US656331A - Apparatus for purifying water. - Google Patents

Description

No. 656,33]. Patented Aug. 2|, I900. H. STILLMAN. APPARATUS FOR PURIFYI NG WATER.

(Application filed Mar. 28, 1900.)

4 Sheets-Silent I.

(No Model.)

WITNESSES:

In: warns PETERS co. PHOTO'UTNO" wAsnmm'ou. o. c.

Patented Aug. 2|, I900. H. STIQLMAN. APPARATUS FOR PURIFYING WATER.

(Application filed Mar. 28, 1900.)

4 She ets-Sheat 2.

(No Model.)

WITNESSES:

0.v wnsnwaron a c No. 656,33I. Patented Aug. 2|, I900.

H. STILLMAN. APPARATUSFORJURIFYING WATER. (Application filed Mar. 28, 1900 (No Model.) 4' $heetsSheet s.

WITNESSES: INVENTOR,

m: mums Ptrznwco, PHOTD-UTNO" WASNINGTON, D. c.

No. 656,33l. Patented Aug. 2|, I900.

v H. STILLMAN.

APPARATUS FOR PURIFYING WATER.

(Application filed Mar. 28, 1900.)

4 Sheets-Sheet 4.

(N9 Indol.)

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WITNESSES: m/ MfilZVENTOR/W i M0 Art).

UNITED STAT S PATENT OFFICE.

HOWARD sTiLLMAN, OFSAORAMENT'O, OALIFQltNlA;

APPARATUS F R-PURIFYINIG WATER.

SPEGIFICATIONforming part of Letters Patent No..656,331, dated August 21, 1900.

Application filed llllarch 28,1900.

To all whom it may, concern; I A

Be it known that I, HOWARD STILLMAN, of Sacramento, in the county of Sacramento and State of California, have'invented a certain new and useful Improvement in Automatic Water-Treating Apparatus, of which im prove ment the followingis a specification.

My present invention relates to apparatus for treating water with chemicals for the purpose of clearing it of'incrustating matter and for separating or settling the treated water and isan improvement upon that forwhich Letters Patent of the United States, No.

595,793, were granted and issued to me under date of December 21, 1897.

The ob'ects of my invention are to effect a simplification and economization of the apparatus, to render its operation automatic, and

to attain a thorough mixture of. the contents of the circulating-tank and the prevention of the deposit of precipitated matter therein.

The improvement is hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a view in elevation of a water-treating ape paratus, illustrating an application of my in; vention; Fig. 2, a plan or top view of the same; Fig. 3, a Vertical central section, an an .enlarged scale, through the mixing-vat, chemical-tank, and motor; Fig. 4, a similar section through the circulating-tank, Fig. 5, a hori zontal section through the same at the line a, a of Fig. 4; Fig. 6, a Vertical central section through the feed-regulator; Fig. 7, a horizontal section through. the same at the line b b of Fig. 6, and Fig. -8 a' horizontal section through the motor.

In the practice of my ,inventionl provide, as in myLetters Patent No. 595,793 aforesaid, a supply-main 1, through which the water to be treated is forced under hydraulic pressure obtained either from a pumping-station or a gravity-supply to a circulating-tank 22, and

of suit-able chemicals and to delivera solue Serial No. 10,476, (No model.)

- :tion thereofto a chemical-tank 3, substantially similar to the linetank set forth in Letters Patent No. 595,793 aforesaid. The chemical-tank is closed by tight heads 6 and provided with a filling-pipe 7, which may becontrolled by a cock, and having at its upperor receiving end a funnel 9, protected by a strainer 10. A supply-pipe 3, controlled by a cock 36, leads from the mixing-tank 3 to a point above the funnel 9. A glass gage-tube 15, having an upper bleedercock 16 and a lower drain-cock 17, is connected 'to the outside of the chemicaLtank, and it may also be provided with a suitable pressure-gage. An air-supply pipe 11, in which is fitted apressure-regulator 14, leads from an air-reservoir 27 or other source of compressed air to the chemicaltank for thepurpose of effecting the discharge of the solution therefrom to the water-supply main.

The chemical-tank3is, as in Letters Patent No. 595,793, provided with means for agitating and mixing its contents, the same being preferably in the form of a stirrer consisting of a vertical shaft 19, which passes 'through a stuffing-box20 in the head of the tank and carries a series of stirring-blades. {Under my present invention the head of water in the supply-main is utilized to rotate the stirrer, as well as to actuate an automatic feed-regulator by which limited quantities of the solution of chemicals are delivered at brief intervals from the chemical-tank to the water in the main. To this end a motor 28 in the form of a water-wheel of the ordinary hurdy-gurdy type is fixed upon a shaft 129, which is mounted in bearings in a casing 30, having lateral nozzles or passages 31,

