US878699A - Oil-stove. - Google Patents

Description

No 878,699. PATENTED FEB. 11, 1908.

w. 11. WILDER. OIL STOVE.

APPLICATION FILED APR. 20,1904.

2 SHEETS-SHEET 1.

N .878 699. PAT NTED FEB. 11 1908. o v W.-H.,WILDER. I

0 1L STOVE.

APPLICATION FILED APR. 20, 1904. I 2 SHEETS-SHEET 2.

. the curved edges of the base plate a WILLIAM H. WILDER, OF GARDNER, MASSACHUSETTS.

OIL-STOVE.

Specification of Letters Patent.

Patented Feb. 11, 1908.

Application filed April 20' 1904. Serial No. 204091- To all whom it may concern:

Be it known that I, WILLIAM H. WILDER,

Stoves, of which the following is a specification.

My invention relates to oil stoves of the free level type and the object of my invention is to provide a burner, or series of burners, at the top of the stove, an oven below saidburners, and a second burner, or series of burners, below said oven for heating the same and means for providing a flue space between the oven and the top row of burners so as to keep the supply pipe to said burners cool.

The invention is illustrated in the accompanying drawings in which:

Figure 1 is a sectional view with parts in side elevation. Fig. 2 is a front elevation with the oven door open. Figs. 3 and 4 are detail views. y a

In these drawings A is the base of the stove, preferably formed as shown, of di-- verging strips a having their lower edges rolled to form a supporting rib or and their upper edges rolled to form a support a" lffir e diverging plates a are secured to each other and to the base plate a by angle plates 0/.

B and C are the side and back pieces formed of sheet metal, suitably secured to the base plate a These pieces are rolled at their edges to form four hollow tubes B. The two tubes at the back are formed of the side and back pieces combined. By this construction a rigid frame is secured and the sides and back of the frame are secured together' without the use of bolts or nuts. Openings 7) and b are formed in the side pieces at the bottom and near the top thereof for the passage of the supply pipes from the reservoirs.

The back has a space or out out portion just beneath the top of the stove forming the air flue exit. A part of the metal of the back is out and turned over as at c to form this opening. The top of the stove D is formed with the usual grate openings and its edges are curved downwardly as at cl. Corner pieces (1 are secured to each corner of these curved portions so as to make a .at each of their four edges.

more rigid and ornamental construction. This top D is suitably secured to the frame. I provide two rows of burners, that at the top being lettered E and that at the bottom F. These burners are of the well known free level type and need not be described particularly herein.

E and F are the reservoirs, one for each row of burners, and e and f are the supply pipes from the reservoirs to the burners. The ends of said pipes, opposite the reservoirs, pass through the openings in the sides of the frame to a point above the level of oil in the reservoirs and are secured to the .sides by suitable holding means such as that shown at e and f e andf are the means for controlling the supply of oil to the burners. In the space formed between the two rows of burners I place an oven, which is adapted to be heated by the bottom row of burners, the bottom Gr of said oven being formed with suitable grate openings for this purpose.

I form the back H and top I of the oven from one piece of metal bent at right angles. The portion H is rolled at its lower edge so as to form a supporting rib h for the curved edge of the bottom portion G of the oven. The top portion I and the bottom portion G are also rolled at their front edges, as shown at i and g, and the ends of these three rolled portions 11, g and h, project through holes B formed in the sides of the frame, a space being left between the wall H and the back of the stove. Adjacent to-the rolled portions and the bendin the sheet forming the top and back, the metal is cut and bent over to form flanges, i, g and h, which bear against the sides of the frame. The metal forming the back and top and the bottom are made slightly Wider than the width of the stove for this purpose. By these means the oven is rigidly secured to the frame of the stove Without the use of other fastening means, thus cheap ening the construction of the stove.

