US1190458A - Destructor-furnace. - Google Patents

Description

J. PRHVIROSE.

DESTRUCTOR FURNACE.

APPLlcATloN man SEPT. 4. 1914.

Patented July l11, 1916.

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l. PRIMROSE.

DESTRUCTOR FURNACE.

APPL|cAT1oN-r|LED SEPT. 4, 1914.

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DESTHUCTOR FURNACE.

APPLICATION FILED SEPT. 4, 19

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JOHN PRUVROSE, 0F NEW YORK, N. Y., ASSG-NOR T0 THE DESTRUCTOR COMPANY, A

CORPORATIN OF NEW YORK.

DESTRUCTR-FURNACE.

Application filed September 4, 1914.

To ZZ 'whom t may concern.'

Be it known that l, tloi-nv Pnnvinosn, a subject of the King of Great Britain, residing at N ew York, in the county and State of New York, have invented certain new and useful improvements in Destructor-Furnaces, of which the following is a full, clear, and exact description.

rThe invention which constitutes the subject matter of this application relates to a destructor furnace and particularly to the grate thereof which renders the furnace more economical in operation and more easily manipulated.

One of the more important features of this grate from the standpoint of upkeep is its great iiexibility which relieves it from practically all strain which would eventually result in distortion and cracls. I accomplish this feature, as will be clearly apparent from the detailed description below, by leaving the grate to hang free from its top and by it being perfectly free to adjust itself in any direction according to temperature conditions.

Another important feature of this invention consists in dividing the chamber below the grate into interconimunicating compartments, one of these compartments constituting the ash-pit and the other compartment constituting an air chamber, so that the air may be forced from said air chamber into the ash-pit and fire in such a manner that it serves to cool the sides of the grate and also is supplied to the fire for supporting combustion upon the grate. rihis division of the chamber into intercommunicating compartments is accomplished preferably by means of a partition extending upwardly from the bottom of said chamber in proximity to the lateral supporting flange of the grate.

in destructor furnaces of the type shown in the accompanying drawings, it is essential that some convenient form of means be employed forremoving the clinler and another important feature of my invention has to do with novel mechanism of this character; and, as will more clearly appear from the detail description below, this clinker removing means is so related to the rigid grate that the air which is forced through the latter to support combustion, coming as it' does Specification of Letters Patent.

ratentea amy ii, raie.

Serial No. 860,153.

into intimate contact with said means, serves to prevent overheating of the same from the high temperature normally existing within the grate.

Other important features of my invention will appear from the detailed description herewith taken in connection with the accompanying drawing, in which- Figure 1 is a central longitudinal section of my invention. Fig. 2 is a front view of the furnace and grate with the front of said furnace removed. Fig. 3 is a section on line 3-3 of Fig. 1. Fig. Llis a horizontal section with parts broken away. Fig. 5 illustrates an enlarged view of a detail. Fig. 6 is an enlarged view of the partitioning wall and associated feature.

Referring to the drawings in detail, the walls of the furnace are preferably divided vertically into three parts, namely the upper portion 10, the lower part 11 composed of steel structure, and the intermediate framework or portion 12 which is preferably utilized for supporting the trough grate of the furnace. The lower part or steel structure acts as a partition to separate the chamber underneath the adjoining grate or grates. The trough grate is made of side plates composed of a plurality of transverse sections 13 suitably secured to each other and provided with outwardly projecting lateral flanges let at their upper ends for suspending the plates from the framework 12 and also provided with inwardly projecting lateral flanges 15 at their lower ends. The grate also has a perforated bottom likewise composed -of a plurality of transverse sections 16 preferably contacting with each other and slidably mounted upon the vlateral flanges 15 of the side plates. As a matter of convenience the bottom sections, preferably correspond in length to the length of the sections of the side plates. The forward sections of the side plates are firmly bolted or otherwise secured to the steel work of the front wall of the furnace while the grate at the rear is provided with a section 17 which is secured to the side plates and is movably supported by the framework 12 of the rear wall of the furnace. rlhe lateral flanges 14. of the side plates preferably rest freely upon an asbestos support 18. From the above description it will be at once apparent that knet result it is relieved of all strains which tend to distort or crack the same.

