US2441259A

US2441259A - Ratio control comprising a chamber for a first liquid passing therethrough and a member therein having a port for feeding a second liquid into the first liquid

Info

Publication number: US2441259A
Application number: US513134A
Authority: US
Inventors: William H Cook
Original assignee: Individual
Current assignee: Individual
Priority date: 1943-12-06
Filing date: 1943-12-06
Publication date: 1948-05-11
Anticipated expiration: 1965-05-11

Description

May 11, 1948.

w. H. cooK 2,441,259 RATIO CONTROL COMPRISING A CHAMBER FOR A FIRST LIQUID PASSING THERETHROUGH AND A MEMBER THEREIN HAVING A PORT FOR FEEDING A SECOND LIQUID INTO THE FIRST LIQUID Filed Dec 6, 1943 2 Sheets-Sheet 1 WILLIAM H. EUU1\ w. H. cooK RATIO CONTROL COMPRISING A CHAMBER FOR A FIRST LIQUID PASSING THERETHROUGH AND A MEMBER THEREIN HAVING A PORT FOR FEEDING A SECOND LIQUID INTO THE FIRST LIQUID Filed Dec. 6, 1943 2 Sheets-Sheet 2 Ell Patented May 11, 1948 RATIO CONTROL COMPRISING A CHAMBER FOR A FIRST LIQUID PASSING THERE- THROUGH AND A MEMBER THEREIN HAV- ING A PORT FOR FEEDING A SECOND LIQ- UID INTO THE FIRST LIQUID I William H. Cook, Toledo, Ohio Application December 6, 1943, Serial No. 513,134

This invention relates to definite predetermined control of proportion between different substances, more especially with liquids as to the delivery of a very minor quantity into a flowing stream.

This invention has utility when incorporated in a slow speed injector pump feeder or accessory for a main stream, as of water to be softened; or otherwise treated as to render potable; while as to petroleum or other substances, the very low fractional percentage of impregnation may be to render it non-corrosive, as well as having to do with treatments in wide ranges of industrial processes.

Referring to the drawings:

Fig. 1 is a side View, with parts broken away, of an embodiment of the invention in a sealed rotary driven unit; 7

. Fig. 2 is a plan view of the measuring unit. of i 1;

Fig. 3 is a bottom plan view of the upper member and the moving parts therein;

Fig, 4 is a top plan view of the rotary carrier for the reciprocating measuring plunger of Fig. 3, showing the control way or cam in dotted lines; the plunger being at the inward throw limit position;

Fig. 5 is a view similar to Fig. 4, but with the plunger at withdrawn position for full intake charge;

, Fig. 6 is a longitudinal section of an adjustable volume plunger measure, wherein the speed of actuation may be a constant while the variation in the device of Fig. 1 may be from speed change;

3 Fig. 7 is a view of the device of Fig. 6, with the plunger in fully adjusted withdrawn -position. being the limit'opposite to the fully expelling position of Fig. 6;

Fig. 8 is a plan view of the invention embodiment of Fig. 6, as being directly in the flow line, as is the showing in Fig. 1, while as shown in 6, it is accessory to and may impregnate aeollateral stream or line; and

Fig, 9 is a section on the line IX-IX, Fig.7, showing the location of the reciproca-ble'member in the housing therefor.

Fluid supply line i has a connection at a boss 2 with a housing member 3. From the member 3, oppositely from the boss 2, there extends a sec ond boss 4 to an outlet or delivery line or duct '5. The member 3 provides a. chamber 6 having a cover or lid section I assembled therewith by screws 8.

Centrally of the bottom side of the chamber 2 Claims. (Cl. 21040) 6 is a thrust ball or step bearing 9 for an element I0 having a lower outward flange H upon which rests a helical compression spring l2 as maintained central and on the step bearing by a flange l3 rising from the floor or bottom side of the chamber 6.

The spring l2 as extending upward from the element ll normally maintains a stem l4 spaced from'the element ll. Accordingly the spring 52 yieldably thrusts a connector disk l5 against a seat IS on the lower side of the lid section 1.

The disk IS on its upper side has a key I! at a seat IB to engage a cross slot of a complementary. connector member l9 of a driving shaft 20 extending outward through a gland 2| on the lid section I.

The shaft 20, in practice is rotated in a definite ratio or proportion to the volume or flow rate of liquid delivered by the duct 1. A passage or duct 22 has a downward discharge port 23. The

ports

23 and 24 are spaced an equal distance from the axis of the shaft 20. The port 24 is in the disk l5. Diametrically of the disk I5 is a way or'guide 25 to the port 24. At intervals in the rotation of thedisk l5, these ports 23, 2-4, are in register. Coincident with such register period, a plunger 26 having a packed gland 27, protrudes to have a pivotal connection 28 with a lever arm 29 having a fulcrum}!!! in a projection 3i 0 from the disk I5.

