US1456138A - Auxiliary feed block for furnaces - Google Patents

Description

May 22, 1923. V. M wKAY AUXILIARY FEED BLOCK FOR FURNACES Filed Oct. 30, 1919 2 Sheets-Sheet l i 8 E v V V May 22, 1923. 1,456,138

- v. M KAY I AUXILIARY FEED BLOCK FOR FURNACES Filed Oct. 30. 1919 2 Sheets-Sheet 2 idatented May 22, 319923.

igtdtddd v the AUXILIARY FEED BLOGK FOB FURNACES. A

Application filed October 39, 1919. Serial No. 334,589

T 0 all whom it may concern:

Be it known that I, VAsIL MAOKAY, a citizen of the United States, residing at Washington, in the District of Columbia, I

have invented certain new useful Improve ments in an Auxiliary Feed Block for Furnaces of which the following is a specification.

The invention relates to a furnace grate supporting structure, and more particularly to the class of dead plates and fuel supporting or feeding members for fuel feeding grates.

The primary object of the invention is the provision of a dead plate of this character, wherein the construction thereof enables the securing of the same in place at the front of a furnace to support the side beams or bars of the fuel feeding grate and to ac commodate the fuel supporting or feeding member of novel construction to assure the distribution of the fuel when introduced into a furnace onto the fuel feeding grate therein, thereby eliminating the hand stokingof the fuel supported upon by the feed ing grate.

Another object of the invention is the provision of a dead plate and a fuel supporting or feeding member, the same being operated simultaneously with the fuel feeding grate in a furnace to assure the positive and successful handling of the fuel without hand stoking by an operator and a uniform distribution of the fuel upon the grate for perfect combustion and consumption in the operation of the furnace, the dead plate being of novel construction to enable the setting and positioning of the same in the fire chamber of a furnace.

A further object of the invention is the provision of an improvement of the designated character, which is simple in construction, thoroughly reliable and efficient in operation and inexpensive to manufacture and install.

With these and other objects in view, the invention consists in the features of construction, combination andarrangement of parts, as will be hereinafter fully described, illustrated in the accom anying drawings and pointed out in the c aims hereunto appended.

. In the accompanying drawings:

Figure 1 is a fragmentary vertical sectional elevation through a furnace showing the dead plate and the fuel supporting or feeding member constructed in accordance with the invention associated with a fuel feeding grate.

Figure 2 is a horizontal sectional view showing the gratewith the dead plate and the fuel supporting or feeding member in ppsition', the grate and dead plate being in p an.

Figure 3 is a perspective view of the dead plate removed from the furnace.

Figure 4 is an enlarged fragmentary side elevation of the plate fastened to the front wall, the fuel supporting or feeding member and also a portion of the grate.

Figure 5 is a perspective view of a slightly modified form of the fuel supporting or feeding member. p

Figure 6 is a perspective view of a slight modification of the dead plate, the same being constructed for use with two fuel supporting or feeding members.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

Referring to the drawings in detail, particularly Figures 1 and 2 thereof A designates generally a portion of the body of a furnace which. as usual is constructed from brick masonary having formed therein a fire chamber B, the front walls being formed witha doorway G and this front wall at its outer side has fitted thereover the usual front plate D, while at the rear fire chamber B is the bridge E of the ordinary well known construction. Arranged interiorl I of the fire chamber B within the body of the furnace is a fuel feeding grate, which includes spaced parallel rearwardly inclined side beams or bars 10 supporting two sets of grate bars 11 and 12, of'the character shown, arranged transversely of the furnace, the bars of one set alternating with those of the other, and the bars of each set being connected so that they may be simultaneously rocked independently of the bars of the other set. Arranged at the rear end of the grate is a dumping section 18, the

same being adapted. to swing downwardly.

dead plate which is placed within the brick metal front plate, the dead plate 'being' masonryfat the front of thefurnace body A. and is preferably bolted as at 16 to the The portion 18 offthe dead plate'on opposite sides of the recess 19 has formed therein notches 20 constituting seats for. the forward ends of the side beams which are removably received therein as is clearly shown in Figures l and 2 of the drawing. The recess 19" is formed with sidewalls 21, While the flange 17 constitutes the front wall of said I recess,the flange 17 throughout the extent of the width ofthe recess 19 being formed at its upper edgewith a lip 22 to coact with the prime fuel feedingbarin a vmanner pres- I ently described.

The fuel supportlngor feeding member comprises a segmental shaped block or section 23 of substantially the width of the recess 19 so as to protrude within thelatter in relatively close relation" to the lip 22 ,on the flange 17 of the dead plate so that when the member is in normal'lowered position there is no possibilit of the fuel received through the doorway into the fire chamber B sift- I ing'th'rough or fallingbetween the lip 22 andthe edge of the member.

