US2190773A - Toilet flushing apparatus - Google Patents

Description

' Feb. 20, 1940. 1 T. J. D NN 2,190,773

TOILET FLUSHING APPARATUS Filed 001.. 23. 1939 2 Sheets-Sheet 1 THor ms J. DUNN 3nventor Feb. 20, 1940. T. J. DUNN 2,190,743

TOILET FLUSH I NG APPARATUS Filed Oct. 23, 1939. zsheets-sheet 2 T ohns J. DUNN 3nventor Patented Feb. 20, 1940 I p 1 UNITED STATES PATENT OFFER 2,190,7"73 V TOILET FLUSHING [APPARATUS Thomas J. Dunn, Laurinburg, N. 0., assignor of one-half to. Lonnie Hammond, Laurinburg Application October 23, 1939, Serial No. 300,793

. v 'iclaims. (01. 4-40) This invention relates to a toilet apparatus and more; especially to a means for flushing toilet devices such as commodes and urinals. It is a well known fact that the average toilet now in use, creates much objectionable noise while it is i being flushed, which continues until the tank from which the water flows fills up againto original height. This noise is partially due to the manner in which the water is introduced into the l'o bowl and also, partially due to the actuation of the valve which allows the water to again refill the toilet tank.

It is, therefore, an objectof this invention to provide a toilet flushing apparatus which will serve to minimize the noise which is created by the emptying and filling of the water closet as a result of a flushing operation. Broadly speaking,

the invention comprises the combination of a bowl, a source of water under pressure ends.

tank disposed intermediate the source of water and the bowl into which the water is allowed to accumulate or enter prior to introducing it into the bowl. This intermediate chamber is so arranged that the water after entering is not under 5 pressure, but when the toilet is flushed it is allowed to move by gravity into the toilet bowl.

It is a further object of this invention to provide a toilet apparatus of the class described with a novel apparatus for creating a secondary flush 1 b in the toilet bowl so that the gases from the sewage pipe will not be allowed to move upwardly into the room while the toilet bowl is being refilled to the normal water level after the flush has been completed.

Some of theobjects of the invention having been stated, other objects will appear as the description proceeds when taken in connection with the accompanying drawings, in which- Figure 1 is a front view of a toilet showing 94i certain portions thereof in section and illustrating my invention;

Figure 2 is a view looking at the left hand sire of Figure 1, showing the toilet bowl in section;

Figure 3 is a vertical sectional View looking L45 from the front side of the toilet showing a slightly modified form of the invention.

Referring more specifically to the drawings, the numeral l0 denotes a conventional toilet bowl having a seat i l pivoted to the upper side thereof 450 as at. This toilethas an inlet opening M and an outlet opening 15 and when the water is introduced into the bowl it is expelled by well known syphon principles through the outlet. 1

Communicating with the inlet opening I4 is an 55 opening It in the lower portion of a tank ll,

said tank" havingupper and lower compartments i8 and 19 respectively therein. These compartments are separated bya partition 20. The upper portion of the compartment l8 has an opening which isnormally closed by plate 26 5 her 32 serves to keep the valve tightly seated inthe port 29. i i

The valve 3% is secured to the upper end of a vertically disposed rod 35, said rodhaving its intermediate portion slidably mounted in the central portion of partition 20. The lower end of the rod 35 has a pin 36 disposed therein which pin also penetrates suitable slots 3'! in horizontally disposed lever 38. Lever 33 is pivoted as at 39 intermediate its ends to a bracket 48 extending 25 iromthe interior sidewall of the lower compartment l9.

The other end of the lever 38 projects laterally through a slot H in the sidewall of the tank and extends a substantial distance beyond the 30 exterior thereof so that one may engage this lever when it is desired to fiush the toilet. When it is desired to admit water into the compartment E8 the lever 38 is rotated in a counterclockwise man ner in Figure 1 which will raise the valve 36 oil of 35 the opening 29 to allow the water within the dome 32 to enter the chamber It.

