US1013435A - Water-filter. - Google Patents

Description

Witwe/.mea

D. M.A PEAUTZ. WATER FILTER.

APPLICATION FILED JUNE 17, 1909.

2 SHEETS-SHEET 1.

I anz'c// @a tffj,

Patented' J an. 2, 1912.

D. M. PFAUTZ.

WATER FILTER.

APPLICATION FILED JUNE 17, 1909.

Patented J an. 2, 1912.

2 SHEETS-SHEET 2 @TTS PATENT OFF-TCE;

DANIEL M. PFAUTZ, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO WILLIAM H. TIGERJVIAN, 0F PHILADELPHIA, PENNSYLVANIA.

WATER-FILTER.

Specicaton of Letters Patent.

Patented Jan. 2, 1912.

Application filed June 17, 1909. Serial No. 502,770.

To all whom it may concern:

Be it known that l, DANIEL M. PFAUTZ, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in VVater-Filters, of which the following is a specification.

My invention relates to improvements in water filters, the object of the invention being to provide an improved filter, designed primarily for private use, adapted to be connected with the water main from the street, and which will effectually filter the water in its passage from the street main to the spigots in the house, and compel water in transit to pass through two filtering tanks containing preferably coarse sand and pulverized pumice stone respectively, and compel the water to pass upwardly through said filtering materials to thoroughly remove foreign matter from the water.

6A further object is to provide improved constructions of tanks, with improved means for directing the flow of water through said tanks, and which enables the filtering materials in said tanks to be thoroughly washed out if desired.

l/Vith these and other objects in view, the invention consists in certain novel Jfeatures of construction, and combinations and arrangements of parts as will be more fully hereinafter described and pointed out in the claims.

Figure 1, is a view in vertical longitudinal sect-ion, and Fig. 2, is a view in horizontal section on the line 4 4 of Fig. 3.

1 represents a base plate, to which the tank bases 2, 2, are securely bolted. These tank bases have inlet chambers 3, and are separated from the filtering chambers 4 above, by means of perforated plates 5, which latter are positioned between annular flanges 6 at the lower end of the chamber wall 4 and the bases 2, and are securely clamped between said parts by screws or bolts 7. The upper ends of the chamber walls 4l are also provided with annular flanges 8, upon which perforated plates 9 are located, and outlet chambers 10 are lo- `cated over said plates 9. The iianges 8,

plates 9, and chambers 10, are securely held together by means of bolts or screws 11. Each base 2 is provided with an internal integral block 12 located in the inlet chamber 3, and cored through a water passage 13, said blocks being internally screw threaded at the ends of said passages 13.

Both of the tanks, which for convenience of reference, I have given reference char- -acters A and B respectively, are precisely alike in construction, and the hereinafter description of one willfapply alike to both.

The passage 13, in the form of an L, receives in its vertical portion, the screw threaded lower end of a tube 14, which latter projects through central openings in perforated plates 5 and 9, and at its upper end, an internally screw threaded collar 15 is screwed onto the tube 14, and is made with an internal bevel at its upper end, forming a valve seat for a valve 16. This valve 16 is secured upon the lower end of a valve stem 17, having a hand wheel 18 at its upper end above the filtering tank. The screw threaded portion of stem 17 engages internal screw threads in a cap plate 19, the latter secured by bolts or screws 20 over an opening 21 in the top of outlet 4, and when said cap plate is removed, ready access may be had to the inside of the filtering tank. A cap nut 22 is screwed onto a packing cup on the cap plate 19, so as to inclose any suitable form of packing around the valve stem.

23 represents the water supply main, which is provided with a valve 24, and communicates with the inlet chamber 3 of tank A. A pipe 25 connects the outlet end of passage 13 in tank A with the inlet chamber 3 of tank B, and an outlet pipe 26 having a valve 27 therein, communicates with the outlet end of the passage 13 in tank B.

