US1577370A - Flushing valve - Google Patents

Description

March 16,1926. 1,577,370 F. A. SCHOSSOW FLUSHING VALVE Filed May 25, 1925 4 Sheets-Sheet 1 Bu .5 w 5 I i I ga -r.- "1

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March 16,1926. 1,577,370

F. A. SCHOSSOW FLUSHING VALVE I llllll May 1925 4 Sheets-Sheet 2 BY i/ziw A TTORNE Y.

4 Sheets-Sheet '5 FLUSHING VALVE Filed May 25, 1925 F. A. SCHOSSOW March 16 1926.

gd I MZTORM BY fi /Zim ATTORNEY.

March 16 1926.

F. A. scHossow FLUSHING VALVE 4 Sheets-Sheet 4 .-l TTORNEX Patented Mar. 16,1926.

PATENT OFFICE.

FREDERICK A. SCHQSSOW, 015 DETROIT, MICHIGAN.

FLUSEING- VALVE.

Application filed May 25, 1925. Serial No. 32,635.

To all whom it may concern:

Be it known that l, FREDERICK A. SoHossow, citizen of .the United States, residing at Detroit, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Flushing Valves, and declare the following to be a full, clear,'and exact description of the same, suchas will enable othersskilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification.

My invention relates to a valve for flushing closet bowls or for other like purposes and is designed more particularly for use in combination with a pressure tank so designed that the water deliveredto the tankfrom a water supply system under pressure compresses the air within the tank-the com- ;pressed air afterwards subsequently serving as a medium for expelling thefwater from the tank with sufficient force to maintain a siphon in the closet bowl for a predetermined period of time.

Flushing valves have been used in connection with pressure tanksin the manner indicated but so far as known these valves are designed so that they begin to close immediately. [following their manual operation, the valve closing entirely under full pressure .in a limited length of time,-thereby necessitating the employment of a tank adapted to receive much more water than is actually used at each flush'in order that pressure may not. be greatly diminished during the flushing period, otherwise the valve must the adjusted for a specific pressure which if not maintained willresult in the valve remaining open indefinitely.

The primary. Object, therefore, of the present invention s 'to construct a valve adapted to rema n open as. long as the volume of water is suflicient to maintain the siphon inth'ecloset bowl and the volume of water-delivered to the bowl is by this means determined by the size of the pressure tank which is therefore preferably just large enough to maintain sufficieht-water to proptained by varying the sizeof the pressure .erly flush the bowl. Such an arrangement results 'in a more economical use of water and; a longer or shorter flush may be obtank instead of by regulating .the flushing valve. However another available method ofvarying the length of a flush is by regulating the velocity of the water. supply enterin the tank during the flushin period, there%yregulating the speed at w ich the pressure withinthe tank diminishes to ac- ,cord with the delivery of water to the bowl.

Another feature ofthe invention resides in the fact that the valve will not close until the rate of flow appreciably diminishes, there being no limit to the volume of water that the valve will deliver,- therefore it may be used if desired to empty a tank containing one hundred or more gallons ofwater as effectively as one containing four or five gallons, commonly employed to flush the usual types of closet bowls.

Another object of the invention is to pro-' vide for a comparatively slow opening of out of the water-passages within the closet bowl.

vide against the valve closing until the volume and ressure have been reduced to a "ery small thereby avoiding the hissing noise which commonly occursiwhen'a valve is closing under full volume and pressure. Another object of the invention is to control, the final closure of the valve so as to admit a copious amount of water at a slow rate of fiow--the water remaining in the bowl as a seal against sewer gases or other odors.

Another object of the inventionis to provide means insuring the slow-opening and slow closing of the valve which is entirely independent of the means provided to maintain the valve in its open position.

Another feature of the invention is that the means controlling the slow opening and slow closing of the valve is thoroughly cleansed at each'manipulation of the manually operated means for actuating the valve. With the foregoing and other objects in .view which will, appear as the description raction of the initial pressure,

Another object of the invention is to proclosed without departing from the spirit of the same.

