US679796A - Coking and steam-producing attachment for furnaces. - Google Patents

Description

No. 679,796. Patented Aug. 6, I90I.

T. J. TILLER.

comma AND STEAM PRODUCING ATTACHMENT FOR FURNACES.

(Application filed Dec. 10, 1900.)

2 Sheets-Sheet i.

(No Model.)

mm 1" ass //v VEN TOR. 77'IUMAS d T/L LE? A rTo/m/ars- THE Noam PETERS co, PnoTmLwnm wAsumomu, n. L,

No. 679,796. Patented Aug. 6, IQOI. T. J. TILLER. COKING AN'D STEAM PRODUCING ATTACHH'ENT FUR FURNACES.

(Application filed Dec. 10, 1900.)

2 Sheets-Sheet 2.

(No Model.)

, INVENTOI? THU/11 75 J. T/LLEfi BY w 7M WITNESSES A TTOHNEYSA walls.

' UNITED STATES PATENT OFFICE.

THOMAS J. TILLER, OF RICHMOND, VIRGINIA, ASSIGNOR OF THREE- FOURTHS TO WYATT L. GOODE, RICHARD N. GOODE, LOUIS GOLD- BAOK, JOS. KENDLER, AND H. BERNSTEIN, OF SAME PLACE.

COKING AND STEAMTPRODUCING ATTACHMENT FOR FURNACES.

SPECIFICATION forming part of Letters Patent No. 679,796, dated August 6, 1 901.

Application filed December 10,1900. Serial No. 89,825- CNo model.)

To all whom it may concern:

Be it known that I, THOMAS J. TILLER, of Rlchmond, in the county of Henrico and State gas producing attachment for boiler furnaces, particularly adapted for locomotive and steamboat furnaces; and its object is to provide a coking chamber or oven which may be suspended within the fire-chamber of the furnace and which is preferably provided with hollow walls and a hollow water grate orbottom to prevent its burning out and to make the oven also serve as a waterheater for the water circulating within its In operation coal is introduced into the coking-oven formed by this attachment and reduced to coke by the heat within the fire-chamber, and the generated gases are conducted into the fire-chamber and there burned, and when the coal has been coked it is dumped directly onto the grate in the fire-chamber and there consumed in the ordinary manner, while fresh coal is placed in the oven to be gasified and coked, as before.

My present invention possesses many advantages over the coke-producing boiler-furnaces heretofore known and may be economically adapted to locomotive and other boiler furnaces now in use. Locomotives to which this apparatus may be applied or attached can thus be fired with coke and will make their own coke by the same fire which is used to generate the steam, the gases generated in the coking-oven being burned in the fire-chamber, and thus ina measure the coal is caused to coke itself, and the'thick black smoke and waste gases ordinarily generated upon the addition of fresh fuel to the fire will be almost, if not quite, wholly avoided, with a resultant increased economy of fuel.

The invention therefore consists in the novel construction and combination of parts hereinafter described and claimed, and the age is prevented by means of glands 71 accompanying drawings illustrate the best embodiment of the'invention now known to me as applied to a locomotive-boiler furnace.

In the drawings, Figure 1 is a longitudinal section through part of a locomotive-boiler furnace, showing the coking attachment in longitudinal section. Fig. 2 is a transverse vertical section on line 2 2, Fig. 1. Fig. 3 is a front end elevation of the boiler, showing the water connections between the boiler and the coking oven. Fig. 4 is a perspective View of the coking-oven detached. Figs. 5 and 6 are enlarged longitudinal sectional views of the water hinge connections of the dumping bottom of the oven.

A designates a boilenfurnace of. the ordinary locomotive type, having a fire-chamber B and smoke-tubes O leading from said chamber through the water-space. The chamber is provided with an ordinary grate to support the fire, as shown. a

The coking-oven E is arranged in the upper part of the fire-chamber and, as shown, is rectangular in form and has hollow walls formed by metallic sheets f and g, which may be suitably connected by intermediate stays. The bottom of the oven is formed by two hollow plates or grate-pieces F F, which are each supported upon hollow trunnions G and H. The trunnions G extend through the front plate I) of the fire-chamber and are rotatably connected tothe lower ends of pipes G, which extend to and are connected with the waterspace ofthe boiler, as shown, and valves 9 are placed in pipes G for regulating the circulation of water. Leakage is prevented between the pipes G and trunnions G by means of glands g Enlarged bearings 12 may be provided for the trunnions G where they pass through the outer wall I). The trunnions H are rotatably journaled in hollow extensions 92 of the sides of the oven, as shown, and leallf- T e oven is suspended in the fire-box by means of tubular hangers, which connect its top with 5 the water-space of the boiler above the firechamber, and thus free circulation of water through the walls and bottom-plates of the oven is provided for. A suitable number and arrangement of hangers 'i may be employed to hang the oven in position from the plate D, and it may be additionally supported, if required, in any desired way. The upper and lower walls f g of the plates F may he stayed in any suitable manner.- As shown, tubular stays Z are employed, and like stays k may be used in the sides of the oven, or solid stays maybe used,if desired, especially in the sides, or the latter maybe left imperforate, front end of the oven is left open; but in this opening a is fitted a collar e, which is also fitted toan opening in the front plate b 'of the fire-chamber, and through this opening coal may be introduced into the coking-oven,

and this openingmay-be closed by a door e,

which is shown of conventional construction and is preferably made to close tightly. In. kindling thefire fuel may be introduced intov the. fire-chamber B through thBdOO 12,.hs usual. The inner end of the oven is slant-ed rearwardly and upwardly, as at m, leaving free wayfor the escape of the heatedprod-- nets of combustion through the tube 0.

