US911375A - Garbage-burner. - Google Patents

Description

J. A. BUBWELL.

GARBAGE BUB-NEE.

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91 1,375. Patented Feb. 2, 1909.

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John dBw-well.

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J. A. BURWELL.

GARBAGE BURNER.

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Patented Feb. 2, 1909.

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J. A. BURWELL.

GARBAGE BUB-HEB.

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Patented Feb. 2, 1909.

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amut UNITED STATES PATENT OFFICE.

JOHN A. HURWELL, OF SAN ANTONIO, TEXAB GABBAGE-BUBNEB.

Specification of Letters Patent.

Patented Feb. 2, 1909.

Application filed September 17, 1908. Serial No. 463,449.

To all whom it may concern:

Be it known that I, Juan A. BU-tWELL, of San Antonio, in the county of Bexar and State of Texas, have invented certain new and useful Improvements in Garba e-Burners; and I hereby declare that the ollowin" is a full, clear, and exact description thereof? reference being had to the accompanying drawings, which form part of this specification.

This invention is a novel furnace 'for incinerating garbage and refuse and its object is to rovide a furnace having a revolving ratc in which the material to be burned can be consumed and to so construct the ap )itratus that the waste material can be rea ily put into the rate while being burned, and the grate can e continually revolved so that the waste will be continually agitated and the ashes be sifted therefrom, the grate be? ing preferably heated by means of oil or gas burners pro ucing jets of lame which are directed against the sides of the revolving grate.

The invention consists in the novel construction and combinations of arts hereinafter more fully described, an set forth in the claims; an the accompanying drawings illustrate a practical form of the nvention. and I will now describe the same in detail with reference thereto.

said dilawings: Figure 1 is a front ele-v when of t e apparatus partly in section, and also showin in dotted, se -a telescopic section of he smpke stack; raised; and the receiv and charg ng hop er in position over the gra Fi is a can ral longitudh nal section throug the apparatus showing the smoke stack elevated and the charging hopper in position over the grate, and also showin in dotted lines the removable sections o the grate drawn out. Fig. 3 is a plan view of the apparatus partly broken away and also show in dotted lines the receiving hopper in position over the grate. F1 4 is a detalLview of the revolvintfgrate en arged. Figs, 5 and 0 are enlarge etail sectional views of the grate. Fig. 7 is an enlarged sect on on has 7-7, Fig. 4.

The revolving grate or container 1 is c lindaqmfnream efn vel oaa ctioa. t comprises ea. p ates 1 1", whw. are conp e g to. central shaft! whiq extends in! 1, 1', of said end plates, w 0 letter in beari 2 wm m m e of suitable wnstruc m.- and preferably of metal and embedded in the end walls 3 of the furnace easing, which is 1 preferably made of brick and may be lined interiorly with fire brick and made of sul|icicnt thickness to prevent loss of heat by external radiation. if desired the hearings may be provided with rollers, as indicated at .3, in the drawings, to reduce friction.

The end plates 1, I, are provided near their peripheries with annular series of slots I in which are secured the ends of grate bars 4 which are preferably ribbed as indicated at 4' on their outer faces and also provided with longitudinal ribs 4 on their inncr faces; and when all these "rate bars are in position and connected to the end plates 1, 1", they form therewith a hollow c lindrlcal rate adapted to contain the gar age urned.

to be In der t fa il e plac ng aarbe n t e grate. a certain. numb r f h g e era made removable or adjustable. As shown the end plates 1', 1 are provided with removable sections l to each of which sections the ends of five grate bars are attached, see Fig. 4. These five grate bars are cut in two and are fastened together at their inner ends by means of tie-.rods and separators 1"- by hich the r inne nd re r gidly nited.- The u e m st ba s of th se 9- tioas ar pr d d with side flanges hi fi g KI a rtiens i he adj en rate bare an there y up r t e evahle ass me a they re s i an ou the g ate. s s opp d i h the tioas pp mie t th y co e directly nd an orga s 3. inth tqp' allet he m e; t e w e in position the plates 1'" with the connects sectional grate bars, can be drawn outward through openings 3 in the walls of the furnace, as shown in Fi 2, said 0 enings being closable by suita le doors. hen the grate sections are drawn out as indicated in dotted lines in Fi 2 any refuse charged through openin 3 wi fall directly into the rate. After t e grate is filled the removab e grate sections are slid inward and secured by means of plates 1' reinovably attached to the end plates 1, 1", by means of bo s as ndica e: in the drawin s Th "spe ms: 3 perm-1 y closed. by 0 met .e Qe which senses wi a stack wet on 8 which t les op s .to a saperpflaed stack section 3' suite ly supported abo e the furn ce, as mdi et eg n the ra mse The ho d 8 can be re. an e ti n 3 telescoped into stack 3' as indicated in i a sufiicient supply of oxygen to the combus Figs. 1 and 2 of the drawings, when it is de- Y sired to charge the grate.

