USRE3585E - Lizabeth hawks - Google Patents

Description

To all whpm it may concern part of this, my specification.

tama sara Imm Pawn N. 64,102, ma Apel 23, 1867; am No, 3,585, ama August 3, 1869.

The Schedule referred to in thele Lettori Patent and making o! th sume.

.Be it'known una 1, Eminem' Hrwxs, of the `city of Troy, in -the county of Rensselaer, and State of New York, have invented an Auxiliary Air-Chamber for Stoves,` Heaters, and Furnaces of all de- 'scrptions and that the following is a full, clear, and exact description of the same, reference being had to the accompany ing drawings, which form and make a Like letters represent and sponding parts.

Figure 1 is a perspective view of a cookingstove containing my invention herein described and set forth.

Figure 2 is a sectional view, showing the tire-box, ash-pit, and the auxiliary air-chamber, arranged above the hearth of the stove. Figure 3 is also a sectional view, showing the lirebox,- ash-pit, and auxilary airs chamberbelow the hearth of a cooking-stove, and which auxiliary airchamber is more fully hereinafter described and set forth.

The invention, as illustrated by'the drawings, consists of an oblong rectangular, or other-shaped cap or cover, open on the bottom and side presented to the fire-grate. i

The front o r outer side has a slot, B, of` convenient length, through Vwhich the draught is admitted to supply the fire. y

"lhis slot may also be used for the admission of a. raker for the purpose of cleaning the grate of ashes, 8m., whenever the sameis clogged thereby.

The cover or chamber A, when applied to or constructed with a stove, heater, or furnace, as the-ease may he, is so fitted as to preclude the admission of any draught, except through the heated chamber H, fig. 2.

By this means, a large air-chamhenor space, is made, -through which the air must pass before it reaches the fire.

During such passage it becomes highly heated and f rarefied, thereby securing a -diminished consumption of fuel, and also furnishing a largely-increased radiating-surface. Anothervaluable -feature of my invention, and one which recommends `it to every housekeeper in the country, is the fact, that applying this chamber and guardas it might v'ery appropriately be designated, no dust or ashes are thrown into ,the roon'r while the grate is heilig dumped or raked, but, on the contrary, the dust, smoke, ashes, and cinders, are all confined within the chamber' H, figs. 2 and 3, and all trouble or annoyance on account of the lsame is avoided.

Experiment has further demonstrated that when this chamber is applied as above, amuch higher tempcrature of the lower strata of the atmosphere in the refer to like or corre-,

I not reach theA fire room is obtained, thereby` securing a more equable temperature, with a small amount of fuel, through all parts oftheroom."

Among the other vice are-- First, a more perfect consumption of the gases and advantages secured by this de- "wapors generated by. combustion, actual trial having ,when communication with the demonstrated, that chimney` or vescape-flue is entirely cut oil', no escape of any noxious gases or vapors is observable, thereby showing a very lnearly perfect consumption of the fuely and gases.

Second, when applied to, or constructed with, cookstoves of ordinary patterns, the plate covering the hearth, andlalsoa part ofthe front of the vstove may be dispensed with, thus obtaining a much larger radiating-surface on theA bottomof the stove, by ,means of which the temperature of the lower part of the roomis rendered more uniform.

This device may he cast with stoves and heaters in the samemanner as reservoirs or other external or yinternal appendages may be attached.

If cast in a separate pieceor pieces, it may be attached to the grate or ash-.pit chambers by means of bolts passing perpendicularly through the chamber H and hearth-plate, and securedin theordinary manner;

'or the patterns for the sto'v'e, range, or heater may be so constructed as to form an internal chamber exposed to the heat generated in theire-box, so that no draught can' reach the fuel, except by first passing through this chamber.

It may be constructed l,either on the' sides of the fire-box, admitting the draught at one end of the chamber, and during its passage through the same, rare- -fying it and passing it into the grate at the opposite end, or by constructing said chamber immediately under the grate or fire-box, so that the draught can- A until aiter having passed through this chamber. A

The construction and application ofthis device and principle, must necessarilyr be as various as there are diiferentkinds of stoves and heaters used.

The form, construction, attachment, combination,

and application of this device, as shown by the drawings, at gs. 1, 2, and 3, are but two of many involving the same principles.

By modications in form and shape, this invention may be adapted to all classes of heaters, furnaces, and boilers where it is deemed advisable to supply the fire with aheated draught, or when the doating dust or ashes are a nuisance incident to the agitation or cleaning of the grate. A

Havn g thus described the nature, construction, and operation of my said invention,

@uw one. 'y

WhatvI lim, and desire to ont of the United '.1. The shield taining a horizon top or upper ed used in 'themanner and for th as herein described 2., Also, the empl berH, constructed, la nation with the re bei' of combustion hereinbefore descri secure by Letters Patequivalent therefor, conor slot b atA or near the stmcted and applied, or e purposes 'substantially ent of the auxiliary air-chamrranged, and operated in combi- -grate F, and lire-chamber or cham- E, in the manner substantially as bed and set forth.

the arrangement and combination of the opening or elongated slot B, or any-equivalent thereof; with the auxiliary air-chamber H, by means of which atmospheric air is admitted to the fire in the combustion-chamber E, so afs to promote and facilitate combustion and economy in the use of fuel, substantially as hereinbefore described :md set forth.

In testimony whereof, I'have herenntos'et my lmnd, this 30th day of January, A. D. 1869.

ELIZABETH HAWKS.

Witnesses:

CHARLES D. KELLUM, MARoUs P. NORTON.

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