In the drawings accompanying this specification:

Figure 1 is a diagrammatic view partly in perspective and partly in section showing a pressure tank and suitable piping leading from a water system-not ind1cated-to a pressure tank that the delivery of water thereto may compress the air in the tank that the water'contained in its closed chamber may be subsequently delivered through a pipe leading to a closet bowlthe delivery of water through said last'named pipe being controlled by a manually operated valve forming the subject matter of this invention.

Figure 2 is a vertical cross-sectional view through the flushing valve showing it in its normal position whereby the water contained in the pressure tank is held against release.

Figure 3 is a similar sectional view through the valve showing the handle by which it is manually operated in an inclined position to actuate a bell-crank lever, whereby a pin resting upon one of its arms is raised -to force a releasing valve from its seat.

Figure 4: is a similar sectional view with certaln parts broken away and in elevation in which in additon to the releasing valve,

the main valve is also raisedwhile the manually operated lever is shown released from manual control and returned 'to its normal, horizontal position through the action of a springindicated in the preceding figures-the releasing valve howeveris held off its seat together with the main valve by the pressure of water flowing from the pressure tank through the valve to the closet bowl, as indicated by the arrows.

Figure 5 is a like cross-sectional view showing the releasing valve seated-the main valve being open and the pressure of water entering the chambered'body from the pressure tank now tends to force the main valve to its seat, as shown in Figure 2'the closing movement being relatively slow. Y

I Figure 6 is a plan view of the valve with parts broken away. 1

Figure 7 is a horizontal cross-sectionalview with parts broken away, taken on or about line 77 of Figure 3.

Figure 8 is a fragmentary horizontal cross-sectional view taken on or about line 8-8 of Figure 4.

Figure 9 is a horizontal cross-sectional view with parts broken away taken on or about line 9'-9 of Figure 4. I

10 isa perspective view of the wing guide; f;

LReferringnow. to. the letters of reference placed upon the drawings in which like reference characters designate the same parts in the several views:

The valve body A, is connected by suitable piping X, to a pressure tank Z, into which water from a water supply system not shown-flows through the piping Y, compressing the a r in the tank in accordance with the pressure of the water "delivered to the latter.

A cap cover A, is bolted to an annular flange a projecting outwardly from the upper end of the valve bodybetween which is secured a diaphram B, preferably formed of leather, which serves also as a washer between the cap-cover and the body of the valve: This diaphram together with all the working parts connected with the main valve hereinafter more particularly described may be removed as a unit from the valve body for inspection ,or repairs.

The main valve D, includes a wingguide E, having a limited vertical movement in a horizontal partition (Z between the water inlet and the discharge outlet of the valve body. -Projecting upwardly from the partition is. an annular rim surrounding the bore forming the seat A of the main valve.

Mounted centrally upon a shoulder in an annular screw-threaded extension of the wingguide is an annular washer F which closes against the seat of the main valve said washer being secured by a flanged nut G, screwed upon the annular upwardly exguide.

The washer F is further secured by a collar H having a flange overlapping the outer edge of the washer. The collar H is screwed upon the flanged nut G and also to an annular inverted cup-shaped member I having an annular neck projecting through the diaphram B where the latter is' engaged by a beveled-edge washer C screwed upon the upwardly projecting annular neck I of the cup-shaped element.

C denotes'a flanged nut screwed upon the neck I,, overlapping and bearing against the tapering washer C to hold the diaphragm firmly against a shoulder formed by the wall of the inverted cup I, cham- -ferred at the upper outer edge.

guide prevents the pin from dropping out of the latter. The pin K operates as a contacting means to connect a manually operated bell-crank lever L with a releasing valve M, which is adapted to seat against an annular washer E fitted in the lower end of the upwardly projecting annular extension E, of the wing guide and which is held -in place by an elongated collar E, having a knurled head to facilitate its ready removal or adjustment.

The releasing valve M is tapered at its lower end and seats against the wall of the washer E, to normally close the opening Y through the latter.

Extending upwardly from the tapered end of the releasing valve M is a tubular portion M having a plurality of holes m adjacent its lower end-the tubular portion M at its'upper end is provided with aflat disc M of relatively large diameter which is adapted to seat at its outer marginal edge against a shoulder 1 formed-in the bowl of the inverted cup-shaped element-there being a space I above the disc to allow egress of water'through the releasing valvewhen in its open or raised position with the disc.

of the valve against the'shoulderI of the inverted cup-shaped element.

