US444802A - van stone - Google Patents

Description

(No Model.) 5 sheets-sheet 1.

E. D. VAN STONE. HOT WATER AND STEAM HEATER.

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.Patented Jan. 13, 1891.

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E. D. VAN STONE. E oT WATER AND STEAM EEATEE.

Patented Jan. 13,1891.

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HOT WATER AND STEAM HEATER. No. 444,802. Patented Jan. 13, 1891,

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- E. D. VAN ST.

HOT WATER ANDSTEA H ATER.

No. 444,802. Patented Jaln. 1s, 1891.

@einen STATES ArnNr trice. f

EDWIN D. VAN STONE, OF UTIOA, NEIV YORK, ASSIGNOR TO RUSSELL lVHEEL'ER AND FRANK E. VIIEELER, OF SAME PLACE.

HOT-WATER AND STEAM HEATER.

SPECIFICATION forming part of Letters Patent No. 444,802, dated January 13, 1891.

Application filed April l5, 1890. Serial No. 348,131. (No model.)

To all whom it may concern:

Be it known that 1, EDWIN D. VAN STONE, a citizen of the United States, and a resident of Utica, in the county of Oneida and State of New York, have invented certa-in new and useful Improvem en ts in Hot-Tater and Steam loilers, of which the following is a specicatn.

My invention relates to improvements in boilers for hot-Water and steam heating; and it has special relation to the construction and combined operation of the parts, whereby I secure, as I believe, better circulation of the water, reduced cost in the manufacture, less labor and expense in erecting, and less care and attention during use than heretofore; also, I am enabled to give an excessive inclination to the crown-sheet without increasing the height of the boiler.

Heretofore boilers of the class to which I refer have been made embodying certain of the features which are present in my improved boiler; but all such prior structures have been open to various objections, which are quite serious in their nature. It is the object of my present invention, as will hereinafter appear, to obviate some of these objections.

I will first describe the construction of my improved boiler, having reference to the drawings accompanying this specification, and I will then recite some of the advantages which follow from my special construction.

In the drawings the same reference-letters indicate the same parts in all the figures.

Figure lis a vertical section from the front to the rear of the boiler. Fig. 2 is a vertical section through the front vertical water columns on thc line X X of Fig. l. Fig. is atop plan view of the fire-pot section. Fig. I is a top plan view of the first section above thc fire-pot section. Fig. 5 is a top plan view of the second section above the fire-pot section. Fig. 6 is a bottom plan view of the third sec tion above the fire-pot section. Fig. 7 is a top plan view of the manifold or uppermost section. Fig. 8 is a front elevation of the parts adjoining the cleaning-door in one of the upper sections. Fig. 9 is a sectional plan view of Fig. I on the line Y Y.

Although I have described and shown in the drawings a definite number of sections, it

is obvious that a greater or less number may be used, the parts being adapted to the change in a manner now well understood.

Referring more particularly to Figs. I and 2, A is the base. B is the ash-pit. C is the grate. D is the fire-pot section, in which, as is well understood, the fire is made. E is the Iirst or crown-sheet section, immediately above the fire and covering the fire-pot chamber. E is the second section above the firepot. E2 is the third section above the hre-pot. E3 is the upper or manifold section. The ccnstruction of the base A, ash-pit B, and grate C do not require special description. They maybe of any preferred form. My invention especially relates to the parts above the grate. F is a water-leg, which entirely sui'- rounds the lire-pot section, excepting at the feed-mouth opening G and the slicerdoor H. I I, dre., are inwardly-extending fingers formed on the lower part of the fire-pot above the bottom of the water-leg F. They are separated by a greater or less space, as shown. Their function is to protect the base of the fire from the deadening effect of the water in the water-leg and to afford additional airsupply to the fire, whereby a deeper iire may be used and frequent attention avoided. J are fingers arranged below the front of the water-leg F, inside of the Slicer-door Il, to serve as retaining means for the fire-to keep it away from the slicer-door II, and also as a means for viewing the operation of slicing and shaking the grate. T ie feed-mouth G, as shown in these figures, is made partly in the iirepot section D and partlyin an extension of the crown-sheet E; but I wish it to be understood that I do not limit myself to this construction. The door may be made more or less in these two parts or wholly in either. K K are inclined waterpassages made in the crown-sheet E. They connect with the waterleg F through one or more openings L, and the passage or passages L extend upwardly as a vertical water column through the sections E, E', E2, and E3, as shown at L', L2, and L3, respectively. M M are two vertical water columns at the forward part of the boiler, although there may be but one, if preferred. They connect with the upper end of the inclined passages K in the crown-sheet and pass upwardly through the bottom of the inani- IOC 3o clined water-Ways in the crown-sheet.

