US2938476A - Rubbish barrel incinerator - Google Patents

Description

May 31, 1960 A. SALMON RUBBISH BARREL INCINERATOR 4 Sheets-Sheet 1 Filed March 21, 1958 xii v nhi IHH llllllH 1 INVENTOR.

LQLHS A. SALMON ATTOQNEVS May 31, 1960 Filed March 21 1958 L. A. SALMON 2,938,476-

RUBBISH BARREL INCINERATOR 4 Sheets-Sheet 2 INVENTOR.

LOUIS A SALMON ATTQRNEYS y 1, 1960 L. A. SAL ON 2,938,476

RUBBISH BARREL INCINERATOR Filed March 21. 1958 4 Sheets-Sheet 3 INVENTOR.

LOUlS A. SALMON A-r-rqz NEY s May 31, 1960 L. A. SALMON 2,938,476

RUBBISH BARREL. INCINERATOR Filed March 21, 1958 4 Sheets-Sheet 4 INVENTOR.

LOUlS A. SALMON RUBBISH BARREL INCINERATOR Louis A.Salmn, 12 Pond St.,-Lynn,.Mass.

FiledMar. 21, 1958,Ser.'No. 722,900

.2 Claims, .(Cl. 110-18) Thisinvention relates to improvements in rubbish burners or incinerators and most:particularly to a rubbish or trash incinerator-adapted to provide asafe and eflicient means'for burning combustible-material along with partly mom-combustible material, such as labelled tin cans, or

separately from the remainder of the incinerator so that -the residue may be readily removed within the container for convenient disposal after the waste material has been burned without requiring handling of the residue itself, whereby the bulk of rubbish to be disposed of is greatly reduced, whereby the .labor involved in disposing thereof is minimized, whereby -fire hazards from the storage of rubbish are greatly decreased, and whereby the waste material is reduced to a condition wherein it does not attract rodents, insects or animals.

A further object-of the invention is to provide an improved rubbish incinerator which involves inexpensive components, which is relatively compact in size, and which is provided with means to prevent scattering of sparks or other burning material, whereby the device may be employed with maximum safety.

,A still further object of the invention is to provide an improved trash or rubbish incinerator which is inconspicuous in appearance, which is durable in construction, and which is movable'so thatitmay be used in any desired location.

Further objects and advantages of the invention will become apparent from the following description and claims, and from the accompanying drawings, wherein:

Figure 1 is a perspective view, partly broken away, ,showing an improved rubbish burner constructed in accordance with the present invention.

Figure 2 is a perspective view of the removable top flue member of the burner of Figure 1.

Figure 3 is an .enlarged vertical cross sectional view taken substantially on the line 33 of Figure 1.

Figure 4 is a perspective view, similar to Figure 1, but showing a modified .form .of rubbish burner according to the present invention.

Figure 5 is a perspective view showing a further modifiedform of trash burner according to this invention.

Figure 6 is an enlarged vertical cross sectional view taken on the line 6-5 of Figure 4.

Figure 6a is an enlarged cross sectional view taken on the line 611-611 of Figure 6.

Figure 7 is a horizontal cross sectional view taken on the line 7-7 of Figure .6.

Figure 8 is a horizontal cross sectional view taken on the line 8-8 .of Figure 6.

Figure 9 is a perspective view showing a still further modified form of rubbish burner according to this invention.

Figure 10 is an enlarged vertical cross sectional view taken on the line Iii-10 of Figure 9.

2,938,476 Fatented May 31, 1960 Figure 11 is 'a horizontal crosssectional @view taken on therline 11,11 of Figure 10. I

Figure 12 is a top view ,ofxa modified form of -grate which may be employed on a rubbish burner according to this invention.

Figure 13 is a top view similar to Figure '12, but showing the inner rotatable member of the grate adjusted to a position to allow the removal of ashes from-the grate.

Figure 1-4 is an enlarged fragmentary vertical cross sectional viewtaken on the line -1414 of Figure 12.

Referring to the drawings, and more particularly -to Figures 1, 2 and 3, 11 generally designates one form of rubbish burner-according to this invention. The rubbish burner 11 comprises a bottom container 12 whichmay be of any suitable shape, for example, .cylindricahasillus- "trated, said bottom container being of suitable'refractor-y material,-such as refractory metal. The bottomcontainer 12 is provided with the upper and lower screened apertures 13 and 14 of substantial area, and is further ,provided with a pair of-diametrically located- handles 15, 15, said handles being secured to "the intermediate portion of the container to facilitate handling thereof.

The container .12 is provided with a bottom \wall 16, shown in Figure 6, and the lower screened opening 14 is located adjacent said bottom wall, whereby air is allowed to enter the container through the screened aperture 1.4

and to circulate upwardly therethrough.

The container 12 is provided at its top rim with a rolled bead 17.

