US 1171610 A
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Description (OCR text may contain errors)
l E. E. HAUER,
APPLICATION FILED OCT-16,1911.
Patented Feb. 15, 1916.
2 SHEETS-SHEET 1.
@fl/C6@ THE COLUMBIA PLANOGRAPH co.. WASHINGTON, D. c.
E. E. HAUER.
APPLICATION FILED ocTL I6, 191|.
1,171,610. y Petented FeIe.15,1916.
2 SHEETS-SHEET 2.
F1?. E. F1123.
THE COLUMBIA PLANOGRAPI! 0., WASHINGTON. D. C.
invention, showing the valve in open position. Fig. 2 is a section at right-angles to UNITED sTATEs PATENT oEEicE.
ELMER E. HATIER, OF SPRINGFIELD, OI-IIO,
ASSIGNOR TO THE LAGONIOA MANUFAC- TUBING- COMPANY, OF SPRINGFIELD, OI-IIO,Y A CORPORATION OF OHIO.
Application led October 16,
To all whom 'it may concern:
Be it known that-I, ELMER E. HAUER, a citizen of the United States, residing at Springfield, in the county of Clark and State of Ohio, have invented certain new and use-l ful Improvements in Automatic Valves, of which the following is a specification, reference being had therein to the accompanying drawings.
VMy invention relates to automatic valves.
The. object of my invention is to provide an improved valve that will automatically close in the event of a break in the connections. A f i A further Objectis to provideirnproved means for balancing the valve to keep it from chattering under variations of pressure, saidmeans being arranged to drain the v waters of condensation.
With these andv other objects in view,my
invention consists ofv the constructions and combinations hereinafter described and set forth in the claims,
In the accompanying drawings, `which form a part of this specification, Figure 1 isa sectional viewl of a valve embodying my Fig. 1, showing the valve in'c'losedposition against the direct flow, and Fig; 3 is alike section with Fig. 1, showing the valve closed against the return flow.
Like numerals represent the same parts in the several views. v
In the drawings 1 represents a Icasing having an inlet 2 and outlet 3 and a partitions with an opening therethrough in which a detachable member 5 is screw-threaded, lhaving av'valve seat 5a Von its inlet side and a valve seat 5b on its outlet side. YArms 6 project inwardlyffrom said member and terminate in a hub 7 formed to actas a guide for a valve stem 8. A valve is provided comprising a disk 9 adapted to close on the seat 5L and a disk 9a adapted to'close on the seat 6b. The stemr8 is preferably of wrought material secured to the disk9a by casting said diskY about it; and the stem 8aL is preferably formed of the same material as 'the disk 9a 'and cast integral with it. `The disk 9 issecured against a shoulder on the stern 8 by a nut l0, as shown. l
Specification of Letters Patent.
1.911.YV serial No. 655,057.Y i
Patented Feb. 15, 1916. i,
cylindrical lining 12 having'an outwardly extending flange -13 secured between the cylinder 1? and cap 11;and I preferably provide said lining 12l with ajhead 14' at its lower end formingapartition between thel valve chamber and the pistonchaniber. This partition or head 14C has an opening 15to' admit and discharge the'iiuid pressure, and
an annular channel 16' gradually inclined to the opening 15 is provided so that the waters.
of condensation will drain by i gravity through said opening. YA-stuliingboX-having a gland 17 is secured-in placeby a split nut 18 provided with'a tightening bolt 19.
The cap 1? is provided with a yoke having a centrally disposed hub 20 in whichthere isfiXed a bronze nut 20a bored Vand screw- Vthreaded in which a screw-threadedpportion v of the stem 8b is operated by a hand-wheel,
21. -.The lower end 8F ofsaidjstemisreduced in diameter and extends into a recess in the `stem 8?. Y I
A piston 22 having packing-ring 21S-is sejcured against a shoulder 24': on the stem 8'r1 by a split nut 25 whichis'tightenedinplace by suo a' bolt 26. Said nut is :providedpwith a hub'V i 27 Vwhich extendswithin the lower end of a helical spring 28 carried by said piston. SaidV piston is provided witha portjor passage 29 so'thatithe fluid pressure maypass through andequalize the pressure on opposite sides'of the piston.' The iiuid pressure may be' introduced t'o opposite sides of the piston in'various ways, such as by piping, or
through a :conduit in the wall of the casing,
or by making the piston slightly -lessjin diameter than the cylinder; butI-preferably make it through 'the-piston and of restricted size for the sole purpose ofequalizingthe pressure .on opposite sides of the piston to prevent chatteringof vthe valve, Said piston is further provided on its upper side with an annular channel 30 whichis gradually inclined to the port or passage 29 so that the waters of condensation will drain by gravitythrough said porter-passage.
i When the hand-wheel is operated to draw r'the stem: 8 to its -highestposition there-is suiiicient space between the lower end of said stem and the lower end of the recess in the stem 8a' to permit the valve disk 9 to close upon the seat 5a.
