US1663937A - Heating appliance - Google Patents

Heating appliance Download PDF

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Publication number
US1663937A
US1663937A US122616A US12261626A US1663937A US 1663937 A US1663937 A US 1663937A US 122616 A US122616 A US 122616A US 12261626 A US12261626 A US 12261626A US 1663937 A US1663937 A US 1663937A
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United States
Prior art keywords
stove
air
box
heating appliance
combustion chamber
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Expired - Lifetime
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US122616A
Inventor
John B Ehrlich
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John B Ehrlich
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Priority to US122616A priority Critical patent/US1663937A/en
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24HEATING; RANGES; VENTILATING
    • F24BDOMESTIC STOVES OR RANGES FOR SOLID FUELS; IMPLEMENTS FOR USE IN CONNECTION WITH STOVES OR RANGES
    • F24B7/00Stoves, ranges or flue-gas ducts, with additional provisions for convection heating 
    • F24B7/02Stoves, ranges or flue-gas ducts, with additional provisions for convection heating  with external air ducts

Description

J. B. EHRLICH HEATING APPLIANCE Filed July 15. 1926 4 sheets-sheet) March 27, 1928. 1,663,937
Jim Q fl TTU A/En March 27, 1928; 1,663,937
; J. B. E RLICH HEATING APPLIANCE Filed July 15. 1926 4 Sheets-Sheet 2 I 6 w Iii I W March 27, 1928. 1,663,937
J. B. EHRLICH HEATING AEPLIANCE Filed July 15. 1926 4 Sheets-Sheet 3 uv/svwrazi U5 5/7/11 /c/a March 27, 1928. 1,663,937
' J. B. EHRLICH HEATING APPLIANCE Filed July 15. 1926 4 Sheets-Sheet 4 Fatented Mar. 27, 1928.
UNITEDSTATES JOHN B. EHRLICH, OF PORTLAND, OREGON.
HEATING APPLIANCE.
Application fi1ed J'uly 15,
This invention relates generallyjto the art of stove making, and particularly to aspecial form of stove for burning solid or gameous fuels. v
The main object of this invention is to provide an exceedingly simple and efiic-ient form .of stove inwhich the air required for CO11'lbHSl3l011;lS pre-heated, thereby securing the most complete combustion of the fuels with a. correspondingdecrease in the amount of smoke and soot arising from-the combustion. Y I i l The second object is to so. construct the stove that the members thereof WhlCllIlOl mally are subjected to the greatest heat-- that is, the top of the fire box, arekept at a safe temperature by means of the incoming air. v
I The third object is to secure an improved circulation of air around the fire box-itself, thereby improving the heating qualities of the'stove without increasing the amount of fuel consumed or over-heating any of its parts; i e M V r The fourth object is to so construct the stove that it will'lend itself to easy manw facture and that its cast ironparts can readily be converted into a furnace without in any way altering its construction other than to surround same with the conventional furnace casing. a j 1 The fifth object i's-to so connect the drafts as to insure proper regulation of the .air at alltimes.
The sixth object is toso construct the stove that it can readily be converted into a burner for coal or briquettes or for the burning of wood.
These, and other objects, will become more apparent from. the specification following as illustrated in the accompanying drawings, in which:
Figure 1 is a front elevation of the stove. Figure 2 is a vertical transverse section through the stove. Figure 3 is a horizontal section taken along the line 3-3 in Figure 2, showing the top removed. Figure 4 is a horizontal section taken along the line 44; in Figure 2 with the dome removed. Figure 5 is a horizontal section taken along the line 55 in Figure 2. s Figure 6 is a vertical section through the upper portion of the stove taken along the line 66 in Figure 2. F igure 7 is a side elevation of the stove showing its application to a furnace casing which is 1926. Serial No..122,616.
shown in cross section. vFigure 8 is a horizontal section taken along the line 88 in Figure 7. v I e Similar numbers ofreference refer to the same parts throughout the several views.
y :Beferringin detail. to the drawings, the stoveitself consists, of the usual base l0 on which is mountedan ash pit floor 11 which, inturn', supports the ash pit 12,includin g theash pit door 13. I
On the ash pit 12 is placed a fire box base 14 which supports the usual form of fire box 15,, The, usual triangular grate 16, or any otherconvenient type. is placed belowthe wopening l in the .fire box .base14. A false grate-18 can be employed for wood burning,
if desired. An angular lining 19 can be set against. the rear wall of the firebox 15v when the false grate 18. isnot employed, aswhn burning coal or briquettes. The combustion chamber 20'is set directly. upon the fire box 15, and it is in the upper portion thereof that the novel features in this stove reside.
