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Publication numberUS745519 A
Publication typeGrant
Publication dateDec 1, 1903
Filing dateMar 31, 1902
Priority dateSep 3, 1901
Publication numberUS 745519 A, US 745519A, US-A-745519, US745519 A, US745519A
InventorsEugene Pravicha, Edouard Douillet
Original AssigneeEugene Pravicha, Edouard Douillet
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Apparatus for separating oil from water.
US 745519 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)




E0 MODEL No. 745,519; PATENTBD DEO.1,1908.




WZ/W No. #451,519. 'PATEN'TED DEG. 1, 1903 E'. PRAVIGHA &.'E. DOUILLET.




no MODEL- fizz 812107";

UNITED STATES Patented December 1, 1903.



- Felines. j


srncnucazrron forming pm of Letters recent No. 745,519, dated December 1, 1903.

Original application filed September 3,1901, Serial No. 74,196. Divided and this application filed March 31, 1902. Serial No.100fl58. (No model.)

- To ctlZ whom it 'may concern:

Beit known that we,EUGiiNE PRAVICHA and EDOUARD DOUILLET, citizens of, the French Republic, and residents 'of La Garenne-Colombes, France, have invented certain new and useful Improvements in Apparatus for Separating Oil from Water, of which the following is a specification, this application be.

ing a division of our prior United States ap 1o plication, filed September3,l90l','under Serial In practice the oils'thrown bymeans of the oileronsyringe upon the working parts of marine and other-engines, as well as oils and n 5 fatty materials which having passed through the lubricators escape after having lubricated the working parts, are for the mostpart lost.

.These'fatty substances aboard. ship necessarily fall to' the bottom of the engiue compartment, where there is already some sea-Water.

On locomotives they fall upon the track. In

manufacturing machines they collect at the bottom thereof.

0n steamships jets of sea-water are often :5 played upon the hearings to prevent them from becoming hot, and this water .forms,

with the lubricating substance, a mixture from which up to the present it has been im is efiected by means of devices working either. in the open air or under pressure hot or cold,

0 so as to collect the oils and fatty matters and also to purify the feed-water. The devices operating to this end can be used for any operations having as an objectthecollecting of oils and fatty matters. On board steamers a special or an ordinary pump can be used.

For example, that serving to empty the engine-compartment can also be used to convey the mixture into these separators.

In the accompanying drawings, Figure 1 is asectional. diagram of the entire apparatus embodying this invention. Fig. 1 isan enlarged detail. F.ig. -2 is a vertical section of a fractional part of a separator. Fig. '3 is a vertical section of thepther part of the same separator. Fig. dis a vertical section of another formof apparatus. v

The device shown in Figs. 2-and 3is in two parts. The first part consistsof a pump P (shown in Fig.1) and furnished with a special. suction device, Fig. 2. This suction device floatsin the water to be treated, so-as to only permitthe pump to drawfrom the upper portion of the liquid'mass. The floats maintain- .ing the device at the. surface of the liquid 1 may be formed of hollow cylinders or composed of a series of' hollow metallic spheres," Fig. 2, as shownat 14 in Fig. 2- 1 is a. flexible metal tube connected to the pump. The.

fatty matters gatheringon the surface around the float and entering at 2 penetrate to cham- 7o her 3, whence they'aresucked up by. the pump 'P and forced through'pipe 4 into a separating-tank A.- This tank is divided by the partition 5 into'two compartments 7 and 8, communicating by means of a tube 6,. through which the water. passes into the tank 7, thus forming, with the tank 8, communi-.

eating vessels but with thispeculiarity, that the bottomo the compartment 8 is in communieation with the upper portion of com-.

partme'nt 7. From the compartment 7, which. is furnished with an overflow-pipe 9, the water separated from the fatty matters runs oif. These fatty substances,'owihg to dimer-once of density, float on the surface of the water in the compartment 8, and thence pass by spout 10 into a receptacle 11, where they are stored entirely apartfrom the water. His 3. small gage for regulating the escape;' This gage may be adjusted up and down by means of set-screws 12 to raise or lower the fluid-level according to the depth of. the fatty material floating upon the surface of the :water. 13 is another overflow, principally used in marine engines. In factories the oils 9'5 and fatty matters which are usually allowed "to run into the drain can be collected by the use of these'collecting-tanks A placed in the track of this escape. These tanks will separate theliquids, (oil, water, and fatty I00 matters,) gathering to one side the oils, while at the same time allowing the water to continue its course. On the other hand, in condensing-engines it will only be necessary to cause the condensation-water to pass without pressure into one-of these tanksA, so as to collect without expense the oils and fatty matters, which will have served to lubricate the inside of the steam-cylinders. At the same time the feed-water will have been freed from all fatty bodies, which constitute an element to say, that part which is least exposed 'to dis-' placement by the motions of the ship. Moreover, this overflow oscillates at a point situated on a level with the liquid, so that Whatever may be the movement of this liquid, the surface of which always tends to remain horizontal, the upper stop of the overflow wirll always follow the movement of the liquid without vertical displacement either upward or downward. For this purpose the tube 15 is furnished with a lead weight 16. The oil col lecting at the surface of the liquid, overflows at 17 to run off through 18 into barrels prepared for its reception. The regulating-screw l9, swivel-jointed to the top of the overflow 17, serves to adjust and hold said overflow in a suitable central position. The separation of the liquids takes place by the lawsof density. The water escapes at 20, the oil at 18.

