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Oct. 18, 17938. J. s. BENNETT y2.7,l.'33,798 APPARATUS FOR DISTRIBUTING GRANULAR OR PULVERULENT MATE Filed Jan. l0, _1936 1MAL 3 Sheets-Sheet l Oct. 18,' 1938. J. s. BENNETT 2,133,798 I APPARATUS FOR DISTIÍIBUTING GRANULAR OR PULVERULENT MATER LAL Filed Jan. 10, 1936 4s sheets-sheet 2 Get. 18, `1938. J. s. BENNETT 2,133,798 APPARATUS FOR DISTRIBUTING GRANULAR OR PULVERULENT MATERIAL Filed Jan’. l0, 1936 3 Sheets-Sheet- 3 Patented Oct. 18, -1938 i 2,133,798 i UNITED STATES PATENT OFFICE i 2,133,798 APPARATUS FOR DISTRIBUTING GRANU - LAR OR PULVERULENTv MATERIAL Joseph S. Bennett, Merion, Pa., assignor to Amer ican Engineering Company, Philadelphia, Pa., a corporation of Pennsylvania Application January 10, 1936, Serial No. 58,444 8 Claims. (Cl. 193-2) This invention relates to material distributing apparatus, and more particularly to apparatus for distributing granular or powderous materials among aplurality of feeding devices. IN5_ One object of the present inventionA is to provide generally improved distributing apparatus for granular or pulverulent materials. ' Another object is to provide improved appara tus for evenly distributing fuel, such as coal, coke, iz) and cinders, among a series of stoker feeding devices so that the -fuel fed to the furnace Will be substantially uniform throughout. Another object is to provide improved material chutes having compartments therein for receiving materials of different kinds, the chutes being so constructed as to evenly distribute materials v’among a series of receiving devices. Other and further objects will become appar ent as the description of the invention progresses. 20 Of the drawings: . latter may receive cinders or powderous fuel from spouts I5, as will appear more fully'hereinafter. Fig. 2 shows a ram 6 in its advanced position. Upon recession thereof, after a feeding operation, the fuel in compartment I3 will, first gravitate into the cylinder l, after which fuel from com partment I2 will enter said cylinder. As the ram is then actuated in the 4feeding direction the heavier materials gravitating in the cylinder from compartment I2 will be pushed over the lighter materials, as shown in Fig. 2. The lighter fuel, being thus covered by a layer of heavier fuel, will not be blown from the grates by the draft air, and as a result complete combustion of all of the fuel fed to the furnace is assured. Chutes I4 may be of the conical type shown and described in United States Patent No. 1,947,011, and each receives fuel from overhead bunkers (not shown) through a spout I6. By this construction the large and small particles of fuel gravitating into 20 Fig. 1 is a side elevational View of a stoker fur each chute are evenly distributed over the entire nace showing one form of distributing means- width of the discharge end thereof, and conse associated therewith. quently each of the associated fuel feeding devices Fig. 2 is a sectional elevational View of one of receives an equal quantity of fuel. e b5 CII the stoker fuel feeding devices and the associated The apparatus for distributing cinders or pow hopper, showing a portion of the distributing derous fuel to compartment I3 of hopper 5 con apparatus. sists -of a receiving chamber I1 which receives Fig. 3 is a front elevational view partly in sec materials from any suitable hopper (not shown) tion taken substantially along line 3--3 of Fig. 1. through a spout I8. Chamber I 'I comprises a 30 Fig. 4 is a plan view of the apparatus shown frustro-conical casing I9 having a conical dis in Fig. 3. tributing member 20 mounted therein in spaced Fig. 5 is a front elevational view partly in relation with the walls thereof. , Chamber I‘I is section of an alternative construction. therefore of substantially conical form, .having Fig. 6 is a sectional view taken substantially an annular -discharge opening at the lower end 35 along line 6_6 of Fig. 5, and thereof. The upper ends of spouts I5 are secured Figs. 7, 8 and 9 are sectional views taken sub to a flange 2| of casing I9> and communicate with stantially along lines ‘I---'I, 8_8, and 9_9 respec the discharge end of chamber I 1. As shown more tively, of Fig. 5. Referring to the drawings, the numeral I desig 40 nates generally, a furnace equipped in the pres >ent instance with a multiple retort, underfeed stoker 2. Stoker 2 comprises the usual alter nately disposed retorts 3 and tuyère rows 4. Fuel is supplied to the stoker 2 from a hopper 5 dis posed near the front end thereof, and a series of rams 5 operating in cylinders ‘I feed prede ment E3 of hopper 5 in such a manner that each 45 ram 6 will feed an equal quantity of cinders or powderous fuel upon each reciprocation' thereof. 'Inasmuch as the chutes I4 communicating with underfeed the fuel in the retorts in a well known manner. The rams 6 and pushers 8 are oper ated by‘any suitable power mechanism 9, they being operatively connected thereto by a link and lever mechanism indicated generally by the nu meral li). Hopper 5 is provided with a partition I E which divides the space therein in_to two com partments I2 and I3, the former of which may 60 receive coal or coke from a chute I4, while the 35 thereof enter the upper end of compartment I3 directly over the cylinders 'I. By this arrange 40 ment, it is seen that the fuel gravitating into chamber I'I is evenly kdistributed therein, vand as a result equal quantities of fuel will enter each of the spouts I5 and be discharged into compart cation thereof. 