USRE16932E

USRE16932E - Clabifying device eob liquids

Info

Publication number: USRE16932E
Authority: US
Priority date: 1922-06-26
Publication date: 1928-04-10
Also published as: US1602935A

Description

April 10, 1928.

' A. L. RASEY CLARIFYING DEVICE FOR LIQUIDS Original Filed June 26. 1922 I INVENTOR. W /P Ewma,

A TTORNEYS Mean; maze.

UNITED STATES PATENT OFFICE.

menu. 1-. man, or MILWAUKEE, wrsconsm.

CLABIIYING DEVICE FOR LIQUIDS.

Original application fled June 26, 1922, Serial in. 570,880. Divided and application filed "January 7,

1924, Serial'l'o. 884,734. Original No. 1,602,935,

January so, 1928. Serial No. 250,648.

This invention relates to improvementsin clarifying devices for liquids. The specific disclosure herein relates more particularly to an embodiment of my invention which is peculiarly adapted to remove physical impurities from oil.

It is the primary objectof this myention to produce a device capable of effecting the rapid removal from any liquid all physical impurities, such as solids or other 11 u1ds of greater specific gravity than the liquid to be purified. Filters and other devices now available are both cumbersome in size and slow in operation.

It is a further object of this invention to provide a clarifying device of such a size and character as to be peculiarly adapted for association with the circulatory lubricating system of an internal combustion engine or the like.

The application of a clarifying device to a circulatory system for lubricating oil involves certain problems which to the best of my knowledge, have not hitherto been solved. Attempts have been made to clarify the oil in such systems by the introduction of screens and similar mechanism for filtering the oil. These expedients have proven unsuccessful forthe reason that in a very short space of time the filters or screens have become clo god and wholly inoperative. In my copen ing application filed March 8, 1920, Serial No. 364,335, and entitled .Separators, I described a device which I have used with partial success in a circulatory system for lubricatin oil. In the device disclosed in that apphcation I utilized the current of an automobile generator to energize magnets arranged in the path of flow of the oil to the end that these magnets might draw from the oil all particles of magnetizable metal carried therein. I found that as long as the generator was operative the magnets accumulated a clot of impurities but that when the generator ceased to function due to the reduction in speed or to the stopping of the motor the clot of impurities held by the magnets was released and allowed to return into the circulatory system where it tended 'to stop the passa es and minute openings in the motor. l urtherdated October 12, 1926. Application for reissue filed more the device disclosed in the above identlfied application did not ermanently remove from the liquid fluid and other nonmagnetic impurities carried thereby.

It will be readily understood, therefore, that further-objects of the present invention are to provide a clarifying device which will wholl and permanently remove from liquid passe magnetic physical impurities carried by said llqllld; to provide convenient and simple meansfor collecting and drawing off such mpurities whereby the circulatory system maybe permanent-1y rid of.t-hem;. and to as prov1de a simple, compact and easily constructed mechanism capable of achieving the desired clarification of the oil or other liquid passed therethrough.

In the drawings Fig. 1 is a side elevation of the internal combustion engine of a motor vehicle with a device embodying my invent-ion applied thereto, portions of the electrical system of thiel vehicle being illustrated diagrammatica y. I

Fig. 2 is a vertical central section through the chamber Within which clarification of liquid is eflected.

Figs. 3 and 4 are detail views upon an enlarged scale of two of the conical on s which are disposed within the clarifying evice shown in Fig. 2.

Like parts are identified by the same reference characters throughout the several 35 views, which illustrate the device in service in association with an internal combustion engine under conditions for which the embodiment herein disclosed is particularly designed.

Aninternal combustion engine is represented at 10, and 11 represents an-oil pump which is preferably mounted, as usual, in association with the lowest portion of the sump 12 of the crank case 13, of the internal o5 combustion engine 10. A pipe 14 connects the delivery end of oil pump 11 through my improved clarifying device 15 with a point 16 adjacent the top of the internal combustion engine. It will be understood 100 that the oil pumped by the device 11 will be distributed to the several bearings of the intherethrough any magnetic or nonso pi 14. t

- The chamber 15 is shown in Fig. 1 be supported b a bracket 17 from an upright member suc as the board 18 which is 1n tended to represent, diagrammatically, a

portion of the dash of the vehicle. Bracket 17 preferably comprises a single resilient piece of metal bent to theform shown in Fig;

tion 22 of the clarifying chamber. cup shaped member 26 is 1 and a rtured adjacent its end in order that it may clamped between nuts 19 and 20 u n the bolt 21 which is centrally disposed within chamber 15. v

The oil clarifying chamber 15 includes an n per or body portion 22 of cylindrical sli ape and closed at its top with the exception of the port 23 through which the interior of the chamber is put into communication with the discharge end 14' of pipe-14.

