US463062A

US463062A - Apparatus for purifying oil

Info

Publication number: US463062A
Authority: US
Publication date: 1891-11-10
Anticipated expiration: 1908-11-10

Description

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0 0 e l Jv. J' LOWDEN 2Sheetvs Sheet 1 APPARATUS FOR 'PURIPYING OIL.

No. 463,062. Patented Nov. 10,1891.v

Mfbmm (No Model.) I l 2 Sheets-Sheet 2. J. J. LOWDBN. APPARATUS POR PURIPYING OIL.

No. 463,062. Patented Nov. 10,1891.

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UNITEio STATES PATENT OFFICE.

JAMES J. LOVDEN, OF EVERETT, ASSIGNOR OF ONE-HALF TO HENRY G. THOMAS, OF BOSTON, MASSACHUSETTS.

APPARATUS FOR PURIFYING OIL.

SPECIFICATION forming part of Letters Patent No. 463,062, dated November 10, 1891.

Application led April 13, 1891. Serial No. 388,691. (No model.)

To @ZZ whom it may concern.-

Be it known that I, JAMES J. LownEN, a citizen of the United States, residing at Everett, in the county of Middlesex and State of Massachusetts, have invented certain new and useful Improvements in Apparatus for Purifying Oil, of which the following, taken in connection with the accompanying drawings, is a specilication.

The object of my invention is to produce an apparatus for purifying oil, especially oil used for lubricating steam-cylinders and which has been separated from the exhaust-steam by an extractor or any oil containing' dirt or other impurities.

The invention consists ot' an apparatus in the upper portion of which the oil to be purified is placed and then passes down into a -compartment heated by a steam-coil, which causes the heavier particles to be released and fall to the bottom, the partly-cleansed oil then .passing through a pipe to a lower compartment, where it is washed by passing' through water in small drops, as hereinafter fully described, and pointed out in the claims.

Referring to the accompanying drawings, Figure l represents a-vertical section taken through the center of an oil-purifying apparatus'embodying my invention. Fig. 2 is a horizontal section taken on line x :o of Fig. l. Fig. 3 is a similar section taken on line y y of Fig. l. Fig. et is a vertical section through the sightfeed, drawn to a larger scale. Fig. 5 is a horizontal section taken on line .e of Fig. 4:.

The apparatus consists of a lower compartment or tank A and an upper tank B, formed so that the lower edge of the upper one lits snugly upon the upper edge of the lower one. The upper tank B is at its upper edgeformed with an inwardly and downwardly projecting flange h, upon which rests a flange c, formed on the upper edge of a tank or receptacle O, and upon the flange c rests ailange cl of the oil-receiving receptacle D. This receptacle is preferably of funnel shape, and it is at its lowest point provided with a grating D which acts as a strainer `and retains any large particles that may be in the oil. The bottom of the receptacle D is formed with three circular-downwardly-proj ectin g flanges E .F F', the

central one E of which is of conical form, as shown, so that as soon as the oil passes through the grating D it will readily fall down to the bottom oi' the tank C. In the space between the iianges F F is arranged a coil of pipe G, the inlet and outlet of which pass through the bottom of the tank C and out through the side of the tank B. By this coil the oil is heated to the desired temperature, so as to reduce its density and liberate the impurities, which then settle at the bottom of the tank O and when required are removed through a pipe H. Any gas that may be generated in this portion of the process escapes from between the iianges E F F through holes f g into the tank C and from thence by holes c into the tank B and through holes CZ out of the same.

The lower tank A is formed with a double bottom, the inner oneIbeing of funnel shape, so that the impurities taken from the oil in the process of washing will concentrate at the bottom, to be carried off by a pipe J. A short distance above the bottom the tank is divided by a circular partition K into two compartments L M, the central one L containing Water and the outer one M to receive the puritied oil, the Water being supplied* through a pipe N, down a central tube P, and through arms Q. The pipe N may also be connected to a steam-supply, so that when desired the water can be cut ott and steam admitted, sov as to blow all matter that has accumulated at the bottom of the compartment L out through the pipe J. Through the center of the tube P is passed a rod R, to the lower end of which are secured wings R and to the upper end is secured a bevelwheel S, in gear with a bevel-wheel T on a rod U, supported in suitable bearing V and passing out through the side of the tank A, its outer end being fitted with acrank--handle U', so that `by rotating the handle U the wings R are caused to rotate and stir up the impurities at the bottom of the tank and cause them to mix with the water, so as to iiow off through the pipe J.

In the compartment L is arranged a circular pipe V, provided with a series of teats or nipples w at its upper side and with a series of holes w at the lower side, through which IOO any impurities can be precipitated to the bottom of the tank. This pipe is by a pipe W connected to a sight-feed X, and a short distance above the pipe W is secured a hood Y, that is also provided with a series of teats or nipples w.