Designated generally at 18 is a flue member which is removably mounted on the top rim member 17 .of container 12, the flue member 18 comprising an upwardly convergent, frusto conical wall 19 which merges with a cylindrical vertical discharge duct 20 coaxial with the frusto conical portion 19. The bottom rim of the frusto conical portion 19 has secured thereto an inner reinforcing band 21 and is rigidly secured to a flanged skirt member 22 whose depending cylindrical portion is receivable slidably in the top of the container 12 and whose horizontally extending flange portion, shown at 23, is engageable on the top peripheral bead member 17 of the container 12, whereby to support the flue member 18 thereon. 1

Alternatively, the reinforcing band secured to the bottom rim of the frusto-conical portion .19 may be dimensioned to engage externally around the head 17 and may be formed with an internally projecting vhorizontalflange adapted to engage on the top surface of the head to support the flue member on said bead. This enables the flue member to be used in conjunction with a grate member of the type disclosed in Figures 12, .13 and 14, presently to be described.

A pair of diametrically located handles 24, 24 are secured to the intermediate portion of the vfrusto conical member 19 of the flue 13, to facilitate handling of said flue.

Designated at 25 is a horizontal disc member which is secured by means of a plurality of depending fastening brackets 26 to the top portion of the discharge duct 20, whereby the disc 25 is spaced above the top rim of duct 20 and serves as a baflie member to prevent downdraft and to prevent the entry of rain or snow. Secured in the upper portion of the discharge duct 20* is a sparkarresting screen 27, said screen comprising a horizontal annular top portion 29, as is clearly shown in Figure 3.

In using the incinerator 11, the flue member '18 is first lifted off the container 12, allowing the rubbish or other material to be incinerated to be deposited in container 12. The material is then ignited, after which the flue member 18 is replaced on the top of the container 12, in the position illustrated in Figures 1 and 3, allowing the trash to burn. As above explained, air enters the container 12 through the bottom screened aperture 14, allowing the trash to oxidize, the gaseous products of combustion' passing upwardly and escaping from the burner through the flue 18. The screen 27 serves as arresting means to prevent sparks from being discharged from the burner,

Additional air enters the upper portion of the bottom container 12 through the upper screened aperture 13,

whereby the gaseous products of combustion may be completely oxidized.

Referring now to Figures 4 to 8, 11 designates a modified' form of burner according to the present invention, the burner 11' comprising a bottom container 12 similar 'to that employed in the previously described form of the invention, and including a removable top flue member 18' which is engageable on the top bead 17 of the bottom container 12 in the manner clearly illustrated in Figure 6.

Thus, the flue member 18 comprises a frusto conical main wall 19' which converges upwardly and is of substantial height, as is clearly shown in Figures 4 and 6. The frusto conical main wall 19' is provided with a hinged door 30, said door being hinged at its bottom edge to the bottom member of a restangular duct 31 secured to and communicating with the main frusto conical wall 19' of flue 18'. As shown in Figure 6, the rectangular duct 31 projects into the interior of the frusto conical wall 19",

and the door 30 is provided with inwardly extending vertical side walls 32 which are formed at their inner ends with lug portions 33 engageable with the edges of the top wall 34 of duct 31 when the door 30 is swung to its outermost position, thereby defining a chute for guidingvtrash and similar material into the lower portion of the member 18.

- As will be presently explained, combustion of the material takes place in the lower portion of the member 18', the upper portion thereof being provided with flue means to guide the gaseous products of combustion outwardly to the atmosphere.

Designated at 35 is an annular bottom ring member which is engaged in the top end of the frusto conical main wall 19' of member 18', and secured to the ring "member 35 is a relatively short frusto conical, upwardly intermediate portion 29.

The frusto conical main wall 19 of the member 18' is formed at its lower end with the short cylindrical rim portion 40, and secured to the interior of said rim portion is an annular flanged ring 41 on which is supported a. generally annular grate member 42, said grate member comprising a ring-like outer portion 43, a ring-like inner portion 44 and a plurality of downwardly and inwardly curved spoke elements 45 connecting the inner ring 44 to the outer ring 43 and defining a downwardly convergent passage-way. The ring-like outer member '43 is formed with a plurality of depending supporting lugs 45 which supportingly engage the horizontal flange of the member 41, as shownin Figure 6.

- Designated at 47 is an inner grate member which is rotatably interengaged with the inner ring member 44 of the main grate 42. Thus, the inner grate 47 comprises a circular ring element 48 which is formed with an external peripheral groove rotatably receiving the inner ring 44. The grate 47 is provided with a plurality of parallel, straight, spaced grate bars 49.

f ously described form of the invention, and comprising the annular top portion 28 and the downwardly convergent ceptacle.

Rigidly secured to the ring 48 is the outwardly extending straight handle bar 50 which passes through a slot 51 provided at the bottom portion of the member '18.