The bolt 21 is threaded into the upper portion of the cylindrical body 22 of the chamber and is axially disposed therein. The lock nut 20 threaded upon bolt 21 has the further function of securing against the body 22 of the chamber a fiberplate 24 upon which binding posts 25 for the electrical connections are conveniently mounted.- As previously stated, the bolt 21 is made of suflicient length to permit the threading thereon of a second nut 19 between'which and the nut 20, the laterally projecting arm of bracket 17 is secured.

A cup shaped member26 is threaded upon the lower end of the cylindrical body por- This rted at 27. A sto cock 28 controls the db livery of materia through said port.

A tube 29 has its lower end threaded in such. a way as to permit this tube to be screwed downwardly into the porti27 in the manner indicated in Fig. 2. O enings 30 through the tube afford communication between the interior of the tube and the interior of the cup shaped bottom closure 26 and tube 29 serve as guides to facilitate the,

manipulation of the cup shaped cap 26 into its proper position of engagement with the lowerend of the cylindrical body portion 22 of the chamber.

The tube 29 is shouldered at 31 and has mess I a'reduced diameter from that point .to its u per extremity. Su ported from y the sli oulder 31 are a num r of substantially conical cups spaced from each other and from said shoulder-by collars 32. The bottommost .cu 33 is referably inverted as shown in Fig. 2. he remaining

cups

34 and 35 are alternately of the character shown in Fig.4 and Fig. 3. Each of the

several cups

33, 34, and 35 issimilar to each other cup in its shape',each is preferably the shape. of a truncated cone at its smaller -end,each cup is provided with an inwardly directed, annular flange 36. These flanges 36 are dis osed upon the reduced upper portion of t-u e 29 and are confined between adjacent spacing collars '32. A collar 32' threaded upon the upper extremity of tube 29 clamps the entire. assembly of cups and spacing collars in place upon the tube.

Cups

33, 34, and 35 are eacliprovided with an opening 38

ver Cu s

34 and 33 di er from cups 35 in that e'ac of the

cups

34 and 33 is preferably of slight] greater diameter at its larger end than t e plurality openings 39 in addition to the opening 38 above mentioned. By referring the openings 39 rather than to pass outsideof the periphery of cup 34. Each cup 35, however, lacks the openings 39 and the periphery of these cups'is correspondingly far cups 35 and is also provided with a close to the flange 36."

ther removed from the inner wall of the cylindrical member 22. .Thus the several cups act as baflle plates and cause liquid flowing through chamber 15 to flow around cups 35 and through cups 34 for the most art. It is not necessary for the proper unctioning of this apparatus that cups 34 be so large as to fit tightly within cylinder 22 and prevent the passage of liquid about their peripheries. In fact I believe it advisable to allow a small portion of the liquid to pass through the extremely limited space available between the peripheries of cups 34 and the inner face of member 22.

The exterior of the cylinder 22, which forms the body of the device, is peripherally recessed and is thereby adapted to receive an electrical winding indicated at 40 in Fig. 2. The two ends 41 and 42 of the wire which comprises winding 40 are led outwardly at the top of the device and are connected with binding posts 25. Means hereinafter to be described is rovided for supplying current through bin ing posts 25 to the winding 40 and thereby creating a magnetic field.

The chamber 15 including the body por- I tion 22 and the lower closure 26 thereof is preferabl "made of non-magnetic material, such as w ite metal or aluminum. The several caps 33, 34, and and bolt 21 are-preferably made of soft iron or some other good conductor of magnetic lines of force. The arrangement is such. that the tube 29 and bolt 21 will constitute a core in which the magnetism developed by the current flowing through the winding will be concentrated. The metal of each of the cups 34 and 35will also be magnetized, but the strength of the magnetism in those elements. will decrease toward their peripheries. Thus when a magnetic particle is withdrawn from the oil at the periphery ofone of the

cups

34 or 35 the particle will tend to pass inwardly toward the tube 29 due to the greater magnetism existing in the center of the device.