23 represents a drain pipe connected by branch pipes 29 with the inlet chambers 3 of tanks A and B, and provided with valves 30 in said branch pipes. A wash out pipe 31 communicates at one end with main 23, and is provided with a valve 32. This pipe 31 is connected by branch pipes 33 with the outlet chambers l() of tanks A and B, and valves 34 are provided in the said branch pipes 33. a

In the chambers 4 between perforated plates 5 and 9, and around tube 14, filtering material 35 is located. This filtering material may of course vary, one preferable combination being clean sand in the filtering chamber of tank A, and pulverized pumice stone in the filtering chamber of tank B.

The operation is as follows: Normally valves 16 are moved upwardly, so as to open communication with tubes 14. Valves 24, 27 and both valves 16, are open, while valves 32, 34 and 30 are closed. Vater from main 23 enters the inlet chamber 3 of tank A, and passes upwardly through the perforated plates 5 and 9, and through the filtering material in chamber 4, into the outlet chamber 10 of tank A, from which valves 32, 34 and 30 are then opened, andl the water from main 23 will fiow through pipe 31 and branch pipes 33 int-o the outlet chambers 10 of both tanks A and B, and thence downwardly through the filtering materials to thoroughly wash the same, into the inlet chambers 3, and from the latter through the branch pipes 29 to the drain 28..

Various slight changes might be made in the general form and arrangements of parts described without departing from my invention, and hence I donot restrict myself to the precise details set forth, but consider myself at liberty to make such changes and alterations as fairly fall within the spirit and scope of the claims.

I-Iaving thus described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a water lter, an inlet chamber, a filtering chamber and an outlet chamber, each formed of a separate casting and arranged one above the other, a perforated plate arranged between the inlet chamber and the filtering chamber, and a similar plate arranged between the filtering chamber and the outlet chamber, said inlet chamber comprising the base of the filter and consisting of a hollow casting having a block formed integrally therewith within the chamber and provided with an L-shaped passage way, the inner end of said passage way opening through the top of said block at substantially the center of the device and the other end opening through the sidewall of said inlet chamber,said ends being threaded, a pipe extending vertically through said perforated plates and the filtering chamber, and having its lower end threaded into said block in communication with the inner end of said passage way, an outlet pipe eXtending from the outer end of said passage way, and an inlet pipe communicating with said inlet chamber, a valve adapted to close the end of said tube in the outlet chamber, said outlet chamber having an opening in its top of a diameter greater than the diameter of the valve, a cap plate removably secured over said opening and a stem on said valve threaded through said cap qfplate, substantially as described.

2. A water lter comprising a base plate, a plurality of filtering tanks secured on said base plate, each filtering tank comprising a lower base member having an inlet chamber and an outlet passage way therethrough, an upper outlet chamber, and a filtering chamber between the inlet and outlet chambers, a vertical tube connecting the outlet chamber of each tank with the said passage way in its respective base member, said tube extending through the filtering chamber, a valve adapted to close the end of said tube in the outlet chamber, said outlet chamber having an opening in its top of a diameter greater than the diameter of the valve,

a cap plate removably secured over said opening and a stem on said valve threaded through said cap plate, a main communr eating with the inlet chamber of one tank, a valve in said main, a pipe connecting the passage way in the base memberof one tank with the inlet chamber of the neX`t, an outlet pipe communicating with the passage way in the last tank, a valve in said outlet pipe, a washout pipe extending from said main, a valve in said washout pipe, branch pipes connecting the washout pipe with the outlet chambers of the respective tanks, valves in said branch pipes, a drain pipe, branchl pipes connecting said drain pipe with each of said inlet chambers, and valves in said branch pipes, whereby either or all of said chambers may be flushed out when desired, substantially as described.

In testimony whereof vI have signed my name to this specification in the presence of two subscribing witnesses.

DANIEL M. PFAUTZ.

Witnesses:

R. II. KRENKEL, J. A. L. MULHALL.

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

Images