The free end of the arm 29 carries a roller 32 to ride in an endless way having a concentric portion 33 holding the plunger 21 at the inwardly thrust limit position. This cam way from its 5 concentric portion 33 has an outward portion 34.

As the roller 32 operates in the portion 34, the

plunger 2'! (Fig. 5) is drawn away from the port 24, and thereby effects a drawing into thecylinder or bore 25 of a liquid supply from the port 23. At the limit of this intake of a measured volume of liquid into the cylinder 25, the rotating disk 15, cuts off the port 23. This cut-off interval has duration for the increased diameter concentric portion 35 of the cam way 33; 34. As the roller 32 in the

endless cam way

33, 34', 35, 36, enters the portion 36 of shortening radius, the plunger 2'! is thrust toward the port- 24. The

\ disk l5 at this interval has brought the port 24 the full discharge flow or expulsion due to the.

cam portion 36. The roller '32 in passing therefrom to the concentric cam portion33, cuts on further supply until registry a ain occurs between the

ports

23, 24. In practice, this cycle may occur at a rate of say ten to fifteen per minute. Other more rapid or more slow rate may be adopted to fit into the main line flow volume, or even as to fluctuations therein. Another factor may be the character of the ingredient to be thus supplied by this unit.

For controlled definite speed reduction at a definite relative rate of. flow of a stream, there is provideda motor 38 having incorporated there: in a speed reduction for operating a crank pin 39 in a slot 40 of a stem 4| having a non-binding transmitting connection 42 with a reciprocable member 43. A main housing member orchannel 44 has a cover or lid 45 assembled therewith by screws 46. An adjusting screw 41, regulates a compression helical spring 48 in its thrust or yieldable holding action upon a carrier plate 49 hav ing rollers 50 providing an anti-friction support or mounting for the member 43.

The treating liquid may be supplied by gravity flow to an intake which at a limitof throw of the reciprocable member 43 in one direction, is in register with an intake port 52 at the region of a bore, plunger way oi. cylinder 53in which is operable a plunger. 54. The plunger 54 extends oppositely from the member 43 to the stem 4!. A gland 55 packs the cylinder 53, and therethru the plunger 54 extends and thence thru a guide or stop 56 toward an adjustable limit screw or abutment 51. At the limit of thrust of the member 43 away from the port or intake. 5|, the plunger54 has its head 58 strike the abutment 51. This position is somewhat before the fulllimit of this direction of stroke for the member 43, so that the plunger 54 is thrust toward the port 52, and thereby expels a measured por-. tion of intake liquid from the cylinder 53 for outflow by way of the port 52 and a'spill. groove -or duct59. The adjustment of the abutment 51 determines the extent of evacuation of liquid from the cylinder 53, say into a stream of fluid to undergo treatment. In this instance a chamber 50 in the-housing 44, 45, is not a part of the flow circuit.- 4 7 For adaptation as a part of a liquid stream, there may be an intake duct 5! and an outlet duct 62 to a housing 63, otherwise generally similar to the housing 44, 45, except that the stem M has a packing gland .64. Additionally, instead of the spill way being outward from thehousing, it is agrooved way 65 from the lid side of the member 43 spilling into the chamber 60. p

In each of the embodiments; it -is to be noted that there is disclosed a housing, having therein yieldable means to thrust the piston-containing member against a seat. 3 The piston containing member or cylinder has asingle port for the substance in-drawing as thepiston moves to displacing position. The timing of this relative movement of the piston or plunger as to the cylinder or movable slide member is for intake at the free flowing intake port. There is relative idle position for the plunger as to the cylinder in transit from the intake port to the discharge minor cross-section discharge port, where a squirt-effecting out-flow may be had of the intake charge into the stream to be impregnated and as flowing at the controlled or uniform rate as to the speed of this injector pump device. The efiective tight sealing of the movable piston i carrying or cylinder member as to the housing, is due to the yieldable thrusting of such member as rotatable or reciprocable. The smooth or flat facing seat cooperation is of lap finish nicety and in practice has been chrome plated to retain "and hold such face smoothness as efiective sealing. Again it is to be noted that in the injector pump operation incidental to the embodiments of the devices herewith, the substance charged has no exposure nor leakage in transit thru the feed pump. There is accordingly entire elimination of quality disturbance of the substance, as well as avoidance of oxidatiomthickening, or other departure from the predetermined characteristics and quality as well as quantity for handling and the ratio therefor. The stream to be treated has a known flow rate or volume, and the speed of operation of the injector can be set in step therewith for the ratio required as responding to the situation presented. A flash boiler feeder isutility for the device herein.

