US731032A - Garbage-crematory. - Google Patents

Description

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GARBAGE GREMATORY. APPLICATION nun $15.5, 1902.

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PATENTED JUNE 16, 1903.

J.A.PORSYTH.

GARBAGE GREMATORY. APPLIOATIOH FILED AUG. 5. 1902.

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No. 731,032. PATENTED JUNE 16, 1903. J. A. FORSYTH.

GARBAGE CREMATORY. APP-LIOATION IILBD AUG. 6, 1902.

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PATENTED JUNE 16, 1903.

J. A; FORSYTH. GARBAGE CREMATORY. APPLIIOATIOR nun AUG. 5, 1902.

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No. 731,032; I I PATENTBD JUNE 16', 1903.

J. A. FORSYTH.

GARBAGE GREMATORY.

APPLICATION FILED we. 5, 1902.

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Patented June 16, 1903.

JAMES ARCHI FORSYTH; or ATLANTA, GEORGIA.

GARBAGE-CREIVIATORY.

SPECIFICATION formingpart of Letters Patent No. 731,032, dated June 16, 1903.

Application filed August 5, 1902. Serial No. 118,529. No model.)

I all whom, it may concern:

' Be it known that I,JAMEs ARCHIE FoRsYTH, a citizen of the United States, residing at Atlanta, in the county of Fulton and State of Georgia, have invented a new and useful Garbage-Crematory, of which the following is a specification.

This invention relates to certain improvements in furnaces of that class employed for the destruction of garbage and like material.

The principal object of the invention is to provide a furnace of simple construction into which the garbage to be destroyed may be readily introduced and incinerated at a comparatively small cost and wherein all the noxious fumes and gases will be effectually consumed before the discharge of products of combustion from the escape-flue.

A further object of the invention is to provide an improved form of furnace in which the garbage is subjected to intense heat and wholly or partially dried and then consumed without the necessity of removing the same or changing its position in the furnace.

A still further object of the invention is to provide means whereby the escape of the products of combustion or gases from the garbage will be prevented during the intro duction of fresh supplies of garbage to the furnace.

A still further object of the invention is to provide an improved garbage-feeding device arranged especially with a view of separating the liquid material from the mass of garbage prior to its introduction into-the furnace.

A still further object of the invention is to provide the feed-chute with a water-jacket at a point where the garbage is fed to the furrace and to maintain a constant circulation of water in the jacket.

A still further object of the invention is to provide a by-pass or flue for the escape of a portion or all of the products of combustion in the event of the furnace being choked by garbage without wasting the heat.

With these and other objects in view the invention consists in the novel construction and arrangement of parts hereinafter described, illustrated in the accompanying drawings, and particularly pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a longitudinal sectional elevation of a garbage-incinerating furnace constructed in accordance with my invention. Fig. 2 is a view,

partly in plan andpartly in sectional plan, of the furnace. Fig. 3 is a front elevation, partly in section, on the line 3 3 of Fig. 1. Fig. A is a detail sectional view on the line A A of Fig. 3. Fig. 5 is a transverse sectional elevation of the furnace on the line 5 5 of i a wall 12, said wall serving as a partial support for a pair of tubular boilers 13, which may be of any ordinary construction. In the front chamber are three fire-boxes 14, each having an arched top and provided with separate grates 16. In the front wall of the chamber 10 are three fire-doors 17 and ashpit doors 18, the latter communicating with ash-pits arranged below the grates and provided with inclined bottoms 19 in order to permit the material falling through the grates to feed by gravity. At a point slightly above the inclined part of the ash-pit is a screen 20 of sufficient mesh to permit the passage of cinders and the like, while retaining larger articles, such as cans, which may be fed to the furnace with the garbage and allowed.

to pass through the grates when the latter are dumped or rocked for cleaning purposes. The screen may be removed from position from time to time in order to allow the accumulated material to be discharged from the ash-pit door. The arched tops 15 of the combustion-furnaces serve to receive the garbage from an upper feeding device, and in practice the garbage is spread evenly over the arched tops by means of suitable tools, which can be inserted through openings 21 in the front of the furnace. In'each of the tops is an opening 22, through which the dried or partlyconsumed garbage may be fed directly to the combustion-chamber at intervals, although during the drying and burnin g of the garbage the latter is preferably so'arranged across the openings as to completely close the same and prevent the escape of the products of combustion except through the open rear end of the chamber. escape-flue for the products of combustion when a fire is started, and it may also be utilized as an escape-flue should the furnace become choked by the falling of the garbage to the inclined rear wall 23 of the combustionchamber in sufficient quantity to choke the outlet end of the combustion-chamber.

