US1493652A

US1493652A - Liquid-treating apparatus

Info

Publication number: US1493652A
Authority: US
Inventors: Inos B Tanner
Original assignee: Joseph E Nelson & Sons
Current assignee: Joseph E Nelson & Sons
Priority date: 1923-05-04
Filing date: 1923-05-04
Publication date: 1924-05-13
Anticipated expiration: 1941-05-13

Description

may w ,-19% msmz afs. TANNER LIQUI TRETING APPARTUS l Filed May 4.' 1923 2 Staats-Sheet 1 ll! i! i. B. TANNR LIQUID TREATING APPARI'US Filed May 4. 1923 .2 Shouts-Sheet .2

if ,e0 f3',

Patented May i3, 1924.

INOS IBQ'IANNER, 0F CHICAGO, ILLINOIS, ASSIG-NOR TO JOSEPH E. NELSON 8a SONS, CHICAGO, ILLINO'IS, A COPARTNERSHIP COMPOSED OF JOHN E. NELSON ANI) WILLIAM H. NELSON.

LIQUID-TREATING APPARATUS.

Application filed May 4,

To all whom t may concern.'

.Be it known that I, INos B. TANNER, citizen of the United States.,y residing at Chicago, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in Liquid-Treating Apparatus, of which the following is a full, clear, concise, and exact description'.

My invention relates to liquid treating apparatus and in its preferred embodiment is an improvement upon the liquid treating apparatus disclosed in my United States Patent 1,407,499, dated February 21, 1922. rIhe apparatus of that patent included a settling chamber, a chemical tank, a source of liquid under pressure, a pipe through which the liquid passes into the settling chamber for treatment, a chemical pipe also discharging into the settling chamber and having a port in its side through which chemical passes from the chemical tank into the pipe, a valve within the liquid .pipe and controlling ports in said pipe and rising and falling according to the pressure of the liquid, and mechanism governed by said valve and governing the height of the chemical pipe, whereby the varying volumes of water and chemical will he in fixed proportion to secure the required reaction between the chemical and the materials that are to be precipitated out of the liquid. Water may readily be softened by means of such an equipment having the characteristics of the invention. The mechanism controlled by the valve within the liquid pipe included an intermediately pivoted lever connected at one end with the valve and at its other end with the chemical pipe.

In accordance with my present invention I employ a rack bar upon the valve that controls the admission of the liquid to be treated, and motion transmitting gearing between the chemical valve and rack bar. This gearing preferably includes a segmental gear in mesh with the rack bar, a bell crank lever carrying said segmental gear and also .carrying a valve incontrolling relation to the port through which the chemical is discharged. This chemical valve is thus moved in proportion to the movement of the liquid valve, so that the liquid and chemical are always in fixed proportion irrespective of the rate at which the liquid is 1923. Serial No. 636,7M.

supplied for treatment. This mechanism is not only an improvement upon the apparatus disclosed in my aforesaid patent but is of such a nature that more than one chemical discharge valve may be controlled by a single valve in the liquid pipe so that a plurality of differing chemicals may be admitted to the liquid where such are required to treat the liquid.

I will explain my invention more fully in connection with the accompanying drawingsin which Fig. 1 is a view, mainly in sectional "elevation, illustrating the pre-` ferred `embodiment of the invention; Fig. 2 is a vertical sectional view on line 2-2 of Fig. 4; Fig. 3 is a vertical sectional view on line 3 3 of Fig. 4; Fig. 4 is a view in elevation, partially in section, of the chemical tank structure; and Fig. 5 is a plan view of the structure shown in F ig, 4 with parts broken away.

yLike parts are indicated by similar characters ofreference throughout the different figures. f

The tank l is of suitable formation and .is provided with a central settling chamber 2, which may be in the form of a stand pipe. This chamber has no communication with the tank spacey surrounding it, except at the bottom, in accordance with well known practice.`

The water to be treated is supplied from the city mains or from any other suitable source and flows through the riser 3 that may pass upwardly through the settling :chamber 2 to the place where the raw water is to be discharged into such chamber. This chamber is provided with a continuation in the form of a funnel 4 at the upper end of the chamber. As will be more fully hereinafter set forth, ,the water passing from the pipe 3 into the settling chamber 2 controls the iow of chemical from thechemical tanks 5, 5 into the funnel 4 so that the chemical will flow in quantities proportional to the amount of raw water discharged into said funnel. The mixture of water and chemical is initiated in the funnel and is promoted by theupright perforated interleaved bai?A fle plates 6, 7 carried by the horizontal imperforate passage walls 8, 9 and the horizontal perforated baffle plates 10, il. The

baille plates form a part of the subject matter ot' my copending application Serial No. 487,121, filed July 23, 1921.