Sleeved within the tubular portion of the releasing valve is a coiled spring N bearing at its lower end against the wall of the ta- ,pering valve and at its upper end against the overlapping flange of the nut C, screwed upon the tubu ar neck of the inverted cupshaped' element.

Between the cap J and the counterbored annular neck of the nut C is placed a disc P, through which is drilled a relatively small holethe size of which determines the speed at which the valve may open and close-water being expelled through the hole during the openingphase and is again admitted during the closing phase of movement of the main valve.

While the main valve is closing water passes through the aperture in the disc comparatively slowly, while on the contrary when the valve is opening the water pressure against the lower surface of thediaphragin forces the water through the aperture in the disc vwith comparative rapidity'thus any foreign matter that may have become lodged around the disc is washeddown and out.

The aperture. in the disc is further cleansed at each flush by means of a wire stem Qpreferably of gold 'which passes through the disc aperture and projects from ,the upper end of. a rod Q, slidable within a tube R, sleeved within the coiled spring N, the upper end of the tube being flanged to overlap the counterboredwall of; the annular; stem of the nut Cthe lower end-of the tube'being flanged inwardly to engage a flattened portion Q? of the rod-to prevent.

the latter dropping through the tube when removing the parts for inspection or repairs. The rod Q isloosely fitted in'the lower end of the tube and projects through the latter and rests upon the releasing valve that it may be raised when the valve is lifted by the manual operation of the bell-crank lever.

It will now be apparent that each time the releasing valve is manually operated the wire Q is moved upwardly through the aperature in the 'regulating disc, thereby removing any foreign particles which may have found temporary lodgment at this point.

The disc is preferably made of non-cor rodible metal or other material, reducingto the minimum thepossibility of the aperture becoming cloggedthe pinproviding a facile means for cleaning the aperture in the disc without taking the valve apart.

Attention is again directed to the beveled edge washer C screwed upon the neck I of the mverted cupshaped, element, so; constructed that when pressure is exerted against the lower face of the diaphragm B, the diaphragm is forced against its bev-' eled portion, thereby transferring the presis operated.

The end of the handle W projects through acontracted opening in the end of the collar S, screwed intoa lateral extension of the valve body and is fitted with an areshaped end W? adapted to bear against a spring actuated plunger T, supported centrally within the collar by a plug T ,havinga. flange projecting between the end of the collar S and a shoulder in the wall of the valve body. i

V denotes a rubber gasket or washer over lapping the end of the plug T, 'its marginal edge extending between the plug andvalve body and is secured to the plunger by a milled screw V which in turn bears against one of the arms of the bell-crank lever, whereby the lattermay be actuated upon operating the handle.

Having indicated the erence letters the construction and operation of the device will be readily understood:

,The valve having been connected with the pressure tank Z -which maybe either at the same altitude as the valve or higher or lower as desired, the pressuretank' being in turn connected with the source of water supplywater is admitted to the tank fromsaid source of supply.-

The lncom'ing' water compresses the air within the tank until'it equalsthe pressure v crank lever L, whereby the releasing valve several parts by refunckar which the water is delivered to the tan The valve during this period is normally closed except that it may be operatedseveral times to expel air from the connecting pipes and chamber in the valvebody above the diaphragm. The operation thereafter is as follows:

Manipulation of the manually operated handle ll' actuates the bell-crank lever L which in turn pushes the loose fitting pin K upwardly in the bore of the wing-guide E until it impinges upon the lower end of the releasing valve M. forcing the latter from its seat, the disc M being forced upwardly bythevalve against the shoulder 1 of the cup-shaped element Ia unitary part of the main valve.

Attention is now called to the relatively small opening 2' between the collar H and the. inverted cup-shaped element I, of the main valve-through which and the ports 2, the full pressure of water may pass to the lower face of the releasing valve D. It also circulates through the space it, between the outer diameterof the collar Hand the valve body, so that the water pressure may pass to the lower face of the diaphragm. This water pressure holds the release valve in its .raised positionwhereupon the water above the diaphragm of the main valve passes down and outwardly through the aperture in the regulating .discthereupon the main valve slowly opens.

