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Publication numberUS473326 A
Publication typeGrant
Publication dateApr 19, 1892
Filing dateNov 16, 1891
Publication numberUS 473326 A, US 473326A, US-A-473326, US473326 A, US473326A
InventorsRudolph Metz
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
US 473326 A
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Description  (OCR text may contain errors)

(No Model.) 2 Sheets-Sheet 1.

. R. METZ.

OIL PURIFIBR: No. 473,326. Patented Apr. 19, 1892.



SPECIFICATION forming part of Letters Patent No. 473,326, dated April 19, 1892.

Application filed November 16, 1891. Serial No. 411,992. (No model.)

To all whom it may concern.-

Be it known that I, RUDOLPH METZ, of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented a new and Improved Oil-Purifier, of which the following is a full, clear, and exact description.

My invention relates to improvements in oil-purifiers such as are adapted to separate and purify oil from Waste material. In large factories, electric-light plants, rolling-mills,

and similar places a great deal of oil collects with waste material of various kinds; and the object of my invention is to produce a simple apparatus, by means of which this oil may be separated and saved, and, further, to provide an apparatus which may be easily cleaned out and will always hold the oil so that the purest may be drawn first.

To this end my invention consists in an oilpurifier, the construction of which will be hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar figures of reference indicate corresponding parts in all the views.

Figure 1 is a front elevation of the purifier. Fig. 2 is a broken vertical section of the same on the line 2 2 in Fig. 3. Fig. 3 is a sectional plan of the purifier. Fig. 4 is a detail side elevation of the oildrawing apparatus, a portion of the tank being shown in section on line 4 4 in Fig. 3. Fig. 5 is a broken vertical section on the line 5 5 in Fig. 3; and Fig. 6 is a detail perspective view of the guard for the strainer, which is arranged at the water-outlet.

The tank 10 is provided with a removable cover 11, and in the upper part of the tank is a hopper 12, which has a supporting-flange 13, which overlaps and rests upon the top 'flange of the tank, and in the lower portion of the hopper is a strainer 14, which separates the coarser waste products from the oil. The

hopper 14 has an inclined bottom opening, from the central portion of which is a depending pipe 15, and the pipe extends downward to a point near the bottom of the tank, where it terminates in branches 16, arranged to deliver around the central portion of the tank, and thus scatter the sediment which passes through the pipe 15, so that the outlet of the pipe is not choked.

The lower portion of the pipe 15 is intended to be immersed in water, as shown in Fig. 2,

and this portion of the pipe is surrounded by a coil of steam-pipe 17, which provides for heating the water and permitting the rapid separation of oil, and this coil connects with a steam-inlet pipe 18, having a controllingvalve 19, and it also connects with a suitable outlet steam-pipe 20.

The tank has a transverse horizontal portion 21, which forms its floor and which is arranged near the bottom of the tank, and beneath this is a chamber '22, which is provided with adoor 23 on the front portion of the tank, and in this chamber is a dirt-box 24, which receives the sediment from the tank and which is mounted on rollers, so that it may be easily pushed into and out of the chamber.

An opening 25 is produced centrally in the floor 21 of the tank, so that the dirt may be pushed downward through the same into the dirt-box, and this opening is normally kept closed by a common form of man-hole cover 26. In the back side of the tank, at a point just above the floor 21, is an opening 27, which is kept closed by a cover 28, and when the tank is to be cleaned out the water and oil are withdrawn, the man-hole 25 opened, the cover 28 removed from the hole 27, and then with apoker or scraper the dirt in the bottom of the tank maybe pushed downward into the dirt-box 24 and conveniently emptied.

The tank is provided on one side with an overflow-cock 29, which opens from the tank, and this marks the water-line of the tank, as shown in Fig. 2. The tank has also an outlet spigot or faucet 30, which is arranged just above the fioor21 and on the back side of the tank, and this faucet is prevented from being choked by a curved sieve or strainer 31, which fits against a ring 32, as shown in Figs. 3 and 5, and the strainer is protected by a guard 33, which is similar in shape to the shape of the strainerand which has on its outer edge near the top an ear 34, which is pivoted to a similar car on the wall of thetank. Aforked rod is also pivoted to ears on the inner portion of the guard, and this rod extends upward through a sleeve 36 in the hopper 12 and terminates in a handle 35*, by means of which it may be raised and lowered, and when the rod is moved it will be seen that the guard 33 will be also moved. The upper end of the rod 35 and the sleeve 36, which receives the red, are perforated, as shown at 37, and a pin 38, which is chained to the sleeve, may be thrust through the perforations in the sleeve and rod, and the rod and the guard connected therewith may thus be held in either a raised or lowered position. The water-inlet pipe 39 enters at a point adjacent to the strainer 81, and it is shaped so as to extend nearly parallel with the strainer and is perforated, as shown at 41 in Figs. 3 and 5, so that the water which enters the tank will is sue from the inlet-pipe in a series of jets which, striking against the sieve 81, will thoroughly wash the sieve, so that it will perform its work satisfactorily.

