US1371481A - Fumeless stackless heater - Google Patents

Description

A. J'.HARTFIELD.

FuMELEss sTAcKLEss HEATER.

l y APPLICATION .FILED APILZQ, |918.

Patented Mar, 15, 1921.

2 SHEETS-SHEET l.

A. I. HARIFIELD.

FUI/BLESS sTAc'KLEss HEATER.

APPLICATION FILED APR. 23| 1918.

Patented Mar. 15,1921.

2 SHEETS-SIIEET 2.

@QZQ

`Iy I 4d J7 Ja 30 5 d a I5 rsa PATENTv oFFicE.

AUGUST J. HARTFIELD, OF LOS ANGELES, CALIFORNIA.

FUMELESS STACKLESS HEATER.

Application led April 23, 1918.

T 0 all whom. t may concern Be it known that I, AUGUST J. HART- FIELD, a citizen of the United States, resid-V ing at Los Angeles, in the county of Los Angeles, State of California, have invented new and useful Improvements in Fumeless Stackless Heaters, of which the following is a specification.

This invention relates to that class of heaters generally known as gas heaters and generally used for domestic and similar heating purposes; and it is the object of this invention to provide in simple and inexpensive form an emcient heater which will eficiently deliver heat to the surrounding atmosphere and deliver no objectionable fumes into the atmosphere; although unprovidedl with a draft stack. It is also a particular object to provide such a heater in simple and inexpensive form, capable o t being easily manufactured and assembled.

IVith these and other objects in view my invention will be best understood from the following description of a preferred spe-- cilic forni of deviceembodying the invention, reference'being had for this purpose to the accompanying drawings in which- Figure 1 is a vertical central longitudinal section of my improved heater; Al*`ig.2 is an enlarged horizontal section taken on line 2-2 of Fig. 1; and Fig. 3 is a vertical transverse section taken on line 3--3 of Fig. 1. In the drawings I show a heater which is made up in the formV ofva radiator and, the specific and preferred form herein shown and described, I utilize a central combustion chamber in which the burner is located and on each side of this central combustion chamber I have a plurality of radiating elements 10 through which the heated gases iiow and from which heat is radiated. These radiator elements 10 may be designed in any suitable form and each contain a vertical passage 11' with openings at top and bottom as shown at 12, the outermost elements 10 having openings on one side only. These elements are all held .together and held to the central combustion chamber by .means of bolts 13 and 14, and tight joints are made between thel adjacent elements by means of tapered nipples 15 which lit into the tapered openings 12; the bolts 13 and 14 holding the parts tightly together.V Y j The combustion chamber is made up with side walls 20 preferably of cast iron, and

Specification or" Letters Patent.

Patented Mar. 15, 1921. semi No. 230,359.

with front and back walls 21 of sheet metal in a single piece which has an opening in its central portion passing over the top and forming the top of the element, as indicated at 22 in Fig. The sheet metal 21 is held between the two side walls 20 by having its edges fit into grooves as shown at 24 in Fig. 2, the parts being held together by the bolts. 13 and 14. The side walls 2O have openings 12 above and below, through which communication is established with the radiator elements 11, connection being made through the nipples 15 forming tight joints. y

lWithin the combustion chamber casing thus formed, I place a ring-shaped burner 25 which is supplied with gas through pipe 26 which leads downwardly from the burner and then forwardly to the forward side of the heater. In front of the burner, in the front wall 21, there may be a door 21a, which may be opened for ignitiiig the gas at the burner. The burner has its burner openings 27 placed so that the flame from the burner will be thrown inwardly directly onto a set o f vertical tubes 28 through which the heated air and gases of combustion pass upwardly, as willl be hereinafter described. These tubes 28 may be Vmade of any suitable material; they may be made of fire resisting material, such as fire clay; or they may be made of cast iron. I preferably make these tubes integral with a lower flange 29 and an upper head 30. The lower flange 29 rests upon a shoulder 31 around an opening 32 in the upper part of a cross tube 33 which crosses beneath the combustion chamber immediately below the burner. This cross tube 33 is of annular shape in c ross section at each end, as will be noted by an inspection of the several views, but at substantially its central portion is enlarged to an oval shape and is provided at its top with the circular opening 32. This cross-tube 33 has its annular ends set in grooves at 34 as shown in Fig. 1, and is held in place by the end walls 20 of the chamber being held upon it by the bolt 14. The tubes 28 are thus in communication with this cross tube 33 which communicates with the openings 12a through which coinmunication' is established with the radiator elements 11. The upper ends of tubes 28 communicate with the lower part of a casing 35. This casing35 rests upon the upper head 30 of tubes 28 and its upper end eX- tends to the upper end of the combustion chamber, where it extends into the opening in the sheet metal side piece 21, andis there provided with a perforated cover 36. In thisv casing a removable can 37, is placed, having a perforated bottom as shown at 38, and having preferably a handle at its top at 39 so as to be removable from the casing 35. This can is filled with bodies 40, preferably spherical, formed of a material which will absorb or neutralize the sulfurous and other objectionable fumes in the gases of combustion; The can is easily removable to renew the substance which absorbs or neutralizes the fumes. Various substances may be used'for this purpose, for instance an alkaline substance pressed into the required form.

