US2839760A - Water distributing apparatus, with automatic stop, for flushing purposes, particularly for water closets, or for other uses - Google Patents

Description

Jun 24, 1958 J. VANDERHOVEN 2,839,760

'rus, WITH AUTOMATIC STOP, FOR nusnmc; PURPOSES, PARTICULARLY FOR WATER CLOSETS, OR FOR OTHER USES gl Feb. 2'7 1956 WATER DISTRIBUTING APPA 2 Sheets-Sheet 1 .RN .m

N m l Z W J Z -A: 6 m a m f ATTORNEYS June 24, 1958 J. VANDERHOVEN 2,839,760

WATER DISTRIBUTING APPARATUS, WITH AUTOMATIC STOP, FOR FLUSHING PURPOSES, PARTICULARLY FOR WATER CLOSETS, OR FOR OTHER USES Fil ed Feb. 27, 1956 2 Sheets-Sheet 2 INVEN TOR 1 JEAN VANDERHOVEN BY Ell/m in? 6 Loni/m U11 ATTORNEYS United WATER DISTRIBUTING APPARATUS, WITH AUTOMATIC STOP, FOR FLUSHTNG PUR- POSES, PARTICULARLY FOR WVATER CLOS- ETS, OR FOR OTHER USES This invention relates to a flush tank arrangement, particularly for water closets and the like and in particular relates to an improved flush tank airangement which is relatively simple and reliable and quiet in construction and operation.

The flush tank arrangement of the present invention comprises, basically, a water tank under atmospheric pressure and there is a water inlet into the tank and a flush valve outlet from the tank and a lever pivoted within the tank on a removable support for operating the valves.

For a better understanding of the explanation of the invention and its operation, the annexed drawings show,

atent O by way of example, apparatus in accordance with the g invention.

For this purpose, Figure 1 shows a front elevation of apparatus designed to supply a water closet.

Figure 2 shows a profile View of the apparatus shown in Figure 1.

Figure 3 shows a plan view of the apparatus shown in Figure 1.

Figure 4 shows a section taken on the line IVIV of Figure 3.

Figure 5 shows, on a larger scale, a section taken on the line V-V of Figure 1.

Figure 5a shows a plan view of the cross-piece 1.

Figure 6 shows an elevational view of the traverse upon which the control device is mounted.

Figure 7 shows a plan view of the part shown in Figure 6.

With reference to the above figures, 1 shows the cylindrical wall of the tank, and 1 and 1 the front and rear walls respectively. The wall 1 in its top portion is provided with an opening or window closed by a cover 41 engaging at one end, at 41, under the edge of the wall 1 of the tank and resting at the other end on a part 1 provided with a threaded pin 1 engaging in a hole 41 of the cover, which is then fixed by a nut 1 see Figures 2, 3, 8. On the bottom of the cylindrical wall 1 of the tank there is fixed a tube 2, see Figure 5, provided on the outside, at 3, with a thread designed to receive the coupling 3 of the feed pipe for water under pressure, and on the inside with a ring 4, the inside thread 5 of which engages a nozzle 6 having a central conduit 7 opening laterally into the inside of the tube, into the annular space 2 formed by 2 and another concentric tube 8 fixed, for example, at 8 on the peak of the nozzle 6. This tube 8 is completely closed at its top part by a plug 10 and is at its bottom part provided with the apertures 9 opening into the annular chamber 2 This tube 8 is designed to form at 8' an air cushion designed to prevent the hammering which might arise.

The top end of the tube 2, disposed inside the tank which will later be designated 1, is closed by a plug 11 in the form of a ring, inside which, at 12, there is screwed air bell 18, secured by a ring such as 19, capping the top end of the tube 2. At 16 there is provided on the stem 16 a gudgeon pin limiting the descent of the bell 18. The stem 16 passes through and is guided in the opening 23 of a traverse 21 which will be discussed below.

On the bottom of the cylindrical part of the tank 1 there is fixed at 40* a large pipe 40 serving to evacuate the water from the tank. The top part of the pipe 40 which penetrates into the tank is fitted with a flange 39 for positioning the seating 38, which consists of a rubber ring; a bell shaped rubber valve 34, the periphery of whose bottom face 35 is plane and of annular shape, giving with 38 an effective sealing. This valve 34 is fixed, between parts 36 and 37, on its operating member which is in the form of a pipe 32 which is open at both ends 32' and 32*. Inside the tube 32 there is disposed a jointed rod or chain 31 pivoted at 30 to one of the ends of the operating lever 27, and whose bottom end is, for example, a cross-piece 31 fixed to 31 and constituting 32 slide on the inside surface of pipe 40 to center and guide device 3132. This tube 32 also serves as a channel for discharging an overflow from the tank.