The functioning for a measured flow as to a major stream is efiective as a measured ratio control either for introducing or sampling as to the major stream. To effect the latter end, reversal of operation direction may be had. A normal relatively slow speed of operation has been discussed for the recurrence of the pump or plunger cycle, of which but one is shown per rotation. It is to be understood that a multiple thereof is achieved at the retained slower speed, instead of a higher drive rate. The variant volume of course may be as to the major stream variation, or be checked for a constant therewith.

A factor in the sealing, especially as the cylinder is immersed in the stream, is that the pressure of the flowing liquid in. the stream has, a packing influence against seepage or leakage away from the ports. whether in or out of registry for any flow over the sealing face. The substance handled may, as away from the air, have its fluidity maintained against becoming gummy. While so kept thin and fluid, notwithstanding the pressure holdih of the cylinder member against the ported housing, anti-friction sealing film of non-leakage flow may lubricate the lapfinish smooth working faces, in their wear-in functioning for retained tightness of fitting in shifting. The spring means serve initially to place the parts in cooperative relation and eliminate any lifting clear should there be a build up of pressure at intake or exhaust which might tend to disturb. the fitting balance. The flexibility or relative-rock-permitting connection between the cylinder member and its actuator have value in practice in thereby avoiding any driving tendency which might tend to cramp or bind to disturb the close registry.

What is claimed and it is desired to secure by Letters Patent is:

1. Apparatus of the class described comprisingv a housing having a chamber therein, inlet and'outlet ports in the housing for a, flowing stream, means for supplying a second substance to the housing, a rotatable disk in the chamber engaging a wall thereof, yieldable means for maintaining the disk in engagement with the chamber wall, a port in the chamber wall connected with the second substance supply and spaced from the axis of rotation of the disk, 3 port in the disk spaced from the axis of the disk, a spillway groove in the chamber wall spaced from the first mentioned port and spaced from the axis of the disk, said ports and groove being spaced the same distance from the axis of the disk, a diametrically located bore in the disk and connected with said second mentioned port, a plunger in said bore, a lever having one end pivotally connected with the disk and a roller on the other end of the lever, a cam surrounding the axis of the disk located in the chamber wall and having a portionconcentric with said axis, an outwardly extending portion from said concentric portion and anupwardly extending portion to the concentric portion, said roller adapted to engage said cam, a connection between said plunger and said lever whereby the plunger withdraws the second substance into the bore as the roller passes through the outwardly extending portion and discharges the second substance thru the groove into the chamber as the roller passes through the inwardly extending portion.

2. For measured control apparatus for a flowing stream of a first substance; means for applying a second substance to the apparatus, said means including a housing providing a chambet, a relatively movable member in the chamber engaging a wall thereof, yieldable means for maintaining the member in engagement with the chamber wall, a first port in the chamber wall connected with the second substance supply means, said member having a second port toward the first port wall of the chamber, said chamber having a spillway groove for said second substance delivery to the apparatus, said groove being spaced from said first port, the location of said first and second ports and groove being such that, upon said relative movement of the member as to the housing wall, the second port may have alternate register with the first port and groove, a bore in the member connected with the second port, "a plunger in said bore, relative movement efiecting actuating means coacting between the member and housing providing connection between the plunger and member whereby the plunger withdraws the second substance into the bore during the register location between the first and second ports and discharges from the bore said second substance during the register of the second port with said groove.

WILLIAM H. COOK.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 354,762 Andrews Dec. 21, 1886 434,392 Hyatt Aug. 12, 1890 951,397 Hill Mar. 8, 1910 1,159,611 Sundh Nov. 9, 1915 1,289,716 Fenchelle Dec. 31, 1918 1,295,211 Riedler Feb. 25, 1919 1,401,145 Everson Dec. 27, 1921 1,726,083 McLaughlin et a1. Aug. 27, 1929 1,794,946 Crain Mar. 3, 1931 1,906,779 Von Kalmann May 2, 1933 1,991,235 True et al. Feb. 12, 1935 2,011,165 Steiner Aug. 13, 1935 2,061,144 DeStoutz Nov. 17, 1936 2,069,651 Ferris Feb. 2, 1937 2,174,784 Formhals Oct. 3, 1939 2,218,393 Corydon Oct. 15, 1940 Certificate of Correction Patent No. 2,441,259. May 11, 1948. WILLIAM H. COOK It is hereby certified that error-s appear in the printed specification of the above numbered patent requiring correction as follows: Column 5, line 17, claim 1, for the word upwardly read inwardly; hnes 28 and 29, claim 2, for applying read suplying; and that the said Letters Patent should be read with these corrections therein that the same may conform to the record of the case in the Patent Oflice.

Signed and sealed this 29th day of June, A. D. 1948.

[IIAL] THOMAS F. MURPHY,

Assistant Oowmz'ssz'mr of Patents.