US564116A - Steam bake-oven - Google Patents

Description

(No Mod-e1.) 2 Sheets-Sheet 2.

. A. SPANGLER.

STEAM BAKE OVEN.

Patented July-l4, 1896.

INVENTOH By Jmm A 7'TOHNEYS.

PATENT FFICE.

ADAM SPANGLER, OF SILVERTON, OREGON.

STEAM BAKE-OVEN.

SPECIFICATION forming part of Letters Patent No. 564,116, dated J'uly 14, 1896.

Application filed June 21,1895. Serial No 553,581. (No modeI.)

To all whom it may concern:

Be it known that I, ADAM SPANGLER, of Silverton, in the county of Marion and State. of Oregon,have invented a new and Improved Steam Bake-Oven, of which the following is a full, clear, and exact description.

The object of the invention is to provide a new and improved steam bake-oven which is simple and durable in construction, very effective and economical in operation, and arranged to bake perfectly, and to give bread or other material to be baked a fine luster, and without danger of burning.

The invention consists of certain parts and details and combinations of the same, as will be fully described hereinafter, and then pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a front elevation of the improvement. Fig. 2 is a sectional side elevation of the same on the line 2 2 of Fig. 1. Fig. 3 is a transverse section of the same 011 the line 3 3 of Fig. 4. Fig. {i is a sectional plan view of the same on the line 4 4 of Fig. 3, and Fig. 5 is an enlarged sectional side elevation of the lamp-support.

The improved steam bake-oven is provided with a brickwork A, in which is formed a combustion-chamber B, provided with a grate 0, below which is arranged an ash-pit D. Doors B and D lead to the combustion-chamber B and the ash-pit D, respectively, to introduce the fuel and to remove the ashes in the usual manner.

From the ends of the combustion-chamber B and on'opposite sides lead the openings E into longitudinallyextending channels E,-

formed in the brickwork A, and connected at their forward ends with chimney-fines F. On

the top of the brickwork A, directly over the combustion-chamber B, channels E and openingsE is set a metallic shell G, made of sheet metal or similar material, and formed in its bottom with a boiler H, containing the water to be heated by the fire burning in the combustion-chamber B to generate steam. This boiler H is connected by apertures H with steam-spaces H divided longitudinally by a chamber H to form the ovens I and I, of

which the oven I is located directly above the boiler H and supported by brackets H and the oven I is located between the chamber H and the top steam-space. The boiler- H may be provided with the usual fines, if desired.

By the arrangement described the steam generated in the-boiler H surrounds the ovens I and I at the bottom, top, sides, and rear, as is plainly shown in the drawings.

The front ends of the ovens I and Iare provided with suitable doors I and I for inserting the bread or other material to be baked, or removing the same from the ovens wheneverthe baking process is completed.

Into the front ends of the ovens I and 1 project the steam-supply pipes J and J, respectively, each provided with a valve J and both connected with a pipe J leading to the steam-spaces in the boiler H. Thus, when the valves J are opened, steam can pass from the steam-spaces of the boiler into the ovens. The ovens are also provided at their front ends 7 5 with windows K, in front of each of which is placed a lamp supported on a hinged bracket L, provided with a casing L and a reflector L for throwing the rays of light through the windows K to the inside of the oven to illuminate the lattter and to permit the baker to View the contents of the oven.

Water is supplied to the boiler H by a suitable supply-pipe N, and the said boiler is provided with a blow-off pipe N, shown in Fig. 2. On one side of the boiler is arranged a water-gage 0, (see Fig. 1,) and on the top of the steam-spaces H. is arranged a safety-valve Q. A gage P is also provided for the steamcompartment. I 0

It will be seen that by the arrangement described the fuel burned in the combustionchamber B 011 the grate O is utilized to the fullest advantage, as the heat and gases travel under the boiler H both in the combustion- 5 chamber and in the return-channels E before escaping to the chimneys. It will further be seen that as the ovens I and I are completely surrounded by steam-spaces, with the exception of the front, a uniform heat is produced inside of the ovens, so that the bread. or other material will be perfectly baked.

By providing the steam-supply pipes J and J any desired amount of steam can be in- ,iected into the said ovens, so that moist heat is obtained within the ovens, and consequently perfect baking of the material takes place, and a finer luster is given to the same.

By the use of the valves or stopcocks J any desired amount of steam may be let into the ovens. As very little steam is used, the boiler requires refilling with water but once in twelve to twenty-four hours during continuous use of the oven.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- 1. A steam bake-oven, comprising a comsaid outlet-channels being arranged at opposite sides of the combustion-chamber and connecting with chimney-fines at their forward ends, a boiler set over the said combustionchamber and channels and forming the top thereof, a steam chamber communicating with the said boiler, one or more ovens setin the said steam-chamber, and valved pipes connecting the said steam-chamber with the interior of the ovens, snbstai'itially as shown and described.

3. A steam bake-oven, comprising a furnace having a combustion-chamber and provided with longitudinally-extending return outlet-channels for the smoke and gases, the said channels being located at opposite sides of the oombustion-chamber and communicating at their rear ends with the said combustion-chamber and connected with chimneyflues at their forward ends, a metallic shell set over the said combustion-chamber and channels, and forming the top th ereof, a boiler in the bottom of said shell, an oven supported in the said shell directly above the boiler, 21 second oven located abovethe first oven, said ovens being separated from each other and from the walls of the shell at the top, bottom,

sides, and rear by steam-spaces connnunicating with the boiler, and pipes located at the front of the oven and provided with valves, the said pipes extending into the ovens and connected with a pipe leading to the steamspaces, substantially as shown and described.

ADAM SPANGLER.

XVitnesses F. G. SoMERs, J. S. 000K.

Images