US333627A - Fire-pot for stoves and furnaces - Google Patents

Description

wb @my (No Model.) 2-Sheets-Sheet 1.

G. H. HESS. v

FIRE POT FOR STOVES AND FURNAGES. No. 333,627. Y Patented Jan. 5, 1886.

(No Model.) 2 Sheets-Sheet 2.

G. H. HBSS. FIRE POT PoR sToVBs AND PURNAGES.

No. 333,627. Patented Jan. 5, 1886.

ffy@

UNITED STATES PATENT OEEICE.

GEORGE H. HESS, OF CHICAGO, ILLINOIS.

FIRE-POT FOR STOVES AND FURNACES.

SPECIFICATION farming part of Letters Patent No. 333,627, dated January 5, 1886.

Application filed March 9, 1885.

To a/ZZ whom it may concern.-

Be it known that I. GEORGE H. HEss, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Fire-Pots for Stoves and Furnaces, of which the following is a specilicatlon.

My invention relates to improvements in round, oval, and rectangular re-pots for coal stoves and furnaces; and the object of my iuvention is to construct a fire-pot economically, and so arranged as to be easily set up or placed together, not easily injured or broken, and durable, and in such a manner that a supply of air will be furnished to the outer edge of the fire throughout the body of the burning mass in said fire-pot, at the surface thereof, or at both of said places when my improved firepot is placed in any stove or furnace.

My invention is also constructed with a view to placing the same in any stove or furnace Without change or alteration in said stove or furnace.

My invention is formed or built up of a varying number of round, oval, or rectangular ring-sections placed the one upon the other, as hereinafter more fully described, the said rings having airducts cast therein, and ribs or projections cast thereon.

I have illustrated my invention by the drawings accompanying this specification, and forming a part thereof.

Like letters refer to like parts throughout the several views.

Figure 1 is a cross-section on line l l of Fig. 2. Fig. 2 is a cross-section on line 2 2 of Fig. 1. Fig. 8 is a cross-section showing one more section than appears in the-other figures of the drawings. Fig. 4 is a broken section on the same line (2 2 of Fig. 1) as Fig. 2, with ribs or projections on the outside of the re-pot. Fig. 5 is a plan view of the edge or bottom of the upper ring used. Fig. 6 is a plan view of the lower edge or bottom of the ring used by me as the middle ring or rings.

A is the lower ring-section of my improved fire-pot.

B is a ring'section used in my invention. One, two, or three ring-sections, B, may be used, as preferred.

serial No'. 158,201. (No model.)

C is a ring-section used in my invention, forming the upper part of the fire-pot.

D is an air-duct cast in A.

D is an air-duct cast in B. When ringsection Bis placed upon ring-section A, (shown in Figs. 1` and 3,) air-duct D forms a continuation of air-duct D.

E E are ribs or projections cast on ringsections A B C.

F F are the ribs or projections in which airducts D D' are cast.

G is a cement joint.

H is a flange on the upper and outer edge of the several ring-sections, serving, in conneet-ion with the outer surface of the next higher section, to form the basin in which cementjoint G is made.

X X are projections or fingers extending toward the grate. The form of :fingers and the forni of grate used is immaterial.

The lower edge or bottom of ring-sections B and C are of such form, Figs. 2 and 3, as to form the top or upper surface of the horizontal outlet or escape f or the air rising in airducts D D.

Themanner in which my invention is placed in a stove, furnace, or the fire-box of a boiler, Snc., is: Bing-section A is placed in the stove or furnace, cnc. One or more ring-sections B B are placed upon ring-section A. Ring-sed tion C is placed upon ring-section B. The sections may be placed together before putting the fire'pot in the place for which it is designed, and cement joints G G made.

The object of the cement joints G G and of the top ring covering the air-ducts D D' is to prevent the escape of heated gases from said joints and vertically from said air-ducts, thus allowing a draft from the burning mass contained in the re-pot,in place of forcing heated air into and over said fire.

The operation of my invent-ion when in use is: rIhe burning mass contained in the fire-pot heats the material (preferably cast-iron) of which the fire-pot is constructed. An upward current of heated air is formed in air-ducts D D' and discharged into the burning mass contained in said fire-pot through the outlets above described.

The result attained by the above-described invention is a very complete and perfect com- ICO bustion of the mass of coals in the fire-pot and the smoke and gases evolvedtherefrom.

Projections or ribs E and F serve when placed on the inner surface of the fire-pot to keep the burning mass contained therein from close contact with the body of the fire-pot, and when such contact is desired these ribs or projections are placed on the outside, as in Fig. 4.

I am aware that a horizontally-corrugated lire-pot formed of a plate or plates, and with an outside diameter smaller than the inside diameter of the stove in which the re-pot is placed, thus forming an air-chamber between the same, has been heretofore made, and that numerous perfor-ations in the corrugated 1ining have also been made, communicating with said air-chamber.

I am also aware that an interior auxiliary lire-pot located at a distance from an outer fire-pot, t0 creat-e an intervening air-space, and

constructed with a top liange having an annular. series of .perforationa to form airpassages, has been heretoforeconstructed.

I do not claim, broadly, means for introducing-a current of air into or over the burning mass contained in the fire-pot.

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

In a fire-pot, the combination of ringsec tions A B, provided with air-ducts therein, and ange or rim H thereon, ring-section C, resting upon and covering ring-section B and the air-ducts therein, and cement joint G between said flange H and the outer surface of the nexthigher ringsection, all substantially as described, and for the purpose set forth.

v GEO. H. I-IESS. Witnesses:

Mrs. E..K. HAGUE, FLORA L. BROWN.

Images