US748933A - Apparatus for the manufacture of gas - Google Patents

Description

PATENTED JAN, 5, 1904.

' R. DBMPSTER.

APPARATUS PGR THE MANUFAGTURE 0F GAS.

APPLIOATIOE FILED APR.2. 1903.

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UNITED STATES Patented January 5, 1904.

ROBERT DEMPSTER, OF MARIETTA, OHIO.

' SPECIFIGATION-forming part of Letters Patent No. 748,933, dated January 5, 1904.

Application filed April 2, 1903. Serial No. 150,829. (No model.)

T0 all whom it may concern.'

Be it known that l, ROBERT DEMPSTER, a citizen of the United States, residing at Marietta, in the county of Washington and State of Ohio, have invented a new and useful Apparatus for the Manufacture of Gas, of which the following is a specification.

This invention relates to certain improvements in the manufacture of gas, and has for its principal object to provide an apparatus or plant suitable for carrying on the manufacture of a good quality of gas in a simple, edective, and thoroughly practical manner.

The apparatus comprises in general a' retort, heating means for the retort, in combination with means for compressing air and for aerating the hydrocarbon to be used in the manufacture of gas, the retort receiving at one end a quantity of mingled air and oi and at the other end a jet of air. -l

With these and other objects in View the invention consists in the novel construction and arrangement of parts hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims, it being understood that various changes in the form, proportions, size, and minor details of the structure may be made without departing from the spirit or sacricing any of the advantages of the invention.

In the accompanying drawings, Figure lis a view, partly in the nature of a diagram, illustrating an apparatus constructed and arranged in accordance with the invention. Fig. 2 is a detail sectional view illustrating, on an enlarged scale, a retort of the character which it is preferred to employ in carrying out the invention.

Similar numerals of reference are employed to indicate corresponding parts throughout both figures of the drawings.

The apparatus or plant forming the subject of the present invention is designed for the manufacture of a xed gas from hydrocarbon, and in practice the cheaper and inferior grades of hydrocarbon may be used, as Well as crude oil of any character or refined or partlyrefined oil.

In carrying out the invention it is preferred to employ a retort l0, which is placed in a suitable furnace and there subjected to the action of heat, the retort being preferably heated to a cherry-red, and in the one end of said retort is injected a mixture ofY previouslymingled air and hydrocarbon to form a spray or mist, and at the opposite end is an air-injecting tube. In arranging the plant or system for carryingon the manufacture of gas the retort or retorts are placed within a suitable furnace, which may oe heated by fluid fuel or by coal, the heating devices forming no part of the presentinvention.l Adjacent to the retort is au air-pump 36, operated by any suitable power, a gas-en gine being preferably employed. The pump is connected to a compressed-air reservoir 37, which may be supplied with a suitable valve 38. From the reservoir extends a pipe 23', which is connected to the air-injecting pipe 23 at one end of the retort and serves to admit compressed air from the reservoir to said retort. Adjacent to the compressed-air reservoir is an oiltank 39, connected to the compressed-air reservoir by a pipe 40, which extends between the upper portions of both tanks, its discharge end extending downwardly within the Yoil-reservoir preferably to a point below the level of the oil therein and having a plurality of perforations through which the air is forced to mingle with the oil. The lower portion of the oil-tank is connected by a pipe 42 to a retort-pipe 18 and admits the air and oil to that end of the retort opposite the air-iujector.

With an apparatus constructed in accordance with this invention it is possible to make a continuous run for an indeterminate period of time without stppping for cleaning purposes and without 'the removal of any tarry or other deposits, and hydrocarbon of any character may be employed for the purpose of manufacturing gas.

Having thus described the invention, what is claimed isl. In an apparatus for the manufacture of gas, the combination with a retort, of a compressed-air reservoir, a supply-pipe leading therefrom to one end of the retort, an oiltank, an air-supply pipe connecting the upper portions of the reservoir and the oil-tank, and a supply-pipe leading from the oil-tank to the opposite end of the retort for admitting a mingled jet of air and oil to said retort.

2. In an apparatus for the manufacture of 1o mixture of air and oil, and au air-compressing means connected to the compressed-air reservoir.

In testimony that I claim the foregoing as myown I have hereto afIiXed my signature in the presence of two witnesses.

ROBERT DEMPSTER.

Witnesses:

J. Ross CoLHoUN, JN0. E. PARKER.

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