' The grate .bars 11 and 12 have formed thereon depending arms 24, which are pivoted at 25 in brackets 26 on links 27 and 28 respectively, which through the medium of brackets29 connected at '30 with" operating rods 31 and 32 respectively, the latter being extended through the front plate D and are pivotally connected to operating levers 33 swinginglysupported exteriorly of the body Y A of thefurnace, so that on manual manipulation of the levers 33 the series of grate" bars 11 and l2 'will be alternately actuated for the feeding of the fuel within the fire chamber B in the body A of the furnace,

i ward end'of the link 28 so that when the whenthe said fuel is fed onto the gate therein. I

23 has formed thereon an arm 34 which is pivoted at 35 in a bracket carried on the forsaid link is actuate d the member 23 will be simultanenously operated with the series'of grate bars 12, enabling, the fuel initially inproduced-through the doorway into the fire chamber B to bewdelivered onto the grate bar of its series adjacent to the fuelsupporting or feeding member 23, thus eliminating the necessity of 'handstoking the fuel onto the grate, when the said fuel is introduced 1 through the doorway C to-the furnace.

The bridge'E at the rear fire chamberB I in the body A of the furnace has supported therein'below the plane ofthe dead plate a horizontal beam or bearing 37 in which are removably fitted the rear ends of the side beams or bars 10 supporting the grate bars of the grate. I

The fuel supporting or feeding member 23 as shown in Figures 1 and 2 of the drawing has its upper supporting surface fiat and solid. 1 I I In Figure 5 of thedrawingtherejisshown a slight modification of the fuel supporting or feeding member shown at 23, wherein the upper supporting surface thereof is formed with spaced parallel slots 38, which serveas draft spaces, said member having the slots 38 therein being otherwise identicalwith the member 23 hereinbefore described. I In Figure 6 of the drawing there is shown a slight modification'of a dead plate, wherein the rearwardly inclinedangular-portion 39 relative to the spaced vertical. flange 4:0 "has formed therein spaced recesses 41 for accommodating two fuel supportinglor feedin'g members 23, otherwisethe same is i dentical "to the formation of the dead plate shown in detail in Figure 3 of the drawings.

In the operation of the device the'fuel will be introduced through "the fuel opening, in

the front plate, and willfbesupported upon the supporting or feeding member 23. The two sets of grate bars will be operated,has

previously describedpsoas to. feed the fuel towards the reare'nd of the grateand' the fuel supporting or feeding'member' 23 will be operated simultaneously with the set of grate bars 12 so asto feed the fuel upon'theforemost grate bar :11. LBy the "construction disclosed the fuel may be supported and fed on to the grate bars without the'necessity' of hand stoking. v r

It is of course-to'be understood {that changes, variations and modificationsmay be made in the improvement 'hereinbefore described and illustrated-in the accompanying drawings, withoutdeparting from the spirit and scope of theinvention or sacrificing any of its "advantages. 7 I

From the foregoing it isthought that the invention will be clearly understood and construction and mannerof operation of the The fuel supporting or feeding member therefore a more'exten'd'edexplanation has been omitted.

What is claimed is:

1. In combination with a a fuel opening therein, a dead plate secured in the furnace adjacent the fuel opening'and having a recess therein and a socket oneach furnace having side of'the recess, 'sidebeams havingftheir I forward ends received in the sockets, a fuel supporting and feeding. member'pivotally carried by the side beams and received in v the recess of the dead plate, grate) bars pivs porting and feeding member.

otally carried bythe 's'idebeamsand'means for operating the grate bars and fuel'sup- Estates 2. In combination with a furnace having a fuel opening therein, a dead plate secured in the furnace adjacent the fuel opening and having a recess therein and a socket on each side of the recess, said recess being of a width equal to the width of the fuel opening, side beams having their forward ends received in the sockets, a fuel supporting and feeding member pivotally carried by the side beams and received in the recess of the dead plate, two sets of grate bars pivotally carried by the side beams, the forward most grate bar being adjacent the fuel supporting and feeding member, means for operating the grate bars of one set in alternation with those of the other set, and means for operating the fuel supporting and feeding member simultaneously with one set of grate bars.

3. A grate structure for furnaces comprising a dead plate secured to the front wall of the furnace, said dead plate having a recess therein and sockets on each side of the recess, a beam secured to the rear wall of the furnace on a level below that of the dead plate, side bars supported at an inclination by the dead plate and beam, said side bars having their upper ends received in the sockets in the dead plate and their lower ends supported by the beam, a fuel supporting and feeding member pivotally carried by the side bars and received in the recess of the dead plate, grate bars pivotally supported by the side bars, and means for operating the fuel supporting and feeding member and grate bars.

In testimony whereof, I afiix my signature hereto.

V-ASIL MAOKAY.

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