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Número de publicaciónUS566924 A
Tipo de publicaciónConcesión
Fecha de publicación1 Sep 1896
Fecha de presentación22 Abr 1896
Número de publicaciónUS 566924 A, US 566924A, US-A-566924, US566924 A, US566924A
InventoresThomas F. Morrin
Exportar citaBiBTeX, EndNote, RefMan
Enlaces externos: USPTO, Cesión de USPTO, Espacenet
Furnace for steam-generators
US 566924 A
Resumen  disponible en
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Reclamaciones  disponible en
Descripción  (El texto procesado por OCR puede contener errores)

(No Model.) 2 Sheets-Sheet 1.


y FURNAGB FOR STEAM GENERATORS. No. 566,924. Patented Sept. l, 1896.


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`(No Model.) 2 Sheets-Sheet 2',


No. 566,924. Patented Sept. 1, 1896.





SPECIFICATION forming part of Letters Iatent No. 566,924, dated September 1, 1896.

Application fileil April 22, 1896.V

To all whom t may concern:

Be 'it known that 1, THOMAS F. MOREIN, a citizen of the United States, residing at Jersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Furnaces for Steam-Generators, of which the following is a speciiication.

This invention relates mainly to the construction of the tiles or lining-bricks for furnaces of steam-generators; and the object is, in the main, to adapt the furnace for burning soft coal with the production of a very little or no smoke, or, in other words, the more perfect combustion of the fuel.

As herein shown, my invention is represented applied to the annular furnace of an upright boiler or steam-generator of a wellknown kind.

ln the accompanying drawings, Figure lis a vertical diametrical section of the furnace. Fig. 2 is a horizontal section of one-half of the same, taken in the plane indicated by line c2 in Fig. l. Fig. 3 is a side elevation of the furnace broken away at the right to show one of the charging-doors in section. Fig. 4 is an inside face view of one of the furnace-doors, and Fig. 4a is a vertical section in the plane of line x4 in Fig. Al. Fig. 5 is a perspective view, on a larger scale than the principal views, showing the four parts or tiles which form the door-casing. Figs. 6 and 6a are perspective views of one of the apertured tiles used in the circular wall or lining of the furnace. Fig. 7 is a view similar to Fig. 6 of one of the non-apertured upper tiles of the furnace-wall. Fig. 8 is a plan view of a fragment of the ring-bracket 0n which the lining-tiles rest.

X represents the upright generator, Y the outer cylindrical metal casing, and Z the annular grate or fire-bed. These may be all of the usual kind. As here shown, there are four ash-doors .e in the casing below the grate and four charging-doors and door-openings y in the furnace, arranged above the respective ashdoors.

My invention resides in the refractory line ing of the casing Y from. the grate upto the top of the furnace at w, and the purpose is,l

in the main, to so construct this lining that it will provide numerous equally-distributed serai No. 588,548. (No model.)

twyers for supplying hot air to the furnace about its sides in quantity sufficient to com- -bine with the free carbon from the fuel and prevent the formation of smoke. Another feature of the invention is to interpose air between the hot lining and the relatively thin metal casin g Y to keep down the temperature of the latter.

The lining of the furnace is made up of tiles A (seen in Figs. 6 and 6a) up to about the top of the charging-door casings, and from that point up to the line fw of tiles B. (Seen in Fig. 7.) The tile A has extending through it from one of its bedding-faces to the other a iiue or passage a., and at its respective ends it has half-fines a', which, when the tiles are laid side by side, as in Fig. 2, form full iues a with the half-lines in the adjacent tiles. Thus each tile A has in it one full and two half -lues, and when the tiles are laid in courses, so as to break joints, these flues a form continuous iiues extending up through the wall to the superposed tiers of non-apertured tiles B. The lower tier of tiles A rests on a metal flange-ring or ring-bracket C, iiXed to the casing, and in this flange-ring are apertures c, Fig. l, which are spaced so as to register with the flues or apertures in the tiles A, in order that air from the ash-box below the grate may pass up into the iiues @in the tiles. Leading from each flue in the tiles, at each course of tiles, is a lateral jet-passage or twyer a2, which opens into the furnace. For convenience in molding the tile A the flues a2 are formed by grooves in the faces of the said tiles. Preferably the twyer a2 will be formed one half in the face of one tile and the other half by quarter-round grooves at the corners or end angles of the tile. This construction is illustrated in Fig. 6, which shows a tile A superposed on and breaking joints with two other like tiles. The -air in passing up through the flues a becomes heated and escapes into the furnace in jets all about its walls through the twyers c2.