During the operation of the furnace coal or similar combustible material may be fed to the combustion-chambers in the event of there being insufficient fuel from the dried and heated garbage, and the products of com- .boiler-fiues to the rear chamber 11, and at this point is a grate 26, extending completely across the chamber 11 from side to side of the furnace, said grate being fed'with coke or pounds.

other suitable fuel through one or more doors 27, and the flames from this fuel mingle with the products of combustion escaping from the boiler-flues, consuming the noxious fumes and gases and destroying carbon and carbon com- The products of combustion after mingling pass over a bridge-wall-28, and

thence down to an outlet-flue 29, leading to a chimney 30, which is preferably of the construction shown in Fig. 7.

The chimney 30 is adapted to receive the products of combustion from a plurality of furnaces, and in the present case two fiues 31 are shown leading to the lower portion of the chimney, a division-plate 32 being employed at the center of the chimney in order to prevent cross-drafts. To provide for the free escape of the products of combustion, the lower portion of the chimney is first contracted to form a comparatively narrow throat 33, and thence gradually flared out to the full diameter of the interior of the chimney to permit the expansion of the gases and their free escape to the outer air.

In some cases the preliminary fires in the combustion-chambers 14 may become choked from garbage falling on the inclined wall 23 and closing the ends of said chambers, and in such cases provision is made for the escape of the products of combustion by forming one or more escape-fines 35 in the front wall of the furnace at points between the combustionchambers and the upper portion of the chamber 10, the arrangement being such that the escaping products of combustion must first pass through the boiler-fines in order that the heat may be utilized before the gases pass to the chimney. These auxiliary fiues are provided with cleaning-openings extending to the top and front walls of the furnace and provided with covers 337 and 38, respectively.

The 0 enin s 22 further afford an- The feeding device is of the construction best shown in Fig. 6 and is so arranged as to provide for the straining of the fluid portions of the garbage, the liquid being caught in a separate receptacle and retained, while the saturated mass of garbage is mingled with the dry garbage and fed to the furnace.

The dry garbage or other refuse is dumped into a receptacle 40, which communicates by a pipe 41 With a discharge-opening 4:2, arranged at the top of 'the furnace at a point above the combustion-chambers. With this opening also communicates a pipe '43, leading from a cylindrical tank 44 and provided with a valve 45 at a point above the discharge end of the tube 41. The cylindrical tank 43 is provided with a vertical partition 46 and a horizontal partition 47, forming an auxiliary liquid-tank, from which the liquid may be drain ed at intervals through a tap 48. Pivoted to the upper end of the vertical partition 46 is a semicylindrical strainer 50, provided with a projecting flange or ing 51, which may rest on an arm 52, projecting inwardly'from one wall of the liquid-tank and serving to support the screen in the position shown in Fig. (5 while the garbage or other material to be strained is being poured therein, the liquid falling to the lower portion of the liquid-containin g tank,while the screen retains the solid matter. When the screen becomes filled with the solid material, it is turned on its hinged or 'pivotal connection to the position shown in dotted lines in Fig. 6, and the solid material falls into the tank 44, from whence it may be fed to the furnace.

To prevent burning out the lower portions of the feeding device, the opening with which the feed-tube 43 communicates is provided with a water-jacket 54, formed of two concentric cylindrical casings 54. and 55, connected at their lower ends hyatrough-shaped ring 56, and at their upper ends by aflat ring 57, to which the lower portion of the feeding devices is bolted; In front of the boilers, at a point just below a depending bridge or bafile 58, are a number of transversely-disposed water-tubes 59 in co1nmunication with a water-supply pipe 60, and leading from the discharge end of the tubes is a pipe 6l,communicating with the water-jacket, the water being heated in the tubes and forced into the water-jacket, from whence it escapes through a pipe (52 to any suitable point. This permits of a constant circulation of water through the jacket, and as the water is heated it will to some extent serve to dry the garbage in advance of its delivery to the furnace. Between intervals of feeding the feed-opening.is closed by a stopper 64 in the form of a dished plate, which may be readily removed from the feed-opening through an opening formed in the feed-tube and closed by a vertical movable slide (35.

In operation the dry garbage or refuse from the. receptacle 40 and the moist material from the tank 44 are fed down through the opening and fall on top of the arched combustion-chambers 15 care being taken to spread the garbage in such manner as to close the opening 22. The products of combustion from the three combustion-chambers strike against the inclined rear wall 23, and thence against the lower portion of the shells of the boilers, and are deflected into contact with the garbage, the latter being gradually consumed as it is dried by the direct radiation of heat from the combustion-chamber and by contact with the products of combustion. The steam and vapor from the garbage are mingled with the products flue, the consumption being completed when the gases mingle with the products of combustion arising from the fuel on the gratebars 26. The dried residue which may remain on top of the combustion-chambers is then forced down through the openings 22 directly onto the mass of fuel in the combustion-chambers and serves to assist in the destruction of a fresh supply of garbage which may be fed to the furnace.