To facilitate charging the grate a crane 5 is provided at one side of the stack and carries a hopper 5 which corresponds in size to the opening 3 and when the hood 3 is raised this hopper 5 can be moved in under the hood or over the opening 3 as shown in Fig. 2 and indicated in dotted lines in Figs. 1 and 3, so as to deliver material previously placed in the hopper directly into the cylindrical grate. After the grate is charged the ho )per can be swung back out of the way as imicated in full lines in Figs. land 3 the hood 3 is then lowered and after the movable rate bars have been replaced in position t to furnace is ready for operation.

The 'rate is rotated during the burning of the gai'hage by suitable means. As shown a sprocket l" is placed on the hub 1' outside the furnace, and can be driven by a sprocket chain 6 from a small sprocket 6' on a shaft 6', which has a gear 0' meshing with a pinion 6 on a shaft 6 carrying a gear ti" meshing with a pinion 6" on an engine or motor shaft 6; the gearing being so iroportioned as to properly reduce the s eed etween the engine sha t and the cylin or. In practice I propose to rotate the cylindrical grate about one or two revolutions er minute.

In each side of t e grate are arranged a series of oil or gas burning jet heads 7 which communicate with supply pi es 7 connected to any suitable reservoir or uel supply, and which may also be supplied with steam from the boiler by a pipe 7' the burner being provided with suitable valves and devices to insure proper regulation of the several jets.

It wil be observed that the jets are directed against the exterior of the revolving grate and will of course heat the furnace chamber and the entire grate, and as the latter revolves the jets of flame will directly contact with the garbage in the grate through the interstices between the rate bars and quickly reduce the contents 0 the grate to cinders or ashes. As the grate is constantly revolved its contents are continually stirred and agitated by reason of the ribs 4 which tend to pick up and car the matters around in the grate. This stirrin of the garbage facilitates the evaporation o the moisture therein which is discharged through the uptake and insures the rapid incineratlon of the refuse. As all the matter is confined in the grate, light refuse cannot beblown out of the chimney but will be retamed in the grate until incinerated, while the ashes will sift out of the grate into the ash car 8, which is preferabl wheeled and can be introduced into the mace, under the grate through an opening 3 in the front wall closable b a suitable door 3" which may be provide with air valves 3', to insure tion chamber. l he sliding sections of the grate can be easily operated, and there is nothing about them to get out of place during the rotation of the grate; and as the opening in the grate when such sections are drawn out IS very large, a large quantity of garbage can be quickly emptied into the grate at each operation, and animal bodies can be placed therein and incinerated if desired.

lhe furnace does not have to he stopped in order to remove the ashes, and one ash car can be withdrawn and another one run into place without stopping the fire.

By using a telescopic smoke stuck or removable hood 3 1 am able to utilize the outlet opening of the furnace for the chargin opening of the grate and at the most. a( vantagcous position for charging the grate. Durin the churgin r operationstho burners shoultlbe cut off. lho furnace can be built )racticully air-tight as no fuel inlet openings have to be made therein and the com )ustion chamber is practically wholly inclosed within thick fire-brick walls, so that no odors can escape except through the smoke stack, which can be made sufficiently high to carry the odors out of the we If desired a small stream of water can be directed on each of the journal bearings of the grate so as to kee them cool.

'1 ie ate-bars are preferably secured to the on plates 1, l and the plates 1', by having said plates rovided with T-slots 1' to which the ends 0 the grate bars are fitted as indicated in Figs. 6 and 7; and the said bars are provided adjacent their ends with lateral flanges 4' which are provided with notches 4 which are engaged by bolts 4 passing through perforations 1 in the plates.

he flanges 4' of adjacent bars come so near together that one bolt 4" assists in securing two grate bars in position.

Having described my invention what I claim as new and desire to secure by Letters Patent is:

1. In a refuse burning up aratus the combination of a furnace chem er, a cylindrical grate therein comprising circular end plates rotatably mounted in the furnace walls, and having removable sections, grate bars connected to said end plates, and sectional grate bars connected to said removable sections, substantially as described.

2. In a refuse burning up aratus the combination of a furnace chain or, a cylindrical grate therein comprising circular end plates rotatably mounted in the furnace walls, ribbed ate bars connected to said end plates; said end plates having removable sections, a set 0 sectional grate bars connected to said removable sections, the outermost sectional grate bars havin ribs engaging grooves in the adjacent ribbed grate bars, substantially as described.

3. In a garbage burning plant the combination of a furnace, grate therein corn rising circular end ilates rotatably mounte in the furnace wall having removable sections, grate bars connecting said end plates, and sectional grate bars connected to said removable sections and forming the door of the grate; with means for heating the furnace, means for s and furnace having a slidable 1 ed to be opened when the grate is stopped a rotatable cylindrical l t l l charging the grate, and means for rotating the grate.

l. in a garbage burning apparatus the. combination of a liiriiaee having an opening in its roof, a stack above the opening, an adjustable hood covering said opening and telescoping with the stack, a rotatable cvliiidrical grate in the furnace adapted to be charged through said opening when the hood is raised, and a hopper for charging the grate go tliroii 11 said opening.

5. garbage burning apparatus coiiiprising a furnace having an opening in its roof a stack above the opening, a removable hood over said opening communicating with the stack, a rotatable cylindrical grate in the side section adapttwo witnesses.

JOHN A. BUltWELL Witnesses B. l). I). Gnnsn, lton'r. P. Wnioii'r

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