00 prises a series of fuel feeding pushers 8 which 30 ' particularly in Figs. 3 and 4, the spouts I5 are >so arranged that the, lower' or dischargey ends termined amounts of the fuel gravitating into the cylinders from said hopper upon each recipro The bottom of each retort 3 com 25 compartments I2 also evenly distribute the heav ier and lighter particles of fuel, among the cyl 50 inders 'l _associated therewith, the fuel fed to each section of the stoker will be substantially uniform throughout. ' Figs. 5 to 9 inclusive show an alternative con struction for distributing materials of different kinds among each of a series of feeding devices. This construction comprises a chute 22 having downwardly inclined, substantially conical top and bottom Walls 23 and 24 respectively, and 60 2 2,133,798 downwardly diverging side walls 25. A substan tially conical partition 26 is mounted between top and bottom walls 23 and 24 dividing the interior of chute 22 into compartments 21 and 28, the former of which may, in the present instance, receive cylinders or powderous fuel, while the latter, coal or coke. Top and bottom walls 23 and 24, and partition 26 terminate at the-lower ends thereof in vertical extensions 29, _30 _and 3| respectively, forming with the end walls 32 ver tical discharge passages 33 and 34 for compart ments 21 and 28. Substantially cylindrical eX tensions 35 and 36 are secured to the upper end of chute 22 in any suitable manner, forming inlet passages to compartments 21 and 28 respectively. The discharge passages 33 and 34 of chute 22 communicate respectively with the compartments 31 and 38 of a hopper 39. The fuel supplied to hopper 39 gravitates into cylinders 40, and is fed to the furnace by the rams 4I operating therein, as previously described. rI_lhe top and bottom walls 23 and 24, as well as partition 26 incline downwardly at an angle some what greater than the angle of repose, and by virtiie1 of the conical construction thereof the materials gravit'ating in'compartments 21 and 28 will be evenly distributed across the entire dis charge end of the chute. ' ` While the embodiments herein described are admirably adapted to fulfill the objects primarily stated, it is to be understood that the invention is not limited> thereto, since it may be embodied in other forms, all coming within the scope of the claims which follow. What is claimed is: ' ' , l. In a device of the class described, the com bination of a chute comprising upper and lower walls of substantially conical form, and down wardly diverging side walls, a substantially con partitiondisposed between said upper and 40 ical lower walls dividing said chute into two com partments adapted to receive materials of differ ent kinds, means deñning inlet passages for each of said compartments, and extension means de ñning discharge passages for said compartments. Y 2. In a device of the class described, the combi nation of a chute comprising upper and lower walls of substantially conical form and down wardly diverging side walls, a substantially con ical partition disposed between said upper and lower walls and in substantially parallel relation therewith dividing said chute into two compart ments adapted to receive materials of different kinds, means deñning inlet passages for each of said compartments, and extension means deñning discharge passages for said compartments. 3. A chute for conveying granular or pulver ulent materials comprising, upper and lower sub stantially conical walls, and diverging side walls, extensions provided at the lower ends of said top and bottom walls defining a discharge passage for said chute, a second chute superimposed upon said íirst mentioned chute, having an upper wall of substantially conical form spaced from the upper wall of said first mentioned chute, means deñning an inlet opening for said second men tioned chute, and a substantially vertical exten sion provided at the lower end of the upper wall of said 'second .chute providing a substantially ver tical discharge passage therefor. 5. In a device of the class described, the combi nation of a series of material receiving devices, means including an inclined member having downwardly diverging side edges for evenly dis 15 tributing materials of one kind among all of said receiving devices, means connecting said dis tributing means with each of said receiving de vices, means including a substantially conical member for evenly distributing materials of an 20 other kind among all of said receiving devices, and means connecting said last mentioned means with each of said receiving devices. 6. In a device of the class described, the com bination of a series of material receiving devices, 25 means including a conical member for evenly dis tributing materials of one kind among all of said receiving devices, means connecting said dis tributing means with each of said receiving de vices, means including a conical member super imposed upon said distributing means for evenly distributing materials of another kind among all of said receiving devices, and means connecting said last mentioned means with each of said re ceiving devices. 7. In a device of the class described, the _com bination with a series of material receiving de vices, of apparatus for evenlydistributing mate rials of different kinds among all of said receiving devices, said apparatus comprising an inclined 40 chute provided with a distributing member hav ing downwardly diverging side edges for dis tributing materials of one kind among all of said -receiving devices, a second means for distributing rmaterials of another kind among all of said re 45 ceiving devices, said last mentioned means in cluding a chamber having a substantially con ical member provided therein, said chamber hav ing'inlet and discharge openings provided there in, and spouts connecting >said discharge openings with said receiving devices. . 8. In a device of the class described, the com bination with a series of material receiving de vices, of apparatus for evenly distributing mate rial of different kinds among all of said receiving 55 devices, said apparatus comprising an inclined chute provided with a distributing element hav ing downwardly diverging side edges for distrib uting materials of one kind among said receiving 60 a partition disposed between said upper and- lower devices, means deñning inlet and discharge open 60 ings for said chute, means connecting the dis charge openings of said chute with said receiving compartments, and substantially vertical eXten sions provided at the lower ends of said top and 65 bottom walls 'and said partition, said extensions defining substantially vertical discharge'passages communicating with said compartments. devices, a second device for- distributing materials ' of another kind among all of said receiving de walls dividing the chute into compartments, means defining inlet openings for each of said 4. In a device of the class described, the com bination of a chute having upper and lower walls of substantially conical form, and downwardly 70 diverging side walls, means defining inlet pas sages for said chute, and substantially vertical vices, said means comprising a chamber having a substantially conical member provided therein, means defining inlet and discharge openings for said chamber, and a series of spouts connecting said discharge openings with said receiving lde vices. ' 70 " JOSEPH S. BENNETT.