US2957182A - Siphon with manometric discharge control - Google Patents

Description

Oct. 25, 1960 P. s. SUAREZ 2,957,182

SIPHON wrm MANOMETRIC DISCHARGE CONTROL Filed Oct. 23, 1956 EIEJEH BEE g1- JNVENTOR. PEDRO SANCHEZ SUAREZ United States Patent @fhce Patented Oct. 25, 1960 SIPHON WITH MANOMETRIC DISCHARGE CONTROL Pedro Sanchez Suarez, Madrid, Spain, assignor to Dispgssitlvps Industriales S.A., Avila, Spain, a corporation pain Filed Oct. 23, 1956, Ser. No. 617,850

Claims priority, application Spain Jan. 12, 1956 1 Claim. (Cl. 4-42) The present invention relates to siphons with manometric discharge control, the essential aim of which is to effect the rapid discharge of liquid, contained in a water closet or tank, intermittently or at The improvements consist of the disposition of elements which perfect the discharge of the liquid in such a way, that its functioning is rendered more rapid, more effective and more economical than hitherto known in hygienic containers and other uses.

The manometric control apparatus consists of the following essential elements:

A pneumatic stopper with a control, whose function is to produce the rapid discharge of the liquid of the tank at the will of the user of the apparatus, or intermittently.

A discharge interrupter, consisting of a pressure equalising tube which prevents the above named pneumatic stopper being left without liquid on termination of the discharge, thus assuring normal functioning of the subsequent discharge.

A bed evacuator, for the purpose of reducing to the minimum the liquid remaining at the bottom when the discharge is terminated, so as to utilize the volume of the container to the maximum extent.

The construction material, as well as the geometrical form of the section of the double or multiple siphon and of the apparatus can be of any kind desired.

In order to facilitate the description and explain the function of these new appliances, apparatus in accordance with the invention will now be described, by way of example, with reference to the accompanying diagrammatic drawing, wherein the Fig. 1 is a sectional elevation, and Fig. 2 is a side view partly in section of the apparatus.

Referring to the drawing, the apparatus which forms the object of the invention is placed inside a tank or water closet which is open to the atmosphere. The water is admitted into the tank by means of a valve 11 operated by a handle outside the tank and is discharged through the outlet pipe 12. The valve 11 is closed by means of a float 13 when the water in the tank reaches a height designated by the dash line 14. The pneumatic stopper and control comprises an upwardly positioned U-shaped tube AB, the arm A is connected with a siphon branch 2 by means of the opening Y, and the other arm B is connected with the siphon branch 4 by means of a small open tube X and with a small reservoir D by means of opening F. Reservoir D is connected by means of a rubber tubing E to a rubber hand bulb P.

The discharge breaker consists of the tube RR, curved in its upper part, which joins branch 1 through an opening n and the water closet 10 through its lower open end m to the upper part of branches 3 and 4 of the siphon through opening r.

A trap L connects branches 2 and 3, and this trap is evacuated by a simple siphon 8-8 of very small section placed between branches 3 and 4 of the siphon.

The general functioning of these new appliances, connected to the siphon is as follows:

The water feeding the container 10 enters by the lower part of branch 1 of the siphon and let it be assumed that, owing to the previous discharge, liquid has remained in the small reservoir or tank D and in the U-tube AB of the pneumatic stopper, and the trap L which extends approximately to the edge of branches 2 and 3.

The Water which enters branch 1, as shown by the arrow 15 in Fig. 1, will rise and flow over the upper edge of the partition 16 separating branches 1 and 2, but because of the trap of water L, it will not be able to enter freely, because an air-chamber, or an air cushion, will be slowly compressed and will retard the entrance of the water into the branches of the siphon. Meanwhile the water will continue to enter the container 10, and as a result, the level of water in it and in branch 3 will continue to rise; also, the compressed air of the air cushion entering tube A through opening Y, will make the water rise in tube B. As water continues entering the container 10, a critical moment will come, when the level in branch 3 reaches the upper edge of the partition separating it from branch '4, and simultaneously the level in tube A will descend to the lowest point; then the compressed air of the air cushion will be expelled through the end of tube X to branch 4, priming the siphon which discharges rapidly through branch 4. Before the end of the discharge the priming of the siphon is cut out because the discharge breaker constituted by the tube R--R forming a pressure equalizer transmits atmospheric pressure from the then uncovered port n to the common upper end of the branches or arms 3 and 4, which prevents the water in the tubular connection AB in the container D from discharging through X when the upper ends of the branches 1 and 2 have emptied. At the same time, there remains a water seal in the trap L between the branches or arms 2 and 3, which seal empties partly through the simple siphon shown at S-S. However, the opening into said simple siphon lying somewhat higher than the lower edge of the partition between said branches or arms 2 and 3, said simple siphon ceases operating as soon as the water seal has sunk to its minimum level underneath said lower edge as illustrated in Fig. 1.