It is very essential that the closing of the valve 30 be somewhat delayed, therefore, a suitable dash pot 44 is provided, said dash pot beingpiv" oted as at 45 tothe lower portion of the partition 20. This dash pot has a piston 36 slidably mounted therein which is connected by way of a piston rod 47, at=a point such as 49 on lever 38. This dash pot has a spring-pressed intake valve 50 5 in the upper end thereof and a veryhsmall port 51 in the upper side. Both the valve 5i and the port 51 are disposed at a point above the piston flfi. When the lever 38 isrotated in a counterclockwise manner in Figure 1 the valve EU will 50 automatically open to allow air to freelyenter above the piston so that practically no resistance will be offeredby the dashpot to the counterclockwise rotation of this lever. On the other hand, when thetoilet has been flushed and the u I have to pass through the small port As this port is very small, the air will escape comparatively slowly, and the closing of the valve 3!] to the position as shown in Figure 1 will be somewhat delayed. This will provide sufficient time for the water under pressure to enter the chamber i3 64 and 65.

for toilet flushing purposes.

The return of the valve 30 to normal position is also somewhat delayed by a bell shaped member 55 which is secured to the rod 35 as at '58. Upon the raising of the rod 35 and the valve 30, during a flushing operation the bell-shaped apparatus is likewise raised, and when the water escapes into the chamber l8, air will be trapped in the upper interior portion of the member 55, which will serve to buoy this member upwardly. The member 55 returns to the seated position after the water in compartment 18 escapes and then the water within member 55 is allowed to escape into the compartment ill by way of notches 51 in the lower rim of the bell.

Another function of this. bell shaped member 55 is to prevent water from escaping from chamber 18 into the compartment :59 therebelow at a point where the rod 35 is slidably mounted in partition 20; It will be noted that a sleeve 2! serves to slidably confine the rod 35 in an upright position. By having this bell-shaped member the air trapped within the upper portion thereof during a flushing operation will serve to prevent water from rising above the top of the sleeve 2!; consequently water cannot escape :from chamber [8 into chamber I9, except through pipes to be later described;

Also it is necessary to provide some means to allow the air, which is displaced by the water coming from dome-shaped member 32 into the compartment i8, to escape.

bore 58 in the intermediateportion thereof, said bore having a horizontal bore 59 communicating therewith and also with compartment l8. The lower end of the bore 58 has a second horizontally disposed bore til which allows the air within the bore 58 to escape into compartment 19. Consequently as the water enters and displaces the air in the upper compartment I8, this air will be allowed to escape into compartment it by way of bores 59, 58 and'fill.

After the water comes into the upper compartment IE it is allowed to escape therefrom into the bowl by means of gravity. The means for conducting this water into the bowl comprises a pair of L-shaped pipes 62 the intermediate portions thereof being mounted in the partition 21]. The upper ends of these pipes have large horizontal bores 83 therein as well as smaller bores These bores allow the water within the compartment 18 to enter the pipes till. The lower ends of the pipes -62 are connected-by means of a union 68 to a T-shaped pipe 67, the lower end of the T--shaped pipe being adapted to penetrate the opening it in the lower portion of the tank I! as well as theinlet opening M of the bowl. It is seen that after the water is released from the dome 32 into the chamber l8 that the flow therefrom into thebowl will be at its maximum when the water level is highest. As the water level lowers beneath holes 65, then holes 6d andfinally holes 63, the flow "of the water will gradually decrease.

In order to make this provision the rod 35 has a vertically disposed These holes 64 and Biprovide a secondary flush which serves to keep water in the bowl during the flushing operation and thereby prevent sewer pipe gases from escaping into the toilet room.

Figure 3 shows a slightly modified form of the invention in which the dome shaped member 32 in the preceding form is omitted. Instead, a diaphragm flush valve is substituted. A pipe 68 leads to the intake chamber 69 of the valve casing 76. This pipe is adapted to have water under pressure therein. Disposed within the casing l6 is a main valve seat ll which seat is secured on the upper end of a sleeve guide l2. This guide is mounted for vertical sliding movement within and concentric with the surrounding pipe (3. The valve seat ll normally rests on the upper rim of the pipe 13. Secured to the upper end of sleeve 12 and above the valve seat H is a leather cup washer "it, the downturned rim of which is adapted to expand against the interior of bore it within an inverted metallic cup member "5, said member 76 being held in a stationary position within the casing 10. Under normal con- '-diti0ns the water pressure enters from pipe 68 into compartment 39 from whence it flows upwardly through a small bore TI and into chamber.