In view of the excessive heat in the normal operation of these furnaces, and in view of the weight of the material supported by the grate there is a tendency for the side plates of the grate to sag or assume a vertical position. In order to overcome this, I provide rigid means which engages with the outer lower edge or ribs of the side plates. The means in this particular case is preferably the steel structure or walls 19, but it will be understood that I do notv limit myself to such a construction. This wall 19 together with its extension or jacket 20 serve as a partition to divide the chamber below the grate into inter-communicating compartf ments 21 and 22. The partition extends upwardly from the bottom of the chamber into proximity to the outwardly projecting lateral'ianges 14 of said grate and the interior compartment 21 constitutes the ash-pit of the furnace and the exterior compartment 22 constitutes an air chamber. The jacket in conjunction with the ribs 23 of the grate against the outer edges of which the jacket preferably contacts, defines air passages 24 from the upper to the lower edges of the Vside plates. Y

At 25 is indicated an air supply valve for Flooding the air-chamber with air whereby the said air is forced over the upper edge of 'the partition and downward through the air passages 24 into the ash-pit and the lire t0 cool the sides of the grate Vand for the purpose of supporting combustion on the grate.

It will be clear from the drawings and the v description relating thereto that the ash-pit 21 is preferably located directly underneath that part of the grate which is perforated and that the air-chamberr22 preferably eX- tends the entire length of both sides of the ash-pit and across the rear behind said pit, the rear end. of the ash-pit being separated vfrom the rearportion of this air chamber by means of the downwardly andY inwardly inclined wall 26 and its extension 27. As previously stated, in this exterior chamber is located an air supply valve 25, and this valve isoperated at will by means of a suitable f lever 28 at the front and suitable mechanism Ycast thereto at suitable intervals and are in such form as to support an angle iron 31 and leave a space between' the latter and said ridges for circulation of air, thereby keeping angle iron from burning. A steel plate 32 is secured to the rear end and a perforation 38 is provided at the forward end of the angle iron so that when the furnace is in condition to be clinkered the angle iron is pulled forwardly out of the furnace by any suitable power mechanism engaging in said perforation and by virtue of the steel plate at the rear the clinker is withdrawn also.

From the above description it will be seen that I have produced a grate of very simple construction, one that is very easy to manufacture, easy of manipulation and also very easy of installation. It is to be under stood, however, that I do not propose to limit myself to the exact construction described and shown as this merely constitutes the preferred embodiment of my invention, and it will be obvious to those skilled in the art that minor changes may be made in points of detail and other embodiments resorted to without necessarily departing from the true spirit and scope of my invention.

What I claim is:

1. In a destructor furnace, a trough grate comprising side plates composed of a plurality of transverse sections secured to each other and freely suspended from their tops and a bottom composed of a plurality of -transverse sections and supported upon the side plates, said furnace provided with means at the front thereof to which the front sections of the grate are secured, and with means at the rear to which the rear end of said grate is slidably suspended to permit of a free longitudinal movement of the latter.

2. A destructor furnace in combination with a grate freely suspended from the walls therein to adjust itself in any direction according to temperature conditions, said grate comprising side plates suspended at their upper ends from the side walls of the furnace, means at the bottom of said plates for holding them in position and a suhstair tially flat bottom supported upon said side plates, said grate being secured at its front to the front walls of the furnace and the rear end being slidably supported by the rear wall of the furnace.

3. A destructor or other furnace having a grate the front end of which is securedvto the front wall of the furnace, the sides of which are freely suspended from the side walls of the furnace, and the rear end of which is slidably connected with the rear wall of the furnace, whereby said grate is free to adjust itself in any direction according to temperature conditions.

4. A destructor furnace, comprising a framework in the side and rear walls therein combination with a perforated trough grate freely suspended from said framework and provided with an upwardly projecting continuous perforated ridge eX- tending along the bottom thereof, an an angle iron slidably mounted upon said ridge provided with means thereon for removing the clinker from the furnace, said ridge provided with projections thereon to space the angle iron from the ridge whereby air is supplied above the grate through perforations in the top of the ridge.

5. In a refuse destructor' or other furnace a perforated trough grate freelysuspended from the side and rear walls of the furnace to permit free expansion in all directions, said grate provided with a central ridge projecting` upwardly therefrom, and means associated with said ridge for removing upon being reciprocated the clinlrer from said furnace, said means comprising an angle iron slidably mounted upon said ridge and a clinlrer engaging means secured to the rear end of said angle iron.

