US356392A - Albert l - Google Patents

Description

2 Sheets--Sheet 1.

(No Model.)

4 A. L. GOODENOW.

HOT AIR FURNAGE. No. 356,392. Patented Jan. 18, 1887.

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HOT AIR "FURNAGR Patented Jian. V18j-1887.

N. PETERS, PMn-Uhogrlphar. Wuhingiun. DAC.

linnen STATES PATENT OFFICE.

ALBERT L. GOODENOW, 0F UIIOA, NEW YORK.

HOT-AIR FURNACE.

SPECIFICATION forming part of Letters Patent No. 356.392, dated January 1s, 1887.

v Application filed May 3, 1884.` Serial No. 130,195. (No model.)

.To all whom t may concern:

Be it known that I, ALBERT L. GoonENoW, of the city of Utica, in the county ot' Oneida and State of New York, and a citizen of the United States, have invented a new and useful Improvement in Hot-Air Furnaces; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the letters and figures marked thereon.

My invention relates to hot-air furnaces; and it consists in certain details of construction and arrangement hereinafter described, and more specilically pointed out in theacconipanying drawings, in Which- Figure l is a verticalcentral section of the entire furnace; Fig. 2, a horizontal section on the line C D of Fig. l; Fig. 3, a horizontal sect-ion on line G H of Fig. l; Fig. 4, a horizontal section on line A B of Fig. l; Fig. 5, aver tical crosssection of the ash-pit base, Fig. 6,

va perspective view (reduced) of the upper ire-pot; Fig. 7, a partly horizontal section on the line E F, Fig. l; Fig. 8, a perspective View (reduced) of the lower tire-pot; Fig. 9, side elevation of one of the radiating wings.

The object of my invention is to produce a convenient compact furnace aiiording a large amount of radiating-surface in a small space, and one that `will produce the maximum amount of heat required from a given amount of fuel, also onein which the iiues may be readily and conveniently freedfrom dust and ashes without diffusing same throughout the surrounding atmosphere.

In constructing my furnace I provide an ash-pit base, A,(sho\vn in Figs. l, 3, and 5,) having a ilanged circle, c', to receive the circular part-of the ash-pit, also an exterior ring or flanged?, to which the outer shell of the furnace is fitted. Upon this base is placed the ash-pit casing, the walls of which are repre-v sented by a, Figs. 3 and 5. At the top and rear of the ash-pit is a flue-collar, a, and over the center of the ash-pit is the grate G, vthe particular construction of which is described in another pending application.

Mounted upon the ash-pit is the lower lirepot, B, (shown in Fig. 8,) and consisting of a ring provided with an opening in front for the purpose of permitting cinders, &c., to be raked Fitted upon the upper surface of the lower i fire-pot is a ring, C, corresponding in circumference with the furnace and having an inner groove, b2, for the reception of the upper fire'- pot, F, and an outer groove, b3, for the outer Wall or shell of the furnace. Upon this ring is mounted the upper fire-pot, F, which is provided with vertical openings or slits f', through which project the radiating Wings f f. These wings are confined in the slits by shoul-` ders f 2 on their inner ends, which rest against the interior wall of the upper fire-pot, and between these shoulders are placed fire-bricks s, which form the inner lining of the nre-pot and hold the Wings firmly in place.

Upon the top of the upper fire-pot and inclosing same is a flanged ring, a, which forms a seat for the lower combustion-dome, M. Above this dome and resting upon it is the upper combustion-dome, M', over which and supported by itis a chamber or space, Z, opening into the circular radiating ilue M, surrounding and inclosing the same, and provided With a smoke-exit flue, IVF.

Between the ash-pit and circular radiating flue at the rear of the furnace is a direct-draft fine, M2', provideduwith a damper, t, which is operated by a rod or handle, O, extending to the front of the furnace.

M3 is the feed-section, and in front of the upper fire-pot,within the casing, is located a water-vat, M, designed to contribute the requisite moisture to the heated air diffused by the furnace.

M7 represents the outer shell or casing of the furnace, and M8 the circular radiating flue.`

When desired to operate my furnace, the fire is started and the coal introduced throughthe feed-section. Air is 4then admitted through the front of the ash-pit, and passes up through the grate to the fire. The products of combustion pass up through the combustion-chambers M, M', and Z into the radiating flue M, thence around both sides of sameto the smoke- IOO exit M5. `Meantime the heat is reflected from all the radiating-surfaces of the fire-pots,wings f, combustion-domes, and circular radiating flue, and it will be observed that an exceedingly large amount of radiating-surface is afforded in a small space. Then it is desired to shake down theiire, the damper in the draftflue M2 is opened by means of the handle O, which affords a direct draft from the rear of the ash-pit to the circular radiator-flue, and causes all dust and fine ashes to pass up and out through the smoke-exit M5.

- All einders may be raked off the grate through the opening in the front of the repot into the housing K, where they are permitted to drop down into the ashpit through the opening in its top, the slide p being withdrawn by means of its handle or rod R.

Nhen desired to clean out the circular radiator, a brush may be inserted in the smokeexit and the dust, soot, and ashes brushed back from either side to the rear, where they drop down through the draft-fine M2 into the ash-pit, the damper t being opened for the purpose.

Having thus described my invention, what I claim, and desire to secure by Letters Patent, is-

l. A furnace having an outer shell, an ashpit, and ash-pit base, a fire-pot made in two sections, the upper section having shouldered radiating flanges, said ash-pit base having an interior ianged circle to receive the circular part of the ash-pit and an exterior ring or ilange to receive the furnace-shell, all arranged and combined substantially as and for the p n rpose described.

2. The combination, with the furnaceshell, of the ash-pit base having an exterior flanged circle, the ash-pit casing provided with a fluecollar and central grate, a fire-pot made in two sections, the upper section being provided with vertical openings and having shouldered iianges projecting through said openings, a colnbustion-dome, a circular radiating fiue,and adust-iiue connecting the ash-pit and radiating flue, substantially as and for the purpose described.

3. The combination, with the furnace-shell, of' the ash-pit base, the lire-pot made in two sections, one of which is provided with shouldered radiating flanges, a combnstioadome, a radiating fine, a supporting-ring mounted upon the lower section of the fire-pot, said ring having an inner groove or seat for the reception of the upper section, and an exterior groove for the reception of the furnace-shell, substantially as and for the purpose set forth.

el. A furnace having a fire-pot made in two sections, the upper section lined with firebrick and provided with vertical openings and shouldered fianges projecting through said openings, in combination with the ash-pit, combustion-dome, and dust-flue, substantially as and for the purpose set forth.

5. The combination, with a lirepot made in two sections, the upper provided with vertical openings or slits in its sides, of the removable radiating wings having shoulders on their inner ends, which rest against the interior wall of the upper section, substantially as and for the purpose described.

6. The combination, with a lire-pot made in two sections, the upper section having vertical slots and shouldered radiating fian'ges, of 7 5 the lower combustion-dome, a hanged ring on the upper section of the iirevpot forming a seat for the lower combustion-dome, a circular radiating flue, a chamber opening into said flue, and a smoke-exit flue, substantially as and for the purpose described.

7. The combination, with a furnace, of the ash-pit, the circular' radiator-,the smokeexitfine, the draft-flue connecting the ash-pit and radiator, and a damper in said draft-line providedwith a handle projecting from the front of the furnace, whereby the damper is operated from the front ol' the furnace, substantially as and for the purpose described.

Dated and signed at Utica, New York, this 1st day of May, 1884.

ALBERT L. GOODENOVV.

Witnesses:

C. D. F. Hoxn, GEORGE P. PERRY.

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