US1575693A - Flush valve - Google Patents

Description

March 9 1926.

E. KROMER FLUSH VALVE Filed Oct. 13 1925 awn um bo'z jilzazzzez 29 .entire absence of springs, and bein Patented Mar. 9, 192 5 reassess EMANUEL KROMER, 0F SPOKANE, WASHINGTON.

FLUSH VALVE.

Application filed October 13, 1923. Serial No. 668,370.

To all whom 2'25 may concern:

Be it known that I, EMANUEL I(ROMER,'EL citizen of the United tates, residing at Spokane, in .the county. of Spokane and State of ashing-ton, have invented new and useful Improvements in Flush Valves, of which the following is a specification.

This invention relates toimprcvement's'in flush valves for toilets and-like purposes.

One of the objects ofthis invention is to provide a flush valve arranged and constructed to not only control the amount orvolume of flush water used, but which is usable in places having a wide range of water pressure, the valve being adjustable to all requirements, and functioning in the g substantially noiseles.

In accordance withmy invention, I pro vide in the interior of a valve casing, a valve structure for controlling the flow through said casing, the latter affording a continuously increasing or relatively increased area of outlet for the water as the latter passes through said casingthereby not only avoid}- ing resistance which would cause noise, but also affording maximum capacity of flow.-

,My invention includes a manually openable valve in the casing, and means, manually operable, exteriorly of the casing, for opening said valve, and in the preferred form of my invention, said valve opens against water pressure so as to be closed thereby, and I also preferably arrange the manual meansso that the same seeks to attain an initial position by gravity so that the valve will be closed by the combined action of water pressure and the gravity acting means.

It is a feature of my invention to provide what I will term. a primary adjustment, the function of which is to limit opening movement of the valve and thereby control the amount or volume of water used at each operation. 1

A further feature consists in a secondary adjustable means ,which acts inharmony with the primary means and whose function it is to regulate the rate of closing movement of the valve in accordance with the adjustment of the primary means. I

A further feature consists in providing a valve of this type wherein installation may first be made, and-wherein all adjustments are exteriorly accessibleso that anyone can adjust the valve after it is connected up.

movement of the movable member.

A further feature consists in providing a valve structure that will divide off the casing into inlet and discharge chambers, the valve structure being a hollow and preferably cylindrical type including an inverted cap closure member relatively movable with respect to a cylindrical valve member.

A-special feature of this phase of the invention resides in means for admitting water between the valve members to balance the member which is operated, and in utilizing this water in connection with the secondary adjusting means for timing closing i My invention has many other features of novelty which will be more fully described in connection with the accompanying. draw ing and which will be more particularly pointed out in and by the appended claims. 5

In the drawing Fig. 1, is a vertical sectional view of the preferred form, of my invention showing a full open flush adjustment. i

Fig. 2, is a similar view showing the valve in a closed adjustment.

Fig. 3, is a' sectional view on line 38' of Fig. 1. 1

Like characters of reference designate similar parts throughout the different figures of the drawing. 7

The deviceof my invention, as shown, includes a valve casing comprising an upper section 1, and a lower section.2. The sec tions are detachably united by union 3 having threaded engagement with section 1. A suitable packing 4, is disposed partly between a shoulder 5, on section 1, and a seat 6, on section 2. This packing, which may be of any suitable material, is of angle cross section, and a portion 7, also functions as a seat for a closure member, to be later de scribed, Section 1, is shown as having an interiorly'threaded intake end 8, and section 2 has a similarly threaded outlet end 9.

I will next describe my improved valve structure comprising relatively movable valve members and which controls the flow through said casing.