'55. This pressure in chamber E5 on the top of the valve seat H and the cup washer M tends to push these members downwardly to cause the valve seat to fit on top of the upper rim of pipe 13 and thereby prevent any water from escaping from compartment 15 into the pipe 13. It will be noted however that the guide sleeve '32 has a bore 18in the upper end thereof which is normally closed by a valve 79, said valve having a stem 86 extending downwardly therefrom, the

lower end of which is disposed in close proximity to a horizontally slidably mounted pin 8i. This pin is normally pressed to the left against the right handend of an operating handle $2 by means of a suitable compressed spring 83. Since the left-hand end of the pin 8| engages the center of the right hand end of the operating handle, it is evident that when the free end of this handle is rotated in any direction the pin 8i will be pushed to the right against the lower end of valve stem 80.x When this is done the water which is stored under pressure within the compartment l5 will be allowed to flow downwardly and escape through the opening Tit-from whence it will flow into a pipe 85. Upon the release of the water from the compartment E5, the pressure within the chamber 63 will be greater than the pressure within the compartment '55; consequently, the sleeve 72 together with the cup-shaped member '63 will move upwardly and at the same time unseat the valve H to allow the water to flow in a comparatively large stream 69 over the upper rim of pipe l3 and then downwardly into pipe 85. g l

The pipe 85 extends downwardly and intoa tank 86. The lower end of the pipe 35 is curved to a substantially horizontal position as at 85a and it will be noted that the curved portion is sure pipe 6'! through the above described valve mechanism into the upper compartment 90, it is allowed to escape therefrom by way of gravity 2,190,773 7 into the, bowl It in a manner similar to that in the preceding form.

It is seen that the partition 8'! within the tank 86 has a pair of pipes 9| extending upwardly therefrom, said pipes having holes 92, 93 and 94 prising a water tank, a pipe establishing comtherein which serve as escape ports through which it the water is allowed to pass from the compartment 953. These holes are progressively smaller, The

the larger being iii? and the smaller being 94. lower ends of pipe iiiare connected to T-member 95 the lower end of said member is disposed in" the opening M. i

In order to provide means for the air to escape upon the filling of the compartment 90 with water, a pipe vent 9'! is provided the upper end of which is disposed in close proximity to the top of compartment 90 and the lower end penetrating the partition M. This pipe will allow the air to escape or to enter as the water is entering or leaving the compartment 95]. This tank 86 is also provided with a door 98 which is secured to the upper sideof the tank byany suitable means such as stud bolts 99. This door may be removed when it is desiredto inspect theinterior or compartment 9B.

In the drawings and ventionand although specific terms have been employed they are used in a generic and descrip tive sense only and not for purposes of limitation, the scope of the invention beingset forth in the i appended claims,

prising a water tank, a pipe establishing communication between the tank and the bowl, saidpipe having a plurality of holes therein disposed at different levels in the tank, means for admitting a Volume of water to the tank at a rate of flow which is in excess of the rate of flow through said holes. i

,3. Toilet flushing apparatus comprising a tank, a pipe penetrating the tank and having a plurality of ports therein at different levels, means specification there has been set forth a preferred embodiment of the infor admitting a predetermined quantity of water to the tank to flow through said ports to flush the toilet, the size of the ports diminishing from the highest level to the lowest level.

l. Apparatus for flushing a toilet bowl, communication between the tank and the bowl, said pipe having a plurality of holes therein disposed at different levels in the tank, means for admitting a'volurne of water, to the tank at a rate of fiow which is in excess of the rate of flow through said holes, the size of the holes in said pipe diminishing from the highest level to the lowermost level.

stored Water to the tank, and means associated with the discharge pipeifor gradually diminishing the rate of flow ofwater from the tank to the bowl after the stored water has been admitted to the tank.

6. Apparatus for supplying flushing water to a toilet bowlcoinprising a tank, a discharge pipe leading from, the tank to the bowl, the upper portion of the discharge pipe extending va substantial distance and having a plurality of ports therein, the ports increasing in size in direct proportion to their distance from the bottom of the tank, and means for admitting Water to the, tank at a rate greater than the rate of overflow.

'7. Apparatus for supplying flushing water to a toilet bowl comprising a tank, a discharge pipe leading from the tank to the bowl, the upper portion of the dischargepipe extending a substantial distance above the bottom of the tank and having a plurality of ports therein, the ports increasing in size in direct proportion to their distance from the bottom of the tank, a storage compartment for Water disposed above the tank, a valve in the storage compartment for establishing communication between the compartment and the tank, means penetrating the tank and connected to the valve for opening the valve to flow into the tank.

THOMAS J. DUNN.

Images