US1140674A - Steam-boiler furnace. - Google Patents

Description

- C. E] GOOGINS.

STEAM BOILER FURNACE.

APPLICATION FILED JUNE 15, 1914.

Patentsd May'25, 1915.

C. E. GOGGINS.

STEAM'BOILER FURNACE.

APPLHJATKON FILED JUNE 15. 1914.

Patented May 25, 1915.

2 SHEETSSHEET 2.

I improvement,

serving and coking oi the fuel and devices caries.

stream-roman summon.

Specification of Letters Patent.

Application filed June 15, 1914. seriaino. 34$,13.

9 To aZZ "whom it may concern:

Be it known that 1, CHARLES E. Gooern's, a citizen of the United States, residing at Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Steam-Boiler Furnaces, of which the following is a specification.

This invention relates to steam boiler furnaces, and belongs in the same class of fuel burning and feeding apparatus with the contrivances described and claimed in Letters Patent of the United States No. 795,388, dated July 25, 1905, issued tome, and upon which this invention is believed to be an with respect to the initial for performing those operations, and as regards the means for supporting and moving the grate bars.

The special construction and arrangement of the parts comprised in this invention are illustrated in the accompanying drawings, of which.

Figure 1 represents a'vertical, longitudinal section of all parts assembled. Fig. 2

is a front view of the front wall of the furnace described as a movable wall, and shows the operating members borne by the Wall. The section in Fig. 1, is on broken line 00-50 in'Fig. 2. y

In the drawings and throughout the description, the same letter or numeral is employed to refer to the same part.

Considering the drawings, the floor of the furnace, designated by the letter A, has

erected thereon .the side walls a and a.

- Upon the floor are the track rails B and b,

volved by the pulley e, or in some other con: venient and usual way. The shaft .(Z oper ates two eccentrics F and G having the arms 3 and g. The arms are each provided with a movable sleeve such as the sleeve H onthe arm 7, and the sleeve is adjustable lengthwise upon the arm by means of the threaded end h of the arm engaging the Ihandwheel J havinga threaded hub. Upper and lowernuts j and j lock the hand wheel and sleeve in an adjusted position. M

Pivotally secured to the sleeve H isth forked end of a crank arm K, and the arm is attached to and operates a transverse shaft in journaled in that portion of the Patented are, as, rare.

frame of the carriage C fixed upon the front or outside of'the wall D. Upon the shaft In there is a partly toothed gear-Wheel L, and this gear meshes with a like gear M on another transverse shaft N similar to the shaft is. The transverse shafts it and N are rocked by the gears and arms 0 and P fixed to those shafts are correspondingly moved. By means ofthe adjustable connecting rods Q and R, to the two portions 7' and S of the inclined grate are reciprocated in a slanting direction. The grates are inovably sup ported upon the wheels or rollers T and t that are revoluble in suitable hearings on the carriage frame below the grate. It will be understood that, as illustrated in Fi 2,

there are four rollers for one portion of the movable grate, and four rollers for the other portion. The grooved guides U and a secured to the under sides of the portions r and S, guide those portions on the rollers.

The grate bars V and o are of the flat, perforated type and overlap each other. They move slantingly up and down with respect to each other.

Atthe lower end of the inclined grates is located a rotary dumping grate W, on the shaft w, and having the air openings 3 between the bars. Grate W revolves r ar- Wardly, sweeping an. apron 1, by which all the burned fuel is directed upon the grate W. The sprocket wheel 2 on the shaft w, connected by chain 3, sprockets l, and chain 5, with the sprocket 6 on the shaft d, turns the grate W1 It will occasionally happen that clinkers or large, hard masses of ash carried around by grate W, will strike the pivoted bar 7. In that case, the arm 8, which is rigidly attached to the bar 7, operates the connecting rod 9, and bell c'ranlr 10, raising the weight 12, and allowing the 'clinkers' topass downwardlyinto the ash The Weight 11 returns the bar 7 to space.

