US272692A - Steam heating boiler - Google Patents

Description

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' W. HOPKINS Sr, C. FOGKLER.

STEAM HEATING BOILER.

Patented Feb.

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No. 272,692. Patented Feb.20, 1883.

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UNITED STATES `lZtTENT EEicE.

STEAM HEATING BOILER.

`SPECIEICA'IION forming part of Letters -Patrent No.l 272,692, dated February 20, 1883.

Application filed November 3, 1882. (No model.) l

To all whom zt may concern:

' Be it known that we, WILLIAM HOPKINS and CHARLES FocKLEa, of Dubuque, in the county of Dubuque and State of Iowa, have invented a new and luseful Improvement in Steam Heating Boilers; and We do hereby declare that the following is a full and exact description of the same, reference being had to the accompanying drawings, and to the letters ot reference marked thereon.

The present invention relates to steam heating apparatus for buildings, and particularly that class in which the fuel magazine or reservoir is located within an annular boiler.

The object is essentially to expose the largest possible amount of surface of tne boiler to the action of the heat and products ofcombustion, in order that but little ofthe heat passing over such surface may escape utilization.

It consists vin the novel construction and arrangement of the boiler with relation to the ire-box, and the ei'ective construction and arrangement in such boiler and lire-box of the fuel magazine or reservoir, all'as will be more particularly hereinafter described, and pointed out in the claims.

For a better comprehension and more thorough nnderstandingof our invention, reference may be had to the accompanyingdrawings, in which- Figure 1 represents a vertical longitudinal section of the apparatus; Fig. 2, a top plan view of the same; Fig. 3, a vertical longitudinal section of a modification of the apparatus; Figli, a similar View, in part.. of a modification of the boiler-extension G ofFig. l; Vand Fig. 5, a View, in part, of the adjustable fuel magazine or reservoir, and means by which it is secured in position when raised or lowered.

Like letters of reference indicate corresponding parts throughout the drawings.

ln Figs. 1 and 2, A represents an annular base-plate, having formed within it an ash-pit of ordinary capacity, and supporting the grate B, which may be of any appropriate construction. Abovethis grate, and upon the base-plate A', rests, and is secured thereon by any proper means, the boiler proper, U, preferably of annular form, and provided at its center and lower portion with the tire-box D, from which a passage, a, leads toa door, b, hinged to the outside of the boiler.

around this magazine or reservoir of sulcient 6o diameter to receive the tire-brick c c, which surrounds the lower portion of the magazine and protects the same from destruction by heat. This magazine thus located within the boiler is adapted, when occasion requires, to

be raised and lowered by means of set-screws d d, which pass through ears e e of the boiler C, and engage each with a slot, f, cut in the sides ofthe magazine at a point diainetrically opposite each other and extending down to 7o the upper terminus of the fire-brick c c.

Between the walls of the boiler U and those of the tire-box D is formed the water space or jacket F, having a connection at neck 7L with the boiler-extension G, which is supported by the fire-brick walls of the combustion-chamber H. On the side opposite the door b ofthe boiler c, and opening into the tire-box, are lues i i, extending back and communicating withlhecombustion-chaniber. Theheatwhich is not utilized by the water in the space or jacket F passes ott' with the gaseous products of combustion and smoke through the dues it' into the combustion-chamber, and thence passes up around the drop-tubes I I, through 8c the tlues Ick into the smoke-jacket J, presently to be described. t

The boiler-extension G,located above the combustion-chaniber, is constructed with double wallsll, the space between the saine being 9o filled with water by means of the connection at h -with'the boiler proper, C. Within the inner Walls of this boiler-extension G is arranged a series ot' drop-tubes, I I, depending from a horizontal plate, K, located in the upper portion of said boiler-extension and form, ing a part of the same. These drop-tubes open at their upper ends through the horizontal plate K, to which they are attached, and terminate at their lower ends (which are closed) roo in the conibusiionchamber on a line with the lines leading therefrom to the lire-box. These drop-tubes are also lilled with Water, and the steam generated therein and the several watercompartments of theboilers asrends and passes into a steam-drum, L, located above the horizontalplate K in the upper portion of the boiler extension G. From this drum the steam is conveyed by any suitable connections to the portionsof the building to be heated.

Directly beneath the horizontal plate K, and entirely around the boiler-extension G, is arranged a series of fines, k k, through which the smoke and heat ascending from the combustion-chamber pass oft' into the smoke-jacket J, with which theseiiues communicate. These flues are arranged in the manner described for the purpose of allowing the smoke and heat to pass into the smoke-jacket at various points, and thereby maintain an even and uniform draft on all sides ot' the boiler and between all of the drop-tubes. These lues could be made to communicate with the drop-tubes 1 l,

in which instance the said tubes would be made open at their lower ends and closed at' the top, and the heat, instead of passing up l between and around them, would pass direct1 ly through them, and the water would necessarily be made to circulate around them by any proper construction readily suggested to those skilled in the construction ot' boilers.

In the modification shown in Fig. 3 a portion of the boiler proper, C, is located within the brick wall of the boiler-extension G, and the connection between these two boilers is made by pipes M and N. 'lhe pipes M connect with the water space or jacket F in the upper portion of the boiler C, and, extending' upward, open at their upper ends into the steam-drum L. The pipesN connect with this same water space or jacket in the lower portion of the boiler C, and, extending across the floor ot' the combustion-cliamber tothe opposite wall of the-boiler-extension G, pass up the inner side ofthe same, and connect also with the steam-drum L. When constructed in thisl higher degree of temperature than that in the v pipes N, a good circulation is obtained. It

will also be manifest that the connection between the boiler proper and its extension might action of the heat.

of simple construction and arrangement and.

be made in various ways,'and that the details of their arrangement might be varied to some extent without departing from the gist of the invention.

It will further be apparent frotn the foregoing description that the apparatus presents the greatest possible amount ot surface to the The component parts are properly protected from destruction by' heat. The ad justability of the fuel magazine or reser- Voir enables the same to be raised or lowered when occasion requires, and when so worn as to beunlitfor use it can be readily removed and replaced by another without necessitating the removal of other portions of the apparatus.

What we claim, and desire to secure by Letters Patent, is-

1. The combination,in a steam 'heating ap paratus,ofan annular boiler,a vertically-adjustable fuel-magazine arranged within the same, a tire-box surrounded by a Water space or jacket, and horizontal lues leading from said tire-box and communicating direct. with the rear combustion-chamber, as set forth.

2. In a steam heatin g apparatus, the boiler C and fuel magazine or reservoir E, provided respectively with the set-screws d d. and slots ff, by means of which the said magazine or reservoir, when raised or lowered, can be secured in position, substantially as described, shown, and for the purpose set forth.

3. In a steam heating apparatus, the combination, with the annular boiler C, provided with the vertically-adjustable fuel-magazine E, tire-box D, and tlues t' fi, substantially as described and shown, of the boiler-extension G, mounted upon the walls of the combustionchamber, and having a water-space on its interior and a steam-drum at its upper end, substantially as described and shown.

4. In thesteam heatingapparatus described, and in combination, the combustion-chamber H, boiler-extension G, drop-tubes I I, smoketlues la k, smoke-jacket J, and steam-drum L, all constructed and arranged substantially as described. shown, and for the purpose set forth.

In testimony whereof we affix our signatures in presence of two witnesses.

WILLIAM HOPKINS. CHARLES FOUKLElt.

'Witnesses Mormon M. GABY, WILLIAM GRAHAM.

IOO

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