US993464A - Baker's oven. - Google Patents

Description

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Patented May 30,

BAKER'S OVEN.

W. SCHWARTZ.

APPLICATION FILED JULY 2, 1902.

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YHE NORRIS PETERS 50-. "SHVNDTO", D- C.

W. SCHWARTZ.

BAKBR'S OVEN.

APPLICATION FILED JULY 2, 1902.

Patented May 30, 1911.

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n MORRIS PETERS co. WASHINGTON. 0 c4 W. SCHWARTZ.

BAKERS OVEN.

APPLICATION FILED JULY 2, 1902. 993 A64, Patented May 30, 1911.

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WILLIAM SCHWARTZ, 0F NORRISTOWN, PENNSYLVANIA.

BAKERS OVEN.

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Specification of Letters Patent.

Patented May 36, 1911.

Application filed July 2, 1902. Serial No. 114,049.

To all whom it may concern:

Be it known that T, WILLIAM SCHWARTZ, a citizen of the United States, residing at Norristown, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvements in Bakers Ovens, of which the following is a specification.

Objects of the present invention are to provide simple, reliable and efficient means for obtaining at comparatively little expense the advantages which follow the use of steam in baking; to insure even heating of the oven; and to obtain at a minimum of cost the maximum of beneficial effect of steam baking.

To these and other ends hereinafter set forth, the invention, stated in general terms, comprises the improvements to be presently described and finally claimed.

The nature, characteristic features and scope of the invention will be more fully understood from the following description taken in connection with the accompanying drawings, forming part hereof and in which Figure 1, is a front elevational view of a furnace embodying features of the invention. Fig. 2, is a sectional plan view showing the floor of the oven, the grate, and also illustrating features of the invention. Fig. 8, is a plan view partly in section illustrating the top of the furnace and drawn to a reduced scale. Fig. i, is a longitudinal sectional view taken on the line 4-t, of Fig. 2; and Fig. 5, is an edge view of a damper hereinafter described.

In the drawings, 1 is a chimney internally subdivided into a number of separate passages or flues which will communicate, as will be described, with the various flues that lead from the oven 2. The purpose of this is that since each flue from the oven extends through the chimney separate from the others it follows that the draft in each is uninfiuenced by the draft in the others, and in this way it is possible to cause each of the fines from the oven to take its appropriate allowance of hot products, and in that way the oven is uniformly heated.

3, is a boiler or water heater which is located in proper relation to the fire-place 4:, for receiving heat from it. As shown it is located above the fire-place and supported by the brickwork. From this boiler 8, there extends a valved pipe 5, which penetrates the oven 2, near the front and extends around its interior, as shown in Fig. 2, sloping downward as it does so until finally it communicates with a box 6, which is embedded in the brickwork and which may be provided with a trapped overflow 7. The pipe 5, inside of the oven is perforated as is also the portion of the box 6, which is exposed to the interior of the oven. In heat in u the oven the i e 5 or that oortion of a p P P 7 1 it which is within the oven, as well as the box 6, become heated, and afterward during the baking when hot water from the boiler is permitted to escape from the boiler through the pipe 5, it runs into the hot portion of that pipe and is there vaporized and converted into steam, and the latter escaping from the perforations reaches the interior of the oven. If some of the water is not converted into steam it may run into the box 6, and find its way out through the overflow 7 8, is a damper located at the rear end of the fire-place, where it communicates with the oven. This damper is adapted to remain in either of two positions, that is to say, in either vertical position, as shown in Fig. 5, or in the horizontal position which it would occupy if turned down toward the right in Fig. 5. When steam is being used in the oven 2, the damper is put, as by means of a poker, into the position shown in Fig. 5, in which it interrupts communication. between the fire-place and the oven and thus prevents passage of steam from the oven into the fire-place. However, when the fire is being burned to preheat the oven the damper 8, is in open position. The lip 9, serves to support the damper 8, and the damper is pivoted at its lower edge as at 10. A, introduces cold air to the fire.

