US1276901A - Oil-burning stove. - Google Patents

Description

A. F. GLASS.-

OlL-BLIRNING STOVE.

APPLICATION FILED APR. 2. I918.

Patented Aug; '27, 1918.

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OIL BURNING STOVE.

APPLICATION nuzo APR. 2. 918.

Patented Aug. 27, 1918.

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i To all whom it may concern:

UNITED STATES PATENT OFFICE.

sanctum". emss, or BIRMINGHAM, ALABAMA.

OIL-BURNINGSTOVE.

Be it known thatI, A NO D F. GLASS, a

citizenof the United Statesof America, re-

siding at Birmingham, in the county of Jefferson andState of Alabamay have invented certain new .and useful Improvements in Oil-Burning Stoves; ofwhich the/ following is a specification. 1 a 3 This invention relates to improvements in oilburning stoves andfranges, 1- .One feature of my invention relates to stovesfin which-the products of combustion are controlled by dampers so as to pass either around or through the oven to the stack and constitutes, an improvement on the oil burning stove forming the subject matter of Letters Patent No. 12585210, issued to me on-the15th day of March, 1918; In y said patent if the slide valve controlled bottom portsin the. oven which admit the products g of combustion thereinto .were left" closed when" thedamper was set to direct the'prod' u'ctsfof jcombustionthroughthe oven to the stack instead of directly to the stack, it is obvious that the connection to the stackwould supply of heat thatis admitted into the oven under the control of its. bottom slide valves.

.Ihave found thatfit is essential in oil burner stoves to control thevolume of air to the stove; and a further feature of myinvention to design a simple means tothis end by the'provision of a horizontal baffle plate which is provided with flanged openings through which the burners' pass, the circular flanges serving as centering supports for the bases ofthe burner stacks or chimneys. The

partitionthus prevents access of air. into the stove except such as is drawn in normal course through the burner stacks and this is regulated as to volumeby suitableslide al es- V My invention will be betterunderstood by Specification of Letters IPatent.

Application filed Apri1'2. 1918 Serial No. 226,185.

into the common outlet flue.

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which '1. illustrate thepreferred embodiments thereof. but'it will be understood that the details of construction may be Widely aried Without departure. from the essential principles ofmy invention." According. to the drawingsz I Patented Au 27-, 1 91s.

Figure 1' 's aplan'vievv of the stovewith thetop broken" away toshow the division plate which supports the burner chimneys in plan g Fig 2 is a vertical sectional view showing the top and bottom portsopeningjfrom the top of the oven and from below the'oven Fig. aisa partial vertical sectional view taken on the .line 8 -3 of Eig. 2.

1 Figg tis an enlarg'eddetail'vlew showing I maingslide damper and its connection to thed raft relief port .valve; Fig, 5; is'a jviewsimilar to Fig. 3'01? a modlfied. damper and safety. draft valve construction.

Fig.6 is a detail view ofthe slide valve controlling the 'bottom and iside ports of the oven. 7..

,Similarreference numeralsf'refer to similar .parts throu'ghout the drawingsf I present invention "maybe embodied in any standard type of cooking stove,"the stove illustrated in. the drawings comprising a bottom 1, end ;Walls 2 and 8,'*a front wall 4 A andabackwall5 The top 6 is formed by an ordinary stove casting with removable jsftove lids 7; Q'The stove i's" provided'with .an ordinary, hinged front door 8 and a hinged downwardly swinging end door 9 boir 12 of the stove. "llhese burners are adapted to burn kerosene lor any suitable fuel oil which is contained in 'a tank 14: and

' in the; end .wall 2 {through which access is had to thevalves 10 for the burners 11 in the fire supplied to the burners by means of-a pipe i 15 in the manner-well understoood in this art. The tops oftheburner chimneys 16 are disposed slightlybelow the top wall 17 of the oven, Which has-its end adjacent to the :burne'r's'fextended downwardly to en-' gage the bottom 1 ofthe stoveand laterally to. engage'the'front and rear walls 2 and', thus forming a partition which forces 'the products of combustion to pass fromthe fire box 12 and enter atopflueor passagewa 1' 19. above the oven along which they flow un- "den the top 6 of the Steve to the right hand end ofthe oven and'thence downwardly beijtve nths a iee he;ee ll-. jef

stove and back under the oven to an outlet port which opens into the bottom ofthe stove fine 21. The bottom wall 22 of the oven is provided with several series of hot-- slides in guides 25 attached to the under face of the bottom 22. The outer end of the slide valve is bentto form a handle 26 which projects through the front wall 1 of the stove. Av similar ;arrangement of ports, valves and guides may be provided for the top of the right end wall of the oven. Near the top of the oven'Iprovide' an outlet port 27 having access to the stoveflue 21. f The bottomoven wall 22 is also'providedwith a safetydraft port 28 adjacent to thejport' 20 and this port 28 is adapted to be closed by a valve 29 hingedto the bottom wall 22 at 30 and having a rigid operating arm .31 which, when the valve is closed, projects rearwardly through avertical slot 32 in the top wall of the port20 and is there connected to thelower end of a slidingdamper 3,3.

