US91069A - Improvement in combined steam-generator and stove - Google Patents

Description

L. F. BANCROFT.

Cooking Stove.

w No. 91,069. Patented June 8, 1869 I711) nform did-1rd grates intent jifiirn.

Letters Patent No. 91,069, dated June 8, 1869.

IMPROVEMENT IN COMBINED STEAM-GENERATOR AND strove.

The Schedule referred to in these Letters Patent and making part of the same.

Know all men by these presents:

,That I, L. F. BANCROFT,-0f the city and county of Worcester, and Commonwealth of Massachusetts, have invented certain -new and useful Improvements in Combined Stove and Steam-Generator, of which the following is a full, clean-and exact description, reference being had to the accompanying drawings, forming a part of this specification, in which- Figure 1 represents a side view of so much of a stove and steam-boiler as is necessary to illustrate my present improvement, 2. portion of the side of the stove being shown broken away, and

Figure 2 representsa front view of the same, with the front part of the stove broken away, or in section.

To enable those skilled in the art to which my invention belongs, to make and use the same, I will describe it more in detail.

- The nature of my invention consists in the combination, with a common or ordinary cooking-stove, of a steam-generator, as will be hereafter explained.

In the drawings A represents the bottom part of a stove;

B, the top; and

O, the fire-chamber, all of which parts may be made in any of the well-known modes.

' Upon the rear part of the stove is arrangedthe steam-generator D, upon the top of which is a detachable fire-chamber or drum, E, from which passes a smoke or draught-pipe, E, and in which is arranged a damper, a.

Another smoke or draught-pipe, Gfhads from the rear part of the stove, and enters the smoke-pipe F back of the damper a, as indicated in fig. 1.

The rear part of the top stove-plate, under the bottom of the boiler D, is cored out, to admit of the heated air and gas coming in contact with the bottom of the boiler.

Small tubular fines pass up through the boiler, and by which the heatedair, is conducted through the water in the boiler to the drum E, from which it passes to the chimney, through the smoke-pipe F.

By closing damper a, and opening damper b, the heated air is conducted ofi' without passing through the boiler.

From the bottom of the boiler a water-pipe, H, runs to the water-chamber or back I, in the back of the fire-chamber. The end of said pipe may extend down into and near to the bottom of the water-chamber I, as indicated 'in dotted lines, fig. 2.

From the top of the opposite end of the waterchamber I, another pipe, J, extends back in an upward direction, and enters the bottom of the boiler at the opposite endfrom the pipe H.

From the bottom of the right-hand end of waterchanibcr I, a pipe, K, extends forward to near the front of the fire-chamber 0, then turns and runs along the front side of said chamber, then turns and enters the water-chamber I, at the left upper corner, as fully indicated in the drawings.

Fuel being placed in the fire-chamber O of the stove, and ignited, the heat therefrom generates steam from the water in pipe K, and the Water-chamber I. The steam, as it is generated in. pipe K, passe's up through said inclined pipe into chamber I, and from thence, through the inclined pipe J, to the boiler D,

and thence, through pipe L, it maybe drawn for heating and warming-purposes, as before explained.

The water-chamber, if the upper part is made horizontal, as indicated in the drawings, should -be provided with an inside filling along its upper edge, of the form indicated by dotted lines, fig. 2, for the purpose of conducting the steam, as it rises to the top of chamber I, to the end in which pipe J is inserted.

It will be seen that the arrangement of pipes and water-chambers is such that the steam is conducted away from the generating-points as fast as generated, and that a fresh supply of water is constantly passing down through pipe H, whereby chamber I and pipe K will always be properly supplied with water, so long as there is any in the boiler.

It will be understood thatasafety-valve is to be applied to the steam-pipe L, in some one of the wellknown modes.

The drum E being always warm, furnishes a very convenient stand upon which to place articles to be slightly warmed.

In cases where a head of water can be obtained, the boiler may be kept supplied by an automatic-operating valve.

As the upper end of pipe J projects up into boiler D, as indicated in dotted lines, fig. 2, a constant and perfect circulation of water and steam through chamher I and-pipe K is insured.

Having described my combined stove and steamboiler,

' What I claim as new, and of my invention, and dcsire to secure by Letters Patent, is

l. The combination, with the rear part of the upper plate of the cooking-stove, of a steam-generator, D, and draught-fines, G F, substantially as set forth.

2. The combination, with the stove A, and boiler D, of water-chamber I, pipes H J, drum E, and smoke or draught-fines G and 1*, provided with dampers a I), said parts being arranged, in r elation to each other,

substantially as set forth.

L. F. BANOROFT. \Vitnesses:

Tnos. H. Donen, D. L. MILLER.

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