As shown in Figure 6 an annular bottom ring member 52 is rigidly secured in any suitable manner to the bottom rim of the cylindrical element 40, the ring '52 having the downwardly convergent shape shown in Figure 6, whereby it is engageable inside the top rim of the bottom receptacle 12. The annular member 52 is provided with the horizontal, outwardly projecting flange 53 which is engageable on the top bead of the bottom receptacle 12, whereby to support the member 18 on said bottom re- The annular member '52 is provided with the horizontal, outwardly projecting flange 53 which is engageable on the'top bead 17 of the bottom receptacle 12, whereby to support the member 18' on said bottom receptacle. the bottom edge of the element 40 and the flange 53 opposing the aforesaid notch. The handle '50 thus extends through the slot 51 andslidably rests on the flange 5'3. The handle 50 may be easily oscillated, whereby to rotate the inner grate member 47 relative to the main grate 42, and whereby to agitate material supported on the grates and to cause loosened material to fall through the grates into the bottom receptacle 12.

In using the incinerator 11, the trash is placed in the upper portion of the incinerator, namely, in the member 18 through the duct 34, access to the member 18' being provided by opening the door 30. The door 30 is provided with a suitable handle 54 and with suitable manually releasable latch means 55 of conventional construction. The trash or other material to be incinerated is thus placed inside the member 18' and ignited. Air

flows upwardly through the member 18', the air entering the bottom receptacle through the screened apertures 13 and 14, passing upwardly through the grates 42 and 47 into the chamber containing the burning material. The gaseous products of combustion pass upwardly through the top flue element 36 and discharge from the duct 37, the sparks being arrested by the screen 27. Ashes and similar material may be shaken into the lower receptacle 12 by oscillating the grate handle 50.

Any large, non-combustible objects, such as tin cans, or the like, will ultimately be left on the grate 42 and may be subsequently removed for disposal through the duct 31. Any large non-combustible objects, other than ordinary tin cans, which will not pass through grate 42, will likewise require removal for disposal through the duct 31.

The inner grade member 47 may be suitably pivoted to the inner ring member 44 for rotation on the axis of the handle bar 50 so as to serve as a flap for allowing relatively small non-combustible objects, such as ordiiigry tin cans, to be dropped into the bottom container As in the previously described form of the invention, the upper member 18' may be removed from the residue container 12, whereby the container 12 may be independently removed to empty its contents as in the case of an ordinary ash can.

In the embodiment illustrated in Figure 5, the incinerator 11' is disposed within a suitable frame constructed of angle iron or pipe or within a generally cylindrical enclosure or shell 56 of substantial height, the shell having a front opening 57 extending for its full height and of suflicient width to allow the burner 11 to conveniently be placed in the enclosure 56 and to be removed therefrom, whenever required. Respective chains 58, 58 are connected to diametrically opposite points on the top rim portion of the enclosure 56, said chains being provided with hooks 59, 59 engageable with handles 60, 60, provided on the member 19' of the incinerator 11', as shown, whereby the bottom container 12 may be separately re moved from the enclosure 56, leaving the upper member 18 suspended from the top rim of enclosure 56 The slot 51 is defined by a notch formed in within said enclosure. Thus, the bottom container 12 may be removed to empty its contents, by merely elevating the upper member 18' sufliciently to disengage same from the top bead 17 of the bottom container 12, whereby the bottom container may be slipped out of the enclosure 56 for emptying.

The emptied receptacle 12 may be easily replaced in the enclosure 56 beneath the upper member 18 by following a reverse procedure.

Referring now to the form of the invention shown in Figures 9 to 11, an installation suitable for permanent indoor use is illustrated. The incinerator is designated generally at 61 and comprises a rectangular bottom housing 62 adapted to receive a receptacle 12, and provided with an arcuate, horizontally mounted bracket 63 defining a seat for positioning the receptacle 12 at a proper location to receive ashes and other residue therein. The enclosure 62 is provided with a hinged door 64 having the suitably screened upper and lower air circulation apertures 65 and 66. A combined combustion chamber and flue 18, similar to that illustrated in Figures 4 to 8, is mounted on the top wall 67 of the enclosure 62, said top wall being provided with an annular mounting ring 68 having an upstanding inner flange 69. The cylindrical portion 40 of the member 18' is mounted on the ring 68, receiving the upstanding circular flange 69 and being secured thereto in any suitable manner. The top wall 67 of enclosure 62 is provided with a large circular aperture 70 over which the grate 42 extends, the rotatable inner grate 47 depending through the aperture 70 and the handle '50 extending through a horizontal slot 71 formed in the front Wall of the enclosure 62 over the hinged door 64, as is clearly shown in Figure 9.

The cylindrical exhaust duct 37 is permanently connected to a suitable flue conduit 72, leading to a chimney for the discharge of the gaseous products of combustion.