In heating up the oven a fire is built in the fire-place t, and the damper 8, is open so that the hot products from the fire enter the interior of the oven 2. The flue a, Fig. 4:, which leads from the side of the fireplace is closed by the damper a Thus all of the hot products are compelled to traverse the oven and in doing so heat it and also the pipe 5 and box 6. While this is going on heat is imparted to the boiler 3. In leaving the fire-place the products divide. Part of them travel down through the flues b and c, and thus reach the flues b and 0, of the chimney. The other part of the products rise up over the top of the oven, Fig. 3, through the flues (Z and e. The flue d, reaches the flue cl, of the chimney, as does also the flue 6. Thus it will be seen that a portion of the products of combustion traversing the flues e and (Z, goes over the top of the oven, while the portion traversing the flues c and 5, go under the oven, and they all reach the separate compartments of the chimney and the flue a, Figs. 2 and 3, joins the compartment of the chimney which corresponds to the flue 0.

Each of the flues is provided with a damper and the dampers are designated Z2 0 e and 621, on Fig. 1. There is a flue f, Fig. 3, which is provided with a damper f and which joins the fiue b, in the chimney. It serves to permit gas, etc., to escape when the oven door is open and thus prevents the same from coming out into the face of the observer. Clearly the draft in each flue may be regulated by means of the appropriate damper, or preparatory to and during baking the dampers 0 6 e and (Z are closed, and the damper a is open and the damper 8., is closed, so that the oven is entirely shut off, and whatever products may escape from the fire-place do so by the flue a, and it may be regulated by its damper a all as may be required. The oven having been thus heated and closed at the appropriate time during the baking operation, water is permitted to reach the heated part ofthe pipe 5, and upon doing so it forms steam, which escapes through the perforations into the oven as has been described.

It will be obvious to those skilled in the art to which the invention relates that modifications may be made in details without departing from the spirit thereof, hence I do not limit myself to the precise construction and arrangement of parts hereinabove set forth and illustrated in the accompanying drawings, but

Having thus described the nature and objects of the invention, what I claim as new and desire to secure by Letters Patent is 1. In combination, a baking oven having a single fire-place arranged to preheat the oven by discharging products of combustion through it, means for closing the oven including a damper arranged to close'communication between the oven and fire-place, a perforated water box in the wall of the oven, and an inclined perforated water pipe extending from the outside into and around the oven and communicating with the water box, substantially as described.

2. In combination, a baking oven having a single fire-place arranged to preheat the oven by discharging products of combustion through it, means for closing the oven including a damper arranged to close communication between the oven and fire-place, a perforated water box located in the wall of the oven and provided with an overflow, and an inclined perforated water pipe extending from the outside into and around the oven and communicating with the water box, substantially as described.

3. In combination, a baking even having a single fire-place arranged to preheat the oven by discharging products of combustion through it and having flues extending from different parts of the oven to convey products of combustion therefrom, and a subdivided chimney containing vertically ranging compartments of which one communicates with each flue, substantially as described.

4. In combination, a baking oven having a single fire-place arranged to preheat the oven by discharging products of combustion through it, a chimney subdivided into compartments, flues respectively provided with dampers and communicating with the oven and with the separate compartments of the chimney, a damper between the fire-place and the oven, and an inclined perforated water pipe arranged in the oven, substantially as described.

5. In combination, a baking oven having a single fire-place arranged to preheat the oven by discharging products of combustion through it, a chimney subdivided into compartments, flues respectively provided with dampers and communicating with the oven and with the separate compartments of the chimney, a damper between the fire-place and the oven, a dampered flue from the fireplace to one of the compartments of the chimney, a boiler arranged in proximity with the fire-place, and a water pipe communicating with the boiler and extending into and perforated within the oven, substantially as described.

6. In combination, a baking oven having a single fire-place arranged to preheat the oven by discharging products of combustion through it, a chimney subdivided into compartments, flues respectively provided with dampers and communicating with the oven and with the separate compartments of the chimney, a damper betwen the fire-place and the oven, a dampered flue from the fire-place to one of the compartments of the chimney, a boiler arranged in proximity with the fireplace, a perforated water box at the wall of the oven, and an inclined pipe communicating with the boiler and with the box and perforated where it lies within the oven,.substantially as described.

7. In a baking oven the combination of a In testimony whereof I have hereunto fire place provided at its exit with a groove signed my name.

having on the fire place side a rest, of, a

damper provided with a lower edge seated WILLIAM SCHWARTZ 5 in the groove to constitute a pivot and pro- Witnesses:

vided with a projecting lip adapted to abut W. J. JACKSON,

on the rest, substantially as described. FRANK E. FRENCH.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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