' On the top edge of the walls 1 and 1, see Figures 3, 4, 5, there are the notches 24, serving as a support for the bottom ends of a traverse 21 shaped as a U, of which 22 represents the wings which at the ends assume the rounded shape of the vicinity of the periphery of the edges of the walls 1 and 1 The Wings 22 have indentations 22 to allow movement of the tube .32 towards the top, while the bottom of the traverse 21 has on the one hand apertures 23, for the passage and guidance of the stem 16, and 23 for the passage of the end of the bar 28, and on the other hand, the end parts 25 in the shape of legs folded back at about in the downward direction, so that the traverse 21 can fit over the outside face of the walls 1 and 1*, see Figures 1 to 5. Between the wings 22 of the traverse 21 there is disposed the pivot shaft 26 of a lever 27 whose end 30 controls the raising of the tube 32 and whose other end has the aforesaid bar 28 extended outwards between the wings 22 of the traverse, to end in the control handle 29. The section of the bar 28 is such that it occupies, apart from the play required for operation, the inside gap between the wings 22, which prevents the introduction of any foreign body that could derange the operation of the mechanism. Thus the notch 24 of 1 will always be obturated by the presence of the bar 28. The other notch 24 of the wall 1, which is at the back, may remain open, or if necessary closed by a tongue 21 welded on the bottom of the traverse 21 at the corresponding end.

Operation proceeds as follows:

The water being contained in the tank at the level XY, the disposition of the mechanism is as shown in' Figure 5. If now the handle 29 is pushed in the direction of the arrow a, the lever 27 swings round shaft 26 and the rod or chain 31 raises the bell valve 34, which enables the water to run out through the pipe 40. At the same time, during the operation, point 27 of the lever reaches the end 16 of the stem 16 on the valve 15, which is pushed down, thus enabling the water under pressure which is contained in the annular chamber 2 to run out through 13 in the direction of the small arrows, overflowing above the nut 13, and thus discharging into the tank. The air which under the bell 18 was under slight pressure owing to the rise of the water during a previous emptying operation, is then not under pressure, and the bell occupies, like the whole of the mechanism, the position shown by broken lines. The tank being empty, the bell valve 34 falls back on its seating 38, and the lever 27 rises, but the seating 14 of the valve 15 remains uncovered, so that the water can continue to flow through 7, 2 13 and fill the tank. The water arrives at the level X Y and starts to compress the air under the bell 18, and the latter starts to raise the stem -16 and hence the valve 15, which operates to shut off the incoming water, which then, under its pressure, completes the closing At this moment the water has reached the level X-Y' in the tank and a new discharge operation can be'etfected as described above.

It should be noted that the section of the water discharge passage at '7 is smaller than the section of the discharge passage at 13*, in order to prevent the water outlet at 13* from receiving a pressure which might cause a too rapid'rise of the bell 18 and therefore of the valve 15, thus preventing the Water from reaching the service level X-Y in the tank.

'Naturally, other details or variants of realization of the apparatus may be considered without departing from the framework and scope of the present patent, which relates to water distributing apparatus, with automatic stop, for flushing purposes, particularly for water closets, or for other uses, characterised as shown below.

I claim:

1. In a flush tank arrangement for water closets wherein the discharge valve shuts ofi automatically when the tank is empty, the combination of a discharge pipe, an operating tube, a bell shaped discharge valve secured to said operating tube and seating upon said discharge pipe to close the same, a lift member extending through the said operating tube, a supporting element on the bottom end of said lift member and supporting the lower edge of said operating tube whereby upward movement of said lift -member will be transmitted to said operating tube and valve through said supporting element, a pivotally mounted control lever with one end connected to said lift member, an inlet tube for the admission of water into the flush tank extending through said tank from top to bottom thereof and having a downwardly facing seat on the upper end thereof, an inlet valve at the upper end of said inlet tube and having an upwardly facing seat engageable with said downwardly facing seat, a surge chamber within said inlet tube in constant communication with the lower end thereof to absorb shocks originating from water hammer and pressure surges and to restrain and regulate the pressure of the water during the admission of water into the tank when the tank is filling, a bell connected to said inlet valve outside of said inlet tube below the top of the tank to be acted upon by the rising water in the tank to close the inlet valve when the water reaches a predetermined level in the tank, and an extension on said inlet valve positioned in the path of movement of the control lever to be depressed thereby so as to open the inlet valve when the control lever is operated to open the discharge valve.

2. A flush tank arrangement as claimed in claim 1 in which said inlet valve is adjacent the upper end of the tank and there is a tube extending from the inlet valve to the bottom of the tank for connection with a water conduit, and said inlet tube comprising a second tube therein stopping short of said inlet valve and being closed on top, said second tube having openings in its lower end to provide constant communication with the water in said first tube and to constitute said surge chamber against water hammer and pressure surges.

3. A. flush tank arrangement according to claim 1 in which said supporting element on the bottom end of said-lift member-is positioned within the discharge pipe directly below the tank, and comprises a plurality of substantially radially extending blade elements having downwardly and outwardly inclined edges of which the four outer points are engageable with the inside wall of the said discharge pipe whereby the operating tube of the said discharge valve member tends to be centered on the lift member thereby.

4. A flush tank arrangement according to claim 3 in which the discharge pipe comprises a tube and the said radially extending blade elements attached to the bottom of the lift member seat relatively closely within the said tube whereby the discharge valve member is guided to its seating position.

References (liter! in the file of this patent UNITED STATES PATENTS 362,897 McHugh May 10, 1887 580,208 Cahill Apr. 6, 1897 872,935 Harman Dec. 2, 1907 1,029,360 German June 11, 1912

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