US2867225A

US2867225A - Degreaser

Info

Publication number: US2867225A
Application number: US388396A
Authority: US
Inventors: Erich R Zademach; Charles J Auger; Irwin L Lans
Original assignee: Metalwash Machinery Co
Current assignee: Metalwash Machinery Co
Priority date: 1953-10-26
Filing date: 1953-10-26
Publication date: 1959-01-06
Anticipated expiration: 1976-01-06

Description

Jan- 6, 1959 E. R. zADEMAcH ErAL 2,867,225

DEGREASER 4 Sheets-Sheet 1 Filed on. 26, 195:5

Jan. 6, 1959 E. R. ZADEMACH ET AL 2,867,225

DEGREASER 4 Sheets-Sheet Filed Oct. 26, 1953 NNW ma w wN @M J. Q M E 5M MMX f QM All v MM ....MM f-- .mww a i@ -mm ...KIQ ,AN MMWMW K ,wv www Nw Jam 6, 1959 E. R. zADEMAcH ET AL 2,867,225

DEGREASER 4 Sheets-Sheet 4 Filed Oct. 26, 1953 United States Patent O DEGREASER Erich R. Zademach, Hillside, Charles J. Anger, Chatham,

and lrwin L. Lans, Nutley, N. J., assignors to Metalwash Machinery Company, Elizabeth, N. J., a co-partnership Application October 26, 1953, Serial No. 388,396

25 Claims. (Cl. 134-109) This invention relates to vapor spray degreasers.

In vapor spray degreasers now in use, it is customary to condense the solvent vapors as they pass upwardly past the work to be degreased by means of condensing coils extending around and just below the open top of the apparatus, the condensed vapors returning to a water separator and then being reheated. However, the position of these condensing coils within the open mouth of the apparatus is objectionable as it greatly decreases the working area. Furthermore, these coils are damaged by contact with the Work to be degreased, the work being lowered through the open top of the apparatus within the coils.

It is accordingly a principal object of the present invention to provide a vapor spray degreaser having an unrestricted work area due to the relocation of the condensing coils.

It is another object of the present invention to provide a vapor spray degreaser wherein novel, more compact and readily removable condensing coils are provided in odset relation to the work area.

It is still another object of the present invention to provide a vapor spray degreaser of the above type having a drain plate below the oiset condensing coils leading to a water separator located within a pump sump which :is in turn located within a solvent storage tank, the pump sump, pump and water separator being easily and readily removable as a unit for purposes of repair and replacement.

Other objects of the present invention are to provide `a vapor spray degreaser bearing the above objects in mind which is of simple construction, inexpensive to manufacture, has a minimum of'parts, is durable, easy to use and efficient in operation.

For other objects and a better understanding of the invention, referencemay be had to the following detailed description taken in connection with the accompanying drawing, in which:

Figure 1 is a perspective view of a vapor spray degreaser embodying the features of the present invention and shown partly broken away to show the interior construction thereof;

Figure 2 is a front elevational view thereof looking from the rightof Figure 1;

Figure 3 is a vertical sectional view taken along the line 3 3 of Figure 2;

Figure 4 is a fragmentary, transverse sectional view taken along the line 4 4 of Figure 2;

Figure 5 is a fragmentary vertical sectional view taken along the line 5-5 of Figure 4;

Figure 6 is a perspective view of the condensing coil spacer element, shown alone, and

Figure 7 is a perspective view of the pump, pump sump and water separator being removed as a unit from the apparatus.

Referring now more in detail to the drawing, wherein similar reference numerals identify corresponding parts throughout the several views, 10 represents an upstandice` ing rectangular tank open at the top and having a side tank 11, substantially as illustrated.

The bottom of the housing 10 is provided with an inclined bottom wall 12 (Fig. 2) freely spaced above the lower edges of the tank 10 proper, the bottom wall 12 being inclined downwardly toward a side openingv surrounded by a flanged member 13 to which is secured a removable cleanout door 14 by means of bolts 15.

