US2297776A

US2297776A - Air-heating fireplace

Info

Publication number: US2297776A
Application number: US386340A
Authority: US
Inventors: Edward T Kelley; Guy F Fenton
Original assignee: Individual
Current assignee: Individual
Priority date: 1941-04-01
Filing date: 1941-04-01
Publication date: 1942-10-06
Anticipated expiration: 1959-10-06

Description

Oct. 6, 1942. E. T. KELLEY ET AL 2,297,776

AIR HEATING FIREPLACE Filed April l, 1941 2 Sheets-Sheet l l 5&5 f; s

lll' 476 /f Il' 3e 40 Wwf, L 427 i H|l|I 1 6 29 h- '753/ lll" i; f 1 26 f.

2O "i if 26 /3 l fr' E. T. KELLEY ET AL Oct. 6, 1942.

` AIR HEATING FIREPLACE Filed April 1, 1941 2 Sheetg-Sheet 2 Edward/fede www Patented Oct. 6, 1942 UNITED STATES l PATENT OFFICE AIR-HEATING FIREPLACE Edward T.

Kelley and Guy F. Fenton,

Clearfield, Pa.

6 Claims.

tail relates to an air-heating fireplace found to have exceptional advantages in manufacture, installation and service. It has been previously found that the space immediately around the walls of a fireplace may be utilized as passageways for indirectly heating currents' of air.

It is an object of our invention to produce a fireplace built. up from sections of hollow fire clay, iron, steely terra cotta or other fire-resistant materials. Such sections may be designed for intertting assembly and may permit the construction of a fireplace having varying dimensions. vThus the width of the fireplace may be varied by Change in the rear sections only and the depth of the fireplace may be varied by the replacement of side sections by larger ones.

The intertting character of the sections permits the ready replacement with a new section of any which may have become unserviceable.

A further object of our invention is to construct the fireplace of plastic material such as `fire clay or the like which will have inherently poor conduction of heat. In this way the fireplace may be assembled in the structure of the house with less protection required .against the risk of overheating than would be the case if the material were metallic or a similar good conductor of heat.

A'n additional object of our invention is to improve the manner in which currents of heated air are created for warming the room apart from the radiation from the front of the fireplace.

An incidental object of the invention is to separate the airpassageways of the two 'sides of the fireplace so `that the heating effect on feach side will be separate from that on the other side. Thus the delivery of heated air will necessarily occur on the side in which the air is received. Also it will permit adjustment of the amount of heated air by closing the passageways on oneside only thus making the air passageways on that side into dead air spaces.

The particular arrangement of the air passageways is such as to baille or retard the flow of air being heated so that its absorption of heat during the travel through the device will be increased.

In the construction of the'individual sections of our fireplace, extra strength is obtained by the walls of the passageways as reinforcements.

so that it will Aconform to the smoke box' above without the necessity of further adjustment.

Other and further objects of our invention will be evident from the detailed description which follows of our preferred embodiment in which Fig. 1 is a perspective View of the fireplace with parts broken away;

Fig. 2 is a plan view o f the rear base member;

Fig. 3 is a front elevation of the same with parts broken away on, the line 3-3 of Fig. 2;

Fig. 4 is a plan view of the rear top member;

Fig. 5 is a front elevation of the same partly in section on the line '5-5 of Fig. 4;

Fig. 6 is a vertical cross-section on the line 6-6 of Fig. 5;

Fig. 7 is a front elevation of the left base member and Fig. 8 is a vfront elevation of the left top section. ,i

We have found that it is feasible to construct our fireplace entirely from ceramic material Note is made that the assembled fireplace has accurate measurements.

such as i'lre clayy terra cotta or similar compositions.