io water-passages K in the crown-sheeta greater inclination than those in the upper sections, because its location relative to the fire is such that it receives a large proportion of its total heat, and I wish the water to circulate through i5 it as rapidly as may be in order to prevent the generation of steam when the device is used for hot-water heating, and to cause a circulation of the water in the section itself when the device is used for steam. I would zo give the inclined passages K' and K3 the same inclination as the passages K in the crownsheet were it not that I desire to reduce the lue areas O between the sections as much as possible, (experience having taught that but slight inclination is required in the sections above the crown-sheet section,) so that the hot gases may be held in closer contact with the surfaces of the water-passages. P P are vertical flue-passages made through the in- I prefer to have the flue-openings in the front of the crown-sheet section larger than those in the rear, as shown, the better to distribute the heat. P' are similar flue-passages through' `the inclined water-ways in the section E at the rear. P' are similar flue-passages in the section E2, staggered with the [ine-passages. P Pgis a large line-passage through the bottom of the manifold section E3, which is inclosed 4o through it by a casing or pipe-section P4,

which serves as a smoke-exit and connects with the smoke-pipe P5, which is attached to the upper plate of the manifold. R, R', and R2 are cleaning-doors, through which the in- 4 5 ternal surfaces may be cleaned, as now well understood. S S, &e., are the flow-pipe openings through the top of the manifold. T is a bolt or rod which extends through the vertical water-passages L', L2, and L3, and screws 5o into a threaded hole in (or is ot-herwise attached to) a bar or lug F', formed on or attached to the fire-pot section. These bolts or rods T pass througha hole made in the upper plate of the manifold, and project above the same far enough to have a nut screwed thereon, and i n order that the manifold section may be more easily placed over the ends of these rods I make the under surface ot' its upper plate adjacent to the bolt-hole conical,

6o so that the ends of the bolts will be guided directly into the bolt-holes. These rods (there being one iny each of the vertical waterpassages) serve to clamp all the sections firmly together. There are several advantages in this method of attaching the rods.

First the sections may be superposed upon each other, all but the manifold section, with` ont the rods being in place. Thus it is not necessary to lift these heavy sections over the tops ot' the rods, as is now necessary in many other heaters. I also avoid the use of long rods, thus reducing expansion and contraction and also lessening the cost, and the attachment for the lower end of the rod being in a water-space does not require to be packed in any manner.

The construction of the inclined water-passages is seen best in Figs. 4 and -that is to say, the water passes through tubular Opeliings made across the inclined part of the section, connecting at their ends with a waterring d', which entirely surrounds each section, and the water-ring in each section is in direct communication with the vertical water-passages L, M, and M'. Thus each section is in effect a lboiler by itself, having a circulationof its own independent of every other section, which is controlled by the temperature of that particular section only, and is not influenced by the temperature of the other sections, and having also its own watersupply and water-discharge; also, the water received at one side of each section passes through it in its inclined passages and dis-V charges at the opposite side, being entirely independent of the water circulation in the adjacent sections. Thusin my boiler, neither of the sections is hampered by the resistances of the upper sections; also, by the staggered arrangement of my flue-passages, both vertically and from side to side of the boiler, I secure a greater length of flue travel, thus retaining the heated gases in the boiler and in contact with the water-surfaces as long as possible.

In Fig. 8 I show an improvement in the construction of the sections adjacent to the cleaning-doors-tl e., I provide openings d d, &c., between the front ends of the inclined Waterpassages opposite the cleaning-doors, so that the sections may be set closer together than in other forms of heater and still sufficient space be afforded for cleaning.

At e e, Fig. 2, I show an improvement by which I reduce the vertical flue areas and produce the cross-circuits of the gases. It consists in casting the sections with a web e e, extending across the spaces between the inclined water-passages clear across the section, excepting where the flue-openings are formed.

Among the advantages which I secure by my special construction are the following:

First. The vertical water columns being within the external line of the boiler render the jacketiug of the same when desired easy and less expensive than if they projected; also, the cost of manufacture is much lessened in the coring, casting, and fitting of the sections and in various other details.

Second. rlhe excessive inclination given to the water-passages K in the crown-sheet determines the course in which the Water shall move and secures more rapid circulation,

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thereby increasin theefficiency of the crownsheet.

Third. By making the feed-mouth G partly or wholly in the water-ring of the crown-sheet I am enabled to secure this excessive inclination of the Water-passages in the crown-sheet without increasing the height of the boiler, and I also bring the crown-sheet closer to the surface of the fire.

Fourth. By the described inclination of the water-passages I positively determine the direction in which the water shall move and avoid conict between incoming` and outgoing currents, thus avoiding the generation of steam in the crown-sheet, from which follow disastrous results, as is Well understood.

Fifth. By the employment of the fingers I in the lower part of the fire-pot section I, as already stated, afford an increased air-supply to the fire, and also protect it against the deadening effect of the water in the waterleg F.

Sixth. By the employment of the fingers J in combination with the Slicer-door II, I am enabled to thoroughly clear the surface of the grate, and also to View the shaking and slicing operation, and in order that this may be done with the Slicer-door H closed I prefer to set micatherein, as now Well understood.

