US1078475A - Oil-burner. - Google Patents

Description

'. L. WEEMAN.

OIL BURNER.

APPLICATION rILED APB. 25, 191s.

:lyvy Patented Nov. M, 19113.

ATTO R N EY lrEEnEJaIcK L. WEEMAN, or PORTLAND, MAINE.

OIL-BURNER.'

specmcauon of Letters Patent.

Patented Nov. 11, 1913.

` Application led April 25, 1913. Serial No. 763,583.

l To all whom t may concern.'

Be it known that I, FREDERICK L. WEE- MAN, a citizen of the United States, residinc at Portland, in the county of Cumberland and State of Maine, have invented a new and useful Oil-Burner, of which the following is a specification,

preheated, while the air supply may be regu-.

lated by the usual draft appliances with which stoves `are customarily provided.

The invention also includes a lighting device which may form a practically permanent part of the structure without interference with the 'burner heads and yet readily be moved into operative relation to the burner heads.

The invention will be best understood from a consideration of the following detailed description, taken in connect-ion with the accompanying drawings forming a part i of this specification, with the :further understanding that while the drawings show a practical embodiment of the invention,the latter is not confined to any strict conformity with the showing of the drawings but may be changed and modified so long as such changes and modifications mark no material departure -from the salient features of the invention.

ln the drawings: Figure 1 is a vertical front to rear section of the fire box portion of a stove showing the improved burner installed therein, but without any attempt to showany particular construction of stove. Fig. 2 is a plan view of the burner removed from the stove with one ofthe burner feed pipes shown in section and the corresponding burner head omitted. Fig. 3 is a bottom plan view of-the'burner. Fig. 4 is a section on the line 4-4 of Fig. 2. Fig. 5 is a perspective View of a portion of the burner structure as seen Jfrom below.

Referring tothe drawings there is shown a stove 1 which may be considered as constructed in accordance with ordinary stove practice, and may represent an ordinary coal or wood burning stove such as is employed for cooking, or it may represent a construction of stove designed especially for the burner of the resent invention, althou h the latter is a aptable to almost any or inary form of cook stove. The stove 1 is shown as provided with the usual upper and lower draft doors 2 and 3, respectively, the latter opening to that portion ofthe stove constitutin the ash pit in a coal stove. There is provl ed a tray 4 which may be in the'form of a flat casting, having a marginal upturned rim 5 about it and of a size and shape to practically fill the lire .box of an ordinary stove, resting on the usual ledge 6 of the stove provided for sustaining a grate, but, of course, there may be other provision for supporting the tray 4.

Through the bottom of the tray there are provided openings 7 which may be arranged in some symmetrical order, although this is not at all mandatory, and in the drawings are shown about one-fourth of the length of the'tray from each end, two such openings being indicated. Each opening is surrounded on what constitutes the upper face of the tray by a flange 8 spaced from and concen` tric wlth the opening and leaving a ledge 9 between the opening and the flange. This ledge is designed to receive feet 10 on the under side of' a cup 11 of an external diameter somewhat less than the internal diameter of the flange 8, and the feet 10 are of a length to bring the lower edge of the cup 11 into such relation to theflange 8 and opening 7 that air may readily flow through the opening 7 beneath the cup 11 and around the margins of the same, between the cup and the flange 8 into the fire chamber of the stove. Y

Between each flange 8 and the corresponding end of the tray 4 is a boss 12 and other like bosses 12 may be formed adjacent the middle of the tray. Each end boss 12 is bored and tapped for the reception of a pipe 13 upstanding from the tray and at the upper end connected by means of an elbow 14 with a laterally extending pipe 15 carrying at the free end a-burner head 16 which latter maybe provided with an internal bore 17 in line and communicating with the pipe 15, while leading from the bore 17 vare passages 18 directed downwardly toward the cup 11 and each terminating in a Haring end .ner that any fluid reaching the burner head 16 under suitable pressure will be directed toward the cup 11 and more or less sprayed by the flaring mouths 19 of the passages 18. Each pipe 13 is connected by a respective pipe 20 or 21, as the case may be, to a supply pipe 22 which may be common to both pipes 20 and 2'1, and zth'e latter may each contain a suitable val\'e-23 by means of which communication between the supply and the respective burners may be controlled or cut off', at will. Each pipe 20 and 21 is connected by suitable fittings to the threaded opening of the respective boss 12.

At a mid point of the tray Llnear one under side thereof there is formed a boss 24 which may rise from the tray to a greater height than the bosses 12 and pivoted at oneend to this boss by a in 25 is an arm 26 which at the other end 1s formed into a cup or receptacle 27, andthe arm 2G is of such a length that when swung on its pivot pin '25 to one side or the other of a central position it will come directly over a respective cup 1l and directly beneath a respective head 16.

To protect the parts the tray et may be provided with a lining 28 of some refractory material, such as asbestos, and the cups 11 may have a lining 29 of like material, while the cup or receptacle 27 contains a mass of asbestos or some such material which will hold a' suitable quantity of oil to be lighted and produce a flame for the preliminary heating of the burner heads 16.