passes on to the circulating and settling tanks. .a'stuffing-box in the casing 30'and carries on The motor shaft 29 passes through its upper end a sprocket-wheel 32, which through a chain .belt 33, rotates a larger sprocket wheel 34, fixed on the stirrer-shaft 19. A regulated supply of chemical solution is delivered to the current of water flowing through the supply-main by a suitable automatic feedregulator which in the instance exemplified is in the form of a hollow cylindrical valve 38, fixed upon a spindle 37 and provided with narrow peripheral ports or openings 39. The regulator is fitted to turn freely in the casing 40, in which its spindle 37 is journaled and which is provided with a proper stuffing-box for said spindle and is preferably fixed to the top of the motor-casing 30. A pipe 41 leads from the chemicaltank 3 to a nozzle or passage on one side of the casing 40, which nozzle communicates'by a narrow port or slot 42 with the space-or chamber in which the regulator 38 rotates, and a pipe 43 is connected to a nozzle on the opposite side of the casing, which communicates with the regulator-chamber by a narrow port or slot 44. The opposite end of the pipe 43 is connected with the supply-main 1. A spur-pinion 35, fixed upon the motor-shaft 29, engages a corresponding gear 36 on the regulator-spindle 37 and imparts rotation thereto and to the connected feed-regulator. The ports 39 of the regulator register in its revolutions with the ports 42 44 of the casing-nozzles, and at each revolution a limited quantity of chemical solution is discharged from the chemical-tank 3 into the water-supply main, the discharging impulses being due to the overbalancing air-pressure in the chemical-tank derived from the air-reservoir 27 through the air-supply pipe 11.

The specific form of automatic feed-regulator above described is "not an essential of my invention, as a corresponding automatic regulation of the supply of chemical solution may be effected by other mechanism actuated by the head of water in the supply-main. Thus, for example, a small feed-pump of the ordinary plunger construction may be substituted, said pump being actuated by an eccentric fixed upon the motor-shaft 29 and having a suction-pipe connected to the chemical-tank 3 and a deliverypipe leading into the supply-main 1. In such case the air-supply to the chemical-tank, which might not in some locations be readily obtainable, would be dispensed with, as the chemical solution would be injected in regulated quantities by the forcing action of the pump, which for the purposes of my invention would constitute a mechanical equivalent for the rotary valvular regulator which is herein described and shown. 7

After being properly supplied with solution from the chemical-tank 3 the water in the supply main 1 is delivered into and passed through a circulating-tank 22, which is preferably of cylindrical form, closed at its ends by tight heads 23 and strengthened by longitudinal brace or braces 24. The'construction herein set forth presents the advantages of being of simpler and less eXpensive construction than that of Patent No.

595,793 aforesaid and of being more readily cleansed and free from objection as to deposit of solid matter. The circulating-tank is divided by transverse partitions 25, Which extend entirely across it, into a plurality of separate chambers or compartments, communication between which is afforded by short Vertical pipes fixed in the partitions and provided with horizontal or downwardlyinclined elbows or nozzles 45. As shown in Figs. 4 and 5, the nozzles of each partition are turned in opposite directions, so as to impart a rotary movement to the water as discharged into the several compartments, and they are relatively reversed on alternate partitions, so that the direction of movement of the water is reversed in alternate compartments. This reversal of the movement of the water substantially promotes the thorough mixture of the chemical solution therewith and also prevents the deposit of precipitated matter, allowing the same to pass on and assist in settling the treated water. After passing through the circulating-tank 22 the treated water is discharged through a delivery-main into a settling or storage tank 26, which may be of any suitable and preferred. construction and from which it is withdrawn for use from time to time as desired. i

The apparatus herein set forth has been applied in practical service in a number of instances and has been found to satisfactorily comply with the conditions and attain the results under and for which it was devised.

I claim as my invention and desire to secure by Letters Patent-- 1. In an apparatus for the treatment of water, the combination of a motor-casing interposed in the water-main, a motor therein, a chemical-tank, a connection between said tank and the motor-casing, and a valve in said connection operatively connected to the motor.

2. In an apparatus for the treatment of water, the combination of a motor-casing interposed in the water-main,a motor therein, a chemical-tank, a connection between said tank and the motor-casing, a rotary valve alternately opening and closing said connection, and operative means between the motor and said valve.

3. In an apparatus for the treatment of water, the combination of a water-main, a chemical-tank, a connection between said main and tank, a compressed-air reservoir communicating with said tank to subject the contentsthereof to pressure, and means controlled by the water-current in said main for alternately opening and closing said connection.

4. In an apparatus for the treatment of water, the combination of a water-supply main, a chemical-tank, a stirrer fitted to 1'0 tate in said tank, an automatic feed-regula= tor controlling communication between the chemical-tank and water-supply main, a motor impelled by the current of water in the supply-main, and operative connections between the motor-shaft and the stirrer and feed-regulator respectively.

5. In an apparatus for the treatment of water, the combination of a water-supply main, a chemical-tank, a stirrer fitted to retate in said tank, an automatic feed-regulator controlling communication between the chemical-tank and water-supply main, a motor-case havinglateral passages each communicating with a section of the supply-main, an impact water-motor fixed on a shaft journaled in said casing, and operative connections between the motor-shaft and the stirrer and feed-regulator respectively.

6. In an apparatus for the treatment of Witnesses:

S. LUKE HOWE, CHAS. M. BECKWITH.

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