6. In a refuse destructor or other furnace,

a trough grate provided with a central perfoi-ated ridge provided with upwardly projeeting lugs cast thereto, in combination with a clinlier removing means supported upon but spaced from said ,ridge by said lugs whereby the passage of air through the perforations to cool the clinlrering means and for supporting combustion in said furnace is permitted.

7. In a refuse destructor or other furnace, in combination, a trough grate comprising side plates freely suspended from the walls of said furnace and a perforated bottom supported by said plates, said trough grate and the walls of said furnace dening a longitudinal chamber below said grate, and means for partitioning said chamber into inter-communicating compartments, one of i said compartments being below said grate and serving as an ash-pit and the other of said compartments serving as a chamber through which air is flooded to the grate, said partition means, in conjunction with said suspending means, adapted to maintain the side plates of said grate in proper position. 4

8.. In a refuse destructor or other furnace comprising in combination a. trough grate having a perforated bottom and being freely suspended from the walls of the furnace, said trough grate and the walls of said furnace defining a longitudinal chamber below said grate, and means for partitioning said chamber into inter-communicating compartments, one of said compartments being located substantially below the said grate and constituting the ash-pit of the furnace, and the other compartment surrounding the sides and rear of said ash-pit and constituting an air chamber through which air is flooded to the grate.

9. In a destructor furnace, a trough grate comprising side plates composed of a plurality of transverse sections secured to each other and freely suspended from their tops,

a substantially flat bottom composed of a plurality of transverse sections contacting with each other and slidably supported upon said side plates, and a section for closing the rear secured to each of said side plates and slidably supported in the rear wall of the furnace to permit free longitudinal movement of the grate.

10. In a destructor furnace, a trough grate comprising side plates adapted to be freely suspended at their tops from the side walls of the furnace, a substantially flat bottom slidably supported upon said side plates, and a section for said grate for closing the rear end thereof, said section secured to each of said side plates and adapted to be slidably supported in the rear wall of the furnace.

11. In a destructor furnace, a trough grate comprising inwardly inclined side plates adapted to be freely suspended at their tops from the side walls of the furnace and provided with laterally and inwardly projecting flanges at the lower edges thereof, a substantially flat bottom slidably supported upon the lateral flanges of said side plates, and a section for said Vgrate for closing the rear end thereof, said section secured to each of said side plates and adapted to be slidably supported in the rear wall of the furnace.

12. In a destructor or other furnace, a trough grate comprising inclined side plates provided with flanges at their tops from which said plates are adapted to be freely suspended from the side walls of the fur-` nace and also provided with laterally and inwardly projecting flanges at the lower edges thereof, a substantially llat bottom slidably supported upon the lateral flanges of said side plates, and a section of said grate for closing the rear thereof, said section secured to each of said side plates and -provided with a flange at the upper edge thereof adapted to be slidably connected with the rear wall of the furnace, whereby free longitudinal movement of the grate is permitted.

13. In a destructor or other furnace, a trough grate secured to the front wall of the furnace and side plates adapted to be freely suspended at their tops from the side walls of the furnace, a substantially flat-bottom slidably supported on the side plates, and means engaging with the lower end of said side plates to prevent the latter from sagging or assuming a vertical position.

14. In a destructor or other furnace, a trough grate rigidly secured at its forward edge to the front wall of the furnace and slidably suspended at its sides and rear to the side and rear walls respectively of the furnace, said grate comprising side plates and a bottom slidably supported upon said side plates, in combination with a substantially rigid means for engaging with the vvis lower edge of said side plates to prevent the latter from sagging or assuming a Vertical position.

l5. -In a destructor or other furnace, a trough grate composed of a plurality of sections, the forward section of said grate being rigidly secured to the front wall of the furnace, the rear sections of said grate Vbeing freely suspended from the rear wall of the furnace, and the portion intermediate of said front and rear sections being freely suspended from the side walls of the furfurnace, and the rearmost section of said side plates and said bottom being secured to the rear section of the grate. y Y

17. In a destructor or other furnace, coniprising in combination, a trough grate the front end of which is closed by and secured to the front walls of the furnace, said grate provided with a lateral flange at its upper edge extending around the sides and rear thereof, and freely suspended from the side and rear walls of said furnace, the walls of in the presence of two subscribing witnesses.

JOHN PRIMROSE. Witnesses:

WM. BOHLEBER, WILLIAM P. JoHNsoN.

vCopies of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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