USRE3003E - Improvement in stills for - Google Patents

Description

UNITED STATES PATENT OEEIGE.

cnAnEEs LocK'nAnT AND JOHN GEAorE, or riTTsnUncf,v rENNsrLvANrA.

' lMPROVEMENT lN'STlLLS FOR VPETROLE.UN\,I&C.

Iatent No. 40,63%,date'd November 17, 1863; Reissue No. 3,003, dated v Specification forming part of Letters June 23, 1868.

DrvrsIoN B.

known as benzole or naphtha The next product of the still is burning-oil, known in commerce as carbon oil,77 coal oil,7 (Ste. This burning-oil should have a speciiie gravity o f about forty-five degrees of the hydrometer, and 'for a fire-test should be susceptible of being heated to about 115O Fahrenheit without igniting or flashing on the application of a lighted match. Oil having these qualities is considered a goed article of burning oil, and will always bring the highest market price. New, one of the greatest difliculties-in producing such oil is the factv that, during the process of distilling petroleum, paraftine is carried over with the product of distillation, and this paraffine gives the oil a yellow cast, and causes the oil when heated to throw off a very inflammable and explosive gas'7 hence such o'l is considered dangerous, and is of less value in the'market as an article of trade.

New, the object of our invention is to overcome this difficulty in the process of distilling petroleum, and enab e the refiner, by avery simple' device, to produce a good, safe, and desirable burning-oil. This we accomplish by the use of pipes c and f and their valves g and h, arranged with relation to the still in the manner substantially as represented in the accompanying drawings, or by the equivalent of said pipes and valves.

When the still A is filled the desired deee with oil, the valve. g of ,thepipe f is closed, and thevalve h of the pipes e is' opened, and the vapor from the still passes up through the ipe e and down into pipe f, and from it to the condenser. The distilling is carried on wi the vapor passing through pipe cuntil it is observed bythe operator that the iiow of oil from the` condenser is diminishing; then the, valve h of pipe e is clo'sed, ,and the valve g is opened, which will allow the vapor to pass direct Alythrough the pipe f to the condenser. By thus changingv the course of the vapor through the pipes, the flow of oil from the condenser will' be kept uniform in quantity, other. things in the distilhng process being equal. When the operator notices a 'change in the color of the oil flowing from the condenser that is to say, the oil changing from a white To all whom it may concern:

Be it known that we, OnAnLEs LocknAnT and JOHN GRACIE, of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Stills for etroleum; and we do hereby Y de clare that the following is a full and exact description thereof, reference being had to the `accompanying drawings, and to the letters of reference marked thereon.

The nature of our invention consists in so constructing that part of the still (ordinarily called the goose-neck) to which the condenser is attached, that the vapor, as it is evolved from the oil, maybe carried 0E from the 'still at diiferent heights, for the purpose hereinafter set forth.

To enable others skilled in the art of constructing stills for the distillation of petroleum to makeand use our invention, we will proceed to describe its construction and operation.

In the accompanying drawings, which form part of our specification, A represents an ordinary still for the distillation cf petroleum,

rovided with our improvement for carrying` olf the vapor from the still at different heights. rllhe device we use for this purpose consists in the use of pipes 'e and f, provided with valves h and g. rlhey form and the relation that the pipes e and f bear to each other, and the arrangement ofthe valves h and g, are clearly shown in the accompanying drawings. The' lower end of the pipe o is securedby any known means tothe top Cof thestill, and the condenser is attached to the outer end of the pipe The top C of the still is provided with a man-hole opening, (marked D,)for the purpose of gaining access to the interiorof the still for cleaning, repairing, and other purpose which may be necssary. To the center of the bottom B ofthe still A is attached a pipe, as indicated by the dotted lines X. This pipe is used for the purpose of carrying ott' heavy oil, tarry matter, or the refuse of distillation.

The furnacelfor the still maybe constructed in any of the known forms and of the ordinary material.

In the process of distilling petroleum, the. rst product of the still isthe light volatile oil and deodorizing of the oil; fourth, speed and 2 v 3;oo3

, to a yellow colorhe must then close the valve .g `and open 'the valve h, which 'Will-immediately` change the flow and color of the oil flowing m the condenser..

v 'lhe'advantages which result from -he use We clalni as of our invention-is"` A still provided with a pipe or pipes which is or are' so arranged with relation to the still and itsoontents that the'vapor evolved from the contents of the still can be conveyed oi at different heights, substantially as herein shown, and for the purpose set forth.

LES LOOKHART. JOHN GRAGIE. A Witnesses:

. 1r saving in the use of chemicals in the refining distilling petroleum; fifth, a 'better' u lning-oil, and free from danger in

Images