The weight is adits original position.

justable upon the threaded end 12 of the bell? crank 10. I

Supported by the furnace arch above the front wall D, is chopper 13, into which the fuel is fed from any source. The-hopper opens downwardly upon a movable pusher plate 14, arranged to slide upon anexternal fuel-receiving plate 15, usually inclined as illustrated, and borne by or forming a part of the front wall D.. The pusher plate is operated by means of the adjustable connecting rod 16 pivotally connected with the rocking arm 17 that is attached to the transverse rockin shaft 18 journaled in that eccentric arm 9 in the manner described for the sleeve H. 25, The function of the pusher plate is to move the fuel from the hopper along tue inclined external plate l5 through the throat 22 and upon the coking grate 23 that is arranged next to the wall D on the nside and is supported by the wall. The coking grate is substantially a perforated continuation of the plate 15, and it Will be observed in Fig. 1 that the higher end of the inclined-or burning grate meets the lower end of the coking grate. Beneath the eel:-

ing grate is a blast chamber 24 into which air is 'forced by the-blower 25 supported upon the outside of the wall D, and the air is thus directly delivered under pressure to the fuel upon the coking grate. The blower is operated by pulley 26, belt 27, and pulley 28 on the driving shaft d.

In the operation of this invention, fuel.

from the hopper is pushed along inclined plate 15 upon the coking grate,.also inclined as shown. Airfrom the blast chamber 2%]: is sent through it directly and it is, to a greater or less degree coked, its volatile, smoke-producing constituents being expelled, to be subsequently sucked down over the blazing fuel on the burning grate and there fully consumed. The pusher plate moves the fuel both on plate 15 and the coking grate by reason of its continuity,-and the coked fuel is delivered upon the upper end of the burning grate. The reciprocating grate bars shake it down as fast as may -be desired, and the ashes are dumped by the rotary dumping grata- It isthought to be discernable from Fig. 1 that by increasing or decreasing the lengths of the eccentric arms 1'' and g, the.

positions and movement of the grate bars, and the position and movement of the 80 pusher plate may be altered. For example,

the longer the arm f is made the less will be the angle between the arm f and the crank arm K, fewer the teeth of the partial gears which will mesh, and the less will be the relative movements of the grate bars connecting the said shafts, a second arm atwith respect to each other. Similarly, the longer the eccentric'arm g,.the farther the end of the pusher plate will be from the coking grate at the lower end of its inclined excursion. The adjustment of the partly yo toothed gears controls the movements of the grate bars, for the reason that one gear actuates the operating means for one of the two sets of grate bars, and the other gear does the same with relation to the other set of grate bars. In regard to the adjustment of the pusher-plate on the fuel-receiving plate, it is necessary in practice to push certain, kinds of coal almost through the throat 22, while other kinds need only be so moved along the inclined plate 15. If properadjustments are made, a particular kind or quality of fuel may be first delivered to the coking grate at any quantity rate, and, subsequently and independently moved along .by the movable bars of the burning grate.

It is believed that this invention may be advantageously used with fuel from widely different mines, and that excessive smoking will practically alwaysbe prevented with ordinary care.

Having now described this invention and explained the mode of its operation, what I claim is V 9F 1. In a furnace, the c ombination with the front wall, of parallel transverse shafts rotatively supported on the outside of the front wall, arms attached to the said shafts, a grate having portions each movable back and forth, rods connecting the said arms and the movable portions of the rate, gears connecting the said shafts, a second arm attached to one of the said shafts, a transverse driving shaft arranged upon the front wall below said parallel shafts, an upwardly extending arm having its upper portion pivotally connected Wltllllllfi said second arm, and means connected with the driving shaft and constructed to move the said upwardly extending arm up and down in the direction of its length.

2., In a furnace, thecom'bination with the front wall, of parallel transverse shafts rotatively supported on the outside of the front Wall, arms attached to the said shafts, a grate havingportions each movable back and forth, rods connecting the said arms and the movable portions of the grate, gears tached to one of the said shafts, a transverse driving shaft arranged upon the front wall below said parallel shafts, an upwardly extending arm having its upper portion pivotally connected with the said second arm, means constructed to move the said 110- wardly extending arm up and down in the direction of its length and actuated by the driving shaft, and means carried by the said arm for changing its length between the driving shaft and the pivotal connection with said second arm.

3. In a furnace, the combination with the front Wall, of parallel transverse shafts rotativ'ely supported on the outside of the tached to one of the said shafts, a transverse driving shaft arranged upon the front wall below said parallel shafts, an upwardly extending arm, andan eccentric upon the driving shaft connected with the said upwardly extending arm for moving the said arm up and down in the direction of its length, the up er portionfof the said upwardly ,extend' the direction of the'length of the arm and having a pivotal connection with the said second arm.

Intestimony whereofl affix my signature in presence of two witnesses.

-' CHARLES E. GOOGINS.

' Witnesses:

' IRVING F. Goooms,

EDGAR L. PAYNE.

ng arm being adjustable in

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