The chemicals are supplied to the chemical tanks from separate chemical supply tanks of which one 12 is shown. The piping` and lother equipment pertaining to each chemical tank are like that pertaining to the other. The chemical supply tank 12 shown discharges into its chemical tank through the supply pipe 13, thesupply tank receiving unemployed chemical back from the chemical tank through the return pipe 14. The chemical tank 5 alsohas a supply pipe 13 and a return pipe 14 pertaining to its own supply tank. not shown. Each

supply pipe

13, 13 is desirably continued nearly to the bottom of its corresponding chemical tank 5 or 5 and is` there provided with a horizontal outlet slot opening 132 through which the chemical is distributed in sheets initially in a horizontal direction. Each chemical tank has a flaring side, as indicated at 1.33 in Fig. 2, so that the sheet of chemical coming into the tank is given a reverse motion, the inlet end of the pipe being at the side of the chemical tank opposite the flaring 133. The levels of the chemical in the chemical tanks are defined by the position of the upper ends of the

pipes

14, 14 and are maintained at these levels as long as the corresponding pumps (pump 15 for tank 5 being only shown) are in operation, such pumps serving to maintain the flow of chemical into the corresponding chemical tanks in suicient volume to be in excess of that required so that the level of the chemical in the corresponding chemical tanks 5, 5 is maintained constant.

rlhe upper end of pipe 3 is provided with weir ports 16 that are elongated lengthwise. of the pipe. A weighted valve 17YA has a range of movement extending through the zone of said ports and slightly on "either side thereof, the valve functioning' to completely close said pipe and to fully open said ports or partially` open the samepdepending upon the head or pressure of the water flowing upwardly in said pipe. Valve 17 has an upwardly extending stem 18. This stem is formed with as many upright racks 19, 19 as there are chemical tanks 5, 5, each rack being individual to a tank. Segmenta-

l gears

20, 20 are respectively in mesh with said racks and are carried upon ends oiE bell crank levers 21, 21 stationarily pivoted at 22, 22. The otheil ends of these bell cranks carry

valves

23, 23 in controlling relation to ports 24, 24 in the chemical tanks. The pressure exerted by the weighted valve 1T upon the water in thepipe 3 counteracts the pressure of this water upon the valve suiiiciently to enable the valve to control the position of the

valves

23, 23. The

ports through which the chemicals and water flow are so proportioned and interrelated that the amount of water passing through the port-s 16 and the amounts of chemicals iiowing through ports 24, 24 into the funnel 4 are in fixed proportion, the volumes ot chemicals flowing through the ports 24, 24 increasing or decreasing with any increase or decrease oi3 the flow of water. The water and chemical, in varying volume 'but in fixed proportion, are initially received in the 'funnel 4 'from which they are passed to the channel containing the battles 6 and 7 and from this channel through the perforated battles 10, 11 as hitherto fully described.

A filter 25 may be disposed in the tank 1 in which the softened water is held for use, this water being finally filtered before it is withdrawn.

lVhile two chemical tanks and attendant equipment are shown, it is obvious the number may be increased or reduced- Vilhile I have herein shown and particularly described the preferred embodiment ot my invention I do not wish to be limited to the precise details of construction shown as changes may readily be made without departing from the spirit of my invention, but having thus described my invention I claim as new and desire to secure by Letters Patent the following 1. Liquid treating apparatus including a source of liquid furnishing liquid to be treated under pressure; a pipe communicat c ing with said source; a valve in said pipe operated by the liquid, the pipe having a port closed by said valve and also opened to varying extents by the valve according to the pressure exerted upon the valve by the liquid; a settling chamber into which the liquid to be treated is discharged through said port; a chemical tank; a chemical valve in controlling relation to a port formed in the chemical tank which is positioned to discharge chemical into the settling chamber; a rack coupled with the first valve; and motion transmitting gearing between the rack and the second valve.

2. Liquid treating apparat-us including a source of liquid furnishing liquid to be treated under pressure; a pipe communicating with said source; a valve in said pipe operated by the liquid, the pipe having a port closed by said valve and also opened to varying extents by the valve according to the pressure exerted upon the valve by the liquid; a settling chamber into which the liquid to be treated is discharged through said port; a chemical tank; a chemical valve in controlling relation to a port formed in the chemical tank which is positioned to discharge chemical into the settling chamber; an upright rack coupled with the first valve; and motion transmit ting gearing between the rack and the second valve.

3. Liquid treating apparatus including a source of liquid furnishing liquid to be treated under pressure; a pipe communicating With said source; a valve in said pipe operated by the liquid, the pipe having a port closed by said valve and also opened to varying extents by the valve according to the pressure exerted upon the valve by the liquid; a settling chamber into Which the liquid to be treated is discharged through said port; a chemical tank; a chemical valve in controlling relation to a port formed in the chemical tank which is positioned to discharge chemical into the settling chamber; a rack coupled with the first valve; a bell crank lever; a segmental gear upon one end of the lever and in mesh With said rack; and a valve upon the other end of said lever and in controlling relation to the second valve.

4L. Liquid treating apparatus including a source of liquid furnishing liquid to be treated under pressure; a pipe communicating with said source; a valve in said pipe opera-ted by the liquid, the pipe having a port closed by said valve and also opened to varying extents by the valve according to the pressure exerted upon the valve by the liquid; a settling chamber into Which the liquid to be treated is discharged through said port; a chemical tank; a chemical valve in controlling relation to a port formed in the chemical tank Which is positioned to discharge chemical into the settling chamber; an upright rack coupled with the first valve; a bell crank lever; a segmental gear upon one end of the lever and in mesh with said rack; and a valve upon the other end of said lever and in controlling relation to the second valve.

In Witness whereof, I hereunto subscribe my name this 12th day of March mos B. TANNER.