US2049890A

US2049890A - Seat actuated compression tank water closet

Info

Publication number: US2049890A
Application number: US6493A
Authority: US
Inventors: John A Brown
Original assignee: Individual
Current assignee: Individual
Priority date: 1935-02-14
Filing date: 1935-02-14
Publication date: 1936-08-04
Anticipated expiration: 1953-08-04

Description

Aug. 4, 1936. J. A. BROWN 2,049,390

SEAT ACTUATED COMPRESSION TANK WATER CLOSET Filed Feb. 14, 1955 s Sheets-Sheet 1 v MJ'QMW Aug. 4, 1936. J. A BROWN SEAT ACTUATED COMPRESSION TANK WATER CLOSET Filed Feb. 14, 1935 3 Sheets-Sheet 2 Aug. 4, 1936. J. A..BROWN 2,049,899

I SEAT ACTUATED COMPRESSION TANK WATER CLOSET 'Filed Feb. 14, 1935 v 3 Sheets-Sheet 5 7521630504 dch/aQ/fl 5/ "020724 l aten tecl Aug. 4, 1936 SEAT ACTUATED COMPRESSION TANK WATER CLOSET My present invention relates to improvements in seat actuated compression tank water closets and has for its objects (1) the rendering of such apparatus more simple and effective so that it will operate more dependably and with greater efliciency and more uniformly; (2) and I have also had in mind the provision of a structure which may be mounted with bowls having either a top or back or rear flush inlet port; (3) and I have also provided additional security against the possible creation of a vacuum in the supply or service line, which, if created, might, under abnormal ciroumstances, occasion a contamination of the service water supply. 7

I have accomplished the above outlined objects by means of. the structure illustrated in the accompanying drawings, in which Fig. 1 is a diagrammatic elevation of a top mounting.

Fig. 2 is a diagrammatic elevation of a rear mounting.

Fig. 3 shows a top mounting associated with the bowl in vertical section, the valve being in flushing position.

Fig. 4 is a similar vertical central section of the valve, the same being in the position occasioned by the depressing of the seat and in which the flush tank is being filled.

Fig. 5 is a top plan of the fitting for assembling the valve and tank with a bowl having a top opening flush entrance port.

Fig. 6 is a side elevation, partially in section, of a rear assembly.

Fig. 7 is a central vertical section through the valve taken at right angles to the section shown in Fig. 3.

Fig. 8 is a fragmental rear elevation of a rear assembly.

Fig. 9 is a fragmental sectional detail of a float operated tank vacuum relief valve. 7

Fig. 10 is a fragmental sectional detail of. a pneumatically operated tank vacuum relief valve.

Fig. 11 is a fragmental sectional detail of a portion of the construction shown in Fig. 10 but at right angles thereto.

Similar reference characters refer to similar parts throughout the respective views.

The features which are similar in articles of this class are a valve constructed to be operated when the closet seat is occupied so as to permit water to enter a sealed tank from the service water supply and when the weight is removed from the seat the valve closes the service water supply and opens a channel from the tank to the flush port of the bowl; The tank is generally positioned with respect to the bowl so that the water descends therefrom to the bowl by gravity and by force of the air compressed in the tank by the pressure of the service water supply. This is a remarkably efficient arrangement during normal 5 operative conditions but abnormal conditions may develop when the service water supply is entirely out off or the pressure therein so reduced as to be less than the atmospheric pressure when there is at least a possibility of water being drawn from 10 the bowl into the service water supply.

The valve herein illustrated and described may be assembled with either a top or rear flush entrance bo-wl with different attaching means, but without any change in the valve. The valve it- 15v self, as most clearly shown in Figs. 3, 4 and 7, consists in a vertical cylindrical casing l5 having an intermediate enlargement I6, which enlargement has an interiorly extending annular ridge ll. Extending rearwardly from the valve casing I5 20 opposite and upon both sides of the locations of the ridge I1 is a development providing an easily curved hollow spud l8 above the ridge ii for connection with the tank I!) and below the ridge the development provides the hollow spud 20 for con- 25 necting the valve and the parts with which the valve is assembled with the bowl.