When the device is in operation, air is drawn in through the open lower end of the combustion chamber upto the burner 25, supplying the burner' with a suiiicient amount of air for good combustion. The flame is projected directly inwardly against tubes 28, heating' those tubes to a high temperature. The products of combustion, and

the heated air along with it, pass upwardly through the combustion chamber around the casing 35, heating that casing and heating its-contents, and then the products of combustion pass out through the openings at the upper end of the combustion chamber into the radiator elements. gases pass down the radiator elements, and the vheat of the gases is conducted and radiated through the walls ofthe radiator ele mentsl into the surrounding atmosphere. The gases are thus cooled and the cooling gases passdownwardly through the radiator elements and thence through the openings at their bottom back into the cross tube 33. Here the gases and air pass upwardly throu the tubes 38 into the casing 35 and can 3%. They are here again heated to a high temperature, both during their passage through the tubes 38 and during their passage through the can 37. The gases, purified by their passage through the material 40, together with the heated air drawn through the burner, are thus delivered through the cover 36 intogthe surrounding atmosphere. Being fumeless, these gases are not objectionable; and they carry into the atmosphere of Ya room a very great amount of heat which would otherwise be lost if the gases werelcarried olf in a stack. It will be noted that the heated gases and air travel in a relatively long and circuitous route through the heater. thereby dropping and radiating all of their heat. It will further be noted that the. subsequent heating of the gases, just prior to their iinal discharge into the atmosphere, not only conduces to eiiicient delivery of heat to the atmosphere, but also assists in causing the Here the hotV proper and rapid circulation of air. through the heater. c .e

While I have proceeded'to describe my invention in some detail and particularity, it will be understoodV that I do not thereby limit my invention to such details as herein described, reserving to myself such changes and modifications as may 'occur to those Y combustion chamber and discharging into atmosphere at its upper end, and a burner in the combustion chamber around the said-vertical tubes and adapted to heat said tubes.

Ina radiator'of the character described, a vertical combustion chamber, a side radiator element in communication with the upper part of the chamber, a cross tube beneath the chamber in communication with the lower part of the side radiator element, a plurality of vertical tubes communicating with and rising from said cross tube, a casing communicating with said tubes and extendngupwardly therefrom within the combustion chamberk and discharging intro atmos phere at its upper end,Y a Vreceptacle in the casing containing fumeV absorbing material, and a burner in the combustion chamber around the said vertical tubes and adapted to heat said-tubes.

3. A. radiator of they character described, comprising a vertical combustion chamber and a plurality lof side radiating elements, the combustion chamber and the side radiating elements having side apertures at top and bottom, means .to hold the chamber andelements together with their aperturesin register, and means to forma tight -joint at'the registering apertures j a `cross tube beneath the combustion chamber and communicating' bustion chamber, a removable cover for the upper end of said casing, and a removable can in said casing having a perforated bottom and adapted to contain a fume absorbing material.

il. In a radiator of the character described, a Vertical combustion chamber, side radiator elements in communication with the upper part of the chamber, a casing extending vertically through the combustion chamber from near its lower end to its upper end and open at the upper end into the atmosphere, said casing being substantially central of the combustion chamber and there being an annular space around the casing Within the combustion chamber, means by which the side radiator elements communicate with the lower end of the casing, and an annular burner in the combustion chamber.

5. In a radiator of the character described, a vertical combustion chamber, side radiator elements in communication With the upper part of the chamber, a casing closed off from and extending vertically through the combustion chamber and open at its upper end, means by which the side radiator elements communicate with the lower end of the casthrough the combustion chamber from one end to a point adjacent its other end and open at one end linto the atmosphere, said interior casing being substantially central of the combustion chamber and there being a space around the same Within the combustion chamber, means by which the radiator element communicates with the interior of the casing, and a burner in the combustion chamber, the gases of combustion passing through the radiator element and making their exit through the central casing in the combustion chamber.

7. In a radiator of the character described, an elongated combustion chamber, a radiator element in communication with one end of the combustion chamber, a casing extending through the combustion chamber from one end to a point adjacent its other end and open at one end into the atmosphere, said interior casing being substantially central of the combustion chamber and there being a space around the same Within the combustion chamber, means by which the radiator element communicates with the interior of the casing, a burner in the combustion chamber, and a fume absorbing material in said casing through which the heated gases of combustion must pass before discharging, the gases of combustion passing through the radiator element and making their exit through the central casing in the combustion chamber.

In Witness that I claim the foregoing I have hereunto subscribed my name this 16 day of April, 1918.

AUGUST J. HARTFIELD.

Witness: Y

VIRGINIA I. BERINGER.

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