US392323A - Filter - Google Patents

Description

(No Model.) 2 Sheets-Sheefi 1.

E. FRETZ & J. WAESPI.

' FILTER.

No. 392,323. 3 r Patented Nov. 6, 1888.

I I VZVJ/EIVTOR.

ATTORNEY,

2 SheetsSheet 2.

FILTER.

Patented Nov. 6, 1888.

(No Model.)

E. PRETZ 8; J. WAESPI.

l/VVE/VTOR,

Arm/Mir A 4 s Wlwm k. wiw.h S N M WITNESSES UNITED, STATES PATENT Fries.

EMIL FRETZ AND JACOB WAESPI, OF DALLAS, TEXAS.

FILTER.

SPECIFICATION forming part of Letters Patent No. 392,323, dated November 6, 1888.

Application filed May 17, 1888. Serial No. 274,171. (No model.)

To all whom it may concern.-

Be it known that we, EMIL FRETZ and J AOOB WAEsPI,of Dallas,in the county of Dallas and State of Texas, have invented a new and Improved Filter, of which the following is a full, clear, and exact description.

Theinvention relates to filters such as shown and described in Letters Patent No. 373,257, granted under date of November 15, 1887, to Jacob Waespi,Emil Fretz, John Spellman,and John Frey.

The object of the present invention is toprovide a new and improved filter which is simple and durable in construction and easily and conveniently cleaned without disturbing the gravel.

The invention consists of certain parts and details and combinations of the same, as will be fully described hereinafter,'and then pointed out in the claim.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a plan view of the improvement with parts removed. Fig 2 is a sectional side elevation of the same. Fig. 3 is a vertical crosssection of the same on the line as m of Fig. 2, and Fig. 4. is a like view of a modified form of the same. 7

The improved filter A is provided with an inclined receptacle, B, having on its upper end a receiving-chamber,0,into which leads the perforated water-supply pipe D,in a similar manner to that shown in the patent above referred to.

Next to thereceiving-chamber O is arranged v the settling-chamber E, which discharges into the gravel-chamber F, the lower end wall, G, of which is formed of a perforated plate, through which the water passes into the exitbasin H, located at the foot of the receptacle B, and connected with the watermains or suction-pipes of pumping-engines in a similar manner to that described in the patent above referred to.

In the gravel-chamber F are arranged at suitable intervals the transverse wedge-shaped ridges I, on the top of which rest the perforated plates J, made of suitable material, and

supporting the gravel or other filtering material, K, placed on top of the said plates, and extending to nearly the upper edges of the walls of the chamber F. A sediment-chamber, L, is thus formed on the bottom of the chamber F between two succeeding ridges, I. Into each sediment-chamber L leads a pipe,N, either from the side,as showniu Figs. 1, 2,and 3,o r from thetop,as illustrated in Fig. 4. The various pipes,N,are preferably connected with the longitudinallyextending pipe 0, leading to the water-supply pipe D. Each pipe N is provided with a valve, I, so as to connect or disconnect the said respective pipe N with or from the supply-pipe O.

In front of the inner end of each pipe N in the respective sediment-chamber L is held, vertically, a thin plate,Q, secured to avertical rod, R, having its bearing in the bottom of the chamber F and extending above the same, carrying at the upper end a handle, S, for turning the said rod R and plate Q. The latter serves to direct the stream of water entering the pipe N to any part of the sediment chamber L when cleaning the filter, as hereinafter described. The handle S stands, preferably, in line with the plate Q, so that the operator knows the direction of the latter. From each sediment-chamber L, opposite the pipe N, leads a pipe, T, to the outside, which pipe is .provided with a Valve, U.

The operation is as follows: The water to be filtered passes first into the receiving-chamber 0 through the supply-pipes D, and then flows into the settling-chamber E, from which it passes into the gravel-chamberF andthrough the gravel K, to pass finally through the perforated plate G into the exit-basin H. The water in passingthrough thegravel K is deprived by the latter of its impurities, which pass downward through theperforated plates J into the sediment-chamber L and locate principally against the ridges I. The valves P and U re main closed while the filtering is going on. When the operator desires to clean the filter, the gravel K is not disturbed, and the valve in the outlet-pipe of the exit-basin is closed, so that the water fills the receptacle F completely. However, any one of the chambers L may be opened to draw ofi sediment while the operation of the filter is going on. The chambers near the head of the filter must be re lieved of sediment oftener than the others. It is not positively necessary to flood the whole filter,thereby stopping operations. The valve U of the outlet-pipe T is opened on one or more chambers L, so that the accumulated water in the gravel-chamber Ffiows out freely and fast through the said pipes T,thereby earrying with it all impurities and sediment that may have lodged in the gravel K. This operation is performed on each chamber L, beginning at the upper end of the chamber F. Sediment remaining in any of the chambers L is cleaned out by opening the respective valve P of the pipe N, leading to the respect ive chamber L, so that water from the supply-pipe D passes through the pipes O and N into the respective chamber L and washes the sediment to and through the opposite outletpipe T. Every part of the chamber L is reached by the water entering the pipe N by the operator manipulating the rodR and plate Q by turning the handle S so as to direct the stream of water to all parts of the chamber L.

Having thus fully described our invention, we

claim as new and desire to secure by Letters 25 Patent- In a filter, the combination,with a filteringreceptacle provided with a gravel-chamber,of transverse ridges held in the bottom of the said gravel-chamber, perforated plates held on 3 0 top of the said ridges, supporting the gravel and forming sediment-chambers on the bottom of the said gravel-chamber, an outletpipe having a valve and leading from each of the said sediment-chambers, a water-inlet 35 EMIL FRETZ. JACOB XVAESPI.

\Vitnesses:

VICTOR H. HEXTER, \V. M. ED\VARDS.

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