K K are pipes by which the gases from the oven are conducted into the fire-chamber to be consumed I i As the bottom plates Fjof the oven are hinged, it is necessary to provide means for 1 n o ver g y b6 a tached ahead-- operating them. As shown, levers g are connected to the trunnions G and in turn are connected by rods i to the opposite ends of an intermediate lever I, which is pivoted on a stud '5, projecting from the plate '17". To

leve 9 y' h c th y t of levers may be op a s s to either close th d rs theposi-tionshown in full lines, OitO open thedoors in the position shown in dotted lines in said figure. A stop 0 is attached to plate I) in position to be engaged by lever g and hold'the same in the position to which it is adjusted.

, In operating the apparatus fire is'kindled in the fire-chamber B through the door I) in any suitable manner, and coal is introduced into the coking-oven E] through the door 6. The coal is "coked in the oven by the heat in the fire-chamber, and the gases escaping from 6o coke instead of fresh coal in-the fire-chamber. 1

the black smoke and soot which are always the oven are conducted back to the fire-chamber through pipes K and consumed therein;

When the coal. in the oven is coked, it may be dumped into the fire-chamber to maintain combustion therein, while fresh coal is placed in the coking-chamber. It will be observed that not only is the coal coked in the cokingcharnber, but that the hollow Walls Of the latter are used to heat the water, and thus the coking-oven is prevented from being rapidly destroyed by the heat, as it might be if thewalls were solid. Obviously by burning the generated whenever fresh coal is thrown upon the-fire of a boiler-furnace is avoided anda clean fire'is maintained, such as, is found in.

coke-burnin g furnaces, and the invention will The therefore be of great n tility on railways,where the smoke and .cinders of ordinary coal-burning locomotives are such a great annoyance and detriment. ,flhe invention also economizes fuel by burning the gases generated in the coking-oven during the heating of the coal therein, which ordinarily would be carried ofiv with the products of combustion and wasted, 7

[By providing the oven with hollow walls,

as shown,and connecting the same with the water-heating space of the boiler it is obvious that the water-heating surface is greatly enlarged, and as the coking-oven is located in the hottestpart "of the fire-'boxthe water in the Wallsthereof will be very highly heated,

and thus become a very efiicient auxiliary to increase the steaming capacity of the boiler, water beingadmitted freely into the hollow walls through the pipe connectionsand steam also readily escaping back into the boiler through the same.

Having thus described my invention, what I therefore claim as new, and desire to secure y Let rs ate t the eon, is;

l. The combination with a boiler-furnace, of a cokingoven suspended in the fire-chamher, said even being provided with hollow plates formingits bottom, means for dumpingsaid plates, and connections for circulating water through said plates, substantially as described. V Y

The combination with a boiler-furnace, of a coking-oven suspended in the upper part of the fire=chamber and provided with hollow bottom-plates hinged on tubular supports,and

coking-oven suspended in the fire-chamber thereof and having hollow wallsand hollow dumping bottom-plates,water connections between the hollow walls'of the oven and plates,

and the water-space of the boiler, means for introducing coal into the oven, means for conducting the gas from the oven into the firechamber, and means for dumping the bottomplates to discharge the coke from vthe oven into the lire-chamber, substantially as describedt i v 5,. The combination with a boiler-furnace,

Of. a cokingoven suspended in the upper part 1 of the fire-chamber, said oven being provided with hollow plates forming its bottom, said plates being hinged on tubular supports, and connections for admitting water through said supports'into said plates; with meansfor in- IIO troducing coal into the oven, and connections between the hollow bottom-plates and the Water-space of the boiler, for the purpose and ated in the oven into the fire-chamber, and

ducting gases generated in the oven back into the fire-chamber, and pipes connecting the trunnions of said bottom-plates with the water-space of the boiler, all substantially as and for the purpose set forth.

8. The combination of a boiler-furnace, a coking-oven in the fire-chamber thereof having opposite hollow bottom-plates provided with hollow trunnions extending through the front wall of the fire-chamber, levers connected to the said trunnions, an intermediate pivoted lever, and links connecting said le-' vers to the opposite ends of said pivoted lever whereby said bottom-plates are opened or closed simultaneously, and water connections between said plates and the boiler, all sub stantially as and for the purpose described,

9. The combination of a boiler-furnace, a hollow-Walled coking-oven in the upper part of the fire-chamber thereof having opposite hollow plates forming its bottom, the levers connected to the trunnions of said plates, the links connecting said levers to the opposite ends of an intermediate pivotedlever where'- by said plates are opened or closed simultaneously, pipe connections between the hollow walls of the oven and the water-space of the boiler, and pipe connections between the water-space of the boiler and the hollow bottom= plates, and means for conducting gases from the oven into the fire-chamber, substantially as and for the purpose set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

THOMAS J. TILLER, Witnesses:

C. P. GARDWELL, ALEX. STUART GIBSON.

Images