Mounted within the casing is a casting consisting of a central stem 2! having

valve disks

22 and 23 at its opposite ends. Extending down- 30 wardly from the end of the valve member bearing the disk 23 is a valve stem 24 which passes through the lower end of the casing I5 and through the packing gland nut 25 associated therewith. The stem 24 co-operates with a projection 25 con- 35 stituting a portion of the hinge of the seat 26 so that when the seat is occupied and depressed the valve stem and the

disks

22 and 23 will be forced into the elevated position shown in Fig. 4, and when the seat is not occupied the spring, hereafter to be described, and the pressure of the service water supply will force the disk 23 downwardly into the position shown in Figs. 3 and '7.

The top of the valve casing I5 is closed by the cap 21 and mounted between the cap 2? and the 45 top of the disk 22 is the coil spring 28. Provided laterally of the casing ill with respect to the spuds l8 and 2B is a hollow development 29, as most clearly shown in Fig. 7, with which the service water supply pipe 30 is connected. The 50 location of the hollow development 29 is such that when the disk 22 is in lowermost position, as. shown in Figs. 3. and 7, the entrance from the development 29 into the casing is above the disk,

but when the disk 22 is in its uppermost position, 55

as shown in Fig. 4, the top of the disk 22 will be above the top of the opening from the development 29 and a portion of the opening from the development 29 will be below the lower face of the disk 22. The relations of the

disks

22 and 23 are such that when the disk 22 is in its uppermost position the disk 23 will fit within the ridge I1 and close such opening, and when the disk 22 is in its lowermost position the disk 23 will fall below the ridge I! and permit water to flow from the spud l8 into the spud 20.

Heretofore, so far as I am aware, in making such valve the makers have relied upon the back pressure built up when the tank is filled, operating upon the top of the disk 22, to force the valve down when the weight upon the seat has been removed. In normal operation there is ample hydrostatic pressure to secure this operation, but conditions may easily occur to render the operation abnormal. For instance, if pressure is relieved from the seat before the tank has been filled and before back pressure has been built up, the action of the valve upon the building up of back pressure is quick and liable to be noisy as the seat is violently thrown up and the valve clatters as it assumes lowermost position. Also, if the service water pressure falls at night or at other times when the apparatus is being used, the valve will not completely fall until suflicient pressure comes on again and there may be created a leak through the valve and bowl. To overcome these possibilities I have inserted the spring 28, as heretofore described, which is of sufficient strength to force the seat up when pressure is relieved therefrom, thereby causing the stem 24 to follow the seat action without noise and to dependably force the valve into its lowermost position and close ofif the service water supply independently of any pressure which may or may not exist in the service water supply,

In my present form of valve I have enlarged the disk 22 and the Valve barrel so as to render these parts extremely effective in closing the inlet from the service water supply at all times when the disk 23 is not in upper position so that there is no practical danger of seepage around the disk 22.

It will, of course, be understood that the only time when water enters and is maintained in the tank I!) is when the seat is depressed and that when the seat is in elevated position the water flows by gravity and is forced by pressure from the tank into the bowl and that in the normal operation of the device the valve, being above the bowl, contains no water and no drainage would be available even if a vacuum or partial vacuum were developed in the service water supply pipe 35. However, if it should so happen (I do not know of a case where it has actually happened) that the drain from the bowl were stopped up and the bowl were flooded to its top and a vacuum were produced and maintained for a considerable time in the pipe 30, air would be exhausted from the tank I!) and then water might be drawn up from the bowl and seepage might occur and contamination of the service water supply would be imminent. To prevent such a possibility I have provided the structure shown in Figs. 1, 2, 9, 10 and 11.

On the top of the tank I9 I provide a threaded orifice 31 in which is screwed an air valve casing 32 consisting of a barrel in which operates a piston 33 moved upwardly and downwardly by a float 34 through the instrumentality of a rod 35. In the top of the casing 32 screws a plug 36 which has a central bore 31 opening exteriorly to the air through a port 38. The lower end 39 of the plug 36 constitutes the seat with which the piston 33 cooperates so that when the Water flows into the tank I9 the float rises and seats the piston or valve 33 against the seat 39 and prevents the discharge of air from the tank, but when the water falls in the tank and permits the float 34 to descend, air is admitted to the tank l9 through the port 38 and the water runs out, even if the bowl be already'flooded, over the top of the bowl until the spuds l8 and 20 are free of water and the development of a vacuum in tube 30 would have no power to suck water into the service water supply because no vacuum could be produced in tank I9.

