USRE356E - Improvement in spark and gas consumers - Google Patents

Description

i Furnace conductor.

IUNITED STATES PATENT OFFICE.

DAVID MATTHE\V, OF PHILADELPHIA', PENNSYLVANIA.

IMPROVEMENl IN SPARK AND GAS CONSUMERS.

Specification formingr part of Letters Patent No. 6,116, dated lfcbinary 2U, IMU; Reissue No. 24?", datrd October 1, 1853; Reissue No. 356. dated February 26, 1856.

To aZZ whom it 1mi/y concern:

Be it known that I, DAVID MATTHEW, formerly of the city of Baltimore, in the State of Maryland, now of the city of Philadelphia, in the State of Pennsylvania, have invented eertain new and useful improvements in the manner of constructing a machine to be used onv locomotive steam-engines, for" the purpose of conveying off the sparks from the engine and preventing their escape out into the air, and of causing their consumption, together with that of a portion of ignitible gas, and of aiding in thegenerating of steam; and' I do hereby declare that the following is a full and exact description thereof. I

The nature of my invention consistsin combining an outer or receiving ease, shield, or plate-head and flterer with and on top or over a sectional chimney enlarged at the base which rests on the smoke-box of the engine beyond the diameter of the upper part of a section extending vertically into the smoke-box near to the lower horizontal finesy of the boiler, and near to the sparks that lic in the bottom of the smoke-box, to convey the sparks off from the engine, increase the generation of steam, and arrest the sparks, notwithstanding-the increased force of the chimney; also, in aiding in the generation of steam -by increasing the base of the chimney,which rests on the smokebox, beyond the diameter of the upper end of its section extending vertically to near the lower horizontal flues, to more uniformly support the draft between the upper and lower rines; also, in turning the sparks from the top of the chimney inwardly into the inside of a conical or trumpet-mouthed tube, and in conducting the sparks and aA portion of the gas, with atmospheric air, into the furnace, to be consumed by the means to be presently described.

In the accompanying drawings, Figure 1 is aside elevation of a locomotive-boiler,with the usual horizontal filles and iirebox, the sectional chimney and apparatus which is placed on the top thereof being shown in section. 'kThe upper part of the chimney and apparatus being shown in section, and the lower portion ofthe chimney with the boiler and tire-box in perspective inthe drawings of the original filed in the oice on the second of August, 1847.) Fig. 2 is a top view ofthe same, showing the shield or head and tilterer with the outer-case, and also the conductingpipes leading to the furnace. Fig. 3 is a top view of the outer case. lFig. 4 is a side elevation ofthe outer case. Fig. 5 is a side view of the trumpet-'mouthed tube. Fig. 6 is a side view ofthe apparatus that is to bc contained within the outer case.