Seventh. The web e c (see Fig. 2) serves as a means of reducing the vertical flue-passages and producing the cross-circuit of the gases, and being integral with the section will not become warped or displaced.

I do not limit myself to the precise details of construction shown, since it will be obvious to those who are familiar with this art that modifications may be made therein and still the essentials of my improvements be employed.

1. The combination, in a boiler, of a firepot section having a water-leg surrounding the same and superposed separated horizontal sections, the internal water-passages only of which are inclined from side to side of the heater and communicating at their lower and upper ends with vertical water-passages made by means of openings through the top and bottom plates of the sections and wit-hin the exterior line of the boiler, substantially as set forth.

2. The combination, in a boiler, of a firepot surrounded by a Water-leg, a separate horizontal crown-sheet section, the internal water-Ways of which are inclined from side to side of the heater, the inclination being all on the same line, and additional superposed sections having like inclined water ways through them, the Water-ways in the crownsheet having greater inclination than those in the superposed sections, and the inclined water-ways in all of the sections communieating at both ends with vertical water-columns, substantially as set forth.

3. In a boiler, the combination of a firepot and superposed separated sections, the external surfaces of which are horizontal, each having vertical water-passages and also inclined internal water-passages 'and fines through them, the inclination of the inclined waterpassages differing in different sections, substantially as set forth.

4. In a boiler, the combination of a firepot, superposed separated horizontal sections, each having vertical water-passages and in- @lined internal water-passages, the degree of inclination of the inclined water-passages being different in different sections at alternate sides of the heater, and fines formed through the sections, substantially as set forth.

5. In a sectional boiler, the combination of a fire-pot section and a crown-sheet section the external surfaces of which are horizontal and having internal water-passages inclined from side to side of the heater, and a feedmouth located partly or wholly within the crown-sheet section, substantially as set forth.

G. The combination, in a boiler, of a firepot and superposed separated sections the external surfaces of which are horizontal,the superposed sections having vertical waterpassages and internal passages inclined from side to side of the heater, and a feed-mouth partly or wholly within the crown-sheet section, substantially as set forth.

7. In a boiler, a tire-pot section having a water-chamber and inwardly-proj ecting separated or perforated iingers or flanges extending above the bottom of the Water-chamber, an opening for slicing made in the water-leg of the tire-pot, and separated fingers bet-Ween the Slicer-door and the fire, substantially as set forth.

8. In a boiler, a horizontal crown-sheet section having vertical water-passages at dierent sides, internal water-passages inclined from sfide to side of the heater and communicating at both ends with the vertical Waterpassages, the vertical Water-passages which communicate with the uppermost ends of the inclined passages extending directly to the manifold section at the top of the boiler, and a feed-mouth part-ly or wholly Within the crown-sheet section, substantially as set forth.

9. In a boiler having cleaning-doors in its upper part, upwardly-extending recesses between the ends of the crosswise Water-tubes, whereby cleaning of the surfaces is facilitated, substantially as set forth.

l0. In a boiler, the combination, with a firepot, of a series of superposed horizontal sections having inclined internal water-ways extending from side to side of the section, and continuous vertical water-ways connecting all the sections on their outer edges only, the upper ends whereof open into the manifold, the said vertical water-ways being within the exterior line of the boiler, and staggered fluepassages through the sections, substantially as set forth.

l1. In a boiler, the combination, witha lirepot, of a series of superposed horizontal sec- IOO tionslraving inclined water-passages and vcrtical water-passages connecting' all the sections on the outer edges only, the upper ends whereof o'pen into the manifold, the said vertical water-passages being" within the exterior line of the boiler, substantially as set forth.

12. In a boiler, the combination of a firepot and superposed horizontal sections, the

sections having' inclined transverse waterpassages and vertical water-passages formed by means of openings made through the top and bottoni plate of the sections, respectively, and within the exterior line of the boiler, the upper ends of said Vertical passages connecting` with the manifold, substantially as set forth.

13. In a boiler, the combination of a firepot and superposed horizontal sections having inclined water-passages, and vertical water-passages formed by openings made in the Lipper and lowerplate of the sections, respectively, and within the exterior line of the boiler, one at least of said vertical waterpassages connecting with the manifold, substantially as set forth.

14. A section for a sectional boiler having transverse water-passages and vertical flueopenings, the spaces between the Hue-openings being closed by webs extending across the spaces between the water-passages made integral with the section, whereby the vertical ilue-passages are reduced in area and the cross-circuits of the gases are secured, substantially as set forth.

15. In a boiler, a fire-pot surrounded by a water-cliamberand having integral therewith inwardly-projecting separated or perforated fingers or flanges extending,` above the bottorn of the water-chamber, substantially as set forth.

Signed at New York,in the county of New York and State of New York, this 4th day of April7 A. D. 1890. Y

E. D. VAN STONE. iVitnesses:

PHILLIPS ABBOTT, FREDERICK SMITH.

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