The tank 11 at one side adjacent one end of door 14 is provided with an outlet 16 controlled by a valve 17.

As a means of heating solvent disposed above bottom wall 12, a plurality of steam heating jacket elements 18, v19 and 20 are welded to the undersurface of the bottom wall 12 (Fig. 2), the element 18 comprising a rectangular plate, the element 19 being identical with element 18 except for the provision of vertical bale 21 provided along one longitudinal edge thereof and terminating short of the entire length of the plate, while the element 20 is similar to element 18 except that it is provided with a vertical baffle 22 along one longitudinal edge, the Vertical baille 22 terminating short of the entire length of the plate and being offset from the vertical baffles 21. The front wall of the housing 10 is provided with an outlet 23 communicating with the space intermediate an end element 18 and bottom wall 12,-and an inlet 24 communicating with the space between an end element 19V at the other end and bottom wall 12. The inlet 23 is connected to a suitable source of live steam.

The steam will be circulated through steam

heating jacket elements

18, 19 and 20, below bottom Wall 12, in substantially a zig-zag path starting at the inlet 23 and progressing to the outlet 24. This is substantially similar to that set forth in application Serial No. 355,947, led May 19, 1953, now abandoned, for a Heating Jacket, owned by the assignee of the instant invention.

A removable grill 25 (Figs. l and 3) is mounted above and in vertically spaced relation to the bottom wall 12 and supports thereon the work to be degreased, the grill 25 resting on L-shaped brackets FI3 and 73a mounted on the inside of main tank 10. The grill 25, it will be noted, is adapted to permit the passage therethrough of solvent vapors and may be easily and readily removed for cleaning purposes.

Flanges 26 are provided at the open upper end of the housing 10 at four sides thereof and are adapted to support thereon a at cover, not shown.

The side tank 11 includes a top wall 28, which may be inclined as shown, and a bottom wall 29, which may also be inclined as shown. The bottom wall 29 of side tank 11 is provided with an opening 30 which communicates with the bottom -of main tank 10 by means of a U-shaped pipe line 31, a valve 32 provided in the latter controlling the ow of solvent from the storage tank 11 into the main tank 10.

The pipe line 31 includes a T 80 at one corner thereof, the T being provided with a removable plug 81. Thus, when it is desired to lill tank 10, the valve 32 is closed and the plug 81 removed, whereupon the tank may be fed by gravity through T 80, as will be obvious.

The front wall 33 of the main tank 10 extends downwardly and terminates at the top of the side tank top wall 28 (Figs. 1 and 3) and starts again extending downwardly at the bottom wall 29, permitting solvent vapors from the bottom of main tank 10 to pass into the side or storage tank 11 below the top wall 28 thereof. The top portion of the storage tank 11 is sealed oit from the main bottom portion thereof by means of a back wall 34 (aligned vertically with the front wall 33 of main tank 10) and a drain plate 35. The drain plate 35 consists of a downwardly and outwardly inclined plate 36 (Figs. 1 and 3), and axdownwardly and inwardly infour sides of the apparatus just below the top wall 28 i of the side. tankwlLthe cooling jacket 42 being provided anhinlet.43.connected toV a suitable source of coolli waterfnot'shownf baiile or darn 44 cl oses o the 'eoolingw`42fat the corner thereof `adjacent the in fleifilj forging 'the 9online linnifl in' llnw .in the .direction An imprinted, .more nQinPnCt-.nndnendily ,removable 1 fsnlensingnnillis. Provided nndfgnnsists Qi cnntinnnns Ycopper tubingftS located directly above plate 3 6 (Fig.

3). Theinletof tubing 45 is connected to an inlet 45a provided in the end wall of -side ltank 11 by means of a union 46, the outlet of tubing 45being connected simlilarly to'an outlet 46a, provided in the end wall of side 1 .tank i11 above jacket 42 by means of a union 46 b.

t Thusby simply disconnecting the unions 4,6 and 46b thevcoil 45rnay be readilyrremoved through the open top voftank 10 forpurposes of cleaning and replacement.

