US2221273A

US2221273A - Chemical proportioner

Info

Publication number: US2221273A
Authority: US
Inventors: Charles M Strasburger
Original assignee: Individual
Current assignee: Individual
Priority date: 1938-10-18
Filing date: 1938-10-18
Publication date: 1940-11-12
Anticipated expiration: 1957-11-12

Description

Nov. '12, 1940. Q TRA BU G R 2,221,273

CHEMICAL PROPORTIONER Fi'led Oct. 18, 1938 Patented Nov. 12, 1940 UNITED STATES PATENT'H- OFFICE Charles M. Strasburger, Baltimore, Md.

Application October 18, 1938, Serial No. 235,645

13 Claims.

The present invention relates to proportioning apparatus suitable for many purposes and admirably adapted to the purification of water or industrial wastes in the prevention of stream ing movement of the buckets actuating pumps,

dippers orvalves to feed a predetermined proportion of one or more chemical reagents for neutralization of the otherwise harmful ingredients of the discharged composition.

These prior art devices have been expensive and complicated in construction involving many parts, or they have been uncertain in action to the extent that there has been no assurance that the desired proportions of waste and reagent would be delivered and intermixed.

By the present invention it is proposed to overcome the faults and disadvantages inherent to the known constructions by providing a proportioning apparatus comprising a plurality of discharge outlets cooperating with containers pivoted to swing to raised positions to receive discharge from suitable outlets and to swing to lowered positions to dump their contents forintermixture, at least one of the outletsbeing provided with a normally closed valve which is actu-, ated by one of the containers when it' assumes its raised position, to deliver the required amount of chemical reagent for admixturewith the principal discharge to be treated. A'counterweight is provided to swing with the containers so as to hold them in their raised positions until they have received'a predetermined amountpf discharge, whereupon the weight of the containers together with their contents will over-f come the effect of the counterweight and swing to their lowered positions to dump their contents.

In the preferred form of the invention, as one discharge container swings to its lowered positi'on to dump its contents, another similar container pivoted therewith willswing to a raised position, aided by the counterweight after the latter passes its dead-center position, the second container now receiving the discharge.

Each container provided for the reception of discharge is preferably provided with, a receptacle or container intended for the reception of a predetermined quantity of chemical reagent during the time that the receptacle is in its raised position. The delivery to the receptacle. is accomplished by providing a reagent supply outlet for each such receptacle, for dispensing thereto a predetermined amount of reagent upon each oscillation or swinging movement. The reagent supply outlets are preferably provided with valves and gasketed filler heads which enter into sealing relationship with the receptacles in their raised positions so that upon opening of the valveby contact with the receptacle, a predetermined amount of reagent will enter the receptacle and due to the presence of the gasket or other seal, there will be no leakage. Upon withdrawal of the receptacle from its raised position, a spring pressed valve closes the supply outlet until the next operation.

In the event that more than one chemical reagent is to be added to the discharge, the pres ent invention contemplates the provision of a plurality of sources of such reagents with a corresponding number of receptacles carried by each container. The capacities of the receptacles themselves are preferably adjustable in order that the proportions may be varied. Likewise for adjusting proportions, the position of the counterweight with respect to the containers may be varied along a lever arm provided therefor.

The manner in which these various objects are realized will be made clearer by reference to the following description of the attached drawing wherein:

Fig. 1 is a somewhat diagrammatic elevation partly in section of the apparatus;

"Fig. 2 is an elevation partly in section taken at right angles to the apparatus of Fig. l;

Fig. 3 is a sectional elevation of a detail.

A discharge outlet l0 conveying liquid to be purified, is located above a mixing tank l2 adapted to receive the discharge together with a purifying reagent or reagents in predetermined proportions for intermixture prior to final disposal through a conduit l3 to a sewer or other waste channel. A supporting framework I4 comprises a pair of risers [6 which may serve as journals to pivotally receive the ends of a shaft l8. A pair of collars or bosses 20 are mounted on the shaft in spaced relationship, each collar or boss having three radially extending arms projecting therefrom. Two of the arms 22 of each collar serve to support theends of a pair of containers 24 adapted to receive discharge from the outlet Ill. The third arm 26 carried by each collar, serves as a lever arm for a counterweight 28 which may be adjusted thereon and fastened by means of a set screw 30. Optionally, the shaft I8 may be rigidly held by the risers l6 and the collars 26 may be loosely fitted on the shaft for rotation thereabout. In any event, suitable bearings may be provided between the rotating parts.

Each of the containers 24 is served by a flume 32, the fiumes converging from their respective containers to intersect in a plane bisecting the angle defined by the arms 22 supporting the containers. As shown in Fig. 1 of the drawing, the angle defined by the containers, or by their lever arms may be As also noted in Fig. l, with the pivoted construction in its dead-center position, the intersection of the fiumes occurs in line with the mouth of the discharge outlet In,

so that in normal operation, the discharge will enter one or the other of the containers.