' IA front 21, with the fire door. 22, are also indicated, although their outward design andshape will necessarily vary greatly to suit the particular requirements of the stove being manufactured.- or 1 i Across t-hetop ofthecombustion chamber 20; is mounted a hollow air warming baflie box 23 whose under side 24 is provided. with a plurality of perforations 25, whose number and size are proportional vto the requirements, The rear end of the bafi'ie box 23'is supported by the legs 26 which rest on the lugs 27,- while the forward edge is supported by an air inlet .duct 28 whose mouth isfprovided with a damper 29 containinganout-e wardly projecting arm '30 adapted to be operated by a chain 31 and to be connected by a second chain 32 to the ash pit door 13.
Over the combustion chamber 20 and its baflie box 23 is placed a dome 33, including the upper half 34 of a smoke flue 35, which latter is made integral with the combustion chamber 20.
It is preferable to corrugate the members 15, 2O and33 for the purpose of increasing the radiating surfaces and for the protection of the parts against injury due to changes in temperature.
' Above the dome 33 is placed a top 36 preferably provided with openings 37 for the escape of heated air.
-A casing 38 is formed around the stove and cold air can find its way into the stove through the open bottom of the base 10 around the ash pit floor 11.
The only difference between the form shown in Figures 7 and 8 and in the figures described up to this point resides in the fact that the casing 38 is formed somewhat cir-. cular and at a greater distance from the walls of the combustion chamber, owing to the greater volume of air which the furnace must handle, cold air finding its way-into the furnace casing by way of the usual cold air ducts (not shown).
It is preferable in the furnace form of the device to employ a base 39 and a top 40 from whose sloping sides 41 the usual air ducts can be distributed. It is of course necessary to lengthen the smoke flue to span the greater distance between the stove and the casing 38 than exists in the stove form of the device.
In operation fuel is burned in the fire box of this stove as in any other device of a similar nature, the heat from the combustion ehamber rising and heating the under side .24 of the baffle box 23. Obviously, the air required for the combustion of gases within the combustion chamber 20 must enter through the perforations 25 and the control of the amount of such air .is entirely regulated by th d mp r 2 Ittherefore ws that all of the alr required for the combustion is er -hea ed, he eby ot l y e m eat ng e cooli g e fe hich fresh'air di ar ly h s 2 a e n nab e empera ure f he, burning gases n th ombustionchamber to be kept much higher than is-Qrdin rily he cas ther y esu t ng i a 7 comp e e c mb sti n of. h uel d M tel elim nat qnof m k d S fr m the burned. g s s-v Fr m h high c mbus on ha b r peratnre follows a second improved result a greater difference in temperature between the mbus n c amb r w san the c g 38 of the stove itself, thereby resulting in a mu m re rapi pa sag of a p y around the heated combustion chamber'QO and out through the openings 37 than would ing 38;
In the furnaceform of'the device, if the pipeless variety of furnace is to 'be'constiucted, to the register and the space between same and the outer wall 88? serves as a cold air return ducts" I V I am aware that stoves and furnaces have long been constructed in the past; I thereall such forms and modifall fairly within the app dome;- an air Warming inlet projectingfon wardly from the bottom of said dome; an
air warming box mounted within'said com? bustion chamber near the bottom of said dome andspaced therefrom, said air warming box having a circular form and having a fore do not claim such devices'broadly, but I the inner wall is merely carried up somewhat concave perforated underside and v r a convex upper side,'said warming box having an inlet duct projecting through said air warming inlet and spaced therefrom, said inlet duct having a. damper for admitting air to the underside of the grates in the combustion chamber; and means for connecting said dampers causing same to operate in unison,
JOHN B. :EHRLIC-H.
damper therein; a r
US122616A 1926-07-15 1926-07-15 Heating appliance Expired - Lifetime US1663937A (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4201185A (en) * 1978-08-21 1980-05-06 Black Milton W Method and means for heating by wood burning
US4232650A (en) * 1977-08-30 1980-11-11 Baffle Stove Company Inc. Baffled stove
US4445496A (en) * 1982-05-10 1984-05-01 Crain George F Wood burning heater providing improved uniform temperature output
WO1996001393A1 (en) * 1994-07-01 1996-01-18 Torfinn Johnsen Mixing chamber arrangement

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4232650A (en) * 1977-08-30 1980-11-11 Baffle Stove Company Inc. Baffled stove
US4201185A (en) * 1978-08-21 1980-05-06 Black Milton W Method and means for heating by wood burning
US4445496A (en) * 1982-05-10 1984-05-01 Crain George F Wood burning heater providing improved uniform temperature output
WO1996001393A1 (en) * 1994-07-01 1996-01-18 Torfinn Johnsen Mixing chamber arrangement

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