US320398A - Device for flushing tanks - Google Patents

Description

(No Model.) 3 Sheets-Sheet 2. A. ROSEWATER. DEVICE FOR PLUSHING TANKS, SINKS, &c.

Patented June 16, 1885.

WITNESSES O6 M 9 4;

u. PETERS, Pholo-hfiwgnphen Wuhinglun. o. c.

3 SheetsSheet 3.

(No Model.)

A. ROSEWATER.

DEVICE FOR PLU'SHING TANKS, SINKS, &c.

N0 320,898. Patented June 16, 1885.

1.7V V'EJV TOR Attorneys.

WITNESSES N. PEYERS. PholwLilhngnphar. wanhm mn, 0. c.

UNTTED STATES PATENT @EETQE.

ANDREW ROSEYVATER, OF OMAHA, NEBRASKA.

DEVICE FOR FLUSHING TANKS, SEN KS, 84.0.

SPECIFICATION forming part of Letters Patent No. 320,398, dated June 16 1885.

Application filed April 14, 1885. (No model.)

To all whom it may concern:

Be it known that 1, ANDREW Rosnwn'rnn, of Omaha, in the county of Douglas and State of Nebraska, have invented certain new and useful Improvem nts in Devices for Flushing Tanks, Sinks, &c.; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, which form a part of this specification, and in which- Figure l is a vertical sectional view of a tank provided with my improved flushing device for sewers, kitchen-sinks, or similar means of sewage. Fig. 2 is a similar view, on an enlarged scale, of the device. Fig. 3 is a vertical sectional view of a tank provided with a modification of the device. Fig. 4 is a similar view of another modification of the device. Fig. 5 is a sectional detail view, on an enlarged scale, of a portion of the modification shown in Fig. 3; and Fig. 6 is a detail view of the valve mechanism shown in Fig. 4.

Similar letters of reference indicate corresponding parts in all the figures.

My invention has relation to devices for automatically flushing tanks in sewers, kitchen-sinks, or similar sewage apparatus; and it consists in the improved construction and co mbination of parts of the same, as hereinafter more fully described and claimed.

In the accompanying drawings, the letter A indicates the tank into which the delivery-pipe B opens, and an inverted siphon-pipe, G, has its upwardly-bent end opening into the bottom of the tank, and has an air-pipe, D, opening in the upper portion of its other leg, which opens into the sewer, the said air-pipe opening into the tank with its upper end above the high-water levelof the tank. A bell-shaped air-chamber, E, is supported upon feet F in a recess, G, in the bottom of the tank, and has its open lower end placed over the open end of the siphon-pipe O, which opens in the said recess, and a pipe, H, enters the top of this air-chamber through an opening, I, in the same, and is formed with a cylindrical chamber, J, at its upper end. The lower end of this chamber is provided with a Valveseat, K, upon which fits a conical valve, L, having an upwardly-projecting stem, M, upon which is secured a cylindrical float, N, and which has its upper end guided in a vertical bearing in a crossbrace, O, in the chamber. The upper end of the chamber is provided with a cover, P, and has a number of perforations, Q, which are above the high-water level, and the lower end of one leg of a siphon-pipe, It, enters the chamber at its lower end above the valve-seat, while its other leg enters a pipe, S, the upper end of which opens above the high-water level, and the lower end of which opens into a bellshaped chamber, T, supported above the bottom of the recess G in the bottom of the tank, having its widemouth extending below the lowwater level, the lower end of the pipe S being above the said level. The upwardly-bent lower end of a pipe, U, enters this chamber, having the said end projecting at the low-water level, and the upper end of this pipe enters pipe Hbelow the valve seat. The high-water level is indicated in the drawings by a dotted line, a; x, and the low-water level by a dotted line, 3! y, and the upper bent end of the siphon-pipe R is in the high-water level. It will now be seen that as the fluid rises in the tank it will enter pipe S through the bell-shaped chamber at its lower end, and will rise in the siphon-pipe R until it reaches the doubled end of the same, when it will descend through its downwardlybent leg and enter the chamber J, where it will raise the float, and thus raise the valve, which will allow the air compressed within the airchainber E to escape, and allow the fluid in the tank to rush into the said chamber and from it through the inverted siphon-pipe G into the sewer. As the fluid sinks in the tank, its level will fall below the end of the siphon-pipe R in pipe S, and the fluid will be drawn out of the chamber J, allowing the float and valve to settle, while the fluid will continue to be drawn into the open end of the inverted siphon-pipe O, the air-chamber serving as one leg of a siphon until the fluid reaches below the lowwater level, when the upwardly-bent end of pipe U will be uncovered, allowing air to enter into pipe H and the air-chamber, which will stop the flow ofthe fluid until the fluid again arrives at high-water level. The open end of siphon-pipe U is a short distance above the low-water level, which will prevent any fatty or greasy matter which will naturally float on the surface of the fluid from entering the siphon-pipe, the lower edge of the mouth of the air-chamber being below the low-water level, and no fatty or greasy matter can enter chamber T or pipe S, as the mouth of the said chamber is also below the low-water level, thus preventing any obstruction of the pipes by accumulated fat or grease upon the inner sides of the same, the said matter remaining in the tank until the latter may be cleaned from such matter by hand.