The manner in which I prefer toconnect my improved clarifying device in the electrlcal circuit of a motor vehicle is indicated digrammatically in Fig. 1.

Practically every modern motor vehicle is provided with a generator 42. a battery 43, and a cut-out 44, the latter being adapted to break the circuit between the generator 42 and battery 43 when the current output of the generator falls below a predetermined uantity. The obvious and well known unction of the cut-out is to prevent the cur rent stored in the battery from expending itself through the windings of the generator at such times as the generator is not in operation.

A single wire system is illustrated. One terminal of the generator is connected with p the ground at 45 and the other is connected by wire 46 with one of the binding posts 25 carried at the top of the clarifyingchamber 15. From the other of the binding posts 25 a wire 47 leads to the cut-out device 44, which is conimonly nnounted upon the dash 18. A conductor 48 leads from the cut-out 44 to one terminal of the battery 43, the other terminal beinggrounded at 49.

It will be understood from the foregoing that the generator, the winding 40 upon the clarifying chamber 15, the circuit breaker or cut-out 44, and the battery 43 are all connected in series. When the cut-out device 44 is in its closed position the current delivery from the generator to the battery must necessaril pass about the winding 40 upon the clari ying chamber 15. It is not necessary to utilize a great deal of energy in thecoil 40. In the devices which I have actually constructed and put into operation the current loss is so small that it cannot be detected with an ordinary ammeter. The arrangement is obviously such that this device consumes a minimum of current. The magnetic coil 40 is only operative while the generator 42 is charging the battery. In other words, as soon as the engine is in operation the coil 40 will be carrying electricity and the magnetic elements of the device will be energized. As soon, however, as the motor drops below. the speed necessary for charging the batter or when the motor is stopped altogether, the automatic cut-out device 44 becomes. operative to break the circuit and the coil 40 of the clarifying cham her is disconnected from the battery. I am thus able to provide current formy device when currentis needed and to render the operation of the device wholly automatic so that the current is shut off to prevent 'wastage of vthebattery at such times as the oil is not circulated through the clarifying chan1- ber15.

Where the device is used elsewhere than in a motor vehicle its coils will be energized through any switch controlled electrical circuit and the operator may turn the current through the device at such times as oil or other liquid is passingtherethrough.

The operation of this device is as follows:

\Vhen the motor 10 is running, the oil collecting in the sump portion 12 of the crank case 13 will beimpelled by pump 11 through pipe 14 into an intermediate portion of the chamber 15. It will be noted by reference to Fig. 2 that the pipe 14 discharges into the chamber above the inverted conical cup 33 and between the cups 33 and34. It is the function of cup 33 to provide a partial closure for the lower portion of chamber 15 in which the sludge or foreign particles removed from the oil by the operation of this device may collect without becoming entrained by the flow of oil entering the device through pipe 14.

The oil flows very slowly through chamber 15. It would be possible to make tube 29 non-magnetic and to make the cylinder .portion 22 of magnetic material, the arrangement being such as to draw the magnetic particles outwardly instead of inward ly, but in that constructitm the oil would have a comparatively rapid rate of flow since it would pass about the bafiie plates at their smallends instead of at their outer extremities, as in the present device. For this reason the construction illustrated is preferred. Another reason for preferring the present construction is found in the fact that herein the magnetism is concentrated at a point remote from the path of liquid flow so that there is a constant tendency towithdraw magnetic material toward the axis of the device and out of the course of flow of the liquid. The oil or other liquid entering through pipe 14 passes upwardly within cylinder 22 until it encounters the cup or the baflie 34. The combined area of the several 7, the periphery of pigeu. The rate of flow of the oil ast this a and the other in the series, wi therefore, be comparatively slow.

