US1789734A - Combustion apparatus - Google Patents

Description

Jan. 20, 1931. h J. A." FILBERT 1,789,734

COMBUSTION. APPARATUS Filed June 13, 1927 4'Sheets-Sheet l VENTOR ATTOR N EY Jan. 20, 1931. J. A. FILBERT COMBUSTION APPARATUS Filed June 13, 1927 4 Sheets-Sheet 2.

mvsrqon ATTORNEY Jan. 20, 1931 J. A. FILBERT I 1,739,734

COMBUSTION APPARATUS Filed June 15, 1927 4 Sheets-Sheet 3 ,Wm w M, M, 0 f A m .1 r z W JI/ 7/ "Mr 1 za l gz. i a

Jan. 20, 1931. J. A. FILBERT COMBUSTION APPARATUS 4 sums-sum 4 Filed June 13. 1927 ATTORN EY Patented Jan. 20, 1931 Jenn A. FILBER'D, or CHICAGO, ILLINOIS comnus'rron APrAnArus 1 Application filed Julie 13,

This invention relates to certain novel improvements in combustion apparatus and is specifically directed to improvements in grate construction for burning coal and similar fuels in furnaces and boilers.

It is among the objects of my invention to providea grateconstruction in which the air passage to. the fuel may be regulated iniaccordance with the degree of heat intensity desired and also in accordance with the grade and kind of fuel used.

Another object of the invention is to provide a grate construction embodying an arrangement for breaking up clinker formations and thus producing a more complete combustion of the fuel with attendant reduc-'- tion of ash and incombustible clinkers. Still another object of the invention is to provide a grate construction which will permit expeditious control of the fire and therefore permit the usage of a relatively shallow nre.

A further object of theinvention is to provide a grate construction from which the fire may be quickly removed when so desired.

Grates of the prior art have had relatively large openings therein and when a fire was being laid it was difficult to prevent small particles of fuel from falling through these 39 openings.

In viewer this it is a. further object ofniy invention to provide a construction in which the magnitude of the openings in the grate may be regulated so that they may be substantially closed during the laying of a fire, in order to obviate this just described difiiculty. V p

"A still further object of the invention is'to provide a. grate construction in which certain lo parts may be moved relative to each other, and which will be mounted in such a way that a high leverage will be provided, which will permit movement of these parts with very little exertion.

A still further object of the invention is to provide such a grate construction which will be simple in construction and economical to manufacture. p 7

Other objects will appear hereinafter.

The invention consists in the novel comor ud 1927. serial No. 198,582.

bination and arrangement ofparts to be hereinafter described and claimed.

The invention will be best understood by reference to the accompanying drawings, showing the preferred form of construction and in which: I V I v p Fig. 1 is a plan View of the bottom side of my improved grate with thebar rocking mechanism partially removed;

Fig. 2 is a sectional view tak n substan' tially in the plane of the line 2-2 of Fig.1;

Fig. 3 is' a sideelevation'al view of my improved grate construction; Q i

Fig. 4 is a sectional detail view taken substantially in the planeof the line Hon 5 Fig.1;

Fig. 5' is a fragmental'plan View of the top side of my improved grate; j

Fig, 6 is a sectional detail view taken sub-- stantially in the plane of theline 6-6 on Fig. 1;

Fig. 7 is a detail view of the link construction viewed from the opposite direction to Fig. 2; and i Fig. 8 is a detail view of a clinker cutting device employed in the mechanism.

My improved form of grate construction is adapted to be mounted in'the fire box of any typeof solid fuel burning apparatus such as v furnaces, stationary, and locomotive boilers. As the following description proceeds it will become apparent that I am describing here a section of the grate, and it is to be understood that one or more of these sections would be provided in the fire box, dependent upon the size thereof.

These grate sections comprise asubstantially rectangular frame 10 that is adapted to be located within the fire box. This rectangu lar frame 10 comprises side members 11 and 9d 12- and end members 13 and 14.- Suitably secured to the frame 10 is a section 15 which is adapted to be positioned extraneous of the fire box and on which certain operating mechanisms to be described more fully herein- 9 5 after are mounted.