These have the advantages of being fire-resistant and also are approved building materials for surrounding flues and the like. By constructing the several sections of our fireplace in this manner, they can be individually cast or molded and separately fired. They can be given Thus they may be fit-1A tedtogether and cemented to form a unitary self-sustaining fireplace. v

Referring to Fig. l it will be noted that the structure comprises a lower back section I I upon which an upper back section I2 rests. Lower side sections I3 and I4 extend forwardly from the left and right respectively of the lower base section Il. A suitable angle between the front walls of the section is selected and this determines the shape of the intertting edges of the passageways and also that the passageways Will vent only through the exit or outlet ports.

The customary damper will be pivoted across the top of the upper side sections I5 and I6 in front of the upper back section I2.

A smoke box preferably in the form of a pyramid will rest upon the upper sections I2, i5 and i5 and connect the fireplace to a suitable flue.

The lower back section Il is constructed in the manner shown in Figs.- 2 and 3. There is an outer wall I1 and a parallel front wall i8, the ends of'which are rabbeted to receive the Walls of the side sections. The top wall i9 connects the walls I1 and I8 and has its edges sloped'backl at an angle determined by the flare of the side sections I3 and I4. A corresponding bottom 2B runs from side to side of the section. Centrally the section has a vertical partition 2I which connects the top, bottom and front and rear walls. Running outwardly from the partition 2i on each side thereof is a slightly inclined partition 22.

Intermediate the bottom 20 and the partition 22 is a baiile 23 which is inclined upwardly toward the center partition but is spaced therefrom to form a passageway. l

The outer edges of the top, bottom and both partitions are in a common vertical plane as indicated.

Cooperating with the lower back section are lower side sections I3 and I4. The lower side section I3 is shown in detail in Fig. 7. Here there is an outer wall 24 and this is cut away to form an inlet port 25 (see Fig. l).

The end Wall 26 extends the full length from the bottom 21 to the top of the section. A top 28 is spaced from the end wall 2B to form an outlet port 29. The wall 30 extends over the entire front of the section with the exception of a. small Vertical area at the right which is intended t register with the open edge of the rear section II. A lower partition 3| extending between the rear wall 24 and the front Wall 30 also intersects the end wall 26 above the inlet port 25. At its opposite end it rits beyond the baflie 23 of the rear section as shown in Fig. 1.

In like manner an upper baffle 32 extends from the rear edge of the section I3 forwardly to the outlet port 429. It inclines slightly upwardly and forms acontinuation of the partition 22 of the rear section.

The right lower side section is similar to the left lower side section just described with the exception that the arrangement of the ports, partitions and baiiles'is reversed.

The lower rear section II supports an upper rear section I2. The back wall 33 vof the upper section is in the' same vertical plane with the back Wall I1. However, the front wall 34 slopes forward toA formthe throat of the chimney in the usual manner.

The top 35 of the section thus forms a smoke shelf as shown in Fig. 4.

The rear wall 33 is suitably rabbeted at its ends to fit the side sections. The bottom Wall 36 of the section conforms in shape to the top Wall of section I I as shown in Fig. 2.

A vertical central partition 31 extends between the bottom, top, front and rear walls. i

A baille 38 extends between the front and rear walls onV each side of this section inwardly toward the center partition but spaced therefrom toform a passageway. As shown in Fig. 4this baffle is sloped up and back.

Above the baille 38 a partition 39 extends outwardly from the center partition 31. The partition 39 is sloped up and forwardly as shown in Fig. 5.

The outer ends of top, bottom, baille 38 and partition 39 are in a common vertical plane sloped backwardly as shown in Fig. 4 in order to nt the side of the corresponding upper side sections.

The upper left side section is shown in Fig. 8 to consist oi a vertical outer wall 40 which is cut away atone corner to form the outlet port QI. The top 42 extends over the outlet port 4I and contacts the front end 43.

The opposite or rear end is opened while a bottom 44 extends forwardly to an inlet port 45 reglstering with the outlet port' 29 of the lower side section.

The front wall 46 ts from the top 42 to he bottom 44 and inwardly from the front end 43 to a sloping edge determined by the forward slope if the throat or front 34 of the upper rear secion.

A partition 41 slopes to the rear from the front end s3 to the opposite free edge of the section. Here it contacts with the rear wall'33 of the upper rear section and registers with the edge of the bae 38.