A small of the oil will flow between the eri hery of the plate 34 and cylinder 22. u oil as follows this course Wlll pass cup 34 inthe form of a thin film so that any articles of forei matter "carried by the 01 will be brought in extremely close proximity to the periphery of the cup. matter are of magnetic material they will cling to the cup and will gradually pass downwardly alon its inner surface toward the center of the direction not only by the greater magnetism existing at the center of t e device but also b gravity. Non-magnetic material will also accumulate about the peripheries of the cups and will tend to pass downwardly toward their lower portions. Doubtless some of this non-magnetic matter adheres to magnetic particles and is drawn with the mag-' netic particles to the center ofthe device. Other non-magnetic particles doubtless adhere to the cups themselves until they are dislodged by the flow of liquid past them or by some other cause and are actuated by gravity toward the bottom of the cup. The space cent its between each pgir of cups also constitutes a settling cham r wherein the speed of the oil is greatly reduced. The non-magnetic particles which have been carried in suspension by the rapidly moving oil will settle out when the speed of-the oil is reduced following its entry into one of the relatively large spaces between adjacent cups or baf- It has already been stated that a portion of the oil asses between the periphery of cup 34 an the inner wall of cylinder 22. The remainder of the flow will take place through the several openings 39. In the next succeeding cup 35, however, no openings 39 are provided and it is necessary that the entire flow of the liquid take place about the periphery of the cup. In order not to restrict unduly the flow of oil through the device, cup 35 is of smaller size than cup 34 and a greaterunobstructed area lies adja eriphery. The thickness, however, of the film of oil delivered over the periphcry of any of the cups 35 is relatively very small and any magnetic particles still carried by the oil must pass so closely to cup 35 as to come within the field of ma netic attraction exercised by said cup and will'tend to be drawn from the oil and retained by the cup.

Above cup 35 is a secondxcup 34 and as previously stated, it will be necessary for a in part of the oil passing about the perip ery of en 35 to find its way through the opening39 o the succeeding cup 34. This construction brings about a downward cur- If these particles of foreign device, being urged in that ence' lated by the ma rent of oil between the first cup 35 and the second cup 34, thereby facilitating the move ment toward the center of the device of any "moving downwardly between on s 35 and the second cup 34 turns upw y to pass throu 'h openings 39 there will be a tendency for a solid matter carried in suspension to precipitate toward the bottom of cup35.

During the progress of the oil thro h this device it is su jected repeatedly to e action of the mechanical and magnetic agen-- cies tending to remove all foreign matter therefrom. It has been found that even water and other like liquids with r specific avity than the oil will i separate from the oil during the passage of the oil through this device. When, eventually, the oil reaches the top of chamber 15 and asses out through pi 14' it will be clari ed and free from E grit or other foreign matter. i

' It will be remembered that each of the

cups

34 and 35 is provided adjacent its smaller end with an n .38. As the sludge or foreign matter ually accumulates in the cups it downwardly through openings 38 towar the bottom of the device and eventuall reaches the ca 26 within which it is retained until the 00 28 is o ened. The chamber 15 is preferably locate well above the remainder of the circulatory system of the motor so that when cock 28 is opened only such oil as is retained within the chamber will flow out. The flow of oil from the chamber will carry with it practically the entire accumulation of sludge, grit and water from

cups

34 and 35 as well as from cap 26. If, however, it is desired to give the device a more thorough cleanirgg the cap 26 may be unscrewed from the b y portion 22 and, when removed therefrom, will carry with it the entire assembl only t e bare interior of the cylindrical body portion 22 and the bolt 21 projectin centrally downwardly therein. Ob'viou' y, the device may then-be thoroughly cleansed and readily restored to operative condition by replacing cap 26.

It will be noted that neath the openings 39 (toward the center of the device from said openings) there is a considerable space for the accumulation of foreign matter. In other magnetically operated oil clarifying devices it has been a fact that as soon asst e supply of current to the devices became low or was cut off altogether, due to the low speed of operation ofithe motor the electrical y induced magn longer exist and the clot of material accumuets would be released to be flow of oil through the carried on b t e of nested

cups

34 and 35 leaving etism woul no motor where there was. a serious tendency mean device into the lubricating passages of the for this material to catch and clog the lubricatin circuit. This difficulty has been comlete overcome by the resent device. ct er or not current is owing through the energizing coil 40, an and all material which has been with r'awn from thev liquid either mechanically or magnetically is permanently retained in the lower portions of the cu out of reach of currents which might tens to draw these particles again nto the main fiow of the oil. I