Let it be assumed that the structure is iny stalled in a stove, and that it is desired to produce av fire, then one of the valves 23 is opened after the cup 27 has been positioned beneath the corresponding head 16 and oil is permitted to flow into the cup until a sufficient quantity has been deposited therein. This oil is now lighted and the flame rising against the head 16 soon heats it to an appropriate heat, after which the primin cup 27 may be moved into position beneat the other burner head and the priming operation repeated, while the first head having been suiliciently heated may now supply gasied oil which on being lighted as it issues from the head 16 is directed in the form of a flame toward the cup 11, and meeting air rising through the opening 7 and about the cup 11 produces an intensely hot flame, thereby heating the stove. If one burner is all that is needed, then, of course, the second burner is not preheated and caused to operate, but if both burners are needed, then the preheating operation is repeated as to the second burner, and in a short time both burners may be in operation.

rl`he intensity of the flame may be controlled by the amount of fuel supplied, which is determined by the openinor of the valve 23 to thc required extent, an also by a suitable manipulation of the draft controlling devices 2 and 3, the draft device 3 providing air supply which will pass about the cup 11 in close relation to the burning oil. The draft device 2 permits a certain degree of cooling by admitting air above the point of greatest combustion.

In the foregoing description the device has been termed an oil burner, but it will be understood that the Word oil is used in a more general sense as indicating any fuel adapted to the purpose. It Will be observed that the tray 4 forms the bottom of the fire chamber7 so that the only air which reaches the fuel from beneath the tray is by way of the passages 7 and spaces about the cup 11 and flanges 8, whereby nicety of control of the air 'supply is permitted by a manipulation of the ordinary drafts of the stove.

lVhat is claimed is l. An oil burner comprising a basic member having passages therethrough with surrounding upstanding flanges, cups each provided With feet individual thereto and shaped to engage the basic member to support the cup in elevated relation to a respective passage and within the space delined by the flange about said passage, and burner heads in elevated relation to the cups.

2. An oil burner comprising a basic member having passages'therethrough with surrounding upstanding flanges, cups supported by the basic member in elevated relation to the passages and Within the space defined by the flanges, and burner heads in elevated relation to the cups and provided with supports in the form of conduits rising from the basic member, the burner heads being provided with fuel passages having flaring mouths directed toward the cups.

3. The combination with a stove, of an oil burner tray adapted to be housed in the fire box of the stove and of a size to substantially separate the space above the tray from the space beneath it, said tray havin passages therethrough and also provide with flanges in spaced surrounding relation to the passages and upstanding from the tray, pipes upstanding from the tray adjacent the passages and each carrying a burner head in elevated relation to the tray above the respective passage therethrough, and a cup for each passage having feet'adapted to rest on'the traywithin the margin of the respective flange. and above the opening through the tray and in position to receive fuel from the burner head.

4. The combination with a stove of an oil burner tray adapted to be housed in the re box of the stove and of a size to substantially separate the space above the tray l from the space beneath it, said tray having passages therethrough and also provided with flanges in spaced surrounding relation to the passages and upstanding from the tray, pipes upstanding from the tray. adja- `cent the passages and each carrying a tion to the corresponding one of the iirstnamed oups.

5. An oil burner provided with a plurality of burner heads, and a lighting member intermediately of and lower than the burner heads, said lighting member cornprising a receptacle for fuel, and an arm at one end carrying the lighting member and at the other end provided with a mounting constructed to permit the movement of the lighting member to a position beneath and in operative relation to either of the burner heads, at will.

6. An oil burner comprising a tra having an opening between each end and t e center portion with an upstanding flange surrounding they opening and spaced in concentric relation thereto, a cup provided with legs adapted to rest on the tray interior'to `each Bange and in surrounding'relation to' the respective opening, an upstanding ductad]acent to each opening and carrying a burner head 1n elevated relation to a respective cup with openings in the burner head directed downwardly toward the cup, and a lighting member comprising an arm ivoted to the tray near one side thereof an at the free end provided with a cup, the arm being of a length to move about its pivotal support into position beneath either head and in elevated relation to the corresponding one of the tiret-named cups.

7. A stove provided with a tray in the fire-box of a size to substantially divide the re box into an upper anda lower chamber, said t1 ay being provided with openings extending therethrough with each opening surrounded by an upstanding iange in spaced concentric relation to the opening, pipes upstanding from the tray in spaced relation to thek anges and each provided with a lateral extension carrying a burner head in elevated relation to the respective opening and having fuel passages directed toward the opening, a cup in elevated rela 'tion to ea'ch opening and supported by the tray within the margin of the respective flange and beneath the respective burner head, an arm pivoted to the tray near one side thereof and provided at the end remote from the pivot with a cup movable into elevated relation` to either of the rst-named cups and beneath a respective burner head, ialnddmeans for supplying fuel to each burner In testimony, that I claim the foregoing as my own, I have hereto affixed my signa` ture in the presence of two witnesses.

FREDERICK L. WEEMAN.

Witnesses:

Gno. H. MoRmLL, WILLIAM S. HARTFORD.

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