When the Huid pressure is admitted to` the valve chamber the valve will be lifted until it reaches open position as shown in Fig. l; then it will encounter resistance of the spring 28 interposed between the piston 22 and cap lb, said spring being of suiiicient strength to hold it in open position under normal conditions of flow; but it a break occurs in the steam connection to the outlet side of the casing, the spring is not `ot sut'- ticient strength to resist the pressure and the valve disk 9 will close against its seat. Upon the other hand, if there is a break in the connection to the inlet slide'ot the casing the valve disk 9a will close to its seat.
lnpractice 1 have found. that when the valve is opening it has a tendency to chatter and 1 have overcome this by providing` a piston and a chamber therefor, with means to introduce the fluid pressure on opposite sides ot the piston as hereinbetore described. vThe valve can be` manually closed by operating the hand-wheel as will bereadily understood. A valve 31 arranged on the valve stein 8b is provided so that when said stem isiny its highest position, said valve will close upon a seat in the cap lb as shown to permit the re-packing of the stuffing boX 32 while the valve is under pressure.
Having thus described my invention. I claim Y l l. A casing forming a valve chamber and a piston chamber with a partition between said chambers, there being a constantly open restrictedv passage through said partition connecting said chambers, a valve in said valve chamber movable to open position by the flow of the fluid being transmitted and adapted to close when theuid pressure is released in either direction,` a 'piston in said piston chamber connected by a stem to said valve, a spring within the piston chamber operative when said valve comes to open position to hold it in open position against the normal flow of the duid, said piston chamber having an access vopening through which said spring is removable Iand said piston having a constantly open. passage therethrough to equalize the pressure on opposite sides of saidpiston.Y K
2.4 AA casing forming a valve chamber having inlet and outlet seats, a piston chainber having an access opening with a closure forsame and. a partition between said chambers having a constantly open Yrestricted passage therethrough, a valveV in said. valve chamber adapted to close on said seats and movable to open position by the tlow of the iuid being transmitted,v` a piston in said piston chamber having a restricted. opening therethrough and a connection to said valve, a spring in said piston chamber removable through said access opening operative whenV said valve reaches Open position to hold itin open position against the normal flowl of. the fluid and ,means to manually operate said valve.
3. A casing forming a valve chamber having inlet and outlet seats, a piston chamber having an access opening with a closure for same and a partition between said chambers having a constantly open restricted passage therethrough, a valve in said valve chamber-adapted to close onf said seats and movable to open position by the flow-of the fluid being transmitted, said valve having a stem with a. recess and Va piston, secured to said stem, said piston having a restricted constantly open passage therethrough, a manually operated stem projecting through an opening in said closure and extending into said recess, a valve seat in said opening and a valve on` said manually operated stem to close on said seat, a helical spring surrounding saidv manually operated steinL and carried by said `piston within said ypiston chamber, said spring being operative` when said i'irst rnamed valve reaches open position to hold it in open position against the normal flow ot the fluid.y
4.' A casingtorming a valve chamber and a piston chamber with a partition between` said chambers, a valve in said valvefchain-V ber movable to open position'by the ow of the fluid being transmitted, said valve com prisingtwo disks connected by a stem, one.`
of said disks being cast about said stem and the other removably attached thereto, a piston in said piston chamber connected to said valve, a spring` in said piston chamber `operaand secured thereby, a valve in said valvei chamber movable to open position Abythe flow of the iuidbeing transmitted., saidY valve having a stem with a recess extending through an opening in saidY partition, a helical; spring operative when said valve comes to open position to hold'it in open position against the normal iiowot the fluid,- a piston having a restricted passage therethrough with. means to secure the saine. :to
said stem, said meansY being adapted `to hold afned my signature in the presence of two said spring in place betweensaid pistou and Witnesses.
cap and a manually operated stem projecting through an opening in said cap and through said helical spring into said recess Witnesses:
of the valve stem, substantially as described. VIRGIL BAKER,
In testimony whereof I have hereunto Y GROVA ILGAN.
ELMER E. BAUER.
copies o! this patent may be obtained for tive cents each, by addressing the Commissioner of ZEatents.A Washington, D. C.