US1645586A

US1645586A - Air-heating system for fireplaces

Info

Publication number: US1645586A
Application number: US160029A
Authority: US
Inventors: Joseph M Cesa
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-01-10
Filing date: 1927-01-10
Publication date: 1927-10-18
Anticipated expiration: 1944-10-18

Description

Oct. 18, 1927. 1,645,586

J. M. CESA AIR HEATING SYSTEM FOR FIREPLACES Filed Jan. 10, 1927 INVENTOR.

Patented Oct. 18, 1927.

.iosnrn M. CESA, or nnrrrocn, canrronnrn.

AIR-HEA'IIN G SYSTEM- -FOB FIREPLACES.

Application filed January 10,1921. .Serial No. 160,029.

vThis invention relates to improvements in means for heating and circulating air, through the rooms of ahouse by means of theheat from the'fire of, an ordinary open fireplace; and' particularly represents a modification or enlargement of the arrange, ment shown in my PatentflNo, 1,609,693

' H dated December 7th, .1926. In the previous device a blower was utilized to create an 10 artificial air draft or current, which air was forced through the drum in the fireplace and issued thence in ,a heated condition from the registers or vents disposed at various points in thehouse. .l/Vhen'the blower was not in operation there was no appreciable circulation of air through the drum, and therefore no heatedair issued from the registers.

. The principal object of the present invention-the'refore is to modify or enlarge the abovev arrangement of parts by providing means for enabling a natural circulation of air through the drum to be automatically maintained when desired, when the operation. of ,the blower isdiscontinued, so that the heated air will continue to issue into one room or another to keep the air therein at a desirably high temperature. WVith this imj proved arrangement it is not necessary therefore to run the blower continuously in order to obtain the benefits from my air heatingdevice and the cost of operation of the system over a given period'of time may be considerably reduced.

A further .object of the invention is to produce a simple and inexpensive deviceand yet one which will be exceedingly effective for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as willfully appear by a perusal of the following specification and claims.

- In the drawings similar characters of f reference indicatecorresponding parts in the several views:

nary fireplace showing my improved air heating arrangement installed in connection therewith.

Fig. 2 is a fragmentary sectional elevation of the apparatus showing a modified arrangement of the hot air discharge pipe.

Referring now more particularly to the characters of reference onthe drawings, the main features of the system, as before, comprise a vertically disposed rectangular drum 1 set against the back of the fireplace 2, the

Fig. 1 is a sectional elevation of an ordi-- drum projecting upwardly from the bottom of the fireplace to a point adjacent the chimney 3, The drum then turns outwardly to form a horizontal portion 4, from the outer end of whicha downwardly projecting portion 5 depends said latter portion being of course spaced from the front of the base of the chimney sufiicient to enable the, products of combustionfrom the fire in the fireplace to pass freely to and up the chimney. A longitudinal partition 6 in the drum extends fromthe bottom thereof to: a point short; of the bottom of the outer end portion 5, This partition dividesthe drum into two separated compartments 7 and 8, the former in the main rear portion-of the drum being at the back of the fireplace. The

bottom of the compartment .7 is connectedto an intake pipe 9 which extends downwardly therefrom and isconnectedtothe discharge of a blower lOof suitable character located in the basement or elsewhere as may be desired. From the bottom of the compaitment 8 a dischargepipe ll leads under the floor 12 of the building, said pipehaving one or more discharge registers or outlets l3 projecting into any desired room of the house to discharge the heatedair into. the same at a point adjacent the floor. The above parts are thesame as shown andfdescribed in, the previous patent, audit, will be seen that when the bloweris in operation the circulating air will pass. upwardly through the pipe 9 into the drum throughthe compartment 7 for the full length thereof, then into. and through. the compartment 8, and thence into the -pipe 11 to discharge into the room through the register 13. This direction of the flow of airis shown by the.

