US1254869A - Flushing-valve. - Google Patents

Description

E. @.WMRGUS;

FLUSHING VALVE. APPLICATION FILED APR. I3. 1914. I

1,254,869. Patented Jan. 29,1918.

ECE..

EARL G. WATROUS, OF CHICAGO, ILLINOIS.

FLUSHING-VALVE.

Specification of Letters Patent.

Patented J an. 29, 191..

Application filed April 13, 1914. Serial No. 831,480.

To all whom it may concern:

Be it known that l, EARL G. WATRoUs, av citizen of the United States, residing at Chicago, in the county of Cook and State of illinois, have invented certain new and useful Improvements in Flushing-Valves, of which the following is a specification, reference being had to the accompanying drawings, forming part of this specilication.

My invention relates to that class of flushing valves known as slow-closing valves, adapted to be quickly opened by or upon the movement of a manually operated part, to produce a maximum flow of water for a, bricf period, and then to close slowly in order to produce a prolonged and gradually decreasing flow of water.

My present invention is, in certain respects, an improvement upon the valve here tofore patented to me by Letters Patent No. 1,066,350, dated July l, 1913, and consists in a simplification and cheap'ening of the construction of that valve, and in a modification which permits the 7alve to be used with equal eliiciency in any postion-horizontal, vertical or angular. 1n this latter respect my new valve is particularly adapted for use in horizontal position in vertical pipes, and its construction is further such as to especially adapt it for use in what is commercially called Concealed work, the pipes and valve being entirely hidden within walls or partitions, with the exception of the manually operated part of the valve, which is projected through .the same into position to be operated.

The novelty of my invention will be hereinafter set forth and particularly pointed out in my claims.

The main casing or body portion ofthe valve consists of a central approximatelyspherical portion A, having a supply pipe connection B at one side and a discharge pipe connection C at its opposite side, a nd having an internal diaphragm or partition D separating its interior into an inlet chamber' E and an outlet chamber F, communication between which chambers is controlled by the valves hereinafter described.

The top of the outlet chamber F is closed by a wall G formed integral with the valve body, while depending from the under side of the latter and formed integral with it is a cylinder or piston chamber H whose lower end is closed by a cap I screwed upon it Vand confining a packing ring 1 between itself and the bottom of the cylinder.

The diaphragm D within the valve body is provided with a central circular opening, with which, and with a seat formed around it upon the under side of the partition coperates the main valve J. This valve is composed, in the present instance, of a cylindrical portion a fitting within and adapted to coperate with the circular aperture in the partition D, and carried by and formed integral with a central tubular portion or stem b upon whose exteriorly-threaded lower end is screwed a casting o whose upper end has formed upon ita flange or disk d upon which rests a leather disk e which is clamped between the disk d and the cylinder a abovel it and cooperates with the valve seat upon the under side of the partition D.

Formed upon the lower end ofthe tubular casting c is a piston in the form of a disk K, which loosely fits and travels within the cylinder or piston-chamber H, normally occupying a position in the upper or inner end of the latter, as shown in the drawing, when the main valve is closed. Located within the cylinder H, beneath or at the outer side of v the piston K, is a second piston L, in the present instance of familiar composite construction, including a cup leather f, a split ring confined within the latter, in an annular recess provided in the metal disk of the piston,serving to press the leather outward against the cylinder wall. This piston L is carried by a valve stem M extending axially through the valve structure and provided upon its upper end with a pressurepiece or push-button N. Formed upon the upper side of the piston L, atv its center, is a supplemental valve O adapted to coperate with a leatherrseat o provided foi1 it in the under side of the piston K and casting o which carries said piston, said valve O controlling the passage around the valve stem M from the under side of the piston K to a pair of lateral ports z' by which the upper end of said passage communicates with the interior of the outlet chamberF.

rl`he valve stem M is provided with an annular shoulder or ring m` and surrounded.` by a stuffing box P at the point where it passes throughl the wall G of the valve body and above said wall is surrounded by a coiled spring Q which is confined between said wall and the push-'button N upon the upper .y

permitted.

end. et the valve stem. The parts above the wall G are inclosed with a cap or bonnet R within the outer end ot which tits the lower or inner end ot the push-button N upon the "follows:

