USRE10963E - jewell - Google Patents

Description

O. H. JEWELL.

; Assignor to the JEwEu. Plum WATER COIPAIY.

FEED WATER PURIPIER.

No. 10 ,963. Reissued Oct. 16, 1888.

UNITED STATES OMAR Il. JEWELL, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE JIMVELL PURE \VATER COMPANY, OF SAME PLACE.

FEED-WATER PURlFl ER.

SPECIFICATION forming part of Reissued Lettera Patent No, 10,96 3, dated October 16, 1888.

Original No. 377,386, dated February 7, 1888.

Application for reissue filed April 25. 1888. Serial No 271,847.

To all whom.- it may concern.-

Be it known that l, OMAR H. JEWELL, a citizen of the United States of America, residing at Chicago, in the county of Cook and State of 5 Illinois, have invented certain'new'and useful.

Improvements in Food -'Watcr Purifiers, of which the following isa specification, reference being had therein to the accompanying drawings. 7

This invention relates to devices for purifying feed-Water for steam-boilers, to prevent sediments and incrnstations in such boilers; and it has for its object to provide an apparatus that by filtering and by the automatic 5 admixture of chemicals will clarify the most impure water am also in devices in connection therewith for washing outsuch apparatus from time to time for removing the impurities collect-ed therein; and with the above objects 20. in view my invention consistsof the novel devices and combinations of devices hereinafter described and specifically claimed.

. In the accompanying drawiugs,Figure 1 represents a sectional elevation of the entire apparatus, and Fig. 2 a section of the bottom of thc'filtcring-tank on an enlarged scale.

Corresponding letters in the several figures of the drawings designate like parts.

A denotes the tank, being a cylindrical vesscl made ofshcet metal. ielo w the top of this vessel is secured a. box, B, having a'perforated bottom and communicating through a nozzle, b, with a globe, 0, having to its top a safetyvalve, 0, of any usual construction. In its hottom the tankA communicates, through ashort nozzle, d, with a cross-coupling, I), and above this nozzle d is secured, upon the bottom of said tank, astrniner, E, by circumferential verticnl flanges, that provide a sufficient chamber 40 below such strainer for water filtering through to collect therein before flowing otf through nozzle d. On top of this strainer is placed a disk, I havingperforations muchfiner than those in strainer E, and this disk F is secured by a bolt, f, passed through a central hole of the disk and tapped into the central portion of strainer-plate It, and this bolt fis sullicicntl y long for disk F to move up and down to be guided thereon. The tank A is to be filled with line gravel and sand for the water to filter through.

G is the feedpump, and g the suotionpipe thereof. This pump, through pipes h t, communicates with globe C, and, through the pipes hj,with the cross-coupling D, whence a pipe, k, leads to the boilers, or to a tank from which the boilers are fed by means of an injector. Cross'coupling D also communicates, through a globe-valve, L, with a pipe, I, that leads outdoors into the sewer or river." A globevalve, 6 I, is interposed in pipe 1 another globe-valve,

J, is interposed in pipe j, and a third globevalve, K, is interposed. in pipe 7;. A pipe, M, leads from globe C to a T-coupling, m, inter posed ,inpipe'l below globe-valve L, and this 6 pipe M is provided with a globevalvc, N.

For filtering water through tank A to be used as feed-water for the boilers, the valves J, L, and N are closed and the valves I and K are opened, when the water will be forced through pipes h i and through strainer B into the top of tank A, and will pass through the sand and gravel therein, where it will be separated from all impurities, and the clear-water will then pass through strainers F and E and through pipe is into the boilers.

For washing out the tank A, to remove the impurities collected therein from filtering, I, close valves I, K, and L and open valvesJ and N, when the water from the pump will be forced through pipes h j, thence upward thro gh strainers l5 1*, through the gravel and sane in thetank and through the strainer B, y and will thence be discharged through pipes M and l, and while the course of the water is thus reversed the perforated disk I will be lifted by the force thereof to allow a more free passage of the water and to remove any slimy impurities that might have gathered between suchplates, and at the same time with passing go through the sand and gravel the water will whirl up the same, carrying with it all i mpurities collected therein. After the bank has thus been washed out, by reversing the flow of the water passed through it, I again. close valves 5 N J and open valves I L, for discharging through pipe 1 into the sewer the first water filtered through the tank agaiuin a downward directionfor carrying off suchimpurit-ics that may have been retained in the bottom of the 6 tank from the water forced upward there through for washing out, until the filtered,

water shows to be clear, when I'close L and open valve K again. The perforated box B may also be filled with gravel for retaining coarser matter that otherwise might clog up 5 the perforations of such box.

