US1795539A - Gas steam radiator - Google Patents

Description

Marqh 10, 1931.

' Original Filed June 2, 1927 G. W. BLACKMORE GAS STEAM RADIATOR 2 Sheets-Sheet l ,FIGJ.

M r 1931- G. w. BLACKMORE GAS STEAM RADIATOR 2 sheets-sheet 2 Original Filed June 2, 1927 Patented Mar. 10, 1931 UNITED STATES PATENT OFFICE.

GEORGE W. IBLACKMORE, F PITTSBURGH, PENNSYLVANIA, ASSIGNOR TO AUTOMATIC GAS STEAM RADIATOR COMPANY, OF PITTSBURGH, PENNSYLVANIA, A CORPORA- TION OF PENNSYLVANIA GAS STEAM RADIATOR Application filed .Tune 2, 1927, Serial No. 195,884. Renewed August 2, 1930.

My invention relates to heating apparatus and is herein particularly described in connection with gas steam radiators, although it is adapted for use with other types of heaters.

In the use of gas burners particularly adapted for residences difficulty has heretofore been experienced by reasonof the escape of the products of combustion into the space being heated with a resultant undesirable condition of the atmosphere. 'It has heretofore been proposed to connect such heaters to a flue or chimney in such manner that the products of combustion are discharged from the flue. V

However, when such flues are connected directly to the outside atmosphere as through a chimney, difliculty has frequently been experienced due to back drafts extinguishing the pilot light for the burner, and occasionally extinguishing the burner itself. It has been found that such back drafts are of a brief transitory nature, but that the pressures built up are considerable. This ressure, when suddenly applied to the urner, frequently results in extinguishing the pilot flame and occasionally in extinguishing the main burner.

I provide a heating device such as a radiator havingwater sealed therein, 0f. such constructionthat the, products of combustion follow awe'll defined path in their escape to the flue but in which provision is made for permitting the back-draft'toescape from the flue without passing through the combustion chamber. Y a 1 I provide a radiator ofa desired number of units each of, which is provided with a lower chamber for constituting a portion of the combustion chamber. The remainder of the unit is shaped toprovide a plurality of openings through which air may circulate, and provision is madefor aifluid passageway between adjacent units. When the units are assembled, a few quarts of a fluid such as water are placed in the radiator and it is sealed up after which the fluid is vaporized to dissipate heat to the surrounding atmosphere through the radiator walls.

In order to prevent the escape of'the products of combustion to the surrounding atmosphere, I provide each radiator or unit with complementary flanges that unite to form a shield extending upwardly substantially to the flue opening. Other flanges unite, to constitute a: second shield extending across the radiator in parallelism to the axis of the flue outlet and downwardly at a distance from the first shield whereby a passageway is formed between the two shields such that a back draft moving down the flue is permitted to escape between the shields without passing through the combustion chamber.

In the accompanying drawings, which illustrate the present preferred embodiment of the invention:

Figure 1 is a side elevation of a radiator embodying my invention;

Figure 2 is a view, partially in elevation and partially in section, of a portion of the radiator unit taken along the section line II-II of Figure 1;

Figure 3 is a plan view of a radiator section taken along the section line IIIIII. of Figure 1; and

: Figure 4 is a fragmentary View, partially in elevation and partially in section,v of a radiator unit embodying a modified form of my invention;

Referring to Figure 1, the radiator unit comprises a pair of end sections 2 between which a plurality of radiator units or sections 4 and 5 are inserted and held together by stay bolts 6. Each of the radiator units 2, 4 and 5 is provided with outwardly projecting flanges 8 cooperating to receive couplings constituting fluid connections therebetween. One face of each of the end units 2 is provided with a vertically extending flange 9 engaging and cooperating with vertically extending flanges 10 along the ed es of the adjacent radiator units 4 and 5 such that one face of the lower portion of the radiator is made substantially air-tight.

At substantially the center of the radiator the flanges 9 and 10 are directed inwardly as at 11, for a distance materially in excess of half the width of the radiator where they are bent downwardly as at 12.

The radiator units 2, 4 and 5 are also provided with complementary curved flanges 14 extending upwardly from the bottom of the radiator for an appreciable distance above a combustion chamber 15 and are then directed inwardly and upwardly as at 16 along the center line of the radiator for a distance materially less than that of the flanges 9 and 10. By reason of the spaced relation between the ends of the flanges 12 and 16, a plurality of passageways 17, collectively constituting a main passageway, are formed between the radiator units 2, 4i, and above the combustion chamber and to the left of the flanges 14: as viewed in Figure 2.