The chimney I, with its lower section, It, stands vertical, with the base ofthe part l resting on the smoke-box, and enlarged be-- yond t-he diameter of the upper end of seetion R, which extends vertically down near the lower horizontal fines and to within about fifteen inches of the bottom ot' the smoke-box. This enlarged base forms at the top of the smoke-box a space between the two sections, in the same manner and kind as is formed bctween the sections on the upper part of my chimney described in my patent, dated De cember 31, 18110, and extended for seven years, giving at this position the additional effects of taking up the heavy sparks from the lower flues and bottom of the smokebox to be arrested, and aiding in the generating of steam by equalizing the draft between the .lower and upper fines, (also, like the said old sectional chimney, it prevents the reaction of the draft on the lilies and furnace between the pulsations or beats of the exhaust, and relieves the draft ofthe engine while standing or firing up.) The exhaust-pipes present their Inouths below this opening of the chimney, directed upward, and discharge the exhaust-steam up the chimney, up which it passes from one section to the other in the same manner as in the chimney of my said spark-arrester patented in 1840. Vith the section ot' the chimney -formed at the top of the smoke-box, the reA ceiving-case, shield, or head, and filteren', must be combined with the top of the chi1nney and not between the top and the base. A receiving-case, shield, plate, and filterer such as patented by L. Phleger, assignee, in June, 184],or the receiving-case and filterer known as the Shultz arrester, being between the top and base of the chimney, would destroy the volume of the exhaust and draft of this chimney, and by its increased force the gauze bonnet would be destroyed. Vhiie the chim- 2 i aan" ney alone without the shield or head and filterer will throw out more fire with greater force than the old chimney and this arresting apparatus alone without the sectional chimney will leave the heavy sparks of bituminous coal in the lower fines and smokebox to injure the engine, the arresting apparatus consisting of the shield or head-plate, filterer or ganze, and receiving or outer case must be combined with the top of this sectional chimney to give the beneficial results without being pernicious. The outer ease, P P, has a bottom, C G, firmly riveted to the chimney I, that enters it to the height, say, ofsix inches, as shown atea, Fig. 1. Over this chimney is a top plate or shield, A A, against which the sparks are forced from thel chimney in their ascent. In a portion of this plate is a wire-gauze or lilterer, K, through which most of the steam escapes. The sparks after striking the .head fall back on a lower plate, B B, having a flange, d., rising from it forming a basin t0 hold the sparks. Another flange, d, descends from the upper plate or head, the two being connected by rods and snrrounted by wire-gauze within the outer case, the same as in my said spark-arrester patented in 1840. The bottom plate BB has an inclination, say, of four or more inches from its forward to its rear end toward the pipe J that enters the pipe H at G, it being considerably smaller than the pipe H. `The bottom plate B B may be about five inches above the bottom plate C C, Fig. 1, which is parallel to it. D D is the trumpetmouthed pipe. (Shown separately in Fig. 5.) The upper portion or mouth of this stands immediately below an opening, K, in the head A, which opening may be about fifteen inches `in diameter, and is to be closed or covered with wire-gauze or a filterer forming an obtuse inverted cone, as shown by the lines c c, Figs. l and 6. not in contact with the plate A A, but is connected to it by short rods orstuds, f f, Figs. land 5, so as to allow aspaee between them. The trumpet-mouthed portion`of this tube consists of two parts, divided horizontally from each other nearto -its upper end, as at E, Figs. 1, 5, To the upper portion is attached a curved flange, E, Figs. 1, 5,which is in the form of the upper section of a tubular ring divided horizontally through its middle, and between the two sections of' the trumpetmouthed tube 4there is a passage, as indicated by the arrow ILE, Fig. 5, through which the draft and sparks may pass f'rom the outside inwardly to the inside of said trumpetmouthed tube, the curvature of the flange g E, Figs. 1, 5, serving to direct said sparks directly down toward the tube D', through which they are forced by the exhaust-steam into the tube H, the open end of D being opposite to the tube J. The two sections ofthe trumpet-mouthed tube Dare connected torfhc trumpet-mouthed tube is gether at intervals by short studs or thimbles. The tube H wheny it meets the boiler divides into two branches, H H', Fig. 2. These branches each enter a hollow box or case, L, made fast to the outside of the fire-box. From these cases there are holes made into the interior of the fire-boX, as shown by the dotted lines o o o, Fig. 1. Of these there may be twelve, or any other preferred number, each of which may be about an inch 'and a half in diameter. From the under sides of the cases L descends a tube, M, that enters the ash-pan, and at the upper end of this tube there is a valve, N, which may be opened or closed at pleasure. The use of this is to carry off' the water,which,when the engine is foaming, may be carried into the case, and which, without the provision ofthe pipes M, would pass into the fire; but by opening the valve N it will be thrown into the ash-pan without injuring the fire. rllhe forward motion of the engine causes tubes G G, attached to the outside of the case, to operate as blowers in driving the sparks and gas through the tube H,snpplying the oxygen necessary to their perfect combustion. To effect this, these tubes G G are flattened, -so as to leave a space of two inches,more or less, between them and the cuter case, but widening out at their forward termination, where they are open, as seen at G G. Fig. 7, which shows their forward ends. tubes, on each side of the case,meet at its rear end and enter the tube H, as shown at G, Fig. 4, leaving a space in the center for the entrance ofthe sparks and gas from the arresting-case. f

W'hat I-claim is- 1. The combination of the receiving-case, shield-plate or head, and filterer, with and over the top of the sectional chimney, with enlarged base and smallersection in the smokebox to convey off and arrest the sparks without pernicious effect, as described.

2. Increasing the base ofthe chimney beyond the diameter of the upper endof the section, extending vertically to near the lower horizontal flnes and bottom of the smoke-box, to aid in the generation of steam, as described.

3. The trumpet-mouthed tube over thechimney, said tube being divided into two or more 4 These

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