This device is particularly well su ted for use upon a motor vehicle or in combination with an internal combustion engine. I have found that the vibration set up by the operation of an internal combustion en inc (such as the engine of a motor veh1cle ver helpful in effecting a separation of bot the magnetic and non-magnetic particles from the oil. It is clear that when a bit of iron or other magnetizable material has been attracted to the periphery of one of the

cups

34 or 35, the vibration of the whole device, induced by the operation of the motor with which it is associated, will tend to aid gravity and the greater magnetism existing at the center of the device to draw that particle downwardlj toward the bottom of the cup. The vibratory action likewise will assist in causing matter accumulated in the upper cups to pass downwardly through openings 38 into the cups beneath. I also believe that the vibrations accounts in some measure for the success of the device in extracting non-magnetic particles as well as magnetic particles from the oil. I v

To the end that I may utilize asfar as possible the beneficial efiects of vibration I prefer to mount this device upon the type of bracketshown at 17 in Fig. 1. As previously stated this bracket comprises simply a single piece of resilient metal and the chamber 15 is suspended from the bracket as shown;

While the clarifying device above described is particularly adapted for use upon a 'motor vehicle, its value is not restricted to this use. So far as I am aware this device is the first practical clarifying device through which theliquid to be cla-rlfied can be passed with any degree of rapidity. Concerns now en aged in vending oil use filters through whic the oil requires several hours to pass, whereas the same quantity of oil may be clarified in my device in a few minutes. I have connected the chamber 15 in an oil line through which oil was fed by gravity and have energized the winding 40 with electricit' from a li hting circuit with good resu ts. Black, gritty oil passed through the device was dischargd free from grit and with original light color restored.

Similarly I have applied this device to motor vehicles wherein the -motors contained oil which was black, gritt and apparently non-viscous and after a ew miles, 0 ration of the vehicle the oil has been freed In its grit and its viscosity and light color have the liquid to be clarifie While I regard the particular shape and construction; illustrated asbeing an extremely simple and convenient embodiment of my invention, and while I believe that by utilizing the construction illustrated, devices'embodying my invention can be reduced in size to occu y a minimum space for a given capacity, nevertheless, do not wish to limit my invention in any way to the particular construction above disclosed.

It will be clear to those skilled in the art that many other constructions might be adopted in which the inclined bafile plates and magnetic elements of the present disclosure might be rearranged to utilize the principle discussed above, whereby the foreign matter, once separated from the liquid flowing through the device, is withdrawn by magnetism and gravity to a point remote from the path of flow of the liquid and is there maintained against the possibility .of becoming again taken up by the liquid.

I claim: 7

1.- The combination with an oil passage includin a chamber, of a. magnetic bod disposed in said chamber in the path 0 fluid therethrough, a second chamber beneath said magnetic body and in communication with said first chamber and remote from the path of fluid therethrough, a coil having said magnetic body within its influence, and an intermittently operated source of electrical energy operatively connected with said coil, whereby said body will be intermittently magnetically active to remove magnetic particles from fluid passing through said chamber and a large portion of said particles upon their release from said body during the magnetic inactivity thereof will finally pass into said second chamber.

2. The combination-with a fluid duct including a chamber, of a plurality of spaced magnetizable plates inclined within said chamber and having their upper margins in the path of'fiuid flow therethrough, said clined elements so di of fluid through said chamber a coiled sl gtrical conductor including said plates withm its magnetic influence and adapted to produce a magnetic field concentrated at a point remote from the upper margins of said plates, and an intermittently operated source of electrical ener to sup y current to and conductor, where y said p ates Wlll be ma netically energized intermittently to w1 draw magnetic particles from fluid passing their margins and, to release sa 1d particles into said cavity upon the intermittent cessation of the su ply of electrical current.

3. The com m'ation with a passage arranged to permit of a continuous flow of liquid and provided with a settling chamber of a plurality of lates of magnetic material s aced in the irection of liquid travel t rough said passage with upper'marins 1n the path of liquid flow therethroug and adapted to deliver material gravltationally to said chamber, an electrical windin about said passage adapted to be intermittently energized and adapted to produce a magnetic field including said plates with its center at a point remote from said upper margins, whereby magnetizable partlcles 1n the hqurd of said assage will be wholly withdrawn from sai liquld when said winding is energized and a large rtion of such particles will be ultimately elivercd to said chamber when said winding is de-energized.