The successive layers of coil are retained in proper l spaced relation to each other by means ofa spacer element 75 (Figs. 5 and 6) madeup of a vertical plate 76 and vertically spaced shelves 77 adapted to iit between successive layers of coil 45. This spacing'is important :for complete circulation of the `vapors through the coil ,and maximum eiiciencyof the condenser coil.

. An outlet 78 provided on the side of dam 44 remote from inlet 43 is connected to the inlet 45a of coil 45 by suitable piping 79 the latter including a pipe union 82. The Youtlet 46a of coil 45 is connected to a drain or sewer by suitable piping, not shown. Thus, the cooling `water will enter inlet 43 and flow completely around the apparatus before leaving through outlet 78, from where it enters the coil 45 to'leave by outlety 46a.

e One end wall of side tank 11 is provided with a large square opening 83 (Fig. 7) surrounded bya Aanged member 84, the member 84 being provided with spaced `bolt openings 85. A removable Vrectangular stainless steel plate 47 is mounted across. opening 83 and secured `to flanged member 84 by means of bolts 48.

` The inner vface of plate 47 mounts a stainless steel pump sump 49, a pump 50 beingy suitably mounted on the outer vface of the Vplate47'and including an elec- =tric mo tor 5 1 for driving the same, i Y

i stainless steel water separator52 v'located'within one corner ofthe pump sump 49fbelowY the nipple vthe separator S2 being provided withabocli 5 3 inounted in the outer face of plate 47 -for removing the separated water.

` yA sight level gauge 55 is mounted on the outer face of .plate 47 alongside the pump'Sil.n y' y `V i A Vertical pipe 57 is secured to the outer 'face of, the cooling jacket 42 by meansof a bracket 5 8, th'efbottom of vertical pipe 57 being connected to the outlet pipe 59 of pump 50 by means of an elbow 60. A pipe union 91 is provided in pipe 59 and permits the ready disconnection of pump 50 and pipe 57 when the pump 'is removed frorn tank 11. The top of pipe 5,7 is connected l-to an adaptor 61 by means of an elbow 62, -the adaptor 61' being connected to eXible tubing 6 3 terminating in a hollowihandle portion 64Yto'which is connected a rigid Itubingl65 provided at its outer end with va nozzle'66.

:The nozz`1e 66gwill\normally be employed 1to spray-the 4 top of the work being degreased, the pump 50 supplying solvent thereto under'prjessure. A temperature gauge 67 fis provided, the temperature gauge 67 communicating with the interior of the bottomr of tank 10 by means of a line 69.

A control box 70 is mountedabove the cooling jacket 42 near one corner of the apparatus and contains a switch, not shown, connectedin-the circuit of the motor Slby means of the line 7,1- Cnnipleinentnfy .ninlennd l'female plugs (86a and 86' are providedlin line 7l1'. 'lfhe control box 70 also includes .arlin'e 72,'.entering thetop of the side tank 1'1 and terminating in a temperature bulb, not shown, for controlling the level of the vapor withinv the main vtank-10in a manner wellv'known to those skilled inthe-art.

In operation, with the valve 32 open, the boiling sump of the main tank 10 is filled with a cleaning solvent, for example, tr.inlilnrntliylfnic,A np .to Ythe removable ;gr ill;25 .Slnnnils then nnpnlind iliinnnh .inlft '254 nf ,itin-Steam jacket, whereupon the generated .solvent ,vapors ,will c rise ltntnrniil Point 0f the' Cnndensingnnil-45 :(nnd the. Snr- ;rnnnding channel .inclini 4.2). 'The -snlvnnt condensate titers. nino. the .dininplntn .36 i nlnd-llnwsintn wenigen@ @rater 52 tlnlnnah ,drain nire :4.1.- Iliis gnnndensntnfnlls Awinter integraler. 5.2 ...ninna-.S ever; intnpnnlnsnnip. 49- yThis solvent .nnnlnnsntg than. fills -gnjrnp 'snmp :49 and .ller/S :Drenthe baille -9;L2intn thnlstorage tank 11.v With rali/,e ,32 nnen. the rnnilnnsate .will .then Yflow :back to nain tank 1.0 finalisti return line. nl.Y Thus, ,solvent placed in the boiling sump is vaporized, the vapors com- Iletgly ,filling the degreasing tank. to the level of the ,-Spnilgnninaigil .45- Water circulatingy through the con- ;-den'sins coil 14,5. at a temperature below the .vapory temperature causes the hot vapors to condense on the coil, lc :ontrolling they height of the Vapor-level.

