US2109876A - Warm air furnace - Google Patents

Description

D. R. BARD WARM AIR FURNACE March 1, 1938.

Filed April 1, 1957 l BUR ER 3 Sheets-Sheet 1 a r M; ff. 50rd Much 1,1938. D. R. BARD I ,109,876

- WARM AIR FURNACE Filed April l,- 1937 3 Sheets-Sheet 2 I I f v 32 I I515 1 'A|R\ 28 1 23 2/0 I z? 22%"; H Z5] [25 cio 31 24 :JL 1 l I MW 00/6 Bard D. R: BARD 2,109,876

WARM AIR FURNACE Filed April 1, 1937 March 1, 1938.

3 Sheets-Sheet 3 roent enir; 1, less W at Ami-memos Dale E. BMW, Bryon, @hio Application e s ll, new, Serial No. access to E arranged in superposed relation laterally of the radiator in a neat and compact manner at one end portion of the furnace, such that the air is forced. by the blower into the-lower end of the radletcr who. is heated during its upward trevel.

Ulther objects and advantages oi the invention will hereinafter appear and for purposes of illustrction but not of llmitstion, on embodiment is shown on the occomwsnylnc drawings in which Figure l is s side elevation of the iurnooe with o. portiorl oi the shell or outer cosine hrolren cwsy to show the construction of the ports;

Fig. 2 is s trcnst'erse sectional elevation sch stsrltislly on. the line 3-?! ct lite. .i;

Fig. 3 is e vertical sectionelelevotlon scheme- 'tisily on thelloe til-53 oi" l;

Fig. t is so cool elevctiorl oi" the furnace with some of the ports oi-cites owes] to show the men not in which the oil burner is mo'lmteo sml the manner in which the air stream is divided as it is torcecl into the reclletor chamber;

it is o transverse sectional elevation twitch through the upper enrl portion of the resistor structure showing by arrows the trcvel of the products of combustion;

Fig. t is c vertical. sectional elevstioh substantisllw on the line t--t of Flo. i showlnw the hefie adjacent the smoke pipe; l Fig. 7 is e. transverse section sulostchtlolly on the line ll-l oi Fig. 8 looking upwerfiy into the inclined tches sml showing the some piste in position, who.

Flo. 8 lo en enlarged trscmeritorw werticcl sec tioncl View substantially on the line t -t of l te. t. The illustrated-embodiment oi the invention comprises e. worm sir furnace ha rless outer shat motel cool cosine; or shell it which is of is rectshsulorin shape. The shell is divir'leti intotwo compostmerits by means of o-tertlcolly disposed partition M. In one compartment are dispos'eslthe combustion chamber and radiator til I audio the other compartment are disposed o blower lt which is on o horiwcntsl one} encasement to the blower cool burner structures.

(cl. res-41c) platform it, and directly therebenesth on oil burner it. The blower it, which preferably consists of a squirrel cage type fen driven by on electric motor it, draws in cold air through an opening ill in the top'of the shell or we I 5 it through filters lit of glass wool or other suitable material and forces the stream oi sir into e. downwardly clisposec conduit it which is lusts posed to the partition ll.

The conduit it is some into two sections by means oi a, partition member 2t which extends from one side of the conduit to the other see. The front end of the partition is opened end the resr end. is closeol except for on opening fill through which the nomle' oi the oil homer it etztencis; the opening ill leading flirectlw into the combustion chemloer. its shows is l, the

lower one! of thecono'uit inclines team's-wally so thst sir is directed. lots the lower earl of the interior of the rest compartment. $535 tiiwitiimz the air into the two streams, more eficieltt Priestlng thereof is obtained. It will he ep c-erect clue to the compact arrangement oi the mower and humor, the size of the insttlllctiolz is matte rlelly retlucecl-sncl theorist tlrlereot is reeluceci to a minimum.

The irorlt encl of the shell is its" to zlcrlelv t2 hovimg louvres lo the lower wortlow cool this panel may he removed to cfiorcl tweets It will imtlerstoocl that my switeole t me of oil homer til oi the pressure type my toe employed.

