US713647A - Gas-producer. - Google Patents

Description

Patented Nov. I8, |902.

' w. T. KELLY.

GAS PRonucEn.

(Application led Jan. 25,- 1901.)

2 Sheets-Sheet I.

(No Model.)

. IINYENTDP?. I WLLXAMTKELLK 'ms icm-ns vETERs ce. PHoTQLITNQ. WASHINGTON. n. c,

No. Y7I3,647. Patented Nov.f|8, |902.

w. T. KELLY.

GAS PRODUCER.

(Application tiled Jan. 25, 1901.)

(No Model.) 2 Sheets-Sheet 2.

INVENI DFI' WILLMM T. KEILY TH: uonms PETERS on. PHOTO-LINO., WASHINGTON, n. c.

artnr FFICE.

VILLIAM T. KELLY, OF BELLAIRE, OHIO.

GAS-PRODUCER.

SPECIFICATION forming part of Letters Patent No. 713,647, dated November 18, 1902.

Application tiled January 25, 1901. Serial No. 44,698. (No model.)

To (all who/1t 'it may concer/1,:

Be it known that I, WILLIAM T. KELLY, a citizen of the United States, residing at Bellaire, in the county of Belmont and State of Ohio, have invented certain new and useful Improvements in Gas-Producers; and I do 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 to make and use the same.

My invention relates to improvements in gas-producers; and the invention consists in a producer having the several features of construct-ion substantially as shown and described, and more particularly pointed out in the claims.

Heretofore in gas-producers of the general kind to which this invention relates various objectionable features contributed to make the poking and handling of coal and removal of ashes difficult and which took undue length of time and extra labor to perform. These objections are overcome in my invention. A

To obtain the best results in a producer, uniform and even poking is necessary at all points Within the producer, also the proper distribution of the blast of mixed steam and air into the bed of coal. So far as known to me, producers of this kind heretofore have had no means for distributing the steam and air at different points in the bed of coal and which could be used separately or together, as the nre required. Then, again, the ashes could not be removed evenly ali around the producer, and this Would cause uneven burning of the coal Within the same. It has also been the practice to build the roof or top of the producer of brick and in an arched man# ner and then centrally upon this roof to place a coal-hopper on which heavy weights were directly or indirectly supported to control the opening and closing of the door members. These members served as doors or valves for the hopper, and Whenever operated the action of the same, taken in connection With the Weight,would so rack and jar the arch or roof that frequent repairs and short life of the parts Was the result. The intensity of the heat against this arch also greatly contributed to shorten the life of the same.

The object of my invention is to provide a construction of a producer wherein the ashes can be removed evenly and at all points around or from every side thereof to main tain an even bed of coal Within the prod ucer.

Another object is embraced in the steam and air blast distributing parts and which are so constructed as to lead the steam and air to different sides of the bed of coal within the prod ucer--that is, either to one side or to all sides-as occasion may demand.

Another object of the invention is to provide a roof or top for the producer which will stand the heat for a long period of time and when repairs are necessary will require no great labor or expense to replace the roof in part or in whole.

Another object of the invention is to prevent the racking of the hopper and roof When its doors are opened and closed, and this is provided for by constructing the hopper members in such manner that the Weights controlling the same are supported outside and not upon the producer or its roof and hopper.

Other features of construction are also embraced in my improved producer which con* tribute in no small degree to its efficient operation and which are hereinafter more fully described.

Figure l is a central longitudinai section on line A A, Fig. 3, of myimproved producer. Fig. 2 is a plan View showing the coal-hopper in section and with a portion of the top roofsegments broken away. Fig. 3 is a cross-section on line B B, Fig. l, looking down, showing more especially the separate steam and air distributing ducts encircling the inside of the producer.

The producer proper (designated by 2) is circular in form and built up With an outside casing havingan inner nre-brick lining,Which casing and lining are supported upon a heavy iron base-ring 3, preferably formed in segments bolted together at their supporting-legs et, which raise said ring 3 and its flange 5 sufficiently above the base-line to provide practically an unbroken opening entirely about the bottom of the producer-that is, excepting the legs 4, which can be three or four in number. This base-ring 3 is centrally located Within a basin 6, which has an outwardly-inclined flange extending up from its bottom to a point about on a level With said ring. In operation the ashes from Within the producer IOO settle within this basin and flow outward from the bottom edge of flange 5 and as shown in dotted lines 7. The basin also contains water, which is kept about at a level shown by dotted line 8, being always maintained above the bottom edge of flange 5 to provide a water seal, and thus prevent gas from escaping at this point. The ashes are removed by suitable shovels, which can be inserted from any side to the center at the bottom of the basin and beneath the producer.