Referring to Fig. 3 it maybe seen that the side members are provided with a plurality of slots such as 16 which embody a straight portion which-terminates in a rounded pormo straight portions of the slots 16 are of smaller size than the rounded portions thereof and therefore the annular bosses 18 are arranged so as to embody a flat portion 19 which is" disposed parallel to the .extent of the. gratemembers 17 The purpose of this flat portion 19 is that, when the grate members 17 tablished.

are to be'inserted into the device, they will be turned so that their upper face will be in a substantially vertical plane and therefore, as they are inserted into the slots, the bosses 18 will pass through the straight portions of the slot 16, the side 18 being cut away sufficiently to permit this. However, after the grate members are in their proper position and are rotated so as to be located in a horizontal plane the bosses 18 will be wider than the straight portions of the slot 16 and therefore the grate members 17 will be prevented from moving from their position.

, Referring to Fig. 6, it may be seen that the grate members 17 each have a downwardly protruding boss 2O formed thereon in juxtaposition to one end thereof. 'A connecting bar 21 having upwardly protruding bosses 22 is provided. 7 The upper ends of the bosses 22 are secured to the lower ends of the bosses 20 in any approved manner such as by the bolt and nut construction 23, said construction being such that a pivotal connectionises- The section 15 embodies a downwardly protruding section 24 which is disposed on the same side of the device as the connecting bar 21 and bosses 20. Pivotally secured to the section 24 is a lever 25 that has a portion which extends through a slot 26 in the member 15. Disposed for cooperation with the lever 25 is a segment 27 which lever will be transmitted to said connectinghas a slot 28 formed therein through which the pin 29 extends, said pin 29 being carried on the lever 25, this construction serving to limit the movement of the lever 25. A connecting rod 30 connects the lever 25 to the connecting bar 21 so that movement of said bar and therefore to the grate members 17 A removable handle 31 is provided which is adapted tobe fitted onto the end of the lever 25. By moving the lever 25 back and forth through the slot 26 the grate members 17 are caused to rock about the bosses 18 mounted in the slot 16 thus providing a means for removing ash from the fire and also providing an arrangement whereby the fire may be expeditiously dumped.

As is shown best in Figs. 1 and 5 the grate members 17 are formed so as to embody a longitudinal slot 32 and opening into this slot are a plurality of transversely extending slots 33 Adapted to pass through the slots 36. The members 35 and 36 support rails .37 and 38 attheir lower ends, said rails being co-extenslve with the length of the grate. 'As

can best be seen by referring to Fig. 2 the rail" 38 embodies a plurality of upwardly protruding bosses 39 in which the slots 40 are provided, a similar construction being providedon the rail 37., Therails 37 and 38 are so positioned that the bosses 39 on these rails are in alignment. Pivotally mounted in the slots 40 are the link members 41 and pivotally secured to the outer end of these link members 41 are the link members 42. As is best shown in Fig 4 downwardly protruding bosses 43 are provided on the under side of the clinker cutting members 34 and the ends of the links 42 are pivotally attached to these bosses 43. The links 41 and 42 are pivotally attached together. as stated, and this pivotal mountclinker cutting members 34 are adapted to pass through the" slots 32 and 33 provided therein. A so-called pantograph lever arrangement is provided for moving the members 34 in a manner described. Brackets 46 (Fig. 1) are provided between the rails 37 V and 38 and these brackets provide upwardly protruding bosses 47 (Fig. 2). Pivotally A mounted in the bosses 47 are the links 48 and 49. Downwardly protruding bosses 50 (Fig. 2) are provided on certain of the clinker cutting members 34, the arrangement shown in Fig 2 being the preferable one and links 51 and 52 are pivotally attached to these bosses. The free ends of the links 49 and 52 are pivotally secured together as at 53 and a link 54 connects these two pivotal connections. The links51 and 48 are pivot-- ally secured together, as at 55 and the link 56 connects these two pivotal connections together. A link 57 is secured to the pivotal connection 55 between the links 51 and 48 as indicated at 58 and a link 59 is attached to the pivotal connection 53 between the links 49 and 52 as at 60,the other end of the links 57 and 59 being attached to the rocker 61 as at 62 and 63. The rocker 61is pivotally attached as at 64 toa bracket 65 that is carried by the end member 36 and the sect-ion 15. As can best be seen in Figs. 3. and 7 the links 57 and 59 are attached to the rocker .61 at opposite ends thereof. Secured to the rocker member 61 is an upwardly protruding arm 66 which'protrudes through a slot67 provided in the section 15. The bracket 65 includes a segment 68 which also protrudes through the slot 67 and a plurality of ratchet teeth 69 are provided on the segment 68 and are adapted to be engaged by V the spring urged pawl 70 that is carried on the arm 66. The upper endofthe arm 66 is arranged so that the handle 31 may be fittedthereon as said handle is adapted to operate both mechanisms.