The operation disclosed up to now is that of an intermitent flushing, since the water continues entering the container 10 so that it will after the discharge rise again inside the container and close the opening 71. Following this, the operations begin over again the manner disclosed: there is formed in the upper ends of the arms of branches 1 and 2, an air cushion which no longer communicates with the remainder of the double siphon as soon as the water passing over the partition separating 1 and 2, has filled the branch or arm 2 up to the upper edge of said partition. The air cushion enclosed above the upper edge of said partition inside the branches 1 and 2 is compressed until enough energy is stored therein upon further rising of the water level, so that as described hereinabove, a pressure is exerted through the comparatively narrow tube AB. As precedingly, the water as expelled out of AB, so as to produce an outlet for the air in the air cushion between the two first branches 1 and 2 and the upper end of the branch 4. The pressure of the air cushion being thus removed, the water can again flow through the siphon until the water level in the container 10, which fills obviously in a comparatively slow manner, drops again underneath the level of the port n. The other, controlled manner of operating the discharge consists in compressing the bulb P, so as to urge air through the pipe E into the container D. The latter empties thus through X and draws along with it the water in the pipe AB, so that communication is provided as in the preceding case through said pipe AB, with the upper ends of the branches 3 and 4. The pressure of the air cushion being thus cut out, the siphon is primed and the liquid will pass out of the container so that the discharge is obtained as precedingly.

If water is prevented from entering continuously the container, say through the agency of the valve 11 and float '13, no discharge is obtained unless the bulb is actuated as disclosed. In all cases, the-discharge through the bulb' P may be repeated Whenever the container is filled to a level above the upper edge of the partition between the branches 1 and 2.

Thus it is apparent that my arrangement operates in a dual manner and comprises merely a double siphon 1, 2, 3, 4 the input end of which lies inside the container and the output opens into the discharge. This siphon is provided with a pressure-equalizing port at n in its upwardly directed input branch 1 and is associated with pressureequalizing means RR connecting said port n with the lower end of the container, and with the upper end of the second elementary siphon 3-4 through port r while an auxiliary single siphon is adapted to empty the excess water in the water seal at the bottom of 2,3 into the discharge. The gist of the invention consists in providing said double siphon with an auxiliary U-shaped pressure releasing pipe connecting the upper ends of the elementary siphons 1, 2 and 3, 4 and with an auxiliary container D also opening into the upper end of the branches 3, 4 and adapted to be emptied into same and to draw the air at F out of the end of the pipe AB upon manual application of pressure at P into the pipe E opening into the auxiliary container D.

It is to be noted that the elements designated by A, B, D and E are not on the same plane with the elements designated 1, 2, 3 and 4, but are to one side thereof as shown in Fig. 2. Also opening F provides communication between branch B and reservoir D; provides communication between reservoir D and rubber tube B so that knob P is in communication with D by means of tube E and opening 6. 7

It will be understood that I have described the invention only in connection with a preferred embodiment shown in the drawing and that the invention is not to be 4 restricted to precise details of construction shown in the drawing, since various changes and modifications may be made without departing from the scope of the invention or sacrificing all of the many advantages derived from its use.

What I claim is:

In a flushing system, the combination of a container, a siphon carried therein and comprising two similar sections, each including an input ascendingchannel, an output descending channel and anupper upwardly convex channel connecting said two channels, and an intermediate section interconnecting the lower ends of the output channel of the first section with the output channel of the second section respectively, the lower end of the input channel of the first section opening into the container, a discharge channel forming a lower extension for the outputrchannel of the secondsection, an auxiliary channel in the shape of an upwardly facing U connecting the upper end of the descending output channel in the first section with the upper convex channel in the second section, said auxiliary channel being provided with a port just underneath last-mentioned convex channel, an auxiliary container fitted between the arms of the U- shaped auxiliary channel and opening into said auxiliary channel through last-mentioned port, means for blowing air into the bottom of said auxiliary container, a narrow inverted U-shaped tube connecting a point of the input channel of the second section slightly above the highest allowed level of the hydraulic joint in the intermediate; section of the siphon when drained with a point of the discharge channel, a connecting pipe opening into the main container near the lower end of the latter and lead ing to the uppermost point of the convex channel of the second section and means through which said connecting pipe communicates with the input channel of the first section at an intermediate point of its height.

References Cited in the file of this patent UNITED STATES PATENTS 1,421,531 Moras July 4, 1922 2,120,856 Collison June 14, 1938 2,615,173 Pegler Oct. 28, 1952

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