At one side of the pump G is a hermetic tank, 0, inside of which is provided a funnel, P, having a conical perforated bottom and open at the top. Asmall pipe, p, leading from the pipe h into the vessel 0 provides for communication between the vessel and the pipe, and a small sprinkler on the end of the pc is arranged above the funnel-pipe P, thereby providing for a discharge into the top of the funnel. The pipep is provided with a valve or stop-cock, 1-, between the tank and the pipe h. A small pipe, q, leading from the suction-pipeg of the pump into and through the bottom of the vessel 0, establishes com muzo nicatiou between this'vessel and the suctionpipe olthe pump. This pipe 9 is also provided :with a valve or stop-cock, s, between the tank and the suction-pipe.

The tank or vessel 0 is for the reception of alum or any other chemical which it is de sired to mix with the water for the purpose of coagulating impurities or foreign substances contained therein, and the pipes connecting this vessel with the suction and discharge pipes of the pump are for the purpose of feeding the chemical constantly into the water before it into the pump and keeping up a constant supply of water to the passage fon dissolving the chemical. Through a suitable opening in the tank or vessel 0 the funnel P is filled with alum or other chemical which it is desired to use, and the valves 1' ands are opened. Then if the pump is in action, ateach stroke the pressure upon the discharge-pipe will force the same water through the pipe p into the vessel 0, where it is discharged upon the alum or other chemical and dissolves it. The valve 8 being open, the chemical-tank is also in communication with the suction-pipe of the pump,and,obviously, by the action of the latter a certain quantity of the solution will be drawn into the suction-pipe and through this pipe into the pump with each stroke of the latter, and by the agitation of the water in 50 its e through the pump thecheniical solution will become thoroughly mixed with the water forced to the filtering-tank.

The supply of water to the tank through the pipep and the supply ofch'emical solution to ,55 the suctibn-pipe through the pipe q are regulated by means of the valves 1- and a, and it is obvious that the action of the apparatus is automatic in keeping up the supply of chemical matter to the water in such quantity as may 60 be desired.

Man or hand holes are provided in tank A for filling'the same with gravel and sand and I for emptying when necessary.

v With an apparatus as the above described 65 the most impure river-water can be clarified to be applicable as fced-water l'or steam-boilers and other purposes with the very best results.

\Vhat I'claim is- 1. In an apparatus for the purpose described, the tank A, provided with strainers B and E,

the strainer B communicating with the pump through pipes h and i, and the strainer E with the boilers through pipe 7;, substantially as set forth.

2. In an apparatus forthe pu rposc described, the tank A,with strainers B and I'Lthe strainer Bcommunicating with thepump through pipes h i and with the sewer through pipes M Z, and strainer E communicating with the pump through pipes h j and with the boilers through pipe k, such pipes being provided with suitable valves i'or regulating andreversing the circulation of the water through such tank, substantially as set forth.

3. In an apparatus for the purpose described, the tank A, with strainers B and E, strainer B communicatingwith the pump through pipes 71 2', provided with valve 1, and with the sewer through pipes M Z, provided with valves L N, and strainer E communicating with the pump through pipes h j, provided with valve J and with the boilers through pipe It, provided with valve K, all substantially as set forth, for the purpose specified.

4. In an apparatus for the purpose described, the combination, with the filtering-tank, of perforated plate E in the bottom thereof, and perforated disk- F on top of plate hi, vertically movable and guided on boltf. substantially as and for the purposes specified.

5. The combination, with the filtering-tank and the force-pump feeding the same, of chamber O,with perforated funnel P, a pipe, p,leading from the dischargepipe of the pump into funnel P, and a pipe, q, leading from the bottom of chamber 0 into the suction-pipe of the pump, substantially as and for the purposes specified.

6. In a filtering apparatus, afiltering-tank: in combination with a pump and a vessel for chemicals communicating with the suctionpipe of the pump, substantially as and for the purposes specified.

7. In a filtering apparatus, a filtering-tank, in combination with a pump and a vessel for chemicals communicating with both the inlet r to and the outlet of the pump, substantially as and for the purposes specified.

8. In a filtering apparatus, a filtering-tank, in combination with a punip,a vesselfor chemicals, a pipe connecting said chemical-receptacle with the suction-pipe of the pump, and a second pipe connecting said vessel with the discharge-pipe of the pump, substantially as and'for the purposes specified.

OMAR H. JEWELL. Witnesses:

CARRIE FEIGEL, A. M. BEs'r.

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