The full flush however cannot be attained until the collar at the top of the wing guide has been raised above the opening through the main valve seat. During this interval a relatively small amount of water passes through the grooves e of the collar of the wing-guide which serves the purpose of gradually expelling the air that is normally in the water passage of the closet bowl, thereby eliminating the gurgling or gushing noises that ensue when ample water to create a full flush is admitted instantaneously to the bowl. I

As the valve continues to rise the volume of water passing through the valve increases until suflicient to create and maintain siphonage of the bowl-the valve remaining in full open position as long as the volume is ample to maintain siphonage. The length of time during which the bowl will continue to siphon is dependent upon the size of the pressure tank employed, plus the volume of supply that is added to that in the pressure or storage tank while the valve is open.

.When the pressure tank is empty, or nearly so, the volume necessarily is greatly decreased and the pressure of water entering a the main valve becomes insufficient to maintain the releasing valve in its open position. The releasing valve, therefore, is forced to its. seat by the coiled spring within the main valve. The force of gravity plus the small remaining water pressure combine at this point to seat the main valve and the water flowing through the small opening provided between the collar and the inverted cupshaped element of the main valve passes upward and through the aperture in the disc of the releasing valve.

This closing movement however is comparatively slow and until the main valve is entirely closed water flows past the collar to the top of the wing guide. The volume of water that passes however is much too small to maintain a siphon and therefore it remains in the bowl forming a copious seal against sewer gases.

Owing to the fact that the water pressure is now small, the final closure of the main valve is practically noiseless in contrast to the whistling or hissing noises inevitable with valves of this type which close under, or nearly, full primary pressure.

Valves of this type designed to close under full water pressure usually Waste considerable water before finally closing as the pressure is considerably diminished after the valve is fully open rendering them inapplicable for use with a pressure tank unless the tank is large enough so that a single flush only slightly diminishes the pressure in the tank.

. The present valve is constructed primarily for use with a comparatively small pressure tank which together with a certain quan tity of supply water entering the tank while emptying provides the exact quantity of water required for each flush, and due to its slow opening and closing while the water pressure is practically nil a quietness of operation is attained which is not secured by otherwalves of this type.

Having thus described my invention what I claim is:

\ 1. In a device of the character described; a valve body having inlet and discharge ports; a normally closed main valve adapted to govern the flow of water through the valve body; means for actuating the valve, and means including a releasing valve controlled by water passing through said valve bodyat a predetermined volume and pressure for supporting said main valve in open position until thevolume and pressure of water in the valve body is insufficient to maintain the .valve longer in open positlon.

2. In a device of the character described; a valve body having ports for the admission and discharge of fluids; a normally closed main valve for controlling the flow of the fluid; means for actuating the main valve; and means including a releasing valve adapted to automatically maintain the main valve in open position during any period of time in which the rate of flow through the main valve is suflicient to maintain a prepressure and volumewithin the maintain a predetermined pressure and.

volume within the valve; and means adapted to automatically close the main valve when the rate of flow through the valve body is insuflicient to maintain said valve'inopen position. 1

4. In a device of the character described; a valve body having ports for the admission and discharge of liquids; a normally closed main valve adapted to control the flow of liquid through the body a normally closed releasing valve adapted when actuated to cause the operation of the main valve due to the passage and pressure of the fluid controlled thereby; and means for maintaining the releasing valve automatically in an open position during any period of time the rate of flow through the valve is suflicient to maintain a predetermined pressure and volume within the valve body.

5. In a device of the character described; a valve body having ports for the admission and delivery of liquids; a normally closed main valve adapted to control the flow of liquid through the body; a normally closed releasing valve adapted when actuated to cause the operation of the main valve due to the passage and pressure of the fluid controlled thereby; means for automatically maintaining the releasing valve in an open position during any period of time the rate of flow through the valve is sufficient to maintain a predetermined pressure and volume within the valve body; and means adapted to automatically close the main valve whenever the rate of flow through the valve body is insufiicient to maintainsaid valves in open position.