A similar partition 48 extends upwardly and forwardly from the rear free edge of this section to the corner of the port 4I. A short `Wall 49 rises vertically from the front edge of partition 48 to the top 4I. The partition 48 registers at its rear with the partition 39 of the upper rear section.

The right upper side section I 6 issimilar to the one just described with the exception of the reverse arrangement of the several parts.

Each section of the fireplace is constructed separately by molding, casting or other mode of fabrication. It is then red. This mode of manufacture can be done at a central point or may be carried outI at the locality where it is intended to supply these fireplaces. Risks and high cost of transportation may thus be minimized.

The several sections have intertting portions by which they may be interchangeably assembled or new sections inserted to take the place of any others which may become unserviceable. The assembly may be done by relatively unskilled labor as it requires only the application of furnace cement.' The arrangement and spacing is determined by the form of the sections themselves. A bricklayer can lay it up without measurements and every piece will immediately lit in its proper place. After the replace is set up and cemented, a brick or stone facing to match the room or architecture of the building, can be built around it.

By assembling the lower tier of sections and then mounting the upper tier over them, it is Y* easy to see that all joints are smoke tight. The completed structure is rigid, self-supporting and lso capable of supporting the customary smoke Heat from the re will walls of the sections and necting passageways.

pass through the inner heat the air in the con- By reason of the baling, the air on each side of the fireplace is independently heated. The air will be givenl the maximum amount of heat before it is permitted to escape into the room from the port 4I. However, by blocking either inlet port passageways on that side will be closed and vbecome dead air spaces.

The construction of the several sections with the intermediate partitions and bailles serveslto give added strength and to retain the desired form through the process of manufacture and ring. 'Ihe added strength is a feature of the completed device.

While we have described above in detail the 25, the airy preferred form of our invention, it is to be understoodthat various changes in minor details including materials, proportions and the like are possible Within the scope of the appended claims. What we claim is: 1. A replace comprising a hollow back with a vertical partition on its center line and having open ends and transverse baliies extending inwardly therefrom to points spaced from the vertical center line of the. back to form interconnected passageways, upper and lower side sections open on the ends adjacent'the back, each side section being cut away at its `base to form an inlet port and being cut away at its upper portion to form an outlet port and baiiies in said side sec'.-

tions forming passageways connecting said ports with the passageways in the back.

2. A replace comprising a hollow back having a vertical median partition, open ends and hori- 'zontal' baliies forming passageways inwardly spaced beneath each inclined partition, upper and lower hollow side sections open on the ends adjacent the back, each side section being cut awayat its base to form an inlet port and being cutaway at its upper portion to form an outlet port and partitions in said side sections defining passageways in s aid side sections connecting said ports with the passageways in the back formed Iby said baiiies and partitions.

vertical median partition and open ends, an inclined partition extending from each vertical partition to each open end, an inclined baille spaced beneath each inclined partition, hollow upper and lower side sections open on the ends adjacent the back sections, each side section being cut away at its base to form an inlet port and .being cut away at its upper portion to form an outlet port and partitions in said side sections defining passageways .in said side sections connecting said ports with the passageways. in the back formed by said baies and partitions.

5. A replace comprising a. back -formed of superposed upper and lower hollow sections, each sectionI having avertical median partition and open ends, an inclined partition extending from each vertical partition to each open end, 'an inclined baiiie spaced beneatneach inclined partition, upper and lower hollow side sections open on the ends adjacent the' back sections, each side section being cut away at its base to form an inlet port and' being cut away at its upper portion to. form an outlet portand partitions in said side sections defining passageways in said side secj tions connecting said ports with the passageways -formecl in the adjacent back sections by the said baiiles and partitions.

6. A fireplace comprising a hollow back of cerainic nre-resistant material and having openl between the front ports and the passageways in the back formed by said iirst named partitions and baiiles.

EDWARD T. KELLEY. GUY F. FENTON;