Ine vapors condense vas clean solvent whichdrips :from the coil45 fto the pitchedplate 36 ,andf then vows into the water separator 52. Any wateriintroduced into the tank `during the degreasing ,operation is .thus .removed .gf-romthe solvent. To remove.y this water, it is only: neces- Vsary-to open the .cock 53 to `.permit'the water to drain out.

From the .water separator V52, ythe clean solvent Hows into the purnpisump 49 whichV-when `full, overflowsinto .the storagetank l'land thenrreturns to the boiling sump of the degreaser, completing the solvent cycle.

-yTo reclaim ordistillgthe dirty solvent, it is only neces- .sary to closevalve 32-in the solvent returnlinel, while -the degreaser is operating, ythus ytrapping the clean solventdn the storage tank 1-1. 'Y

When lthe main tank 10 is to be emptied for cleaning ipurposes,the valve 32 is'closed and 'the condensate is trappedin the storage tank 11. -The 'remainingsludge *.is'c'le'aned out ofthe bottomo the maintankll) through the removable clean out door 14. l A i' Y j l RecycledA pure solvent will` be=supplied under pressure yby'the'fpurnpSTl') to'the no2-zie 66 tot ye-d onto the Atop ofthework. u u" i' By iranienne llinbglts. -fl ,.n.nd-sl.i.snnnefing ,tbs-ripe union 91 and male and'female Vplugs 8 6`as'anl 8 6, it will bn `nnnntent that. the niet@ Uninybn ,nnnily and readily 'removed from the anged member 8,4,"carrying along .with :it-.ihnrnmp 50,.-nnn1n-fsnnin42nnil sannrntnn as a unit for conveniencein repnili g-and cleaning .these .nails-V Tliis fnnsnnnlinn nlsnfpnrniits easy n nd ready access to the interior Qf-storage tanki 1,1- -forrinspectionand cleaning. It will be lnoted that the pipe 'union-91 and male and female plugsgaifand 86;in lines 59 and 7 1, respectively, facilitatev the .disconnection of purnp 5l) rornpipe 5 7 andgcontrolbox when the plate 47` is removed as `described above. Then. thepump 50, isurnpe49'; .and separatonl52, which '.areg fsorrned-v of stainless-steel, smaiy... .bez quickly. rem'ovLed laaemnit-.Whemdesi-red, and-.replaeduby aalnewisuphfunit with a minimum of effort, as can the condenser coil 45 by means of pipe unions 46 and 46b.

It should now be apparent that there has been provided a vapor spray degreaser having an unrestricted work area and wherein an improvided, more compact and readily removable condensing coil has been provided in offset relation to the tank proper to avoid damaging of the coil by insertion and removal of the work. It should also be apparent that there has been providedan improved vapor spray degreaser of the above type having a pump sump and water separator located below the odset condenser coil, the pump sump, pump and water separator being readily .and easily removed as a unit.

While various changes may be made in the detail construction, it shall be understood that such changes shall be within the spirit and scope of the present invention as dened by the appended claims.