4. A clarifying device for llquids, said .device comprising a chamber, a set of elements within the chamber each having one marg n elevated and so arranged as to permit liquid flow across their elevated margin, and means for creating a magnetic field embracin said chamber, and assinge axially throug all portions of sai cham r.

5. A clarifying device for liquids, sald device comprising a chamber, a series of inclined elements within the chamber, each of said elements having one margin elevated, said elements being constructed of magnetic material, means for assing liquid to be clarified throu h said chamber and upwardly across t e upper margins of said in clined elements, and means for magnetizing said elements.

6. A clarifying device for liquids, said device comprising a chamber, a series of in osed within the chamber as to permit liquid flow across their upper margins, means for passin liquid to be clarified through said cham er and upwardly past the upper margin of said inclined elements means for creating a magnetic field embracing said elements, and means for concentrating the intensity of said field adjacent the lowest portions of said elements.

7 A clarifying device for liquids, said device comprisin a chamber, means for inducing a flow of 'quid through said chamber,

spaced elements within said chamber having relatively quiet areas between them remote from the 'path' of li uid flow through the chamber and means or creating a magnetic field including said elements. Y

8. A clarifying device for liquids, said dev1ce comprising a chamber, means for inducing ,a flow of liquid through the chamber, spaced elements within said chamber having their margins exposed to the liquid flowing therethrough, the area between said elements being comparatively quiet and remote from the path of flow of liquid through the chamber, means for creating a magnetic field including said chamber, and means for concentrating the intensity of the magnetic field in the area remote from the main path of flow of the liquid.

9. A clarifying devicefor liquids, said dev1ce comprising a chamber, spaced elements constructed of magnetic material disposed within said chamber, means for passing liq- 111d. to be clarified through the chamber, and an exclt-mg coil surrounding said chamber for magnetizing said elements.

l( A clarifying device for liquids, said 'devlce comprising a chamber, a sup ort of magnetlzable metal centrally disposer? there- 1n, spaced elements of magnetizable mater1al mounted upon said support and a conductor coiled about said chamber and adapted when energized to create a ma netic field including said chamber, the centre support and spaced elements being so disposed as to constitute a core for the coiled conductor. i

11. A clarifying device for liquids, said device comprising a chamber having a ortion protected from currents or liquid ing through the chamber, means for inducing a ow of liquid through the chamber, a series of spaced elements of magnetizable material having their margins exposed to the flow of liquid within the chamber, a central support for said elements, said support being also of magnetizable material, and an electrical conductor so disposed that current carried thereby will energize said coil and said elements.

12. A clarifying device for liquids, said device comprising a chamber, an electrical winding exterior to said chamber, a support of magnetic material centrally disposed therein, a series of spaced elements of magnetic material mounted upon the support, said support and said elements constituting a core for said winding, and means for drawing off from the space between saidelements matter there accumulating.

13. A clarifying device for liquids, said device comprising a peripherally grooved chamber of substantially circular cross-section, an electrical conductor wound within said groove and forming a coil exterior to said chamber, a substantial mass of magnetic mesa "chamber, a set spaced elements of magnetic material symmetrically disposed about said mass of similar material, means for inducing a flow of liquid through said chamber and past the margins of said elements, and means for drawing from between said elements material there accumulating.

14. A clarifying device for liquids, said device comprisin a two-part chamber of circular cross-section provided with an open ing in its bottom and inlet and outlet ports, a cock controlling the opening, means for obstructing the circulation of liquid throughout the portionzof said chamber adjacent said openin means for inducing a flow of liquid upwar ly through said chamber, a core of magnetic material centrally disposed therein, a series of baflle elements of magnetic material provided with openings in their bottom portions and vertically spaced within said chamber in the path of liquid flow there'- through, the area available for liquid flow being limited about said elements, and means for creating a magnetic field including said chamber.

15. A clarifying device for liquids, said device comprising a two-part chamber of circular cross-section provided with an opening in its bottom and inlet and outlet ports, a cock controlling the opening, means for obstructing the circulation of liquid throughout the portion of said chamber adjacent said opening, means for inducing a flow of liquid upwardly through said chamber, a core of magnetic material centrally disposed therein, a series of battle elements of magnetic mate rial provided with openings in their bottom portions and vertically spaced within said chamber in the path of liquid flow therethrough, the area available for liquid flow being limited about said'elements, means for creating a magnetic field including said chamber, and means for subjecting said chamber to vibration.