Disposed in the resrwei-el comrlortmetlt of the cosine, it ere the malls-tor who combustion chose her structures. its shows is. Figure lees .tl suowort c clsltlorm on which the fire hrlcle. structure tt ls scpoortecl. Rising from the slot-- form 2t ore tour side wells 2?! of the rctiiotce cool to the upper emls of the wells is connected the too well. lit.- Fol'merl to oppcseil sitle wellsv 2?! ere s series of upwardly who inwsrcllw iocllhieol open-entice tubes 2% which are stilcstswtlolly rec tcnscler or soucreiii crose section. The mower "terminotes dlccoholly with respect to the citte WHERE; Connected to the projecting lower portions of the tubes 2t and Joined to each set of three tubes on that mule is s deflector or-loeme plate fit which curves outwsrcily sod downwardly. the lower oortlorl thereof below suhstcwtlelly worsllel to the Eli -wall of the radiator.

pensive structure is produced but one which eihciently imparts heat to a very large volume of air introduced to the rear compartment of the shell.

As shown in Figure 5, the tubes 29 on each side are spaced from each other and the outer tubes are spmed from the adjacentwells El. This enables the products of combustion inside the radiator to pass upwardly within the combustion chamber C between the tubes and to contact with each side of the tubes over the major portion thereof. Extending reerwardly from the upper end of the combustion chamber housing is a pipe ill which may lead to the ususl smoke stack, providing an exhaust passage for the products of combustion. The arrows on Fig. show the travel oi the gases within the upper portion of the combustion chamber and indicate how the heating oi the tubes is accomplished.

To insure that the heated gases or products of combustion do not pass directly to the smoke pipe 3i, but to cause the some to more nearly follow the path indicated by the arrows on Fig. 5

so that the gases pass around the major area of the individual dues or tubes 23, a bailie plate 33, substantially triangular in shape fits in between the rearxnost pair of tubes es. The basic plate 33 has its lower end resting against a brackat M and isprovlded with a combined handle and reinforcing piece it on its under side. The upper end oi. the baille 3% bears against a bar til which is spaced a short distance beneath the top Since the baflle 33 is directly in front oithe smoke pipe 3i and comrs the space between the rearmost pair of tubes 25, the gases and other products of combustion must pass upwardly over the battle plate 23 or in rear oi the upper portions of the tubes 1'5 as will readiiy be apparent.

As best shown in Fig. '7, the space on each side of the *lower end or the plate 93, adjacent the lower end thereof, is closed in any suitable man nor by s filler piece 31 leaving a relatively small opening 38 at each end so that soot and the like will drop through the opening 58 into the combustion chamber. In use, the chamber, divided by the baille plate 33 and the rear wail of the radiator it, may receive soot, etc. and in order to clean out that pocket, the baffle plate 3; may

be inclined upwardly and rearwardly and thus be removed-access being had thereto through the clean-out opening 39.

It is to be understood that numerous changes in details of construction, arrangement and operation may be effected without departing from in the appended claims.

What i claim is:

l. A warm air furnace comprising a. shell, a.

partition dividing said shell into inner and outer portions, a combustion housing within the inner portion of said shell, means providing a conduit leading from the upper to the lower portion oi said shell for admitting cold air, a platform dividing said outer portion of said shell adjacent the conduit into upper and lower compartments, a blower in the upper compartment on said platform for forcing air into said conduit, an oil burner in the lower compartment, and means providing an opening for the oil burner nozzle through said conduit.

2. A warm air furnace comprising a shell, a partition dividing said shell into two chambers, a fuel burning device and a blower disposed in one chamber and arranged in vertically spaced relation one above the other, a cold air duct Junteposed to said partition and leading downwardly from said blower to the lower portion of the second chamber, a. radiator in said second chamber, and means in said duct for dividing the air stream and also affording connection of said fuel burning device with the interior of said radiator.

3. Awcrm air furnace, as claimed in claim 1,

wherein the opening providing means is disposed one chamber and arranged in vertically spaced relation one above the other, a platform for supporting said blower, a radiator in said second chamber. a cold air duct juxtaposed to said partition and leading from said blower to the lower end of said radiator, and means in said duct providing an opening to said radiator and sealed from the interior of said duct to enable a portion of said fuel burning device to extend into said radiator.

V DALE R. BARD.

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