With the grate members 17 disposed the manner shown in Fig. 2 and with the clinker cutting members 34 disposed shown in this figure the'handle 31 may be fitted on to the arm 66 and then by withdrawing the pawl'TO fromengagement with the ratchet teeth 69,.the arm 61 may bemoved forwardly. As can be seen by this figure, the link 57 is attached to the upper end of the rocker 61 and to .the links 51 and 48 at 58 which is the connection most remote fromthe rocker 61.

attached to the lower side of the rocker member 61 and is connected to the links 49 and 52 at 60 which is the connect on nearestthe rocker 61. Therefore when the rocker 61 is moved forwardly it will tend tospread the links 51 and 52 and 48 and 49 away from each other and will thus cause the clinker cutting members 34 to move down 32 and 33 and continued movement ofthe rocker arm 31 will dispose the members 34 in the positionshown inFig. 3;. Sinceall of the members 34 are supported indirectly from the shafts 45 by the links42, it is apparent that movement of any of the clinker cutting members 34 will be transmitted to Further it is apparent by referring to Fig. 3 that it will be necessary for the members 34 to be disposed in the position shown in this figure in order that the grate members 17 may be rocked in the man ner described. By referring to Figs. 1 and 2 it may be seen that the links'51 and 52 are formed in a certain manner in order that they will pass through the slots 33 when the members 34 are moved from the position shown in Fig. 3 to the position shown in 2 by actuation of the rocker 61. p

Referring to Fig. 8, it may be seen that the upper side of the bars of the member are rounded with a small radii. After a fire has been laid in the grate and after fire has been burning for an appreciable time the fuel tends to cake or form a solid mass which is not conducive to eflicient combustion. Therefore, in order to break this mass the members 34 are caused to move in the manner described, through the grate mem bers 17 and the rounded edges on these memthe others.

in the position referring to ofccurse be The link 591s through the slotsv said berstend to break up, the mass. or clinher formation and therefore cause more complete combustion. f

It is apparent the members'34 and the grate members 1'?- can be varied. If the members 34 are posi tioned in the slots 32 in such a way that they are disposed substantially horizontal with the grate members 17, that is so just the rounded po'rti ns thereof protrude through the slots, a substantially fiatsurface having very small openings will be provided. This arrangement can be expeditiously employed during the starting of the fire to prevent small particles of fuel falling. through the openings in the grate. If, however, after a fire has been burning for an appreciable length of time and the heat intensity thereof is not as great as desired, the members 34 can beeffeetively used to break upthe clinker formation in the manner describedand they can then be disposed out of engagement with the members 17, thus providing relatively iarge openings throughwhich a compara tively large quantity of air passes which will bust ou and thus produce a hotterfire. By varyi the relative position of. the members: 34 with respect to the members 17, the amount of air orso-called draft through the device can bevery expeditiously controlled.

As has been stated heretofore the grate member h in described is adapted to ac positioned in a relatively large fire box insections, and when this is done each ofjtl" sections will be individually controlled, w.- will of course permit uniform distribution of heat in a boiler furnace. tions is not described herein for this forms no part of my invention and the arrangement of these devices will be readily apparent to anyone skilled in theart.