During feeding operation a damper 7 O in the main wall 12 is opened in order to place the chamber 10 in direct communication with the escape-flue 29, leading to the chimney, the gases passing directly to the chimney and their escape through the feed-opening and garbage-receptacle being prevented.

With some classes of garbage which may contain a sufficient quantity of combustible material or with which refuse combustible material, such as paper and the like, may be mixed it will not be necessary to supply anxiliary fuel to the combustion-chambers except at the starting of the operation; but it is found advisable to employ fuel on the grate-bars 26 in order to effectually destroy the noxious fumes and gases arising from the garbage.

IVhile the construction herein described and illustrated in the accompanying drawings is the preferred form of the device, it is obvious that various changes proportions, size, and minor details of the structure may be made without departing from the spirit or sacrificing any of the advantages of the invention.

Having thus described my invention, what I claim is 1. In a device of the class specified, a furnace, a combustion-chamber disposed therein and having an arched top for the reception of the garbage to be destroyed, the rear end of the combustion-chamber being open to permit the free escape of the products of combustion, and means for deflecting the products of combustion into contact with the mass of garbage resting on top of the combustionchambers.

2. In a device of the class specified, a furnace, a combustion-chamber disposed within the furnace and having a top portion for the reception and support of the garbage to be destroyed, the rear end of the chamber being of combustion and partly consumed during the passage through the boilerin the form, V

open to permit the free escape'of the products of combustion, and a steam-boiler extending partly over the top of the combustion-chamber and serving to deflect the prodnets of combustion into contact with the garbage.

3. In a device of the'class specified, a furnace, a combustion-chamber disposed within the furnace and comprising an arched top and a lower grate, an inclined lower wall disposed to the rear of the combustion-chamber, and a steam-boiler having one end extending over the inclined w ll and a portion of the top of the combustionchamber and serving to deflect the products of combustion into contact with the garbage to be destroyed, substantially as specified.

i. In a device of the class specified, the combination of the furnace, a combustionchamber disposed within the furnace and having an arched top for the reception of the garbage to be destroyed, a fuel-grate forming the lower portion of the combustion-chamber, an ash-pit disposed below the grate-bars and having an inclined bottom for feeding the ashes and similar material in the direction of the ash-pit door, and a removeble inclined screen arranged above the bottom portion and serving to temporarily retain the larger particles of material, substantially as specified.

5. In a device of the class specified, a furnace having an escape-flue, a combustionchamber having a top for the reception of the garbage to be destroyed, a steam-boiler disposed between the combustion-chamber and the escape-flue and acting as a deflector to direct the products of combustion into contact with the garbage, and an auxiliary flue having an adjustable damper or valve which may be opened to permit the direct passage of the products of combustion to the escapefiue.

6. In a device of the class specified, a furnace, a combustion-chamber therein and provided with a top for the reception of the garbage to be destroyed, an escape-flue, a steamboiler provided with flues for the passage of the products of combustion and arranged between the combustion chamber and the escape-fine, the lower shell of the boiler acting as a deflector to direct the products of com bustion into contact with the garbage, and an auxiliary flue forming a by-pass between the combustionchamber and the entrance end of the boiler-flue in the event of the choking of the main escape from the combustionchamber by an accumulation of garbage.

7. In a device ofthe class specified, a furnace divided into two main sections each provided with combustion-chambers, means in the first of said chambers for the reception and support of the garbage to be consumed, a steam-boiler having portions disposed within both chambers and provided with fiues whereby the products of combustion from the first chamber may pass to the second chamber and there mingle with the products of combustion in the second chamber, said boiler having portions of its shell exposed to the direct action of the products of combustion in both chambers and in the first of said chambers acting as a deflector to direct the products of combustion into contact with the garbage, and an escape-flue in communication with said second chamber.

8. In a device of the class specified, a furnace divided into two main chambers, a steamboiler arranged partly Within both chambers and having fines for the passage of the products of combustion from the first chamber to the second chamber, a combustion-chamber arranged Within the first of the main chambers and having an arched top for the reception of the garbage to be consumed, an auxiliary fire-supporting grate in the second chamber, said grate being extended partly under one end of the boiler and the products of combustion therefrom being mingled With the products of combustion from the first chamber after passing through the boilerfiues, and an escape-flue'leading from said second chamber, substantially as specified.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in the presence of tWo Witnesses.

JAMES ARCHIE FORSYTH. \Vitnesses j W. F. MANRY,

E. H. THORNTON.

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