Each of the containers 2 5 carries one or more receptacles or containers M for the reception of one or more reagents to be admixed with the discharge from the outlet N]. The receptacles 34- derive their supply of reagent from reagent supply or discharge outlets 36, suitably supported by a horizontal structure 38 forming a portion of the framework. The upper ends of the reagent supply outlets are connected to suitable supply tanks 40 which may contain identical or different reagents depending upon the requirements of a particular installation. The supply lines may beprovided with suitable valves 42 at convenient points in the lines. The lower ends of the supply outlets are provided with valved filler heads, A l for cooperation with the receptacles 34 when the latter are in their raised position.

The details of one such receptacle and filler head are shown by way of example in Fig. 3 of the drawing. The lower end of the reagent supply outlet has rigidly attached thereto an inverted cup-like member d6 which is open at its lower end. Centrally suspended from the base of this member, a spider 38 is provided for supporting a relatively fixed valve 56. Surrounding the cup-like member, a sliclable housing 52 is provided, open at its upper end to loosely receive the outlet line 36. This housing is normally urged downwardly by a spring 54 bearing against the bottom of the cup-like member, tending to bring a valve seat 56 formed at the lower end of the housing into contact with the valve to close the outlet. A separable cap 58 suitably attached to the housing maintains the parts in assembled relationship. A gasket 60 is provided on the lower surface of the housing 52 for registration with thelip of a receptacle 34. In operative position as shown in Fig. 3, it will be evident that reagent supply from the outlet 36 will pass through the spider and check valve into the receptacle 34 and fill the same, but due to the sealing relationship made possible by the gasket, the receptacle will not overflow and the reagent will not be wasted or supplied in quantities greater than desired.

In order to adjust the capacity of the receptacle 34, it may be provided with a threaded opening at its lower end for the reception of a threaded disk 62 having a shank 64 by which it may be turned to raise or lower it with respect to the receptacle and thus alter its volume.

In operation, the valves :12 will be opened and there will be a flow of discharge liquid from the outlet Ill. The positon of the counterweights 28 will be adjusted to the desired points by means of the set screws 30 and the capacity of the receptacles 34 will be set to meet the requirements of the particular situation. The containers will then be moved to an operative position as depicted in broken lines in Fig. 1 of the drawing, whereupon discharge from the outlet It will enter the right hand flume 32 discharging into the right hand container 24. time, the counterweight or counterweights 28 will hold the right hand receptacle 34 in contact With its filling head 44, charging the same to its adjusted capacity. As soon as the weight of the containers and their contents overcomes the counterweight, the pivoted assembly will swing clockwise to move the left hand container and receptacle to a horizontal position to receive their supply of discharge and reagent. As the right hand receptacle moves downward, its contents and that of its receptacle 38 will be dumped into the mixing tank [2, and after sufficient intermixture therein to complete the neutralization or other desired reaction, the products will be disposed of in the desired manner.

Whereas only one embodiment of the present invention has been disclosed in the accompanying description and drawing, modifications will suggest themselves to those skilled in the art and such modifications as come within the terms of the appended claims are contemplated.

I claim:

1. Proportioning apparatus comprising a receptacle for containing treating material, a plurality of discharge conduits providing outlets one of which connects with said receptacle, a plurality of containers pivoted to swing to raised positions to receive discharge simultaneously from said outlets and to swing to lowered positions when charged to dump their contents for intermixture, one of said outlets containing a normally closed valve and one of said containers in its raised position bearing against said valve to open the same.

2. Proportioning apparatus comprising a receptacle for containing treating material, a plurality of discharge conduits providing outlets one of which connects with said receptacle, a plurality of containers pivoted to swing to raised positions to receive discharge simultaneously from said outlets and to swing to lowered positions when charged to dump their contents for intermixture, a counterweight cooperating with said containers to maintain them in raised positions until their combined weight exceeds that of the counterweight, one of said outlets containing a normally closed valve and one of said containers in its raised position bearing againstsaid valve to open the same.

3. Proportioning apparatus comprising a receptacle for containing treating material, a plurality of discharge conduits providing outlets one of which connects with said receptacle, a plurality of containers pivoted to swing to raised positions to receive discharge simultaneously from said outlets and to swing to lowered positions when charged to dump their contents for intermixture, one of said outlets containing a normally closed valve and having a gasket at its mouth, and one of said containers in its raised position contacting said gasket to form a seal and bearing against said valve to open the same.

4. Proportioning apparatus comprising a receptacle for containing treating material, a plurality of discharge conduits providing outlets one of which connects with said receptacle, containers pivoted to swing to raised positions to receive discharge from said outlets and to swing to lowered positions when charged to dump their con- At the same tents for intermixtureone of said outlets con,-

taining a normally closed valve, one of said conceptacle for containing treating material, a mixing tank, a plurality of discharge conduits providing outlets one of which connects with said receptacle, a, pluralityof containers pivoted to swing to raised positions to receive discharge simultaneously from said outlets respectively and to swing to lowered positions when charged to dump their contents intosaid tankfor intermixture, one of said outlets containing a normally closed check valve and one of said containers in its raised position bearing against said valve in sealing relationship to open the same and receive discharge therefrom.