Above the water-line of the tank and secured to the wall of the tank is a pipe 42, which is arranged vertically within the tank, having both ends closed, and is provided with a series of inlet-pipes 4-3, which are placed one above another and at regular distances apart, and each of these branch pipes 43 is controlled by a cock it. At the lower end of the pipe 42 is a faucet l5,"by means of which the oil may be withdrawn. The cocks ll are normally kept closed.

Adjacent to the pipe 42, but on the outer wall of the tank, is an oil-gage 46, which is similar to the water-gage of a steam-boiler and is of the usual construction, and at one side of the oil-gage is an indicator 47, which is numbered to correspond with the number of cocks il, and the cocks are each numbered, so that by turning a cock of a certain number the oil willbe allowed to enter the pipe 42 at a point the height of which will appear on the indicator and oil-gage, which height will correspond with the height of the cock and branch pipe.

It will be understood that the pipe 42 may be provided with any desired number of inlets and it will be seen that the indicator must have the same numbers as the cocks of the pipes 13. It will be seen, too, that these numbers may be arranged so that they will also indicate the amount of oil held in the tank. Below the water-level is an ordinary water-gage 48, which indicates the height of water in the tank.

The operation of the apparatus is as follows: e will suppose that the tank is empty and is to be prepared for use. In this case the faucet 30 is closed, the cook or faucet 29 opened, and the water allowed to enter the tank through the pipe 39. hen the water rises to the height of the cock 29, it will have reached its proper height and the inlet is then closed and the cock 2!) is also closed. The steam is then turned into the coil 17, so as to heat the water, and the steam is left on, so that the water will be always hot. The waste material containing oil is thrown in to the hopper 12, and the coarser portions thereof will be held above the strainer 14, while the sediment and oil will trickle down through the pipe 15 into the warm waterin the lower portion of the tank. 'lheheavier portions of the sediment will immediately settle to the bottom, while the oil and some of the lighter portions of the sediment will rise to the top of the water, as indicated in Fig. 2. It will be understood that the finer sediment in the oil will not readily separate therefrom, so that the pure oil will be that which is at the top surface, and it will be seen that by means of the drawing apparatus described the oil may be always drawn from the top, and by reference to the oil-gage the position of the oil may always be definitely ascertained and a cock ll and the faucet 45 opened, so as to permit the better quality of oil to flow from the tank.

From the foregoing description it will be seen that provision is made for the rapid settling of oil, that the apparatus is constructed so that it may be conveniently cleaned, and that the very nicest quality of oil may be always drawn from the tank.

I am aware that it is not new to use a tank having water therein, a heating apparatus to heat the water, and a top hopper delivering into the water, and I do not claim these features as my invention.

Having thus fully described my invention, I claim as new and desire to secure byLetters Patent- 1. An oil-purifier comprising a main tank having an inlet-pipe at the bottom arranged to deliver into the tank in jets, a strainer adapted to extend over the inlet-pipe, an outlet-pipe leading from the tank from within the strainer, an overflow-pipe opening through the side of the tank, ahopper arranged in the upper portion of the tank, said hopper having a strainer therein, a pipe leading downward from the hopper into the tank-bottom, said pipe terminating at its lower ends in divergin g branch pipes, a steam-coil arranged within the boiler and around the hopper-pipe, and a plurality of oil-discharge cocks arranged one above the other in the side of the tank, sub stantially as described. i

2. The combination, with the main tank having an oil-separating apparatus therein, of a pipe held vertically on the side of the tank and opposite the oil-carrying portion of the tank, said pipe being closed at both ends, a series of cock-controlled inlets opening from the oil-carrying portion of the tank and into the vertical pipe, an outlet-faucet at the bottom of the pipe, and a registering-gage connected with the oil-carrying portion of the tank and arranged at one side of the vertical pipe-cocks, substantially as described.

3. The combination, with the tank, of the inlet-pipe having its inner end curved and perforated, a strainer arranged to extend over the curved end of the pipe, a guard held to swing on suitable supports and to cover the. strainer, and a vertical handle secured to the guard and extending upward through the tank, substantially as described.

RUDOLPH M E ,Z. \Vitnesses:


Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US4038186 *Jan 19, 1976Jul 26, 1977Texaco Inc.Carbon decanter
Cooperative ClassificationB01D21/02