What I will term the valve member, designated as a whole at 10, is shown formed integral with section 2, and extending longitudinally therein, and as shown, vertically into section 1 and into the path of'flow. This valve member divides off the interior of the casing into inlet and dischargefchambers 11 and 12. It will alsobeinot'edthat member is axially disposed in chamber 11 with 1 uniform circumferential space thereabont and with the inlet passage for water at a point beyond or above said member. The head 13, of said valve member 10, which as shown, is of the stationary member, is sub stantially closed ezvcept to a passage 14 and a longitudinal bearing bore 15, to be later described. In cross section, the hollow member 10 is cylindrical and the periphery thereof is smooth and of uniform diameter. 1 prof rahl groove the head 13, as at 16, to form a seat for a packing ring 17. In the cylindrieal wall of member 10 is formed a pluralit of flush water openings 18, the mnnber of which may vary, but the preferable construction being such that the combined area of all of said openings will be equal to or slightly greater than the internal bore 19, of inlet end 8. Likewise, the area of chamber 11 is at leastequal to the bore 19 so that aside from friction, the water will confront no resistance in passing through chamber 11 into chamber 12, when openings 18 are fully uncovered as shown in Fig. 1. It will be noted that discharge chamber 12 has an increased cross cctional bore compared to chamber 11 which will afford the freest flow therethrough irrespec ive' of the presence therein of certain operating mechanism to be later described.

I will next refer to the movable portion of the valve structure which is shown in the form of an inverted cup closure designated as a whole at 20. The rim 21. thereof. is shaped to seat on packing: portion 7. when in the closed position. t will be seen that the closure 20 exteriorlv telescopes valve menu ber 10 and movable along; member 10 to either cover or uncover openings 18. 3etwcen il ll'lllel'S 1 and 20 there is a suhstan' tiall v closed space or area. 272. "il hen closure ill; is ad usted into or toward the flushing n shown in Fig. 1, it is moved against water .re in chamber 11, and bone this pressure is always active to move closure 20 into a closed position as the entire area 2; of the top of said --osure is al ays exposed to chising pressure. It will al he noted that when the closure is in a closed position, the space between the valve members is greatly reduced with res 'iect to the space be tween said members when the closure is in the open adjustment shown in Fig. 1. In the top wall of iid closure is formed prefcrablv two relief ports anda suitable par-king disc 35,havingregistering ports, is fixed in place as shown.

' I will n'eritdescribe the in'iproved operat- .ing means for opening and closing said valve structure.

An operating" rod 26; isreciproeable in hearing bore 15, in head 13, ashoulder 2T limiting; movement of said rod toward a closure opening position. Said rod 26" is also provided with a shoulder adapter for engagement with the top of closure 20 for the purpose of raising the same. The upper end of said rod reduced at 29 and this reduced end is slidable through the top of closure 20. A relief valve closure 30, is shown l ved to said reduced end 29 by a pin 31 and a nut The function of closure 30, is to close and open ports 2i. Closure 30, is spaced apart from shoulder 28 so as to leave play or sufiicient lost motion so that when rod 26 is first actuated the first thing it Will do is to lift closure and open ports 21 before shoulder 28 lifts closure 9.0. This insures relief by admitting water to space 22, thereby disposing closure 20 in an otpiilibrium of pressure and making it very asy to open the latter. It will be understood that throughout the time of raising closure 20, the ports 2-1. will be openand the increasing; space 22 will be filled with water.

I will next descrihe the improved gravity return manual. means employed to actuate closure 20.

A shaft 33 is journalled in suitable bearings 34: and carries a weighted handle 3:) wiiich is upuardl inclined when the valve is in a flushing adjustn'ient. The lower end of rod 26, is forked, as shown at 36, and is free from bearing engagement, the only bearing for red 26 being; in head 13. A cam 37, on shaft 33, is engageable with crotch 38, of fork 36, or pin 39, to operate rod 26. It will be seen that when lever is raised, the action of cam 37 will be to shift the lower free end of rod to the left of Fig. 1, because the friction drag will be in that direction when the cam is moved contra-clockwise. lVhen the opposite face of cam 37 engages pin 39, a like direction of drag will be imparted to red 26. I therefore provide cam 37 with an abutment 410, which limits shifting movement of the lower end of rod 26 tothe left, and whereby the rod is prevented from binding in bore while being longitudinally shifted. It will now be clear that just. as soon as manual lifting thrust is released from lever 35, after the latter has been raised to the position shown in Fig. l, the weight of lever 35, rod 20 and cam 37, will combine with water pre c we on top of closure 20. to move ihc latter to the closed position shown in Fig. :3. The first result of release of lever will be the seating of relief closure 30, thereby conlining the water in space 22 and 1'Oi'22!(ll11 closing; movement of closure 20.