6. Proportioning apparatus comprising a receptacle for containing treating material, a. plurality of discharge conduits providing outlets one of which connects with said receptacle, containers pivoted to swing to raised positions to receive discharge from said outlets and to swing to lowered positions when charged todump their contents for intermixture, a counterweight pivoted with said containers to move them to their raised positions, one of said outlets containing a normally closed valve and one of said containers in its raised position bearing in sealing relationship against said valve to hold it open until the weight of the discharge in said containers overcomes said counterweight.

'7. Proportioning apparatus comprising a receptacle for containing treating material, a plurality of discharge conduits providing outlets one of which connects with said receptacle, a plurality of containers pivoted to swing to raised positions to receive discharge simultaneously from said outlets and to swing to lowered positions when charged to dump their contents for intermixture,

an adjustable counterweight pivoted for movement with said containers to move them to their raised positions, one of said outlets containing a normally closed valve and one of said containers in its raised position bearing against said valve to open the same.

8. Proportioning apparatus comprising a waste discharge outlet and valved reagent supply outlets, a pair of angularly disposed containers pivoted to swing alternately to raised positions to receive discharge from said discharge outlet and to lowered positions when charged to dump their contents, a counterweight symmetrically mounted with respect to said containers and pivoted therewith, a reagent receptacle carried by each of said containers for cooperation with said supply outlets respectively, said receptacles in their raised positions actuating the respective valved supply outlets and in lowered positions dumping their contents for intermixture with said waste discharge.

9. Proportioning apparatus comprising a waste discharge outlet and valve reagent supply outlets, a pair of angularly disposed containers pivoted to swing alternately to raised positions to receive discharge from said discharge outlet and to lowered positions when charged to dump their contents, a counterweight symmetrically mounted with respect to said containers and pivoted therewith, a reagent receptacle carried by each of said containers for cooperation with said supply outlets respectively, said receptacles in their raised positions entering into sealing relationship with the-respective supply outlets and actuating their valves and in lowered positions dumping their contents. forintermixture with said waste discharge. y

10. Proportioning apparatus comprising ;a waste discharge outlet and reagent supply outlets, each of said supply outlets containing a check valve, a pair of angularly disposed containers pivoted to swing alternately to raised positions. to receive discharge from said discharge outlet and to lowered positions when charged to dump their contents, a counterweight symmetrically mounted with respect to said containers and pivoted therewith, a reagent receptacle carried by each of said containers for cooperation with said supply outlets respectively, said receptacles in their raised positions opening the check valves of the respective supply outlets and receiving a predetermined quantity of reagent and in lowered positions dumping their contents for intermixture with said waste discharge.

ll. Proportioning apparatus comprising a mixing tank, a framework, a pair of angularly disposed containers pivoted for oscillation in said framework above said tank, each of said containers having a fiume for feeding discharge thereto, said fiumes converging from the containers to intersect in a plane bisecting the angle defined by the containers, a counterweight symmetrically mounted with respect to said containers and pivoted therewith, a discharge conduit providing an outlet having a mouth positioned alcove and in line with the dead-center position of said fiumes so as to discharge into one or the other in normal operation, a reagent receptacle carried with each of said containers, a valved reagent supply conduit providing an outlet for each of said receptacles, said receptacles alternately contacting their respective supply outlets to receive a supply of reagent for adrmixture with the discharge, said receptacles and containers being adapted to dump their contents into said mixing tank during their oscillating movement.

12. Proportioning apparatus comprising a mixing tank, a framework, a. pair of angularly disposed containers pivoted for' oscillation in said framework above said tank, each of said containers having a flume for feeding discharge thereto, said flumes converging from the containers to intersect in a plane bisecting the angle defined by the containers, a counterweight symmetrically mounted with respect to said containers and pivoted therewith, a discharge conduit providing an outlet having a mouth positioned above and in line with the dead-center position of said fiumes'so as to discharge into one or the other in normal operation, a reagent receptacle carried with each of said containers, a valved reagent supply conduit providing an outlet for each of said receptacles, said receptacles alternately contacting their respective supply outlets in sealing relationship and actuating said valves to receive a. supply of reagent for admixture with the discharge, said receptacles and containers being adapted to dump their contents into said mixing tank during their oscillating movement.

13. Proportioning apparatus comprising a mixing tank, a framework, 2. pair of angularly disposed containers pivoted for oscillation in said framework above said tank, said containers receiving discharge in their raised positions and dumping it into said tank in their lowered positions, each of said containers having a flume for containers, a valved reagent supply conduit pro viding an outlet for each of said receptacles, said receptacles alternately contacting their respective supply outlets and actuating their valves under the influence of said counterweight to receive a supply of reagent for admixture with the discharge, said receptacles and containers being adapted to dump their contents into said mixing tank during their oscillating movement.

CHAS. M. STRASBURGER. 10