The water, forced up by a pump as in the first-described device, enters the separatingtank of Fig. 4 through the tnbe 40. When passing from one compartment to the other, the water is obliged to pass through the small holes 41, made following the generating-line ofia tube 4.2, establishing communication between the said tanks. 7

Having fully described our invention,what

we claim, and desire to secure by Letters Patent,is-

1. Means for separating fatty substances from water, comprising a receptacle for the mingled fats andwater, an'oscilla'tory overflow for drawing ofl the fats from the surface of the Water, adjusting mechanism whereby said overflow is located about centrally of the surface area, and a conduit for drawing ofi the water from the bottom of the receptacle as the charge flows in at the top.

, 2. A tank for separating fatty substances from water, comprising a plurality of compartments, the first of which initially receives the mingled fats and water, conduits leading the water from each preceding compartment into the next succeeding, an'oscillatory overflow for leading the fats rising to the surface of the initial, compartment to a receptacle,

and means for holding said overflow about centrally of the liquid-surface area in said compartment, v

In, testimony .whe'reof we have hereunto 'set our hands in presence 'of two witnesses.





Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2533395 *Mar 22, 1945Dec 12, 1950Spencer Turbine CompanyMachine and process for separating liquid from sludge
US2624462 *Feb 10, 1950Jan 6, 1953Elmer R WilliamsApparatus for siphoning water from oil treating structure
US2658040 *Jul 29, 1950Nov 3, 1953Detroit Harvester CoApparatus for separating oil from coolant liquids
US2878944 *Feb 11, 1957Mar 24, 1959Elliot Barnes GeorgeAutomatic water remover for carburetors
US2891672 *Aug 10, 1955Jun 23, 1959Cornelis In T VeldShip for receiving, transporting, and separating immiscible liquids of different specific gravities
US2940594 *Aug 26, 1955Jun 14, 1960Binmore John MartinApparatus for separating oil from ballast water in tanks on board ship
US3027763 *Mar 11, 1957Apr 3, 1962Rolo Mfg CompanyMetering separator
US4048070 *Jun 3, 1976Sep 13, 1977Propp Carl FOil and waste water reception facility and process
US4844819 *Jun 3, 1988Jul 4, 1989Norman James MOil and water separator having plural nested tanks
US4915823 *Nov 14, 1988Apr 10, 1990Hall Thomas WAssembly for the separation of oil from water
US4938878 *Feb 16, 1988Jul 3, 1990Halltech Inc.Immiscible separating device
US5030342 *Jul 26, 1990Jul 9, 1991Ortega D Ignacio MInstallation for collecting oils and fuels spilled at sea
US5149434 *Feb 25, 1991Sep 22, 1992Saleam EssopGravity separator
US5236585 *Mar 4, 1992Aug 17, 1993Fink Ronald GOil accumulator
US5326469 *Sep 14, 1992Jul 5, 1994Zander Filter Systems, Inc.Method and apparatus for separating oil and water
US5560826 *Sep 16, 1994Oct 1, 1996Szereday; PalDevice for separating supernatant, in particular liquid pollutant, e.g. oil and the liquid, e.g. water
US5922064 *May 6, 1997Jul 13, 1999Gordon, Sr.; Ellison T.Oil and gas well separation apparatus
US6089381 *Jun 7, 1999Jul 18, 2000Gordon; EllisonOil and gas well separation apparatus
US6645387 *Feb 5, 2002Nov 11, 2003Evac International OySeparator device
US6824696 *Apr 24, 1998Nov 30, 2004Unisearch LimitedOil from water separator
US6951607 *Dec 5, 2002Oct 4, 2005Clark Joseph UseMobile pollution trap and method
US7021471 *May 6, 2003Apr 4, 2006Hamilton Welding CompanyDiffuser for an oil water separator system
US7331472 *Jun 7, 2005Feb 19, 2008Lisopharm AgMethod and apparatus for separation of a mixture of non-miscible liquids
US7364664 *Jul 24, 2002Apr 29, 2008Sharp Kabushiki KaishaBlocks off a portion of flow of liquid used in a flow process (e.g., plating solution for formimg a bump electrode), by using a partition plate whose lower end is in close contact with a bottom of a plating tank and whose upper end is at a position lower than a liquid surface
Cooperative ClassificationB01D17/0208