6. In a device of the character described;

a valve body having ports for the admission ever the rate of flow through the valve body is insuflicient to maintain said valves in open position; and means for actuating the releasing valve. i t

7. In a device of the character described; a valve body having ports for the admission and delivery of liquids; a normally closed main valve adapted to control the flowof liquid through the body; a normallyclo'sed releasing valve adapted when actuated to cause the operation of the main valve due to the passage and pressure of the fluid controlled thereby; means for automatically maintaining the releasing valve in an open position during any period'of time the rate of flow through the valve is suiticient to maintain a predetermined'pressure and volume within the valve body; means adapted to automatically close the main valve whenever the rate of flow through the valve body is insuliicient to maintain said valve in open position; and means for manually actuating thereleasin valve.

8. In a device of-the character described; a valve body having ports for theadmission and deliveryof liquids; a normally closed main valve adapted to control the flow of liquid through the vbody; a normally closed releasing valve adapted when actuated to cause the operation of the main valve due to the passage and pressure of the fluid controlled thereby; .means for automatically maintaining the releasing valve in anopen position during any period of time the rate of How through the valve is suflicient to maintain a predetermined pressure and volumewithin the valve body; means adapted to automatically close the main'valve whenever the rate of flow through the valve body is insufficient to maintain said valvesin open position; means for manually actuating the releasing valve; and means for automatically limiting the rate of movement of the main valve from closed to open position.

9.In a device of the character described; a valve body having inlet and outlet ports;

a normall closed main valve for controlling the flow t rough saidbody; means for automatically maintaining the releasing valve in open position during any period of time in which the rate of flow through the valve is sufficient to maintain a predetermined pressure and volume within the valve; and means for limiting the'rate of, movement of the main valve from open to closed position, operative only whenthe rate of flow through the "mainyalve portsiis of insuflicient volume to automatically maintain the main valve in open position.

10. In a device of the character described; is:

a valve body having ports for the admission and discharge of water; a normally closed main valve for controllingthe flow of water; means for actuating the main valve; automatically operated means for maintaining the releasing valve in an open position during the period of time whichthe. rate of flow through the valve is sufiicient to main tain a predetermined pressure and volume within-the valve; means adapted to automatically close the main valve when the rate of flow through the valve body is insuflicient to maintain said valve in open position; and unitary means for limiting the rate of movement of the main valve from the closed I position to the open position and from the open toward the closed position.

11. In a device of the character described a valve body having ports for the admission and discharge of water; a normally closed main valve for controlling the flow of water; means for actuating the main valve; automatically operated means fon maintainin the releasing valve in open position during the period of time in which the rate of flow through the valve is suflicient to maintain a predetermined pressure and volume within the valve; means adapted to automatically close the main valve when the rate of flow through the valve body is insufiicient to maintain said valve in open position; means for gradually augmentmg the initial flow of water until a maximum flow is reached; and means for diminishing the maximum flow to a lesser flow of a pre-' determined quantity and volume prior to the main valve returning to its closed posi-. 'tion.

12. In a device of the character described; a valve body having Water inlet and outlet ports; a normally closed main valve; a normally closed releasing valve, whereby the main valve is actuated; means .for limiting the rate of flow into and from a water chamber in said valve body, whereby the opening and closing of the main valve may be con trolled; and means for maintaining the releasing valve in an open position during .any period of time that the rate of flow of time that the rate of flow through the main valve ports exceeds a predetermined volume; and means ,for actuatmg the releasing valve.

14. In a device of the character described; I

a valve body having inlet and outlet ports; a main valve; a releasing valve; means for maintaining the releasing valve in an open position controlled by a predetermined minimum water pressure; means for automatically closing the releasing valve when the water pressure is less than the predetermined amount.

15. In a device of the character described; a valve body having inlet and outlet ports; a main valve; a releasing valve; means for maintaining the-releasing valve in an open position controlled by a predetermined minimum water pressure, means for automatically closing the releasing valve when the water pressure is less than the predetermined amount; and means for actuating the releasing valve. 1

16. In a device of the character described; a valve body having inlet and outlet ports; a main valve; a releasing valve; a diaphragm attached to the main valve dividing the valve body into two chambers; an annular element extending from the main v'alve through the diaphragm connecting the upper and lower chambers of the main valve for the passage of Water; a perforated disc carried by the annular element; means including a wire movable through the perforated disc adapted to be actuated by the releasing valve; and means for raising the releasing valve.