I will next describe a primary and a secondary means for control of opening and closing; movement of closure-20.

Theprimary means includes an adjustable screw 41', extending through section 2, into the path of can1 3.7, andfacting as a stop therefor. ,Tln s bv'. limiting movement of cam 3? toward, a valve opening posit-ion it is therefore possible to make an adjustment whereby closure 20 may be opened to any desired extent. If the valve were operating on a very low pressure like twenty pounds, or even a slightly higher pressure, it would be advisable to completely uncover openings 18 by raising closure 20 to the full upper limit. However, suppose the valve were operating under a high pressure such as one hundred pounds, then the screw 41 would be adjusted so that the cam 37 would be arrested before the closure 20 fully uncovered openings 18. It will thus be seen that in this embodiment, this primary means coacts in the perforn'iance of its function with the manual operating means. 7

Next describing the secondary control, 42, designates a duct pipe which is connected at its upper end in communication with duct 14:, in head 13. The lower end opens to a boss 43, formed on the interior of section 2. In this boss is a bore 4%, which is controlled by a needle valve 45, adjustable from the exterior. Vith closure 20, in the position shown in Fig. 1, and just after release of upward stress on handle 85, the pressure in chamber 11 will act to return closure 20 to the position shown in Fig. 2. WVith the re lief closure 30, seated, the water in space 22, will have only one outlet, that being through duct 4-2. Thus, the closure 20 cannot be forced toward a closed position any faster than the water can escape from between the valve members. The speed at which the closure 20 can return to the position shown if Fig. 2, depends on the adjustment of needle valve 45. Under either a high or low pressure of water service, the user might want a fast, medium or slow closing movement of closure 20, in accordance with the amount of water he desired to use in each flushing operation.

It is believed that the invention and its operation will be fully understood from the foregoing description, and while I have shown one specific embodiment thereof. I do not wish to be limited thereto except for such limitations as the claims may import.

I claim l. A flush valve comprising a casing, a valve structure in said casing for controlling flow therethrough and comprising a movable member, a valve actuating rod having one end portion journalled in said structure and operatively connected with said movable member to actuate the latter, the remaining end portion of said rod being free, and manual means for impartlng operatmg endwise thrust to said rod and acting to prevent said rod from binding in its journal. 7

2. A flush valve comprising a casing, a valve structure in said casing for controlling flow therethrough, said structure including "a movable valve member, an operating rod longitudinallyjournalled in said structure and operatively connected with said member, and manually operable cam means for imparting endwise thrust to said rod and acting to hold the latter against binding in its journal.

3. A flush valve comprising a casing, a valve structure in said casing for controlling flow therethrough and including a movable valve member, a reciprocating rod j ournalled in said structure and operatively connected with said member, a cam for imparting endwise thrust to said rodand tending to shift said rod laterally of its longitudinal axis, and a concentric abutmenton said cam pre-' venting said rod from being shifted laterally under the action of said cam.

4. A flush valve comprising, a casing, a valve structure dividing off said easing into inlet and discharge chambers and comprising relatively telescoping head and cup members, a push rod slidable in close fitting relation through said head member and having lost motion connection with said cup member to shift the latter into a flushing position, a port closure on said rod, and said cup member having a port laterally of said rod and within coacting range of said closure to shut off admission of water through said port during closing movement of said cup member.

5. A flush valve comprising, a casing, a valve structure dividing-off said easing into inlet and discharge chambers and comprising relatively telescoping head and cup members, a vertically disposed push rod slidable through said head member and having lost motion connection with said cup member to shift the latter upwardly into a flushing position, a port closure on said rod subject to water pressure on both faces thereof, and said cup member having a port within coacting range of said closure, and gravity acting means for imparting closing movement to said closure to close said port and overcome water pressure resistance to such closing movementinstantly upon re lease of pushing thrust on said rod.

In testimony that I claim the foregoing as my own, I hereby aflix my signature.

EMANUEL KROMER.

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