The. air passing solid arrows in Fig. 1. through the drum is heated by the heat from the fire in the fireplace so that "when itissues from. the register l3, said air .is still in a heated condition. v

\Vith this arrangement there is no circulation ofair to'any appreciable extent when the operation of .the blower is discontinued. as will be obvious. My additional feature whichenables the desired circulation of air to be maintained when the blower is not in operationcomprises an additional outlet passage leading from the top of the drum directlyinto a; room ata level higherthan that of'the register- 13. In the arrangement shown in Fig. 1, the fireplace is presumed as occupying an interior position in the building, so that there are rooms both in front of and behind the fireplace. In this case the additional drum outlet 14: preferably leads through the back of the fireplace into the room beyond. in the arrangement shown in Fig. '12 the fireplace occupies a position in the exterior wall of the building, in which case the drum outlet let projects forwardly of the drum into the same room as that in which the fireplace is located. Both arrangements of outlet have a suitable shutter or damper device as at 15 arranged to be manually manipulated so that the outlet may be opened as much as desired or entirely closed. The latter position of the shutter is had when the blower is in use so that said outlets 14: or 1% do not then function;

. If the blower is discontinued however the shutter is opened, and since the outlet M is higher than the register 13 (toward'whicli the colder air in the room naturally gravitates) a circulation of air from the register to the outlet 14 will, be had. in other words relatively cold air enters the pipe 1 1 from the register 13, moves along said pipe into the drum 1, along the compartment 8 (which is nearest the fire) for the fuil length thereof, and thence into the upper portion of the compartment 7 and out through the outlet 14 (or is as the case may be). The direction of movement of this current of air is shown by the dotted arrows in Fig. 1 and, as will be evident, is the reverse of the direction had'when the blower is operating. This re versed circulation of air by means of which hot air is discharged into a room from the upper drum outlet will continue as long as a fire is maintained in the fireplace or as long as the temperature in the room at the level of the outlet l t isgreater thanthat at the level of the register.

From the foregoing description it will be readily seen that I have produced such a'device as substantially fulfills the objects of the invention as set forth herein.

While this specification sets forth in cletail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.

Having thus described my invention what I claim as new and useful and desire to secure by Letters Patent isz' 1-. In combination, a drum to be mounted in a fireplace to be subjected to the heat of a fire therein, means dividing said drum into two vertical compartments, said compartments being arranged to communicate with each other at their upper ends,anintake passage leading to the bottom of one comartment, an outlet passage leading from the ottom of the other compartment, said outlet passage leading to a room, means for setting up a forceful circulation of airthrough the drum compartments from the intake passage to the outlet passage, and another outlet from the drum; said outlets being arranged in height relative to each other so that when the operation of said circulating means is discontinued a natural circulation of air may be set up from the first named outlet through one of the drum compartments to the last named outlet.

In combination, a drum to be mounted in a fireplace to be subjected to the heat of a fire therein, means dividing said drum into two vertical compartments, said compartments being arranged to communicate with each other at their upper ends, an intake passage leading to the bottom of one compartment, an outlet passage leading. from the bottom of the other compartment, said out-let passage leading to a room adjacent the floor thereof, means for setting up a forceful circulation of air through the drum compartments from the intake passage to the outlet passage, another outlet from the top of the compartment of the drum to which the intake passage is connected, said-last named outlet leading to a room at a level higher than that of thefirst named outlet, and a manually operable shutter in said last named outlet. V r

.3. In combination, a drum to be mounted in a fireplace to besubjected to the heat of afire therein, means dividing said drum into two vertical compartments, said compartments being arranged. to communicate with each other at their upper ends, an intake passage leading to the bottom of one coinpartment, an outlet passage leading from the bottom of theother. compartmenu'said .outlet passage leading to a room adjacent the floor thereof, means for setting up a forceful circulation of air through the drum compartments from the intake passage to the outlet passage,'another outlet from the drum;

said last named outlet.

4. An air heatingsystem comprising an air passagemember to be mounted in a fireplace to be subjected to the heat of a fire therein, an inlet-to one end of said member, an outlet passage from the other end of the member leading to. a room, means for setting up a circulation of air through the passage member from the inlet to the outlet, and an other normally closed outlet from the passage member in spaced relation to the first named outlet and terminating in room at'a higher level than said first named outlet.

In testimony whereof I affix my signature.

JOSEPH M. CESA.