The sliding damper 3,3, which isv illus trated more clearly in detail in Fig. 1, is

formed by a flat sheet'ofmetal havinga slot. 34 therein adapted to register with and open the port 27 at the topof the oven when the damper is moved to its lowered position with itsbottom end closing the port 20 below the oven. In moving to this lowered position the damper 33 through the arm 31 will move the valve 29 to open the safety draft port 28 in the bottom wall 22 of the oven, thuspermitting a sufficient draft to pass through the ports 28 and 27 tothe stack 29 will pass thereinto.

damper in the desired adjustment. *admittedyto the fire box below the'burners to avoid smothering the burners. When the sliding damper 33 is raised (see Fig. 4), its port 34 moves out of register 'with the oven port 27 so that the latter closed while the bottom port 20 is opened. In order to enable this bottom port-.20 to be fully opened, the slot 32 is provided in its top wall so that the operating arm 31 for the damper The sliding damper 33 isprovided with suitable side guides 35 and it has a handle extension 36 which projects through the top;6 of the stove and is provided with rack teeth 37 to" set the Air is by side and bottom dampers 38 and 39 and to prevent any ofthis air passing into the flue 19 in an unheated condition, ,Iprovide in the lower portion ,of the fire box 12 a hori- --a baffle wall closed except for two circular portsllformedtherein for the burners 11. Each of these portsis surrounded by a marginal upset-flange 12, each flangeybeing shap'ed andadapted toreceive and hold the lower end of the burner chimneys 1,6 and to center them in proper position relatively to vpass upthrough 'these ports 11 and supply the necessary oxygen for the burners and i. will pass in a highly heated condition tom ports 23 adapted to be opened and closed bya slidingported valve'2avhich will insure a sufficient draft to'pr tect the burners against being smothered,

In Fig. 5 I 'illustratea modified arrangementof the main damper corresponding t'o that shown in Letters Patent." Here the stack connects with a back flue43. into which the ports 20 and 2 7 open. A wingedxdamper 41 hinged to the backwall 5 is disposed'in its raised position to close theport127fand in, its lowered. pos'itionto closethe flue 13 below the port 27 and thus serve infefiectto close the port 20. An operating .rod45i is connected to the free end of the winged damper and to the operati'ngfarm i l of the safety draft valve 29. By this arrangement the ports 27 and 28 will be simultaneously opened or closed, motion being imparted by the ratchet arm 36 which, instead of being 7 connected tothe winged damper 44,"isconi nected to a crank arm 46 by whichjthe damper is operated. i

This invention is not intended togbe restricted in scopeto the specific embodiment shown, but contemplates such modifications ascome within the spirit and scope of the claims. V i

Having thus I described my invention,

what I claim .as newand desire to secure by Letters Patent, isz v,

1. An oil burning stove havingtherein oven about which the, hotgases pass, a smoke flue, there being, outlet ports for the hot gases opening from the oven and from below the oven into said flue, :means to control the admission of hot gases into the oven, damper means for sa d outlet ports, an aux- 1l1ary draft valve in the oven, andmeans to open said valve .when the damper mechanism is set-to pass the hot gases through the oven to said smoke flue. I

2. The combmatlon with an oil burning stove having thereln an oven, a smoke flue gases opening lnto said fiue below the oven and near the top. of the oven, meansto adm1t hot gases lnto the bottom of the oven, a

and means to direct the hot gases about the oven, there being outlet ports for the hot damper mechanism for simultaneously-con trolling said outlet ports. and opening one as 1t closes the other, and a safety draft valve in the oven bottom movable by said damper mechanism to open position when the damper mechanism is set to pass the hot gases throu h the oven to the smoke flue.

3. An oi burning stove comprising an oven, means to cause the hot gases to pass over and around under the oven, valve mechanism to admit the hot gases into the lower portion of the oven, a smoke flue, there being outlet ports for the hot gases entering said flue below the oven and near the top of the oven, a common ported damper slidable in the smoke flue and adapted to open one of said outlet ports as it closes the other, and a safety draft valve in the bottom of the 15 oven connected to the sliding damper and adapted to be opened thereby when said oven outlet port is open.

In testimony whereof I aifix my signature.

' ARNOLD F. GLASS. Witness:

NoMIE WELSH.

Copies of this patent may be obtained fol-five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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