What is claimed as new is:

l. In a degreaser, a main tank having unobstructed side walls and an eopen top, a side tank oiset from said main tank, condenser means atthe top of said side tank, partition,i means sealing oi said side tank below said condenser means from said main tank, said partition means including a drain plate below said condenser means, water separator means within said side tank below s'aid drain plate, said drain plate opening on to said water separator means, pipe means connecting said side tank with said main tank, a removable pump sump within said side tank, said water separator means being mounted within said sump and removable therewith, pump means mounted on the outer face of the external end of said sump and removable therewith, and spray means releasably connected to said pump means.

2. In a degreaser, a main tank having unobstructed side walls and an open top, a side tank oset from said main tank, condenser means at the top of said side tank, partition means sealing olf said side tank below said condenser means from said main tank, said partition means including a drain plate below said condenser means, water separator means within said side tank below said drain plate, said drain plate opening on to said Water separator means, pipe means connecting said side tank with said main tank, an external cooling jacket extending around the outside of said main and side tanks, an inlet in said jacket, means for supplying cooling lluid to said inlet, and an outlet in said jacket connected to said condenser means.

3. In a degreaser, a main tank having unobstructed side walls and an open top, a side tank offset from said main tank, condenser means at the top of said side tank, partition means sealing off said side tank below said condenser means from said main tank, said partition means including a drain plate below said condenser means, water separator means within said side tank below said drain plate, said drain plate opening on to said water separator means, pipe means connecting said side tank with said main tank, an external cooling jacket extending around the outside of said main and side tanks, an inlet in said jacket, means for supplying cooling iluid to said inlet, an outlet in said jacket connected to said condenser means, said cooling jacket being substantially aligned horizontally with said condenser means and including a closed internal wall, said jacket inlet being adjacent one side of said wall, said jacket outlet being adjacent the other side of said wall.

4. In a degreaser, a main tank having unobstructed side walls and an open top, a side tank offset from said main tank, condenser means at the top of said side tank, partition means sealing oi said side tank below said condenser means from said main tank, said partition means including a drain plate below said condenser means, water separator means withinv said side tank below said drain plate, said drain plate opening on to said water separator means, pipe means connecting said side tank with said-main tank, an external cooling jacket Cil extending around the outside of said main and side tanks; an inlet in said jacket, means for supplying cooling fluid to said inlet, an outlet in said jacket connected to said condenser means, said condenser means comprising a removable, continuous coilof vtubing mounted above said drain plate, the inlet of said tubing being releasably connected to said cooling jacket outlet.

5. In a degreaser, a main tank having unobstructed side walls and an open top, a side tank olset from said main tank, condenser means at the top of saidside tank, partition means sealing olf said side tank below said condenser means from said main tank, said partition means including a drain plate. below said condenser means, water separator means within said side tank below said drain plate, said drain plate opening on to said water separator means, pipe means connecting said side tank with said main tank, a removable pump sump within said side tank, said water separator means being mounted within said sump and removable therewith, pump means mounted on the outer face of the external end of said sump and removable therewith, spray means releasably connected to said pump means, said pump means, pump sump and water separator means being formed of stainless steel.

6. In a degreaser, a main tank having unobstructed side walls and an open top, a side tank offset from said main tank, condenser means at the top of said side tank, said condenser means including tubing substantially coextensive with the width of said side tank, partition means sealing off said side tank below from said main tank, said partition means including va drain plate below said condenser means, water separator means within said side tank below said drain plate, said drain plate opening on to said water separator means, pipe means connecting said side tank with said main tank, said partition means comprising a substantially vertical wall separating said side and main tanks, the top edge of said wall terminating below said condenser means, said drain plate comprising an outwardly and downwardly inclined plate extending from end to end of said side tank, said condenser means being disposed directly above said outwardly and downwardly inclined plate, the outer longitudinal edge of said plate being secured to the front wall of said side tank, and an inwardly and downwardly sloping plate connecting the inner longitudinal edge of said rst plate with the top edge of said wall.