The trash or other material to be incinerated is placed in the combustion chamber 18' through its intake duct 31, and the solid products of combustion, namely, ash, or the like, is shaken down into the receptacle 12 by oscillating the handle 50, as above described in connection with the form of the invention illustrated in Figures 4 to 8. The aforesaid solid products of combustion are removed in the container 12 for disposal. The container 12 may be readily removed from the enclosure 62 by opening the door 64 and pulling the container out of the enclosure. Any large non-combustible objects such as tin cans, or the like, collecting on the grate 42 may be manually removed through the duct 31, as above described.

Figures 12, 13 and 14 illustrate a grate which may be employed on the incinerator container 12 illustrated in Figure 1. Thus, the grate assembly, shown generally at 74, may be mounted on the rim 17 of container 12. The member 74 comprises a generally cylindrical main shell 75 formed with diametrically opposed hook-like outwardly extending lugs 76, 76 engageable on the top bead 17 of the member 12, as shown in Figure 14. Rigidly secured in the bottom portion of the shell 75 is a horizontal partition disc 77 formed with diametrically opposed, relatively large, sector-shaped apertures 78, 78 and with additional smaller sector-shaped apertures, thereby defining a plurality of generally radially extending, sector-shaped vane members 79 disposed symmetrically on opposite sides of the apertures 78, 78. Designated at 80 is an inner basket member of generally cylindrical shape formed with diametrically opposed hooklike top lugs 81, 81 engageable on the head 73 to rotatably support said inner basket 80. The bottom of the basket member 80 is axially pivotally connected by a pivot bolt 83 to the center of the bottom wall 77 of the shell member 75. The bottom of the basket member 80 comprises a plurality of diametrically opposed groups of sector-shaped vane elements 84, spaced in the same manner as the vane elements 79 and being arranged so that they may at times be rotated to positions substantially overlying the respective sector-shaped openings 78, 78, as shown in Figure 12, whereby to define an apertured, adjustable grate in the top portion of the cylindrical container 12. In the arrangement illustrated in Figure 12, the grate partition supports the burning rubbish, whereas when the basket member is rotated to the position thereof shown in Figure 13, the relatively large apertures 78, 78 are substantially fully exposed, allowing the residue to be dropped through the grate.

While certain specific embodiments of an improved trash or rubbish burner have been disclosed in the foregoing description, it will be understood that various modifications within the spirit of the invention may occur to those skilled in the art. Therefore, it is intended that no limitations be placed on the invention except as defined by the scope of the appended claims.

What is claimed is:

1. The combination with a bottom receptacle having a circular top rim, of a rubbish incinerator attachment I comprising an upwardly tapering frusto-conical flue member, a horizontally flanged, downwardly extending annular ring element secured to the bottom edge of said flue member and being formed and arranged to supportingly and detachably engage on said top rim, a cylindrical, vertical gas discharge duct connected to the top end of said flue member, a downwardly tapering, sparkarresting conical screen mounted in the upper portion of said gas discharge duct, a horizontal flat baflle disc secured to the top end of said duct coaxially therewith and spaced above the top peripheral edge of said duct to prevent the entry of snow or rain into the duct, an annular downwardly convergent main grate mounted substantially horizontally in the lower portion of said flue member, a circular grate element, means supporting said circular grate element in the central portion of said main grate for rotation around the axis of said main grate, an outwardly extending handle rod rigidly secured to said circular grate element and projecting externally of said flue member, and a hinged door mounted in the intermediate portion of said flue member.

2. The combination with a bottom receptacle having a circular top rim, of a rubbish incinerator attachment comprising an upwardly tapering frusto-conical flue memher, a horizontally flanged, downwardly extending annular ring element secured to the bottom edge of said flue member and being formed and arranged to supportingly and detachably engage on said top rim, a cylindrical, vertical gas discharge duct connected to the top end of said flue member, a conical downwardly tapering, spark-arresting screen mounted in the upper portion of said gas discharge duct, a horizontal flat baflle disc secured to the top end of said duct coaxially therewith and spaced above the top peripheral edge of said duct to prevent the entry of snow or rain into the duct, an annular downwardly convergent main grate mounted substantially horizontally in the lower portion of said flue member, an inner ring centrally secured in said circular main grate, a circular grate element provided with a peripherally grooved outer ring element rotatably receiving and supported on said inner ring, whereby said circular grate element is supported for rotation around the axis of said main grate, an outwardly extending handle rod rigidly secured to said circular grate element and projecting externally of said flue member, and a hinged door mounted in the intermediate portion of said flue member.

References Cited in the file of this patent UNITED STATES PATENTS 218,381 Grossius Aug. 12, 1879 519,026 Ringheim May 1, 1894 1,477,638 Feigenbaum Dec. 18, 1923 1,787,081 McLellan Dec. 30, 1930

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