The structure shown in Figs. 9 and 2 employ the float operated valve just described.

The structures illustrated in Figs. 1, 10 and 11 are for the same purpose as the float operating valve but employ merely pneumatic pressure for operating the vacuum relief valve. The pneumatically operated valve comprises a centrally bored plug 40 depending from the end of which is a tube 4 I. The plug 40 carries an annular upstanding flange 42 which assembles with a valve casing 43. Around the bore in the plug is an upstanding hollow nipple 44 having one or-more air vents 45 leading from the exterior to the interior thereof. Seating in the top of this nipple 44 is a short piece of pipe 46 to the top of which is secured by a screw 41 a flexible valve washer 48, the edges of which co-operate with the inner surface of the casing 43 suficiently so that a slight pressure will sufiice to carry the pipe 46to its upper limit of movement. When water flows from the tank, however, the washer 48 will flex and air will enter the tank. An additional valve seating member 49 is secured on top of washer 48 by screw 41. The top of the valve casing is so made that the valve seating member 49 seats thereon when the valve is forced upwardly by the air flowing from the tank acting on the washer 48. To further reduce the flow of air I'have provided in the top of the Valve seat a recess to receive the top of the screw 41, which is obliquely slotted, as at 50. In the top ofthe valve casing 43 is a. centrally bored plug 5| having an air port 52 therein. This apparatus works precisely like the float operated valve when the tank [9 empties below the bottom of the tube 4| to admit outside air to the tank l9.

In assembly either with top or rear opening bowls, spud I8 is assembled with the tank in any desired conventional way, such as is shown in Figs. 3 and 4, by means of a union consisting of a nipple 53 and collar 54 attached to spud l8 and a nipple 55 attached to the length of pipe 56 connecting with the tank. In the assembly between the valve and the top opening bowlpas shown in Figs. 3 and La union consisting of a nipple 51 and collar 58 is secured to the 'spud 20 and the collar 58 connects with-the stub 59 arising from the fitting 6E}. Fitting 60'sets upon a gasket 6| over the flush inlet port 62in the bowl. Fitting 60 has a bar or strap 63 running diametrically thereof, which is centrally bored and tapped. A bridge piece 64 is provided, in the center of which is secured by a'fit which will resist further revolution, a threaded stem 65. The bridge '34is inserted within the bowl and fitting 60 is screwed down upon it until a firm fit is secured before the spud 20 is attached.

The assembly with a rear opening bowl, as

shown in Figs. 6 and 8, comprises an L pipe 66, secured to the spud 20 by a union 61. The lower end of the L of pipe 66 terminates in a vertical plate 68 which is laterally extended to permit of receiving elongated apertures 69 opposite the lower ends of the bolts 10 which are employed for mounting the cover 26. A special form of eye bolt H with a cylindrical eye engages with the bolt 10 and extends out through the slot 69 and is secured in place by nuts 12. This constitutes a very firm and dependable, and yet simple, mounting for the valve and tank and provides an installation also identical with the top bowl assembly except for a slight displacement of the tank with respect to the bowl.

Having described my invention what I claim is new and desire to secure by Letters Patent:

1. In seat operated water closets including a bowl, a tank, a seat operated valve establishing communication between a water supply port and said tank and closing communication between said tank and said bowl in one position and closing said water supply and opening communication between said tank and said bowl in another position, means for closing said tank against the escape of air while it is receiving water and permitting air to enter said tank when the water has been discharged therefrom,. comprising a tube extending from the top of said tank to adjacent the bottom thereof, the top of said tube having communication with the air and the bottom thereof opening into said tank and an air operated valve located in the passageway of said tube.

2. In combination with a staple washed down back expansion spud closet bowl, a seat operated flushing equipment, including a pressure tank, a seat, seat operated means for charging and discharging said tank, means for assembling said elements comprising the standard seat bolts passing through the standard holes in said bowl for attaching said seat and laterally extending means engaging said seat bolts to which are secured the 20 flushing elements.

JOHN A. BROWN.