US989047A

US989047A - Apparatus for controlling the flow of liquids.

Info

Publication number: US989047A
Application number: US52368009A
Authority: US
Inventors: Albert Priestman
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-10-20
Filing date: 1909-10-20
Publication date: 1911-04-11
Anticipated expiration: 1928-04-11

Description

A. PRIESTMAN. V APPARATUS FOR CONTROLLING THE PLOW 0F LIQUIDS.

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989,047. Patented Apr. 11, 19 11.

R Ai warm ALBERT PRIES'IMAN, 0F PHILADELPHIA, PENNSYLVANIA.

APPARATUS FOR CONTROLLING THE FLOW OF LIQUIDS.

Specification of Letters Patent.

Application filed October 20, 1909.

Patented Apr. 11, 1911. Serial No. 523,680.

To all whom it may concern:

Be it known that I, ALBERT PRIESTMAN, a subject of the King of Great Britain and Ireland, and a resident of the city and county of Philadelphia and State of Pennsylvania, have invented an Improvement in Apparatus for Controlling the Flow of Liquids, of which the following is a specification.

In many instances it is desirable to vary the quantity of liquid discharged proportionally to variations in the area supplied. This is particularly desirable in connection with sewage disposal systems in which the sewage is distributed by a sprinkler or nozzle upon the surface of'a filter bed. To obtain uniform treatment of the sewage, it is necessary that it shall be distributed evenly on the bed. This cannot be accomplished with stationary nozzles by simply increasing and decreasing the radius of the spread without any variation in the quantity of liquid discharged, since the areas supplied will vary directly with the squares of the radii of the spread, and if the quantity discharged is constant for all radii, less liquid per surface unit will be distributed over the surface of the bed in greater areas than will be distributed overthe surface in less areas.

To obtain the even distribution of liquid it is necessary to vary the quantity of the liquid discharged proportionally with the spread or area supplied. As the radius of the spread-and consequently the area supplied-decreases, the quantity of liquid discharged must decrease, and vice versa. This result I accomplish by supplying the liquid to the nozzle from a tank or liquid con tainer of decreasing capacity or horizontal dimension from the top to bottom, which acts to decrease the volume of liquid outflow proportionately to the diminutionof areas successively supplied with liquid through the nozzle during the emptying of the container.

In the drawing is shown a vertical sectional view of the apparatus.

6 is the main feed pipe through which the sewage or liquid is supplied to the nozzle d, or other distributing device. This pipe 5 leads from the lower part of a liquid chamber h.

f is the liquid tank or container which has a portion of decreasing capacity and acts as the means for decreasing the volume of liquid outflow proportionately to the diminution of the areas successively supplied through the nozzle. As shown, the walls f are inclined so that the tank has a portion of decreasing horizontal dimension from its top to its bottom.

g is a siphon for discharging the liquid from the tank f to the chamber IL. The

intake end of tlie siphon is located with its receiving end at the smallest or lowest part of the tank f, and the discharge end is in the lowest part of the chamber h. While the discharge of the liquid at the nozzle d is controlled by the head of liquid in the chamber it, that head is controlled by the flow through the siphon g, and as that flow is controlled by the portion f of varying horizontal dimension from the top to bottom, the liquid outflow from the nozzle (Z will vary proportionately with the areas successively supplied through said nozzle.

I have shown the siphon provided with air pipes for automatically controlling its operation.

z' is a pipe leading from near the intake end of the siphon up above the liquid level and then down through the discharge-leg and terminating at a distance above its end.

j is an air pipe leading from the crown of the siphon up above the normal liquid level, and then down in the discharge chamher it where it terminates in a liquid seal 7" at the level of the outlet to the pipe 6.

What I claim is as follows:

1. In combination, a liquid container, a siphon for-discharging the contents of the same and a nozzle connected with the discharge end of the siphon, the said container having a liquid containing portion of decreasing horizontal dimension from its top to its bottom, and the intake limb of the siphon being located with its receiving end at the lowest and smallest part of the conof said liquid container to the chamber, and tainer. anozzle supplied from said chamber. 10

2. In apparatus for controlling the flow of In testimony of which invention I hereliquid, the combination of a liquid container unto set my hand. 5 having a portion of decreasing horizontal ALBERT PRIESTMAN.

dimension from its top to its bottom, a Witnesses: liquid chamber, a siphon for discharging ERNEST HOWARD HUNTER, the liquid from the lowest and smallest part JOSEPH" H. SUNDHEIM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents. Washington, D. G.