valve for controlling the flow of fluid under pressure, comprising a lvalve easing having a eylindieal bore and a ro tary valve axially arranged in said easing and having a central bore and flanges fitting said easing, said valve having a number of uniformly disposed radial wings arranged between and terminating short of said flanges and fitting the ivall of said easing, said Wings having ports communicating with the here of the valve, and said l easing having a port or ports in its side Wall controlled by said valve and a port in its side wall opening into a space about the valve.

6. A valve for Controlling the flow of fluid under pressure, comprising a valve leasing, said valve having a central bore communicating with one of the chambersl of the valve easing and a radial wing in the other chamber fitting the wall o'l the valve easing, said wing having a port eomimmieating with the bore of the valve and said trolled by said wing.

T. A valve l'or controlling the flou' of' fluid under pressure, comprising a valve. easing having a cylindrical bore divided to :form inlet and exhaust chambers closed at their ends and portsI in the side wall ol" said casing opening into said chambers and a rotary valve axially arranged in the bore of said casing, said valve having a central bore closed at its ends and eoi'nmunieating with one of." said chambers, and said valve having a series ot' uniformly disposed, radial wings in the other of said chambers, said Wings fitting' the wall olE the chamber and terminating short of the ends thereof and having ports communicating with the bore ot the valve, and said casing having ports in its side wall controlled by said wings.

S. A valve for (ifontrolling the flow of fluid under pressure, comprising a easing having a Cylindrical bore and a rotary valve axially arranged in the bore of said casing, one of said parts having flanges fitting the other of said parts and forming inlet and exhaust chambers closed at their ends, said valve having a central bore communicating with one of said Chambers and havinga radially disposed wing or wings in the other of said chambers fitting the wall thereof, said wing or wings having ports communicating with the bore of said valve and said casing having ports in its side Wall controlled by said wing or Wings and having inlet and exhaust ports opening into the chambers about the valve.

S). )t valve for controlling the flow of fluid under pressure, eomprisii'lg a valve easing having a eylindrical bore, a rotary valve axially arranged in the bore of said aisixig, one of said parts having `flanges fitting the other and forming inlet and exhaust chambers closed at their ends, said valve casing having inlet and exhaust ports opening into said chanlbers and said valve having a central bore closed at its ends and communicating with one of said chambers and said valve having a series o't' uniformly disposed, radial wings in the other of said chambers fitting' the wall thereof and terminating short ol its ends, said wings having ports communicating with the bore of the valve and said easing having ports in its side wall controlled by said wings.

10. A valve for controlling the flow of fluid under pressure, comprising a casing having a cylindrical bore and a rotary l lt) valve axially arranged therein having a central bore closed at its ends and provided with end flanges and an intermediate flange fitting the bore of said valve casing and i bore of the, valve, said valve easing having'l ports in its side Wall, Certain of said ports being controlled by said Wings and certain of said ports opening into said inlet and exhaust chambers.

11. rl valve for controlling the flow of fluid under pressure, comprising a valve easing and a rotary valve axially arranged in said easing, one of said parts having end flanges and an intermediate llange fitting the other of said parts and forming inlet and exhaust chambers Closed at their ends, said valve easing having inlet and exhaust ports in its side Wall opening respectively into said chambers, said valve having a Central bore, ports in its side Wall leading from said bore into one of said Chambers and a series of radial wings in the other of said chambers fitting the Wall of said easing, said Wings being arranged between two of said flanges and terminating short of the flanges and having ports communicating with the central bore of' the valve, said valve easing having ports in its side Wall controlled by said Wings and a spring for holding said valve in central position.

l2. A valve for controlling the flow of fluid under pressure, comprising a valve easing having a cylindrical bore, a rotary valve axially arranged in the bore of said easing and provided with end flanges and an intermediate flange, said flanges having a taper lit with the bore of said valve easing and forming inlet and exhaust Chambers Closed at their ends and a center bearing for said valve, said valve easing having ports in its side Wall opening into said inlet and exhaust Chambers and said valve having a central bore closed at its ends and ports in its side Wall leading from the central bore to one of said chambers, said valve having also radial Wings in the other of said chainbers fitting the Walls thereof and terminating short of its ends, said Wings having ports communicating with the bore of the valve and being arranged to control certain of the ports in the side Wall of the valve Casing.

JOHN F. DEVINE, Administrator of he estate of Edward T.

Slough, deceased. Witnesses:

LAWRENCE A. COHEN, HARRIET HEISLER.

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