US1563851A - Swimming pool - Google Patents

Description

F. E. HARTMAN SWIMMING POOL Dec. 1, 1925;

Filed April 22, 1922 2 Sheets-Sheet 1 I N vE/vTaR' FEB a1? ArroRNE )2 Dec. 1, 1925.

F, E. HARTMAN SWIMMING POOL Filed April 22. 1.922

2 Sheets-Sheet 2 Patented Dec. 1, 1925.

UNITED STATES PATENT OFFICE.

WATER STERILIZER AND OZONE COMPANY, OF SCOTTDALE, PENNSYLVANIA, A

CORPORATION OF PENSYLVANIA.

SWIMMING POOL.

Application fl led April 22, 1922. Serial No. 558,051.

To all whom it may concern:

Be it known that I, FRANK E. HARTMAN, citizen of the United States, residing at Scottdale, in the county of Westmoreland and State of Pennsylvania, have invented certain new and useful Improvements in Swimming Pools, of which the following is a specification.

This invention relates to an improvement in swimming pools and more particularly to a novel circulating system for maintaining the water in the pool at a maximum degree of purity and also of even temperature throughout. In swimming pools used by a large number of bathers, it is necessary to provide means for maintaining the water at a high standard of purity, and in pools of large capacity it is desirable to reuse the water to obviate a large economic Waste. As the impurities in the pool of water float or rise near the surface and the bathers are in contact with the surface water more frequently than at lower levels, it becomes necessary to insure that the surface water is constantly removed and replaced by purified water which is distributed in the pool in such a manner that all of the water in thepool is kept in circulation, thereby not only insuring the desired standard of purity but also maintaining safe temperature conditions.

The present invention aims to provide a novel apparatus for circulating and purifying the water of the pool in the manner set forth in my copending application Serial No. 556,049, filed April 22, 1922, wherein it'is proposed to supply the fresh water at the bottom of the pool so that the circulation of all the water in the pool is upward- -ly from the bottom and outwardly toward the edges. In that connection the present improvement contemplates an apparatus for positively including all of the water of the pool in a closed circuit without de ending on the water being returned throug 1 the overflow rail as distinguished from my copending application Serial No. 556,050, filed April 22, 1922, thereby adapting the present apparatus to installations where the sump device of my said appl cation Serial No. 556,050 cannot be conveniently used.

A further object of the invention is to provide simple and practical means for maintaining the water in the pool at maximum capacity at all times to insure the free circulation of the water from the pool to and through the filtering, heating and purifying instrumentalities prior to its passage into the pool.

With the above and other objects in view which will more readily appear as the naproved system.

Fig. 2 is a top plan view of .the pool showmg the piping arrangement.

Fig. 3 is a longitudinal sectional view taken on the line 33 of Fig. 2.

v Fig. 4 is a transverse sectional view taken on the line 4-4 of Fig. 3. I

Similar reference characters designate corresponding parts throughout the several figures of the drawings.

In carrying the resent invention into effect, it 1s ropose to equip the pool A with the in uent pipin system B and the efiluent piping system the latter leading to a suitable pumping device D for positively maintaining the circulation of water from the pool to the filter units E, which in turn communicate with a heater F connected by suitable piping F with an ozonizer unit G. From the ozonizing unit, the purified water is conveyed through the pipe H to the influent s stem B.

As Wlll. be observed from the drawings,

the influent piping B is arran ed at the bottom of the 001, while the efiihent piping is arranged a jacent the upper ed e thereof and communicates with the interior of the pool at a point adjacent to and below the overflow trou h T, as will presentlv appear. The path of t 1e water in its passage through the 001 is therefore from the bottom upwar toward the outer edges of the pool,

simply serves to carry to waste the water which is displaced by bathers entering the pool. a

Another novel and distinctive feature of the present improvement (is the novel supply unit Swhich provides for maintainin the water of the pool at the 'predetermine capacity to maintain the effectiveness of the circulating system. When the bathers enter the pool, the water displaced by their presence becomes lost throu h the overflow trough and also considera is water is carried away by the bathers and a certain proportion evaporates. To make up for this loss the supply unit S automatically operates when the level of the pool falls below a certain point to supply the system with additional fresh water at a point in the circuit anterior to the pumping, filtering, heatv 30- ingaand purifying instrumentalities.

eferrmg now more particularly to the details of construction for carrying the invention into effect, it will be observed that the influent piping system B preferably includes a supply pipe 1 surrounding the bottom of the tank and having a lurality of ofiset su ply pipes 2 having disc ar e ports 3 suitab y distributed and located t rough- V out the bottom of the tank. The pipe 1 connects with the piping H from the ozonizer and distributes the heated and purified water to the bottom of the pool.

The efiiuent piping C at the top of the pool preferably consists of a common receivmg pipe- 4 having a plurality of laterall extending receiving pipes 5 which project IOIlzontally through the side walls of the pool to communicate as at 6 with the interior of the pool around the upper side edges thereof and below the mean water level. By distributing the outlets of the efiluent pipmg and the inlets of the influent piping, as shown in the drawings, the pressures are equalled so that more water will not enter at one point than at another.