17. Ina device of the character described; a valve body having inlet and outlet ports; a main valve slidable in the valve body; a diaphragm attached to the main valve dividing the valve body into upper and lower chambers; a releasing valve having an enlarged disc at its upper end adapted upon raising the releasing valve to close a passage normally open through the diaphragm; said releasing valve being maintaincd in its raised position by the water pressure against the underside of said disc until the water pressure falls below a predetermined rate.

18. In a device of the character described; a valve body having inlet and outlet ports; a main valve having a wing guide slidable in a central bore through a partition having an annular rim forming a seat for the valve: a diaphragm attached to the main valve dividing the valvebody into upper and lower chambers; said main valve having an annular neck extending through the diaphragm into the upperchamber; a nut screwed on said neck having a central bore; a cap screwedon the neck of the nut having central and transverse connecting bores; a perforateddisc lodged between the nut and cap; a releasing valve having an enlarged disc at its upper end adapted when raised to close a passage normally open through the-diaphragm; means fitted with a wire movable through the perforated ,disc actuated synchronously with the operation of the releasing valve, and means for raising the releasing valve.

19. In a device of the character described; a valve body having inlet and outlet rts; a main valve having a wing guide slldable Ill in the valve body; a diaphragm attached to the lower side of the disc until said pressure is diminished below a predetermined volume. 20. In a device of the character described; a valve body having inlet and discharge ports; a main valve controllin the passage of water through the valve ody; a diaphragm secured to the main valve dividing said valve body into upper and lower chambers; a manually operated releasing valve having a disc within the body of thelmain valve, adapted when actuated to release water above the diaphragm, whereby the main valve ma be raised by water pressure below the diap ragm; and a spring adapted to seat the releasing valve when water pressure acting against the underside of its disc falls below a predetermined pressure.

21. In a device of the character described; a valve body having inlet and discharge ports; a main valve having a wing guide; a diaphragm secured to the main valve dividing said valve body into upper and lower chambers; a manually operated releasing valve having a disc, located within the body of the main valve; a movable plunger loosely sleeved within the wing guide adapted to act upon the releasing valve; a bell crank lever; a manually operated handle adapted when tilted to rock the bell crank lever and thereby actuate the plunger to raise the releasing valve; and a spring for returning thehandle when released from manual control to its normal position.

i 22. In a device of the character described; a valve body; a main valve controlling the passage of water through the valve body I comprising a wing-guide, slidable through a central bore in the valve body and surrounded by an upstanding flange forming the valve seat; an annular disc mounted on an upstanding collar integral with the wing guide; a nut screwed on the collar adapted to bear against the disc; an inverted-cupshaped element having a plurality of ports through its side wall and a central annular neck; aflanged collar screwed to the cupshaped element and overlapping the annular disc having ports connecting with the ports of 'the cup-shaped element; a diaphragm adapted to divide the valve body into upper and lower chambers with a central opening to receive the neck of the cup-shaped element; a washer screwed to the neck of the cup-shaped element having a beveled edge to receive the thrust of the diaphragm; a flanged nut having an annular neck screwed to the neck of the cup-shaped element; a tube extending through the neck of the cupshaped element supported by the flanged nut; a perforated disc mounted on the end of the tube; a cap nut having central and transverse bores screwed to the neck of the flanged nut to retain the disc in posit-ion; a releasing valve and a relatively large disc joined together by a tubular neck, adapted to close a passage normally open into the upper chamber, whereby the main valve may be operated; a'rod located within the tube having an upstanding pin slidable through the perforated disc actuated through the operation of the releasing valve; a spring supported in the tubular neck of the releasing valve adapted to return the latter to its seat; a loose fitting plunger rod lodged in a bore extending through the wing-giude of the main valve, adapted when actuated to raise the'releasin'g valve; and means for manually actuating said plunger'rod.

In testimony whereof, I sign this specification.-

FREDERICK A. scnossow.

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