Owing to the provision of the by-pass gg and the port It, as well as the lealiageway around the piston K, the interior oi the pistonv chamber beneath the piston L, and also the space between the pistons L and K, are normally lilled with water under the full pressure otl that within the pipe connection B and inlet chamber E, so that the pressures upon the upper and lower sides ot the piston L and disk K will be equalized and theV main valve will be held to its seat by the upward pressure against its under side. Upon slightly depressing the valve stem M, by means ot' the push button N, the relief valve G will be unseated, and the portion of the piston chamber beneath the piston L, and the space between the pistons L and K,

will be placed in communication, through the tubular passage around the valve stem.

and the ports z', 2', with the outlet chamber l? of the valve. rThis will serve to relieve the pressure upon the under sides ot' the pistons L and K, whereupon the preponderating pressure upon the upper side of the piston K will force the latter downward and unseat the main valve. It the latter should stick in its seat it can be manually unseated by suliicient depression of the valve stem M whose ring m will contact with the top of the valve casting. rl`he pressure fon the push button being continued, so as to hold the valve 0 unseated, the piston K and main valve will move on downward until the central aperture or passageway through the diaphragm i) is t'ully opened and a maximum flow of water through the valve During such downward movement of the parts the water in the cylinder H escapes freely past the piston L and otl'ers little resistance to its downward movement.

Upon relieving the push-button N of pressure the spring Q will litt it and the valve stem M, relatively to the main valve and the piston K, and reseat the reliei'l valve O, thereby closing the escape passage from the lower end of the piston chamber and the space between the pistons L and K to the outlet side of the valve, whereupon the pressure of the water supply will be gradually restored in the lower portion of the piston chamber, and in the space between the pistons L and K, through the by-pass gg', port it, and leakageway around the piston K, and such pressure, exerted against the under sides of the pistons L and K, supplemented by the pull of the spring Q, and the rush of water upward through the valve seat, will tend to restore the parts t-o normal position and closethe main valve. rlhe piston L can move upward, however, only so fast as the water is admitted to the space beneath it through the regulated by-pass 'r/g, supplemented by the port z through the piston, and the closing movement of the main valve is regulated by means of such by-pass.

lt' the main valve, under the pressure eX- erted against the underside of the piston K, tends to close y'too rapidly, and is moved upward inpadvance ofthe piston L, the relief valve O will become unseated, thereby temporarily relieving the 1Jressure beneath the piston K and arresting the movement of the latter until the piston L catches up with it and reseats the valve 0. The closing movement of the main valve is thus regulated and controlled and it is caused to move slowly and quietly to its seat.

While it is desirable that the by-pass 'gg' and the port z inthe piston L be both employed, in combination or cooperation with each other, as well as to enable either to act alone if the other should become clogged up or obstructed, the operation of the valve is not dependent upon the presence otboth, and -either may be omitted without defeating 1t.

in the accompanying drawing have" illustrated my new valve in upright position, and in the description of its various parts have referred to them in that relation, as it the valve were secured in a horizontal pipe, with its operating push-button at the top, and while the valve will operate in that. position as well as any other, it is, as heretofore stated, particularly adapted for use in horizontal position, with its pipe connections arranged in vertical line, and with its operating push-button projecting' laterally from the body of the valve'and fromth'e vertical line of the pipe connections. The valve is not only so designed and constructed as to operate in such position, which is not the case with many prior valves, but as heretofore stated it is also well-designed for use in concealed work, since the bonnet or cap R of the valve casting, which houses the outer end of the valve stem and its surroundinga spring and the stutling boX, may be readily extended through the partition behind which the valve and piping are located, and the vpush-button be properlv located for use'. If the partition thrbugh Having thus fully described my invention,

l claim:

l. In a iushing valve, the combination of a valve body having diametrically-opposed pipe connections and a cylinder projecting from it at right angles to said pipe connections, a piston slidingly engaging said cylinder and permitting restricted leakage ot' water, a main valve carried by said piston, a second piston also slidingly engaging said cylinder, a spring-pressed supplemental valve carl ried by the latter piston andcoperating with the first-mentioned piston to open and close relatively free communication between the inlet and outlet sides ofthe valve through said piston and main valve, and means for manually moving the second piston to unseat the supplemental valve and open communication .between the opposite sides of the main valve through said main Vvalve and the firstmentioned piston.