The sight-feed X is, as before stated, connected to the pipe W at its upper end, and its lower end is connected to the tank A, so that when in operation it will always be filled with water. To the lower end of the sightfeed is secured valve Z, which is by pipes 1 2 in communication with the tank C. At the upper end of the pipe l is secured a thermometer', by which the temperature of the oil in the tank C is indicated.

The lower portion of the sight-feed X, to which the valves Z is connected, is formed with a chamber 4 (see Fig. 4) by a partition 5, which latter is fitted with any desired number of teats or nipples w', that are of suffi# cient length to conduct the oil above the lower connection of the tank A. All these teats or nozzles are of the form shown-that is, of a tubular form contracted near the outlet, so that the oil is practically formed into drops before it leaves the teats. After the drop leaves the teats in the sight-feed it passes up through the water in the glass tube or cylinder 6 and accumulates in a body in the upper portion of chamber 7 of the sightfeed and then passes through the pipe NV to the circular pipe W, provided with teats w, as before described, from which it escapes and passes to a hood Y, also provided with teats fw.

S is a gage to indicate the level of the water and oil in the compartment L, and 9 is a cock for drawing off the purified oil.

The operation is as follows: The compartment L in tank A is supplied with water to the desired level, and steam is caused to. circulate through the coil G. The oil to be purified is now placed in the receptacle D and passed through the grating D and down thev pipe F into the tank C, where it isheated by the coil G, and when it has reached the desired height passes by the pipes 2 and l and through the valve Z to the compartment 4 of the sight-feed, where it is broken up and then passes up the teats or nipples w, from which it escapes in the form of drops and passes up through the water in the glass tube, thus being subjected to a Washing. It then passes into the pipe W to the circular pipe W, where it is again concentrated into a mass and again broken up and passes out through the teats ornipples w, and passing through the water in the tank is subjected to a second washing, and is then retained and concentrated by the hood Y and again broken up and passes out through the teats or nipples into thewater, and is thus subjected to a third washing as it passes through the water, upon the surface of which it rests until sufficient has accumulated, when it overflows into the compartment M, and can then be drawn off by the cock 9 in a purified state. The Water in the compartment L can be maintained at the desired temperature by admitting steam into the same through the pipes N R and arms Q, or a constant circulation of hot water may be maintained, if desired, in which case ,the impurities will be carried off as they are released by the pipe J; but if they are allowed to accumulate, then when it is'desired to remove them steam or water is admitted through the pipes N R and arms Q and the crank U is turned, which causes the impurities to be stirred up by the wings R and be carried otf by the steam or water through the pipe J. It will be seen that by the arrangement of partitions E F F when the oil is heated it is caused to circulate, and thus most of the heavier impurities are released and fall to thebottom of the tank C, and that by subjecting` the oil thus purified to be broken vup into drops and passed through water in the manner described all the lighter impurities are released, thus rendering the oil t for being again used for lubricating purposes, and by means of the sight-feed the action of the apparatus can .be seen, so that the supply and also the heat in the coil may be regulated as required.

YVhat I claim as my invention is- 1. An apparatus for purifying oil, consisting of two tanks or compartments arranged one above the other, the upper tank having a compartment to receive the oil to be purified, circular fianges on the bottom of said com` partment, a coil of pipe for heating the oil, a pipe leading from said tank to a sight-feed, a lower tank having two compartments, the inner one of which is fitted with a circular pipe provided with nipples and connected to the said sight-feed, and a hood provided with nipples and situated above the said circular pipe, all arranged and operated substantially as set forth.

2. In an apparatus for purifying oil, the combination, with the main purifying-chamber, of a sight-feed having a lower compartment into which the oil is admitted, an upper compartment for containing water, a partition separating said compartments, and two or more teats or nipples secured. in the partition, said nipples projecting above the waterinlet, substantially as set forth.

3. In an apparatus for purifying oil, the combination, with the main purifying-chamber, of a sight-feed divided by a transverse partition into an upper and a lower compartment, the lower compartment being in communication with the supply of oil, an inletpassage for water above the partition, and a series of teats or nipples secured in the partition and projecting above the level of the water-inlet, substantially as set forth.

4. In an apparatus for purifying oil, the combination, with the main purifying-chamber, of a sight-feed divided by a transverse IOC) IIO

partition having passages through it into an upper chamber containing water and a lower chamber, a supply-pipe for oil communicating with said lower chamber, and a valve for regulating the supply of oil, substantially as described.

5. In an apparatus for purifying oil, a tank heated bya steam-coil, in combination with a sight-feed, and a tank havinga central watercompartment, into which the oil is delivered through the said sight-feed, and a circular pipe having teats or nipples, substantially as set forth.

6. In combination with an apparatus for purifying oil, having a compartment contain ing water, into which the oil is admitted, and acircular pipe having a series of teats or nipples, whereby the oil is first concentrated and Vtitnesses:

CHAS. STEERE, EDWIN PLANTA.