I provide a lining for the two sides and top of the oven from three sheets of metal flanged are bent inwards so as to form a space between the lining and the sides and top of the oven. By placing the top sheet in position first and then the sides the latter will support the top sheet by reason of the fact that These flanges I chamber Q between the top of the oven and and the burner.

these sides are made to fit snugly between the rolled portions at the front and the back of the oven and thus will be held in by friction. Portions of the metal forming the sides are punched out as at j to form rests for the shelves X of the oven. The front of said oven is closed by a door L formed of sheet metal or the like having its edges rolled inwardly and a lining piece Z formed with inwardly extending flanges fitsin the space formed by the rolled portions of the sheet. Corner pieces M are secured to each corner of the door, the rear corner pieces having oppositely curved arms m which are adapted to encircle one of the tubes B, thus forming a hinge for the said door. Holes Z are provided in the side of the frame for the passage of the arms. A portion N rolled at one end is secured to the opposite side of the oven to that to which the door is hinged so as to provide a rib with which a projection 0 on the knob O of the door engages to lock the door.

To keep the supply pipe of the upper row of burners cool I provide a shield P bent at substantially right angles which forms an air the burner and another air chamber R between the back of the stove and the burners, said chambers constituting a duct or flue. This latter chamber is in communication with the atmosphere throughthe space at the back of the stove and also with the oven through the space K and the holes J, which connect the oven with said space K. The front edge of the lower portion of this shield is rolled and enters holes B formed in the two front tubes B. Adjacent the rolled portion the metal is cut and bent over the edge of the openings 1), while the upper portion is also rolled and enters holes formed in the sides of the frame at the top thereof and its flanges bear against the sides of the frame. In this way the hot air from the oven passing up the space K through the chamber R in duces a draft of cool air to enter the chamber Q above the oven, and from this chamber it passes into chamber R, and then, together, with the hot air passes out of the space at the back of the stove. Thus there is always a layer of cool air between the oven and the top row of burners.

When it is desired to use the oven as an ordinary cooking space the shelves are removed and for safe keeping they are placed in the space or chamber between the oven This enables the oven space to be used as an ordinary cooking space when it is not desired to use it to bake with. It is for this reason also that I hinge the door in the manner shown, so that when desired it may be thrown open and expose the entire space ordinarily utilized as an oven.

It will be observed that the flue space Q l has an upward deflection as to the wall formed by the shield P and this is important,

as I have found by practical demonstration that very little draft is created if the flue space Q has parallel walls above and below, but by giving the upper wall an inclination as shown, a current is created through this space suflicient to keep shield P cool and to prevent any radiation of heat from the oven or lower burners to the upper burners, and this is exceedingly important in oil stoves as otherwise the radiation would tend to vaporize the oil in the pipe line of the upper burners and transform the oil into gas.

Attention is directed to the fact that the pipe line e has its end opposite the reservoir open and deflected upwardly and outwardly so as to preferably project slightly beyond the rear wall of the stove as shown in Fig. 1. This is of advantage, first, because the end of the pipe is carried above the oil level; seeondly because it permits draining of the pipe and burners by tilting the stove in a natural manner, as the upward and outward inclination, I have found, permits convenient draining into a receptacle without unduly elevating or tilting the stove as would be necessary if the open end ofthe pipe line extended directly upward or vertically.

I claim as my invention:

1. An oil stove range comprising a suit able frame, an upper burner located directly beneath the top of the stove, a reservoir for supplying oil thereto, a lower burner with a reservoir independent of the first named reservoir for supplying oil to said lower burner, an oven located above the lower burner and a flue space provided between the oven and the upper burner for the purpose of deflecting the heat of the lower burner therefrom so as to prevent the abnormal heating of the oil in the burner, substantially as described.

2. In combination with an oil stove, an oven, burners above and below said oven and a flue space below and behind the upper burners, substantially as described.

3. In combination with anoil stove, an oven, burners above and below the same and a flue space between the oven and upper burners, having an upward pitch, substanin said frame, a door for the oven, consisting of sheet metal, having corner pieces, and oppositely curved arms projecting from two of said corner pieces, said arms being ada ted to encircle one of the hollow tubes to orm a hinge for the door, substantially as described.

WILLIAM H. WLLDER.

Witnesses:

B. F. Ro'rnwELL, W. W. TANDY.

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