16. A device for removing impurities in a circulatory lubricating system comprising a chamber adapted to be incorporated in said system, magnetizable baflle elements spaced within said chamber to form. a series of pockets therein, the direction of flow of the lubricant through said chamber being across the open mouths of the pockets and the area of said pockets being lower than the mouths, and means for subjecting said chamber to the influence of a magnetic field whereby said baflle elements are magnetized and tend to withdraw magnetizable foreign matter from. the lubricating matter passing through said chamber, said pockets being adapted to retain such matter irrespective of the continuance or discontinuance of the magnetic field.

17. The combination with an internal combustion en ine provided with a circulatory system lnc uding a chamber, and a settling cavity 1n communlcation therewith,of an electrical generator arranged to be driven.

from said engine, and electromagnetically energized separator means operatively con-' nected with said generator to receive energy therefrom during the actuation of said englue and to be deener-gized whensuch engine stops, and operatively associated with said chamber and above said cavity for the gravitational deliver of such material tosaid cavity when said clectromagnet is de-ener-' gized. v

18. The combination with an internal combustion engine having a circulatory lubrication system and an electric generator, of electromagnetic means operated from said generator associated with'said system and adapted wholly to remove magneticall attractable particles from the path of fluid in said system, whereby upon the stopping of the engine and the consequent cessation of the current supply of said generator to the electromagnetic means such particles will not be restored to said system.

19. The combination with an internal combustion engine, an electric generator driven therefrom, a storage batteryand a circuit within said chamber, and a' coil of wire in-' terposed between the generator and the battery and adapted to receive electric current produced by the generator and to utilize said current to energize said baflle elements, the flow of said electric current to said coil ceasing when said engine stops.

20. The combination with an internal combustion engine, an electric generator driven therefrom, a battery and a cut-out connected in series with the generator and the battery, of a circulatory lubricating system for said engine, a chamber within said system, means subject to the control of said cut-out forutilizing the current passing between the generator and the battery for developing a magnetic field including said chamber, the flow of said current to said means ceasing when said engine sto s, means for subjecting said chamber to tie vibrations of the engine, a core of magnetizable material centrally disposed within said chamber, cups spaced apart within said chamber and the path of liquid. flow therethrough and provided with openings in their bottoms, and means for sequestering in said chamber foreign matter lodging therein, whereby irrespective of the operation of said generator foreign matter. will not be returned to said lubricating system and the flow of lubricant within said system Wlll be unobstructed.

21. In combination with an internal combustion engine provided with a circulatory lubricant system, a chamber in communication with said system and through which the fluid passes, an electro-magnctically energized separator in said chamber and substantially in the path of said fluid for removing impurities theretrom, and means op-' eratively connected with said engine for antomatically energizing and tie-energizing said separator means uponstarting an stopping of the. motor, said separator being adapted to permit gravitational movement of the magnetica ly attracted particles out of the path of said fluid when deenergized.

22. In combination with an internal combustion engine provided with a circulatory lubricant system, a chamber in communication with said system and through which the fluid passes, an electro-magnetically energized separator in said chamber and substantially in the path of said fluid for removing impurities therefrom, means operatively connected with said en ine for automatically energizing and e-energlzing said separator means upon starting and stopping of the motor, and means for deenergizing said separator when the motor speed falls below a predetermined rate, said separator being adapted to permit gravitational movement of the magnetically attracted particles out of the path of said fluid when de-energized.

23. In combination with an internal combustion engine provided with a circulatory lubricant system, a chamber in communication with said system and through which mesa 4 i the fluid passes an electro-magnetically energized separator in said chamber and substantially in the path of said fluid for rebustion engine provided with a circulatory lubricant system, a. chamber in communication with said system and through which the fluid passes, an electro-magnetically energized separator in said chamber and substantially in the path of said fluid for removing impurities therefrom, means operatively connected with said en e for automatically energizing and e-energizing said separator means upon starting and stopping of themotor, and means for deenergizing said separator when the motor speed falls below a predetermined rate, said separator being adapted to permit gravitational movement of the magnetically attracted particles out of the path of said fluid when de-energized, and including a collecting pocket substantially removed from the path of lubricant through said chamber adapted to receive material which gravitationally moves relative to said magnetic means when the latter is tie-energized.

ALBERT L. RASEY.