7. In a degreaser, a main tank having unobstructed side walls and an open top, a side tank offset from said main tank, condenser means at the top of said side tank, partition means sealing otfsaid side tank below said condenser means from said main tank, said partition means 'including' a drain plate below said condenser means, water separator means within said side tank below said drain plate, said drain plate opening onto said water separator means, pipe means connecting said side' tank with said main tank, a removable pump ysump within said side tank, said water separator means being mounted within said sump and removable therewith, pump means mounted on the outer face of the external end yof said sump and removable therewith, spray means releasably connected to said pump means, and a stop cock alongside said pump means, said cock being connected to said separator means.

8. In a degreaser as in claim 2 whereinA said main tank includes a downwardly sloping bottom wall, and a clean-out door removably mounted at the bottom of said main tank adjacent the lowermost edge of said bottom wall.

9. In a degreaser as in claim 2, work supporting means including horizontally aligned, substantially L-shaped brackets mounted on the inner faces of said main tank, and a removable grill supported at its edges on lsaid brackets.

10. In a degreaser, a main tank having unobstructed side? waits: anni an: open top; aside tank psetr from said ia tank; c'on'tl'esel means" al: the top of s aid Side? tank, Ipartition rn'eanslv sealing orafi said side tank-,below said'V condenser' means from said main tank, s'aid partition means including a drain plate below said condenser means; watersepar-ato'r means within said's'ide tank below said drain plate, saiddrain plate openi'izlg'v on to said wat'e'rseparator means, and pipe means' connecting said s'idetanlc with said main' tank, said side tank at one end'j havingv alarge openingY belowI said condenser means, a nang'e'di members'urrounding said opening on the outside of saidrsidetank,A a lplate adapted to close said Yopeningdislios'edacrosslsaid' hanged member, releasable nieansfo'rf securing said plate to 'said' ang'ed member, av punijp sump mounted on the inner fa'c'e of said plate and adaptedY tov Vp'a'ss through said opening, said waters'epa'rator'neans being-'mounted within said pump sump, pum'"rnersmountedntlie outer face of said plate and Sprayniean's l'eas'ably connected to sa'id pump means.l

`lll. Iria-degasena main tank havingunobstructed side`v walls andan open top, a side tank onset lfrom said niaintank, condenser means at-` the top of said side tank, partition r'neans sealing on said side tank below said condenser means from said main tank, said partitionmeans including a drain plate below said condenser means, water separator means within said side' tank below said drain plate, said drainplate' opening on to said water separator means, pipe means connecting said side tank with said main tank, said condenser means including a vertically disposed helically Wound continuous coil of tubing extending substantially the full horizontal dimension of said side tank, an outlet and inlet mounted in the end wall ofsaid side tank, and meansffor releasably connecting the inlet and outlet of said tubing' to said inlet and outlet.

I12. In ade'greaser, a main tank' having unobstructed side walls andl an open top; a side tank onset from said main tank, condenser means at the top of said side tank, partition'r'nea'ns sealing off said side tank below said condenser rr'ieans from said main tank, said partition means including a drain plate below said condenser means, water separator means within said sid tank below said drain plate, said drain' plate opening on tosaid Water separator means, pipe means connecting said side tank with said main tank', said condenser means comprising a continuous coil-of tubing, an outlet and inlet mounted in an' 'endv wall' of connecting the inlet and outlet of said tubing to said inlet and outlet, and a spacer element mounted on an end wll'of said side tanky adapted to retain the superimposed layers of said tubing in proper spaced relation, said spacer element comprising' a vertical plate substantially equal in length to the height of said tubing, and vertically spaced, substantially parallel shelves mounted on nefac'e' ofV said' plate, adapted to tit between a pair of superimposed layers of said' tubi-ng.l

13.- In adegreaser, la main tank having unobstructed walls, a side tank offset from said main tank, condenser' means substantially at the top of said side tank, said condenser means including a vertically disposed helically yWound coil ottubing extending substantially the full horizontal dimension of said side tank, water separator means within said'side tank, a drain plate below said condenser means opening into said water separatlng means, parti- 'tion means separating said main and side tanks, the top of which terminates at said drain plate.

