US3196802A - Proportioning pump - Google Patents

Description

July 27, 1965 F. M. MATHENY 3,196,802

PROPORTIONING PUMP Filed May 21, 1963 2 Sheets-Sheet 1 FQI NCiS 2&2. Mnms/vv ZNVENTOR.

July 27, 1965 F. M. MATHENY PROPORTIONINGPUMP 2 Sheets-Sheet 2 Filed May 21, 1965 iien/vc /s M Mn THEN Y INVENTOR ATTOQNEVS United States Patent "ice 3,196,802 PRGPORTIONING PUMP Francis M. Matheny, Lynwood, Calif., assignor to Pipe Linings, line, Wilmington, Calif, a corporation of California Filed May 21, 1963, Ser. No. 282,037 2 Claims. (Cl. 103-218) This invention has to do generally with means for proportioning materials as where two substances to be blended are pumped from separate supply containers, and more particularly with means for pumping two materials from separate sources at various rates of flow and in predetermined proportions irrespective of the rate of flow.

An object of the invention is to provide a novel pumping unit for delivery of fluids from two sources in predetermined proportions but at various rates.

Another object is to provide such a pumping unit wherein the proportions of materials pumped can be adjustably varied.

A further object is to provide a pumping unit embodying positive displacement piston-type pumps which includes novel means for adjusting the length of the stroke of the piston of at least one of the pumps.

Another object of the invention is to provide an adjustable crankpin assembly or mounting.

Still another object is to provide a novel pump unit mounted on a base wherein the pump unit can be raised and lowered to accommodate the removal and replacement of supply containers.

These and other objects will be apparent from the drawings and the following description. Referring to the drawings:

FIG. 1 is an elevational view of apparatus embodying the invention;

FIG. 2 is an elevational view of the apparatus of FIG. 1 taken as viewed from the line 2-2 on FIG. 1;

FIG. 3 is an enlarged elevational view on line 3-3 of PEG. 1;

FIG. 4- is a sectional view on line 4-4 of FIG. 3; and

FIG. 5 is a sectional view on line 5-5 of FIG. 4.

More particularly describing the invention, numeral 11 generally designates a base which is shown to be in the form of a metal plate although it might be of other material. This supports anupright fluid jack 12 which comprises acylinder 13 mounted on the plate and a piston (not shown) having a projectingpiston rod 14. Mounted on the rod is a frame designated generally by 16. The latter includes acentral plate 17 which is apertured to receive the threaded end of thepiston rod 14. The frame is secured by anut 13.

Frame 16 includes a pair ofupright wing plates 20 which extend betweenplate 17 and abottom plate 21. The latter carries partially roundsections 22 at each side in which are mounted standard, positive displacement, piston-type pumps 24. Apiston rod 25 is shown extending upwardly from the piston (not shown) of each pump in thecylinder 26.

Each pump is provided with a dependinginlet tube 28, and this is adapted to extend into acontainer 29 shown resting upon the base 11. Thepump outlets 30 are connected bypipes 31 to asuitable discharge hose 32 which may lead to a blender or other desired point.

With the construction thus far outlined it will be apparent that when thefluid jack 12 is contracted, as shown in the FIGS. 1 and 2, thepump intake tubes 28 reach to the bottom of thecontainers 29. In order to remove and replace the containers it is only necessary to actuate the jack by pressure fluid from any suitable source to expand f atented July 27, 1965 it, thereby raising theframe 16 and pumps 24 to a level such that the lower ends of the intake tubes are above the containers.

Upper plates 34 forming part of theframe 16support pillow blocks 35 which serve to journal ashaft 36. The shaft is driven by amotor 37 mounted on anupright plate 38 of the frame through agear reduction unit 40 supported onplate 17.

At each end of the shaft 36 I provide a crankpin assembly or unit designated generally bynumeral 42. In general this comprises abody 43 which is mounted on the end of the shaft and acrankpin 44 projecting therefrom. The body may be secured to the shaft by setscrew 45 in ahub 43 of the body. A connectingrod 46 is pivotally mounted on the crankpin at one end and pivotally connected to aclevis joint 47 on the end of thepiston rod 25.

It is a feature of the invention that the throw of the crankpin can be adjusted to thereby adjust the stroke of the associated pump. Thus the crankpin 4-4 is mounted integral with anut 50 which is slideably received in a dovetail channel orslot 51 in thebody 43. The nut in turn receives ascrew 52 which is journaled inbushings 53 and 54 fixed in theslot 51. This slot or channel itself extends radially or diametrically of the body with respect to the axis of rotation thereof when on the shaft.

It will be apparent that by turningscrew 52, theend portion 56 of which is shaped to receive a tool, the position and hence the throw of the crankpin 44- can be adjusted. This in turn regulates the stroke of the associated piston. Consequently, regardless of the speed of the shaft and the rate of flow of the pumps, the proportional amount of the total liquid delivered by the pumps will remain constant at the selected ratio.

Although I have shown and described preferred forms of my invention, I contemplate that various changes and modifications can be made therein without departing from the invention, the scope of which is indicated by the following claims.

I claim:

1. A proportioning pump unit, comprising a base plate adapted to provide a supporting surface for a pair of supply containers, an upright fluid jack mounted on said plate, a frame carried on said jack and extending laterally thereof to provide two end portions, a pump mounted on each end portion of said frame and having a depending inlet pipe to extend into a container, said jack being expansible to raise said frame and the pumps and permit removal and replacement of the containers, a shaft journaled in the frame above said pumps, means operatively connecting each pump to the shaft, a motor carried by the frame on a portion thereof above said shaft, and a driving connection between the motor and the shaft.

2. The proportioning pump unit set forth in claim 1 in which said frame is detachably mounted on said jack.

References Cited by the Examiner UNITED STATES PATENTS 2,105,990 1/38 Schultz et al. 222-325 2,105,991 1/38 Schultz et al. 103-218 2,236,095 3/41 Ginter 103-218 2,627,453 2/53 Sheen 103-6 2,639,062 5/53 Fox 103-218 2,807,213 9/57 Rosen 103-38 2,925,780 2/60 Tear 103-11 2,972,894 2/61 Bennett 74-40 3,007,349 11/61 Loeber 74-571 3,116,648 1/ 64 Arenhold 74-600 LAURENCE V. EFNER, Primary Examiner.

Claims (1)

1. A PROPORTIONING PUMP UNIT, COMPRISING A BASE PLATE ADAPTED TO PROVIDE A SUPPORTING SURFACE FOR A PAIR OF SUPPLY CONTAINERS, AN UPRIGHT FLUID JACK MOUNTED ON SAID PLATE, A FRAME CARRIED ON SAID JACK AND EXTENDING LATERALLY THEREOF TO PROVIDE TWO END PORTIONS, A PUMP MOUNTED ON EACH END PORTION OF SAID FRAME AND HAVING A DEPENDING INLET PIPE TO EXTEND INTO A CONTAINER, SAID JACK BEING EXPANSIBLE TO RAISE SAID FRAME AND THE PUMPS AND PERMIT REMOVAL AND REPLACEMENT OF THE CONTAINERS, A SHAFT JOURNALED IN THE FRAME ABOVE SAID PUMPS, MEANS OPEATIVELY CONNECTING EACH PUMP TO THE SHAFT, A MOTOR CARRIED BY THE FRAME ON A PORTION THEREOF ABOVE SAID SHAFT, AN A DRIVING CONNECTION BETWEEN THE MOTOR AND THE SHAFT.

Images