In Fig. 3 is shown a modification of the flushing device, in which pipe H is dispensed with, the chamber J being placed immediately over the aperture I in the top of the air-chamber, and pipe U enters the top of the air-chamber in place of entering pipe H.

The operation of this device is similar to the operation just described, the difference between the two devices being merely in the construction of the valve-chamber.

In Fig. 4 pipe H is shown extended up above'high-water level and formed at its upper end with the valve-seat and with a number of perforations around its closed top, and the chamber J is placed at the side of pipe H, opening into it from its middle, the stem of the float M, which is within the chamber, passing up through the top of the chamber and into the upper end of pipe H, which is bent to be at the same axis as the chamber, where it is secured in the valve, the stem being bifurcated, as shown at V, and passing up on both sides of the upper end of pipe H, having the upper ends of this bifurcated portion secured to a yoke, W, from which projects a shorter stem, X, which passes through a stufling-box, Y, in the closed top of pipe H, to the lower end of which the valve is secured. By this construction the fluid does not come in contact with the valve, preventing any possible cloggin g of the valve by impurities in the fluid.

It follows that other modifications may sug gest themselves during practice with the device, and I desire it understood that I do not confine myself to the exact construction as shown and described, but wish to reserve the right of any modifications made without departing from the spirit of the invention.

Having thus described my invention, I claim and desire to secure by Letters Patent of the United States- 1. In a flushing device for sewers and similar apparatus, the combination of a tank, an inverted siphon-pipe having one end opening above the bottom of the tank and having its other end passing into the discharge-pipe, a bell-shaped air-chamber placed with its month over the open end of the siphon-pipe, and

means, substantially as described, for allowing the compressed air in the chamber to escape,

, allowing fluid in the tank to rush out through the chamber and siphon pipe, as and for the purpose shown and set forth.

2. In a flushing device for sewers and similar apparatus, the combination of a tank, a discharge-pipe shaped as an inverted siphon,

having its open end projecting above the bottom of the tank, a bell-shaped air-chamber placed with its open mouth over the open end of the siphonpipe and provided with a valveseat in its top, a valve playing upon the said valve-seat, a tube or chamber extending from the valve-seat to above the high-water level in the tank, and means for opening the valve when the fluid in the tank reaches high-water level, as and for the purpose shown and set forth.

3. In a flushing device for sewers and similar apparatus, the combination of a tank, a discharge-pipe shaped as an inverted siphon, having its open end projecting above the bottom of the tank, a bell-shaped air-chamber placed with its open mouth over the open end of the discharge-pipe and provided with a valve-seat in its top, a valve playing upon the said valve-seat and opening upward, provided with a float, a casing extending from the valve seat to above the high-water level, and a siphon-pipe having its knee at high-water level, and having one leg entering the lower end of the casing above the valve-seat and having its other leg opening near the bottom of the tank, as and for the purpose shown and set forth.

4. In a flushing device for sewers and similar apparatus, the combination of a tank, a discharge-pipe shaped as an inverted siphon, havingiits open end projecting above the bottom of the tank, a bell-shaped air-chamber placed with its open month over the open end of the discharge-pipe and provided with a valve-seat in its top, a casing extending from the said valve-seat to above the high-water level, an u pwardly-opening valve playing upon the valve-seat and provided with a float, a vertical pipe open at its top and formed with a cup or chamber at its lower end raised above the bottom of the tank, a siphon-pipe opening with one leg in the said pipe and with its other leg in the casing above the valve-seat, and having its knee at high-water level, and a pipe having its lower upwardly-bent end opening into the chamber at the lower end of the vertical open pipe and having its upper end opening into the air-chamber below the valve-seat, as and for the purpose shown and set forth.

5. In a flushing device for sewers and similar apparatus, the combination of a tank, a

. discharge-pipe, U, shaped as an inverted siphon,and having its open end projecting above the bottom of the tank, the air-chamber E, having pipe H, casing J, having valve-seat K, closed top P, and perforations Q, valve L, having float N, vertical pipe S, having chamber 1 at its lower end, siphon-pipe R, opening in pipe S and in casing J, and having its knee in high-water level, and pipe U, having its lower upwardly-bent end'opening in chamber '1 and having its upper end opening in pipe H, as and for the purpose shown and set forth.

6. In a flushing device for sewers and similar apparatus, the combination of a tank havchamber, as and for the purpose shown and ing a recess in its bottom, an inverted siphonset forth.

shaped discharge-pipe having its open end In testimony that I claim the foregoing as projecting above the bottom of the said recess, my own I have hereunto affixed my signature 5 and an air-chamber placed with its mouth over in presence of two Witnesses.

the open end of the siphon-pipe, and having ANDREW ROSEWATER.

its lower edge below the low-water level in the tank, and means to supply air to the airchamber when the water-level is at low-water 10 mark and above the lower edge of the air- Witnesses:

Gno. W. TILLsON, Tnos. MCLEAN.

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