In the outer faces of the tilesA are formed grooves c3, which forni iiues or air-spaces within the inclosing casing Y, and the air therein forms a non conducting medium which protects the casing from heat transmitted through the tiles. /These grooves a3 are also provided in the tiles B, (see Fig. 7,)

so that the said air-spaces are made to extend up to the top of the furnace-wall or lining. Where the charging-openings are formed in the furnace-walls, these openings are framed by casings, (see Fig. 5,) each of which is composed of four specially-formed tiles; that is, there are two like side posts or tiles d d and two tiles d' d', fitted together to form the lintel or arch. These latter mem- 1o bers may be locked or keyed at t-he crown of the arch by a brick or tile d2, (seen detached in Fig. 5,) which ts into keyways in the abutting faces of the members or tiles d. In the tiles d and CZ', at each side of the door-casing,

I5 is formed a flue cl3, through which air passes up from the ash-box into the furnace. There are or may be also a series of air-inlets (Z4 through the tiles d' for the admission of. air

to the furnace. By preference the frame or 2o casing about the charging-door will be so proportioned as to height that it shall extend just to the top of the courses of tiles A, and the members d cl of said casing may have in their outer faces recesses or grooves d5 (seen 2 5 in Figs. 2 and 4f) corresponding to the grooves Y asin the lining-tiles A and B to provide nonconducting air-spaces between the door-casing tiles and the outer metal casing of the furnace. The grooves a3 in the tiles B are 3o not very important, as these tiles are not exposed to such intense heat as the tiles below, and therefore said grooves may be omitted from the tiles B without detriment.

Having thus described my invention, I claiml. A boiler-furnace having an outer metal casing circular in plan and lined with tiles between the doors, said tiles being laid in tiers and having in them lines a, open to re- 4o ceive air at the bottom and lateral branches or twyers, a?, in each tile extending from each iiue into the fire-box from every tile, and each of said doors having a tile-easing provided also vwith fines and twyers, substantially as set forth.

2. A tile A, for the lining of a boiler-furnace, having in it a central flue a, half-flues a at its ends, and six grooves, to form twyers a2, formed at its corners ,and at its midd1e, three in each face, and extending from the ues to the inner edge of the tile, substantially as herein described.

3. A tile A, for the lining of a cylindrical boiler-furnace, having a central flue a, two half-fines a', one at each end, six grooves, to form twyers a2, three in each face of the tile and extending from the flues to the inner edge thereof, and two grooves asin the outer edge of the tile, substantially as and for the purposes set forth.

1. A lining-tile for the fire-box of a furnace having a central `flue d and half-.fines a', one at eachend, proportioned as described, whereby when the said tiles are built up in tiers to break joints the half-fines in one tier will register with Athe full flues of the next adja cent tier, and .having lateral grooves from said flues to the inner faces of the tiles to forni twyers a2, substantially as set forth.

5. A door-casing for the lining of a furnace consisting of two like tiles d, forming side posts and two tiles d', forming the arch, said tiles having in them the fines d3, open at their lower ends for the admission of air and opening at their upper ends into the furnace, substantially as set forth.

In witness whereof I have hereunto signed my name in the presence of `two subscribing witnesses.




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Clasificación cooperativaF23M5/085