2. In a {iushing valve, the combination of a valve body having diametrically-opposed pipe connections and a cylinder projecting from the valve body at right angles to said pipe connections, said cylinder being provided with a regulated by-pass connecting one end of it with the inlet side of the valve, a piston slidingly engaging said cylinder and permitting restricted leakage of water, a

' main valve carried by said piston, a second piston also slidingly engaging said cylinder, a spring-pressed supplemental valve carried by the second piston and coperating with the first-mentioned piston to open and close relatively Jfree co-mmunication between the opposite sides of the main valve'through said main valve and piston, and means for manually moving the second piston to unseat the supplemental valve and open communication between the opposite sides of the main valve through the latter and the first-mentioned piston.

3. In a flushing valve, the combination of a valve body having diametrically-opposed pipe connections and a cylinder projecting from the valve body at right angles to said pipe connections, a piston slidingly engaging said cylinder and permitting restricted leakage of water, a main valve carried by said piston, a second piston also slidingly engaging said cylinder provided with a small port providing restricted communication between the spaces at its opposite sides, a spring-pressed supplemental valve carried by the second piston and coperating with the first-mentioned piston to open and close relatively 'tree communication between the opposite sides of the main valve through saidimain valve and piston, and means or manually moving the second piston to unseat the supplemental valve and open communication between the opposite-sides of the mam valve through the latter and the irst-menl tioned piston.

Y 4. In a flushing valve, the combinationvof a valve body having diametrically-opposed pipe connections and a cylinder projecting from the valve body at right angles to said pipe connections, said cylinder being provided with a regulated by-pass connecting one end of it with the inlet side of the valve, a piston slidingly engaging vsaid cylinder and permitting restricted leakage of water, a main valve carriedby said piston, a second piston also slidingly engaging said cylinder having a small port providing restricted communication between the spaces at its opposite sides,a spring-pressed supplemental valve carried bythe second piston and coperating with the first-mentioned piston to open and close relatively free communication between the opposite sides of the main valve through said main valve` and piston, and means for manually moving the second piston to unseat the supplemental valve.

5. In a flushing valve, the combination of` a valve body having diametrically-opposed pipe connections and a cylinder projecting from the valve body at right angles to said pipe connections, a piston in said cylinder permitting restricted leakage of water, a main valve carried by said piston, said piston and valve being formedwith a passage providing relatively free communication between tlze piston chamber and the outlet side of the valve, a second piston in said cylinder, a supplemental valve carried by the second piston and coperating with the firstmentioned piston to control the passage through the same and the main valve, a valve-stem extending axially through the main valve and the first-mentioned piston and secured at one end to the second piston, a pressure-piece secured to the opposite end of said valve stem, a spring surrounding the latter end of the valve stem and confined by said pressure-piece, and an inclosing cap or bonnet upon the valve body for said spring, valve stem and pressure-piece.

6. In a flushing valve, the combination of the valve body A having the pipe connections B-C and the internal diaphragm D separating its interior into the inlet chamber E and outlet chamber F, and having the cylinder H' projecting from the valve'body at right angles to the pipe connections B-C, said cylinder having the by-pass gg controlled by the regulating screw S, the piston the valve, the piston L in the cylinder H at the. outer side of the piston K, the supplemental valve O carried bythe piston L and coperating with the pistonl K to control the passage through the same and the main valve, the. valve stem M extending axially through the main valve and piston K and secured to the piston L, the pressure-piece N secured upon the opposite end of said valve stem, the spring Q surrounding said stein and continet by said pressure-piece, and the cap or bonnet R screwed upon the valve body and inclosing said spring, valve stem and pressure-piece.

7. ln a flushing valve, the combination ofthe valve body A having the diametrically-opposed pipe connections B-C and the cylinder H projecting trom the valve body at right angles to said pipe connections, 'said cylinder having a regulated bypass connecting its outer end With the inlet side of the valve, the piston l in the cylinder H permitting restricted leakage of Water, the main valve carried by said piston and composed of the tubular stemportion b, cylindrical portion a and dislr portions (l and c, the piston l and main valve having an axial passage through them providing relatively free communication between the outlet sideI of the valve and the piston chamber, the second piston L located in the cylinder H at the outer side of the piston K and having the smallport h, the supplemental valve O carried by the piston L and cooperating with a seat upon the piston K to control .thepassage through the llatter and the main valve, the valve-stein M extending axially through the main valve and piston K and the Wall G of the valve body, and secured at one end to the piston L, the stu'lling box P surrounding the valve-stem M at its passage through the ivall G, the pressurepiece N upon the outer end of the valve stem, the coiled spring Q, surrounding the valvestem between said pressure-piece and the Wall G, and the cap R inclosing said spring, stutling box, valve-stem and pres-` sure piece.