Portions of the columns of the radiator unit 5 may be cut away and closed as at 18 by welding or caps, or they may be initially cast to shape as may be desired for constituting a smoke chamber 13 extending horizontally across a portion of the radiator below the flanges 11, and communicating through a cover plate 19 with a. chimney or flue 20. The chamber thus formed is in communication with the combustion chamber 15 between the flanges 9, and 16 and is also in communication with the atmosphere between the flange portions 12 and 16.

Referring to Figure 1, the plate 19 may be shaped to fit over the curved surfaces of the radiator unit 5 and between a pair of adjacent radiator units 1.

Any suitable burner 21 may be inserted in the combustion chamber and connected to a gas line 22 by any suitable type of fixtures indicated diagrammatically at 24. The

' burner 21 is provided with a pilot light 25 and a main jet 26. The radiator units 2, 4: and 5 are partially filled with a suitable fluid 27 such as water, and sealed.

During the operation of the heater, the burner 21 is lighted and vaporizes the fluid 27. The vapor circulates in the connected radiator units 2, a and 5 for heating the surrounding atmosphere. The products of combustion from the combustion chamber 15 pass upwardly between the flanges 9, 10 and 14 and are directed by the flanges 11 to the chamber 13 formed in the radiator unit 5 and outwardly into the flue or chimney 20. By this construction the liberation of products of combustion into the room or space being heated is avoided.

In the event that aback draft should move down the fine 20, it enters the chamber in the radiator unit 5 and moves therealong until the flanges 12 are engaged, when it is directed downwardly and laterally outside of the flanges 16 and escapes into the open air without passing through the combustion chamber 15. This construction eliminates the danger of the pilot light 25 and the main jet 26 being blown out.

Referring to Figure 4, I have shown a modified radiator unit or section 31 which may be used in lieu of the radiator unit 5. In the radiator unit 31 the cut-away radiator greases columns are supplanted by a continuous lower surface 32 and a cast upper face 84. This form of my invention operates in the same manner as do the modifications shown and described in connection with Figures 1, 2 and 3, inclusive.

Accordingly, I have provided a gas steam radiator for use in residences and other places where it is desired to burn gas without polluting the air and, at the same time, to avoid the danger of having the burner accidentally blown out due to back drafts from a connected flue or chimney. I accomplish this result by providing the radiator with a plurality of shields or guiding surfaces such that the products of combustion are led to the flue through a passageway that enters an intermediate point in a chamber from the further end of which another passageway extends downwardly and outwardly to the atmosphere. A back draft in moving down the flue enters the chamber, moves thereacross and escapes through the latter passageway withoutpassingthroughthecombustionchamher. This action is due in part to the lower resistance oifered by the second passageway than by the path leading through the combustion chamber. My invention may be practiced with but slight modification of radiator units now on the market.

It is to be understood that various changes in the invention may be made without departing from the scope of the appended claims.

I claim:

1. In a radiator structure, a plurality of radiator sections, each comprising a plurality of separated vertically extending columns defining passageways for a heating medium, a combustion chamber formed by the bases of the assembled radiator sections, complementary flanges carried by the radiator sections defining an upwardly extending passageway for combustion gases developed in the combustion chamber, an intermediate radiator section having a space formed by omitting portions of certain of the vertically extending columns, a flue connection for the radiator substantially opposite said space, flanges on opposite sides of said intermedi .ate radiator section, said last mentioned. flanges extending horizontally of the radiator section above said space and beyond the first mentioned flanges to form a passageway for the escape of back drafts from the flue con nection without traversing the combustion chamber.

2. In a radiator structure, a plurality of radiator sections, each comprising a plurality of separated vertically eXten din g columns defining passageways for a heating medium. a combustion chamber formed by the bases of the assembled radiator sections. comp1ementary flanges carried by the radiator sections defining an upwardly extending passageway for combustion gases developed in the combustion chamber, an intermediate radiator section having a space formed by omitting portions of some of thevertically eX- tending columns, a flue connection for the radiator cooperating with said space, flanges on opposite sides of said intermediate radiator section, said last mentioned flanges extending horizontally of the radiator section above said space and beyond the first mentioned flanges and having oflset portions extending downwardly toward but spaced from said first mentioned flanges to form a passageway for the escape of back drafts from the flue connection without traversing the combustion chamber.

3. In a radiator structure, a plurality of radiator sections, each having a plurality of vertically disposed columns, a combustion chamber formed in the base of the radiator, complementary flanges carried by the radiator sections defining an upwardly extending passageway for combustion gases developed in the combustion chamber, an intermediate radiator section having a space formed by omitting portions of some of the Vertically extending columns, a flue connection fonthe radiator cooperating with said space, flanges on opposite sides of said intermediate radiator section, said last mentioned flanges extending horizontally of the radiator section above said space and cooperating with the first mentioned flanges to form a passage way therebetween for the escape of back drafts without traversing the combustion chamber.

In testimony whereof I have hereunto set my hand.

GEORGE W. BLACKMORE.

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