US527532A

US527532A - Smokeless boiler-furnace

Info

Publication number: US527532A
Authority: US
Publication date: 1894-10-16
Anticipated expiration: 1911-10-16

Description

(No Model.) 2 Sheets-Sheet 1.

M. MGGARTHY.

SMOKBLESS BOILER PURNAUE.

Patented 001;. 16, 1894.

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.i MICHEAL MOCARTHY, OF ST. LOUIS, MISSORI.

SMOKELESS BOILERFURNACE.`

SPECIFICATION forming part of Letters Patent No. 527,532, dated October 16, 1894.

Application led June 7, 1894. Serial No. 513.755.` (No model.)

To all whom it may conocia/tl` y Beit known that I, MICHEAL MCCARTHY, a citizen of the UnitedStates, and a resident of St. Louis, State of Missouri, have invented` certain. `new and useful Improvements in Smokeless Boiler-Furnaces, of which the following is a full, clear, and exact description,

reference being had to the accompanying hollow bridge wall19, the positioning of which bridge-wall subdivides the interior of the furdrawings, forming a part hereof.

The object of this invention is to be found in the provision of improved means for aiding in the consumption of the products of combustion emanating from a coalfire.

This invention consists in the combination i with the fire box and bridge-wall of a plurality of air passages through the bridge-wall affording communication between the ash-pit and the hot-air room, a plurality of air passages from the exterior to the interior of the combustion chamberor tire box above the central portion of the grate and a plurality of air passages from the exterior of the furnace to the interior of the hot-air room, the several air passages tending to commingle with the products of combustion, a series of currents .l of atmospheric air of a lower temperature than the said products of combustion, and by means of such commingling create an iniiammable gas to be consumed within the furnace and in its consumption destroy the offensive gases,

i soot and heavy smoke, which otherwise would `be discharged into and through the chimney.

This invention consists further inthe construction, arrangement and combination of elements, hereinafter set forth, pointed out in my claims, and illustrated by the accompanyy ing drawings, in which- Figure l is a central longitudinal sectional elevation of a furnace equippedwith my inf vention. Fig. 2 is a transverse sectionalelevation on the line A-A of Fig. l. Fig. 3 is a transverse sectional elevation on theline i my device.

In the construction of the furnace as shown, the

numerals

10, 11 designate the side walls, 12 the front Wall,13 the back wall, and 14 the Locatedon the interior of the furnace, bei neath the boiler 14 and extending between and in `engagement with the

walls

10, 11, is a nace into what I shall term the combustion chamber or re box 20 and the hot-air room 2l. The floor of the combustion chamber 20 is preferably inclined rearwardly.

Horizontally positioned in the combustion chamber 2O is a grate 22 and located immediately above the central portion of the grate and extending transversely of said combustion chamber, parallel with the front wall of the furnace is a partition 23 which serves to subdivide the upper portion of the combustion chamber into two compartments. Mounted in the partition Wall 2.3 and extendingthrough the wallslO, 11, and into communication with the atmosphere outside the furnace is a pipe 24 open at both ends and provided with lateral ways or wings 25 leading downward therefrom through an arch plate 26 by means of which the partition is supported. Mounted transversely of the lower portion of the bridgewall 19 is a plurality of registers" 26 preferably formed of clay tiling, having open ends communicating respectively with the lower portion of the combustion chamber 20 and the lower front portion of the hot-air chamber 21. The register 26 is located in the center of the lower portion of the hollow bridge wall, and ports of communication are providedbetween the ash pit, and the combustion chamber 20. Located on each side of the register 26, are registers or perforated tiles 26', and its ports of communication are provided between the ash pit, and the interior of the bridge wall 19.

Pipes 27, 27, are provided in the upper por-` ICO tion of the hot-air roon1r21, which partition rests upon and is supported by an arch-plate 29. The partition 28 contains a tube 30 open at both ends and communicating at its ends with the exterior of the furnace and at its body portion with the `interior of thehot-air room through the lateral ways or wings 3l.

In the practical use-of this invention, combustion being performed on the grate 22 and disseminating heat, smoke, soot and gases, vertically and rearwardly from said grate, atmospheric air is introduced through the pipe 24 and wings 25 into contact with the products of combustion immediately above the grate, and atmospheric air is introduced into contact with the products of combustion through the outer registers 26, bridge-wall 19 and pipes 27 at the rear end of the grate 22 whereby the products of combustion are merged into a gas adapted for consumption within the combustion chamber. Those products of combustion which pass beyond the bridge-Wall contact with the partition 28 and are deflected thereby downwardly and beneath said partition and are causedr tokcommingle with currents of atmospheric air in-l troduced through the central register 26 and the pipe 30 and wings 3l Lin said partitions, whereby an iniiammable gas is produced which igniting from the inuence of the heat emanating from the combustion chamber is consumed within the hot-air chamber.

I claim as my invention;

yl. Ina smokeless boiler furnace comprising a hollow bridge Wall, perforated tiles secured in the one half of the bridge wall for means to allow the air to pass from the ash pit, into the hollow bridge wall, and a perforated tile to allow the air to pass directly through the bridge-wall, from the ash pit, tothe combustion chamber in the rear, small pipes or tubes secured in the upper part of the hollow bridgewall, an air passage in an arch, located over the tire chamber, anda series of tubes connecting said air passage, to bring the air over the fire, substantially as shown, and for the purpose described.

2. A smokeless boiler Afurnace comprising side walls l0, ll, a front wall 12, having fuel and waste passages and doors therein a back wall 13, a boiler 14, a hollow bridge-wall 19 intermediate .of the front and back walls, a grate connecting the front wall and bridgewall, a partition 23 depending from the boiler above the grate, a pipe 24 mounted in said partition and communicating with the eXterrior of the furnace, wings25 leading from said pipe to the interior of the combustion chamber, registers mounted in the bridgewall and communicating with the lower portion of the combustion chamber and hot-air yroom and theinterior of thebridge-wall, pipes leading from the interior of the bridge-wall to points above the grate, a partition 28 depending from the boiler in the rear of the bridge- Witnesses:

ALFRED A. EIoKs, HERBERT S. RoBIVNsoN.