US251785A - Burning hydrocarbons - Google Patents

Description

(No Model.)

` H T. LITGHFIELD 8v D. RENSHAW.

BURNING' HYDROGARBON. No. 251,785. Patented Jam-3,1882.

N, Perlas, Plwnrumugmpnun wam nnnnnnn u UNITED STATES APATENT OFFICE. I

HARVEY T...LITCHF1ELD, OF HULL, AND DAVID RENSHAW, OF C'OHASSET,

` MASSACHUSETTS.

BURNING HYDROCARBONS.

SPECIFICATION forming part of Letters Patent No. 251,785, dated January 3, 1882.

l Application tiled March 7, 1881. (No model.) V

To all whom it may concern Be it known that we, HARVEYT. LITCH- FIELD, a citizen of the United States, residing at Hull, in the county of Plymouth and State 5 of Massachusetts, and DAVID RENsHAW, a citizen of the United States, residing at Cobasset, inthe county of Norfolk and State aforesaid, have invented certain new and useful Improvements in Burning Hydrocarbons; and we to do hereby declare that the following'is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains tomake and use the same, reference being had to the accompan ying drawl ings.

Thisinvention has for its object the proper distribution ofa hydrocarbon mixture ofsteam and air, or the vapor or gases of such mixture, within a furnace in such `manner that it is 2o evenly distributed over the entire surface of d the fuel, and in such manner as that the gases of the mixture will unite with the gases evolved from thefuel, whereby a complete combustion will take place. Its further object. is to use the said mixture in a furnace independent of any other fuel-that is to say, that by the construction and arrangement of a rotary pipe properly supplied with the vapor and gases of hydrocarbon oil, steam, superheated steam, 3o and air, (the air heated, if desired,) or without air, I produce `an intense and an even heat in a furnace.

Itis well known thathydroearbon oils, steam, and air have been introduced into furnaces by various means, and that many attempts have been made to supply this'I combined mixture to furnaces. Y It is also well known that much difliculty has been experienced in properly distributing it in such manner as to heat all parts 4o of the boiler or furnace evenly. It is further known that lthis mixture of oil, steam, and air has been blown against parts of the boiler in such manner as to act as a blow-pipe, thus pitting, blistering, and burning the boiler or any 4 5 surface against which it is thrown. Therefore, to remedy these evils are further objects of our invention; and to this end it consists, first, in j locating a perforated pipe or pipes either across orlengthwise of afurnace,the pipe beingadapt- 5o ed to rotate, and preferably resting in journals in the furnace-wall, said pipe performing the function of a retort as well as a distributer, the fuel lmixture being forced in and through under pressure; secondly, in providing the rotating pipewith inner projecting nipples or projections, either screwed into or cast thereon, said nipples or projections having outer communications for the passage of the fluid gases to the furnace; third, the rotating perforatedpipc provided with motive-power attachments, swivel-joints, and air, steam, and oil conduit pipes, the'swivel-joint being for the purpose of allowing the perforated pipe to rotate,while at the same time it is jointed to the stationary conduit-pipes.

Referring more particularly to the accompanying drawings, Figure l shows a cross-section of a furnace enlbodying'our invention; Fig. 2, a cross-section of a plain .perforated .pipe 5 Fig. 3, a cross-section of the perforated pipe, showing the nipples or projections on its inner side. Figs. 4t and 5 are modifications .showing the application of the invention in an upward or downward position.

' Like letters of reference indicate like parts in all the gures.

A is the furnace-wall; B, the furnace-chamber; C, the grate-bars, and D the ash-pit. E is the perforated pipe; f, the perforations. a is the union of the supply-conduits. b b are the driving pulleys or motivepower attachments. o 1 are the swivel-joints, and d d2 d3 are the supply-conduits. In this instance a bracket is shown as a support for the outside parts of the perforated pipe; but it is evident any well-known means may be employed. All these parts maybe applied to the up-and-down or vertical pipes, as shown at Figs. 4 and 5.

Fig. 3 shows the inner projections, which may be of any desired form or make. The oh-` ject of these inner projections is to retain the mixture of the various elements forming the gas (particularly the oil) sufciently long to convert it to a gas, or, as may be said, toa xed gas. While as a rule the mixture is complete wllen it enters the pipe, still some oil or residuum might enter the perforated pipe, and by means of the projections it cannot escape` until it is converted into gas. Thus it will be seen that the pipe itself is a lirst-class retort. roo d It will be observed that this device is cheap in first cost, readily applied to almost any form or kind of furnace, easily manipulated, removed, and replaced. All the parts beinzgr interchangeable, any Worn-out part may be supplied.

The conduits are of course provided with properv controlling-cocks, so that the richness of the niixtuie may be regulated. The same may be said of the quantity of heat or dame required. Thus it will be seen that the entire apparatus is under the complete control of the operator.

Having now described our invention, what we claim as new, and desire to secure by Letters Patent, is-

1. In a hydrocarbon-furnace, the perforated rotating pipe extending across or lengthwise of the furnace, the mixture in said pipe heilig forced through and disseminated by steampressure, substantially as set forth.

2. In a hydrocarbon-furnace, the rotating pipe providedV on its inner side with nipples or projections, the projections being provided with communications through them, said projections being adapted to retain within the pipe any liquid fuel until it is converted into gas, substantially as shown and described.

3. The combination, in ashydrocarbon-furnace provided with a rotating perforated pipe, of the motive power attachments and the swivel -joint with the fuel-supply conduit-s, whereby fuel is fed to the rotary pipe While in operatiornin the manner shown and described.

H. T. LllTCHFIELD. DAVID RENSHAW.

Witnesses:

UHAs. F. SLEEPER, A. S. EITHER.

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