As W111 be observed from Figure 1, the common discharge pipe 4 of the efiluent i mg C communicates with a pipe 7 whic in turn is connected with a pipe section 8 having therein a check valve 9 and a fresh water supply connection 10 leading from the supply unit S. The said fresh water supply pipe 10 communicates with an automatic valve 11 located in the main sup 1 line 12 which may have therein a suitifiale manually operated cut-off valve 13 if desired.

, of a predetermine In connection with the supply unit S. which includes the pipe 10 communicatinfi with the source of water supply 12, it wi be observed that the valve 11 is of any suitable electro-magnetic type which .is normally closed, but 0 erates at the occurrence.

condition to open the supply line to the ipe 10. As shown in the drawing, the said valve 11 preferably includes a suitable electro-magnet housing 14 having the wiring connections 15 leading to a terminal element 16 arranged within a stand pipe 17 which communicates throu 'h the connection 18 directl with the pool K. Within the pipe 17 asuitable float 16' is provided so that when the water in the pool A drops below the predetermined level established by the inlet orifices of the influent piping O, the said float will close the circuit to the terminals 16 and operate the electro-magnetic valve to ermit water from the supply line 12 to ow into the pipe connection 10.

lo prevent the pressure of the waterm the line 10 from backing up into the pool without oing through the pump device D and the f lltermg, heating and purifying Instrumentalities, the check valve 9, previously referred to, is provided. Obviously, the operation of the pump will draw water through the efliuent system C and through the plpes 7 and 8 as long as the water 1n the 001 A is above the level of the inlets 6 of t e efiluent system but when the water falls below the inlets the float 16 will operate the valve 11 to permit fresh water to flow into the pipe 8. As the water supplied through the ipe 12 is usually from city mains under igh pressure, it mi ht make its wa in the pool through the e uent iping i it were not for the checkvvalve 9. owever, this valve effectually guards against such occurrence and the device is thus insured of positive operation at all times without attention.

From the foregoing it is thought that it will be apparent that the present invention rovides novel means for causing the positlve circulation of water in the pool and effectually provides for replenishin the suppl when the same falls below a prefetermine level.

While it will of course be understood thatvarious changes may be resorted to in carrying the invention into effect, it will of course be understood that the primary and underlying features of the invention, heretofore pointed out, are adhered to.

1. A circulating system for swimmIi-ng pools including in combination, an overflow trough surrounding the pool, an influent piping s stem arranged at the bottom of the pool an communicating therewith, an eflluent piping system arranged near the top of an e uent. piping system communicating the pool and communicating therewith below the trough, and pi ing connections including a pump establis ing communication between said systems. J v

2. A circulating system for swimming pools including in combination, an overflow trough surrounding the pool, an influent pi ing system arranged beneath the pool, an e uent piping s stem communicating with the pool below t 1e trough, connections between said infiuent and effluent piping systems, said connections including filtering, heating and purifying circulating pump an an automatic float controlled valve for maintaining .the level of water in the pool above the inlets for the efliuent system. j

A circulating system for swimming pools. including in combination, an overflow trough surrounding the pool, an infiuent pipin system arranged beneath the pool,

with the pool below the trough, pi ing coniiections between said infiuent an efliuent giping'systems, said connections including lte'ri ng, heating andpurifying instrumentalities, a circulating pump, a valved fresh water supply pipe joining said connections ,between the pump and the efliuentpiping system.

4; A circulating system for swimming pools including an influent pipin'gsystcm arranged beneath the pool, an efiluent piping system communicating with the pool below the mean water level, connections between said mfluent and efiluent piping systems,

i said connections including filtering, heating and purifying instrumentalities, a circulatng pump, .a fresh water supplypipe joining said connections between the pump and the eflluent piping system, and a valve 1n said fresh water supply pipe line ada ted to be automatically controlled by the evel of water in the pool to open and close the instrumentalities, a

said supply line, and a one-way check valve arrange in said iping connections between the point where t e fresh water supply joins therewith and the influent piping system.

5. A circulating system ior swimming pools including an influent piping system arranged at the bottom of the pool and havin a plurality, of discharge outlets distributed in the floor of the pool'to efiect uniform distribution of the water supply to the pool, an efiiuent piliping system conslsting of a common disc arge pipe having a plurality of inlet connections communicatmg with the pool below the mean water level, piping connections for joining said infiuent and eflluent systems, a circulating pump arranged in said piping connections, means for supplying fresh water to said piping connections, and means operated by the level of water in the pool for controlling said last mentionedmeans.

6. A circulating system for swimming pools including in combination, an overflow trough surrounding the pool, an infiuent piping s stem arranged at the bottom of the pool an communicating therewith, an efliuent' piping system arranged at the top of the pool and communicating therewith below the trough, piping connections establishing comvmunication between said systems, a circulat- ,and beingresponsive to the water level within the pool, between the overflow trough and the outlets of the efiiuent system.

In testimony whereof I hereuntoaflix my signature.

\ FRANK E. HARTMAN.

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