8. ln a flushing valve, the combination ot a valve body having pipe connections and an internal diaphragm provided with a main valve seat and separating the interior ot the body intoan inlet chamber and an outlet chamber and also having a cylinder arranged in the inlet chamber in axial alinement with the valve seat, the outer end of said cylinder having restricted communication with the inlet side of the main valve, a piston in the inner end of said cylinder permitting restricted leakage of Water, a main valve carried by said piston and vcooperating with said main valve seat, said piston being formed with a supplemental valve seat on its outer side and said piston .andmainvalvebeing formed'with an axial passage providing relatively free` communication between such seat and the outlet side of the valve, a second piston at the outer side of said first-mentioned piston, a. supplemental valve carried by said piston cooperating With said supplemental .valve seat, and a spring-pressed operating stem vsecured tol said supplemental valve and extending axially through'said Vrst-mentioned piston and main valve and yieldingly tending to hold both said valvesseated.

9. ln a flushing valve, the combinationof a valvebody: having pipe connections. and an internal diaphragm provided. .With a main .valve seat and separating theinterior of the body into an inlet chamber and` anl outlet chamber and also havinga cylinder arranged in the inlet chamber inaxial alinement with the valve seat, the `outer lend oi said cylinder havingrestricted communicationwith the inlet side of the main valve, a piston in the inner end ot' said cylinder permitting restricted leakage ol Water, aA main valve carried by said piston and cooperating vvith said main valve seat, said piston being formed with a supplemental valve seat on itsv outer side and said piston and main valve vbeing formed with an axial passage providingrelatively free communication between such seat and the outlet side ot the valve, a second piston at the outer side ol said lirst-mentioned piston, and also being formed with a leak port permitting restricted passage o t Water from one side thereof to the other, a supplemental valve carried by said piston cooperating with said supplemental valve seat, and a springpressed operating stem secured to said supplemental valve andV extending axially through said first-mentioned piston and main valve and yieldingly tending to hold both said valves seated.

l0. ln a flushing valve, the combination of a valve body having pipe connections and an internal diaphragm provided with a main valve seat and separating the interior of the body into an inlet chamber and an outlet chamber and also having a cylinder arranged in the inlet chamber in axial alinement with the valve seat, the outer end of said cylinder having restricted communication with the inlet side of the main valve, a piston in the inner endl of said cylinder permitting restricted leakage of Water, a main valve carried by said pistonand cooperating With said main valve seat, said piston being formed with a supplemental valveI seat on its outer side and said piston and. main valve being formed With an axial passage providing relatively free communication betweensuch seat and the outlet' side ofthe valve, a second piston at the outer side of said first-mentioned piston, a supplemental valve carried by said piston cooperatingiwith saidV supplemental valve seat,

lll() and a spring-pressed operating stem secured to said supplemental valve and extending axially through said iirst-mentioned piston and main valve and yieldingly tending to hold both said valves seated, said operating stem having a limited lost-motion engagement with said main valve.

l1. In a ushing valve, the combination of a cylinder having an open end constantlyl exposed to pressure adjacent the inner side of the main valve, av piston in said cylinder permitting restricted leakage of Water, a main valve carried by said piston, said piston and valve being formed with a valve seat and passagev providing communication between the piston chamber and the outlet y vside of the valve, a second piston in said cylinder, saidsecond piston also permitting restricted flow of Water past it, a supple-z mental valve carried by said second piston and coperating With said valve seat, and a spring-pressed operating stem passing through the passage in the main valve and first-mentioned piston and connected with said supplemental valve, said stem being provided with an abutment permitting a short relative movement with respect to the main valve. Y EARL G. WATROUS.

Witnesses: LOUIS B. EmvrN, ROBERT DOBBERMAN.

Gopies of this patent may be obtained for five cents each, by addressing the Commissioner of Bateau.

Washington, D. C.

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