14. A degreaser in accordance with claim 13, wherein :said partition means comprises a substantially vertical tank.. I

each of said shelves being said side tank, and means forA releasably 16; 1111 au: degrease'rf i111 aceerdancef with claim 135 fluid connecting means connecting' salidwater" separator' with s'aidfma'in tank. Y

17. Af degreaser in accordance Vwith claim '154; wherein th'e drainJ plate includesA an outwardlyand downwardly inclined plate extending from end to end of said side p ate.

18. Inf ade'greaser, a main tankga side tank otfsetfrom said main tank,.condenser means atiy the-top of said side tank, a removable pumpsum'pwithin sa'idiside tank, water separating means within' saidLs'u-mp' belowsaid condenser removable therewith, pump means mounted-on the outer face of the external endof saidfsurnpf andremovable therewith, .spray means releasably 'connected to saidpump means and pipe means connecting said side tankl with said main tank.

19. In a degreaser, a maini tankhaving unobstructed side walls and an open top, a side tank offset rfrom said main tank, condenser means atfthe top* oisaidside tank, means within said side'tank to supportV said condenser means, said condenser means including a vertically disposed helicallywound lcontinuous coil of tubing extend# ing substantially the full horizontal dimension otsaid side tank'fan inlet-land outlet connection mounted in one end wall of 'said' side tank andk means for releasably connecting the inlet and outlet of4 said tubing tosaid inlet and outlet connection, respectively.

20. In a degreaser asin claim 19, wherein said tubing support means includes a spacer element mounted on an end wall ofv saidside tank adapted-to retain the superimposed layers of saidtubing in proper spaced relationship, said spacer element comprising a vertical plate substantially equal in' length to the height of said tubing, and vertically spaced, substantially parallel shelves mounted on one face of said plate each of saidv shelves being ladapted to tit-'between a pair of superimposed layers of said tubing.-

2l. In a degreaser as in claim 20, wherein a portion of said vertically disposed helical coil is in the vapor zone of said degreaser and aportionfof said helical coil is disposedin the free board zone of said degreaser.

22. In a degreaser, a vertically elongated main tank, means to support a'work piece in-said tank in the loweiportion thereof, said tank being unobstructed thereabove,

v wall means defining alaterally offset chamber in communication with said main tank and a partition wall separating a portion thereof from said main tank, closed conduit means in said chamber extending above said partition wall to circulate a condensing uid, said partition wall together with said wall means also defining a condensate separating chamber below' said conduit means, and drain means connecting the portion of said otset chamber containingthe closed conduit means to said condensate sep arating Chambon-,water separating means within said separatingfchamberd connecting said drain means and said separating chamber, and saidconduit means connecting said main tank-'and-said separating` chamber.

23. Adegreaser according to claim 22 wherein said separating means includes asumpl portion and a pump arranged to suck liquid from saidsump;

24. A -degreaser according to claim 22 wherein said water separating-means is'removable.

25. In a degieas'cr, a vertically elongated main tank, wall means de-ning a' laterally olset chamber in cornmunication with said main tank including a--partition separatingsaidtank and a portion of said chamber, condenser means in the upper portion of said offset chamber extending above'thetop of said partition, said Wall means together with said; partition defining a condensate separating chamber belowfsaid condenser means, drain means connecting the portion of said offset chamber' containing the condenser means to said condensate separating charnand conduit means connecting said main tank and said separating chamber.

References Cited in the le of this patent UNITED STATES PATENTS Koch Dec. 12, 1933 Booth et a1. Sept. 11, 1934 Johnsnn etal Feb. 15, 1938 Dinley May 10, 1938 10 Levine Apr. 11, 1939 10 Warrington June 13, 1939 Phillips et a1 Aug. 26, 1941 Koch Dec. 15, 1942 Phillips et al May 16, 1944 Heifenstein Feb. 6, 1945 Jaffa May 25, 1948 Boyen Mar. 1, 1955 FOREIGN PATENTS Great Britain Oct. 12, 1933 Great Britain Mar. 19, 1936