US684027A - Heater. - Google Patents

Description

No. 684,027. j YPatented Oct. 8, |90I.

. F. D. WOODRUFF.

HEATER.

(Applica'ton led Jan. 16, 1901.) (No Model.) l2 sheefwsh'eet l.

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(Application led Jan. 16, 1901.)

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NITED STATES PATENT OFFICE;

FREDERICK D. WOODRUFF, OF MAYVOOD, ILLINOIS.

HEATER.

SPECIFICATION forming part of Letters Patent N o. 684,027, dated October 8, 1901.

Application tiled January 16, 1901. Serial No. 43,486. (No model.) A A Be it known that I, FREDERICK D. WOOD- RUFF, a citizen of the United States, residing at Maywood, in the county of Cook and State of Illinois, have invented a certain new and useful Improvement in/IIeaters, (Case No. 2,) of which the following is a full, clear, concise,

'and exact description.

My invention relates to a heater; and my object is to provide a heater of new and attractive design which may be placed directly in the room to be warmed and from which a maximum amount of heat will be obtained Vfrom a given consumption of fuel.

I will describe my invention in connection with the accompanying drawings, which illustrate the preferred embodiment thereof, and

-the features which I regard as new will be pointed out in the appended claims.

Figure l is a front elevation of the heater. Fig. 2 is a plan view thereof. Fig. 3 is a transverse Vertical sectional elevation on line 3 3 of Fig. 1, and Fig. 4 is a sectional elevation taken on line 4 4 of Fig. 2.

The same letters of reference are used to` designate the same parts wherever they are shown.

One of my objects has been to produce a heating-stove which would have the combined advantages of an ordinary stove and an open- -grate fire, and I have therefore constructed the tire-pot a in the form of an open grate, as shown most clearly in Figs. l and 3. The

general shape of this repot is rectangular, like a box, with the front open. The fire-grate cd, upon which theifuel is to vbe burned, is set in the tire-pot a distance above the iioor thereof, leaving an ash-pit underneath. A deflector-plate a2 is placed diagonally in the fire-pot, as shown most clearly in Fig. 3, said deflector-plate extending from the rear wall of the fire-pot a few inches above the grate a outward and upward, slanting toward the open front of the lire-pot and terminating a few inches below the roof of the fire-pot to leave an open passage between the plate and the roof, through which the products of combustion may pass.

The body portion of the stove is in the form of a double-walled drum b, between the inner and outer walls whereof the products of combustion are led in spiral lues, which I shall presently describe. An oblong open court is left in the center of the drum, through which air may rise and receive the heat from the drum. This court communicates` with the outside of the stove at the bottom through the perforated base-plate c and. at the top through the grating CZ. The fire-pot projects some distance linto this court, so that the` air rising through the court is heated bythe rear wall of the fire-pot, as well as by the heated gli.

products of combustion passing through the drum. Spiral partitions e c are provided betweenithe double walls of the drum b, formi ing lines through which the products of'combustion from the fire-pot are led. TheseY partitions are peculiarly arranged to take the greatest advantage of the heat giveno from the fire-pot. The flue leads from the right-hand upper corner of the re-pot,. as

seen in Fig. l, and passes in a spiral downward course around the drum to the left-hand side of the tire-pot near the bottom. The partition which forms the roof .of the flue at this point is cut away a little distance from the side wallof the fire-pot, so that,in effect,a flue is made which meeting the fire-pot nearv the lower edge rises vertically along the left-hand wall to the top and then passes back over itself` in a spiral course to the other side of the lire-pot in the front wall'of the stove. The flue continues ascending spirally between the double walls of the drum until it terminates in a connection leading tothe chimney` f. In

.tire-pot and thence along over the roof of the this way it will be seen that the heat radiated j g in the lower part of the flue a short distance after it leaves the fire-pot, which plate serves not only to retain the products of combustion for a longer time within the flue, but also to catch and hold particles of soot and light solids which have been drawn into the flue without being entirely consumed. A door h is provided in the lower part of the drum, through which the dust and soot may be removed from time to time as maybe necessary.

The fuel which I prefer to use in my heater is coal, and I have provided a coal-chute leading from the top of the stove at the left in a diagonal direction down to the fire-pot, opening into the fire-pot on a line with the lower edge of the deector-plate a2. A hole is cut in the deflector-plate, through which the mouth of the coal-'chute' projects. In the operation of the stove the chute may be filled with coal, which will automatically feed itself down upon the re as fast as the coal in the grate is consumed.

For starting the fire I have provided a direct-draft flue i, leadingr from the rear edge of the roof of the fire-pot directly to the chimneyf. A damper 7c is provided in this flue, so that it may be closed after the fire is well under way.` The usual check-damperc' may `be provided in the stovepipe.

To prevent the inflow of cold air over the `top of the fire, I preferably provide a mica front or screen l, which may beset in the grate in the manner of a blower. This has all of the advantages of a blower, with the additional advantage that the light of the tire can be seen through it from the room and may be used or not, as desired.

In the operation of the stove the smoke and products of combustion rising from the grate are thrown forward by the defiector-plate CL2 and passing through the narrow throat left near the roof of the fire-pot enter the iiue, which is formed by the spiral partitions e e. The course of the gases at first is downward around the back of the drum to the other side wall of the fire-pot near the bottom, thence up alongside this wall to the top, then running back to the other side, passing over the top of the fire-pot and following a spiral course around the drum to the chimney.

Having thus described my invention, I claim as new, and desire to secure by Letters Patent, the following:

l. In a heating-stove, the combination with a double-walled drum having a central open court, of a fire-pot or open grate ct set into the side of the drum and extending into the open court, a flue being provided around the drum between the walls thereof, whereby the products of combustion circulating in the drum are reheated by both sides and the top of the fire-pot, and the air in the open court is heated by the rear wall of the fire-pot as well as by the drum, substantially as set forth.

2. In a heating-stove, the combination with a lire-pot a, of a heat-radiating flue connected with the fire-pot on one side, passing around back of the fire-pot to the other side thereof, rising alongside the tire pot, then passing back over itself and continued spirally upward, passing over the top of the tire-pot and finally terminating in a chimney connection, said flue forming an inclosed court o'r heating-drum with the fire-pot set in the side' thereof, substantially as described.

3. In a heating-stove, the combination with a tubular drum having a central court open at the top and communicating with the air at the bottom, of a fireplace or open grate set into the side of the drum, said drum having an Opening or flue through which products of combustion pass from the fireplace into the drum, and partitions in the drum forming a iiue leading spirally around the drum and communicating with the chimney connection at the top, substantially as described.

It. In a heating-stove, the combination with the fire-pot or grate, of a iiue leading from the side of said fire-pot in a downward path around the back of the fire-pot to the opposite side thereof, and thence in a reversed spiral path upward to the chimney connection fortning a central court, the said court communieating with the air at the top and bottom, whereby air entering at the bottom of the court is heated by the spiral flue and passes out at the top to warm the room, as described.

5. In a heating-stove, the combination with a fire-pot consisting of a fireplace or open grate, of a heat-radiating flue connected with the fire-pot on one side, passing around back of the fire-pot and ascending spirally t0 a chimney connection, the said flue forming a central court communicating with the air at the top and bottom, the fire-pot being set into the side of the central court so formed, substantially as set forth.

In witness whereof I hereunto subscribe my name this 14th day of January, A. D. 1901.

FREDERICK D. WOODRUFF.

Vitnesses:

DE WITT C. lTANNER, W. W. LEACH.

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