The fuel is first placed in a hopper 9, supported upon the segmental roof 2l of the producer, and in operation the beveledtop door member 11 is swung back by means of the bell-crank arm 12, which is pivoted upon the hopper, and the fuel is deposited within the hopper and is held in check there by the bottom cone-shaped door member 13. This bottom 13 is centrally suspended within the hopper by means of the cable 14, attached to the apex of the cone. Said cable runs over a central sheave 15 Within the hopper and an outer sheave 16 on the side of the hopper and thence to a weight 17, suspended by said cable from sheaves 18, fastened to suitable timbers of the building within which the producer is placed. This weight counterbalances the weight of cone member 13, and it being supported outside and independent of the producer there is practically no strain upon the hopper 9 or roof 10 when the bottom member 13 is operated. This does away with the objectionable feature of racking heretofore yfound in old styles of producers and which causedv excessive strain upon the old-style brick roof of plates and required frequent repairs.

The coal within the hopper 9 is deposited within the producer evenly and uniformly at all sides, when conical bottom member 13 is lowered. Then when said bottom member is again raised it finds its seat 19 at the bottom of the hopper, the flexible suspensory cable 14 being attached centrally to the top of cone member 13, allowing a perfect fit upon the seat at all points, which is especially desirable because the escape of gases into the hopper is thus prevented. The hopper 9 is formed in two parts bolted together at their meeting flanges 20, which fianges rest upon the roof-segments 21.

The rooi:` or top of the producer is made up of trough-shaped segments 21, which encircle the hopper 9 andwhich rest upon the brick lining of the producer. Four of these segments are shown in this instance; but more can be used, if desired, and they are bolted together at their meeting edges, so that when complete they form a substantially onepart roof. These segments are cast trough shape to hold the water which is fed through pipe 22 into one side of each segment, and a pipe 23 at the other end of each segment provides an outlet for the water. These pipes can be connected to the segments in series, as shown in Fig. 2, or each segment can have its own supply and overflow connected direct to the water-main, the object in either case being to provide a continuous flow of cold water, which is kept circulating within the trough-segments to keep them cool, so that they can withstand the heat from the producer indefinitely.

Each roof-segment 21 has a cover 24 and has also a centrally-hanged 'inverted-coneshaped opening 25, through which poking of the coal is accomplished by means of a poker or other stoking-rod. To the end that the gases be kept confined and within the producer and not allowed to escape through the poke-openings I provide each opening with a cup-shaped cap 26, which has the poke-hole proper centrally located therein and which is of such a size and form as io provide aclosefitting seat for a ball 27. Said ball is easily displaced by the poker, and although easily displaced, as described, by the poker will irnmediately drop over said opening and seat itself when the poker is withdrawn.

In order to provide a sufficient air and steam supply. to promote combustion and the gasproducing qualities necessary in this style ofv producer, a central air-distributing chamber 28 is located at the bottom of the producer and is supported upon suitable legs. The top of this chamber 2S is a perforated cone-shaped part 29, and mixed air and steam is fed into said chamber from beneath through pipe 30 and distributed through the perforations of the cover 29. Pipe or passage 30 leads outside of the producer above base-ring 3, where the steam is injected through pipe 3l into the mouth of said passage, thus promoting a draft which carries a quantity of air also into said chamber and making an air and steam mixer of passage 30.

The conical top 29 rests centrally in the bed of coal, and the distribution of air and steam is equally divided at all sides through said top owing toits formation and location; but in addition to this there are semicircular air and steam ducts 32 and 33, located on a plane, with top or cover 29 within the lining of the producer, and these ducts have perforations distributed evenly along and over their inside faces corresponding to the perforations in top 29. The connecting inlet-passage of each duct leads outside of the producer to take in the air which is drawn in by the jet of steam injected from pipe 34 at the mouth of each passage, as in the case of passage 30. Although the perforated air-ducts just described are shown as being made of two separate members to make up a complete air-distributing ring within the producer, this ring could be made up into three or more such segmental parts and each have its own steam-j et and airopening,the object being in all cases to provide a combined steam and air blast which can be directed to any portion or side of the producer independently of any other point in the producer. This is desirable, as in the event of the bed of coal-say at one side or another- IOO TIO

not burning evenly or fast enough the promote the best results. With this construction the bed of coal can receive a blast Wherever necessary and an even fire be thus maintained at all times.

The products of combustion are carried through the hre-brick flue 36 directly into a ue 38, which leads to any place or point desired, and near the top of the flue 38 and on a level With the bottom of the ue 36 I provide a Water-seal Valve to prevent the backing of the gas from the flue into the producer when the producer is not producing gases. This valve comprises the trough 39, which has Water inlet and outlet pipes connected thereto to maintain a certain level of Water within the trough, and when the cap 40, having a flange 41, is seated in place, as shown, an eective Water seal is had which prevents the backflow of gases. The cap 40 is raised or lowered through suitable cable and connterbalancing mechanism, which is subject to modification.

Vhat I claim is- 1. The producer and the cover therefor having holes through the same and removable cup-shaped caps in said holes having aring Walls, and balls to seal said caps, substantially as described.

2. In gas-producers, a producer and a Water-jacketed cover therefor having a series of Walled holes through the jacketed portion, in combination with removable caps engaged in said holes within said Walls and having {iaring top portions, and balls to seal said caps, substantially as described.

Witness my hand to the foregoing specification this 27th day of November, 1900.

WILLIAM T. KELLY.

Witnesses:

M. A. SHEEHAN, R. B. Mossa.

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