While I have llluStlittctl preferred form of construction for earl-yin my invention into effect; this is capable of variation and modification, without depart- 111g from the sp rit of the invention. I.

1. A device of the character stated including a grate frame, grate sections mounted in said frame having openingstherein, breaker members of a shape ant size substantially similar to the outline of said openings to permit passage of said members through'said openings, links having correspondingends.

conducive to a more rapid c0m'-' more uniforn'i dis}. tribut on of the fire bed and thereforeinere The manner of mounting these secs and described the r scope of the i an as season b en.

thereof pivotally connected to said breaker V 7 members, means for interconnecting the op posite ends of said links, other links each havin corres ondin ends lvotall connec a: a: y

ed at each of the connections of said first named links to said interconnecting means,

means for pivotally supporting the opposite ends of said lastmentioned links whereby said breaker members Will be supported for simultaneous movement through said openings in said grate sections, and means for imparting movement to said breaker. members. V

2. In a device of the character stated, a grate frame, grate sections mounted in said grate frame having openings therein, breaker members of a size and shape substantially similar to the outline of saidopenings whereby said members Will be passable through said openings, links pivotally connected to the underside of said breaker members and movable in a plane parallel to the extent thereof, other links having one of the ends thereof pivotally-connected to supporting means carried by said grate frame, means for interconnecting the other ends of said last mentioned links, means for imparting movement to said breaker members to move said breaker members through said openings, and means for locking said last named means to hold said breaker members in predetermined positions.

3. In a device of the character stated, a grate frame, grate sections mounted in said grate frame having openings therein,breaker members of a size and shape substantially similar to the outline of said openings Whereby said members will be passable through said openings, links pivotally connected to the under side of said breaker members and movable in a plane parallel to the extent thereof, other links having one of the endsthereof pivotally connected to supporting means carried by said grate frame, means for interconnecting the other ends of said last mentioned links, arms pivotally connected to certain ofsaid grate sections and movable in a plane substantially at right angles to the extent of said sections, other arms pivotally connected to said supporting means, means for interconnecting the other ends of said last mentioned arms, and means for imparting movement to said last mentionedarms to move said breaker members toward and through the openings in said grate sections.

4. In a device of the character stated, a grate frame, grate sections mounted in said grate frame having openings therein, breaker members of a size and shape substantially similar to the outline of said openings where by said members Will be passable through said openings, links pivotally connected to the under side of said breaker members and movable in a plane parallel to the extent thereof, other links having one of the ends thereof pivotally connected to supporting means car ried by'said grate frame, means for interconnecting the other ends of said last mentioned links, arms pivotally connected to certain of said grate sections and movable in a plane substantially at right angles to the extent of said sections, other armspivotally connected .to said supporting means, means for inter-' connecting the other ends of said last men tioned arms, links for interconnecting the interconnectionsbetween said last mentioned arms including arms extending beyond said frame,= and 'means connected to said last named links for imparting movement thereto whereby I movement may be transmitted through said arms to certain of said breaker members whereby ,movement will be trans mitted throughsaid links to the other of said breaker members to cause said breaker members to be simultaneously moved relative to and through said openings.

5. Ina device of the character stated, a grate frame, grate sections mounted in said grate frame having, openings therein, breaker members of a size and shape substantially similar to the outline of said openings Whereby'said members will be passable through said openings, links pivotally connected to the under side of said breaker membersand movable in a plane parallel to the-extent thereof, other links having one of the ends thereof pivotally connected to supporting means carried by said grate frame, means for interconnecting the free ends of said last mentioned links, arms pivotally connected to certain of said grate sections and movable in a plane substantially at right angles to the extent to said sections, other arms pivotally connected to said supporting means, means for interconnecting the other ends of said last bers to be simultaneously moved relative to and through said openings, saidlast named means including a rocker member, an arm extending from said rocker member, and means associated With said last mentioned arm for locking said arm in predetermined positions to lock said breaker members in predetermined positions relative to said grate sections.

In testimony whereof I affix my signature.

- 'JOHN A. FILBERT.

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