Патент USA US2132392код для вставки
Oct. 11, 1938._ A. R. CHALKER 2,132,392 LOCOMOTIVE STOKER Filed Nov. 18, 1935 ' 4 Sheets-Sheet 1 (W ATTORN EY Oct. 11, 1938.‘ 2,132,392 A. R. CHALKER LOCOMOTIVE STOKER Filed Nov. 18, 1935 oo ’ 4 Sheets-Sheet 2 w \N N . \umNwmm O 1:: ATTORNEY. Oct.- 11, 1938. 2,132,392 A. R. CHALKER LOCOMOTIVE STOKER 4 Sheets-Sheet s’ Filed Nov. 18, 1955 NN “Q. - I , -INVEN.TOR. Abbe/21; R. @hgzlken Q ' ' Qy z ~ / ‘ ' ATTORNEY. Oct. 11, 1938. A, R CHALKER 2,132,392 LOCOMOTIVE STOKER Filed Nov. 18, 1955 4 ‘Sheets-Sheet 4 62 34 INVENTOR. Abbe/wt R. Cha lker’ ‘6% ATTORNEY. Patented Oct. 11,1938 ' . 2,132,392 UNITED STATES PATENT OFFICE 2,132,392 LOCOMOTIVE STOKER' - Albert R. Chalker, Wesleyville, Pa” assignor, by mesne assignments, to The Standard Stoker Company, Inc. (1922), New York, N. ‘1., a cor poration of Delaware ‘ Application November 18, 1935, Serial No. 50,273 6 Claims. My invention relates generally to stokers and particularly to locomotive stokers adapted to (Cl. 105--234) box Ill, at the rear of which is the backhead Ii having a ?ring opening i2 therethrough above convey coal from the locomotive tender to the locomotive‘ ?rebox, there to be distributed over > 5 the ?re. ' It is an object of the invention to provide a stoke'r which is simple in construction, cheap to manufacture, and adapted to be easily and readily installed in pre-existing locomotives and 10 tenders without materially changing theirpres ent structure. . tender B includes the-frame H and the tank ii, the latter being provided with the fuel bin IS, the water compartment l1, and the stoker com partment It. The tank used for purposes of describing the invention is shown as cylindrical but the invention is equally applicable to tanks of 10 other shapes and designs. The upright longitudinally extending walls I9 to convey it directly to the ?ring opening of the and 20 and the inclined transverse wall 2| de?ne the sides and rear of the stoker compartment I8 and separate it from the water compartment H. The fuel bin l6 includes a rear slope sheet 22 and 16 a ?oor 23 provided ‘with a longitudinally extend locomotive ?rebox. ing central opening 24. ' The opening 24 may be A further object of the invention resides in the provision of an approximately straight conduit system housing a single screw‘ conveyor arranged 15 to receive fuel from the tender bin by gravity and . - ‘A still further object of the invention is to pro vide an improved mounting arrangement of the 20 stoker within the locomotive and tender. A further and more speci?c object of the in vention resides in providing a tender with a novel spout arrangement beneath the fuel bin thereof. Further objects and advantages of the inven 25 tion reside in the novel construction of parts and the‘ novel combination and relation of elements, all as brought out in the following description and the appended claims.‘ In the drawings, 30 the level of the locomotive cab deck ii. The . Fig. l is a longitudinal vertical central section through adjacent portions of the locomotive and tender, with the novel stoker applied thereto and shown in side elevation; Fig. 2 is a plan view of the structure shown in 35 Fig. 1 with parts broken away and parts of the closed when desired by a plurality of slidably mounted plates 25 which are so arranged that they may be drawn forward one at a time as the 20 fuel is consumed to present a relatively small gpening in the desired position in the floor of the in. Fuel is conveyed forwardly from the tender to the locomotive ?rebox by a stoker, indicated gen 25 erally by the letter D. The stoker D includes a transfer conduit 26 mounted at its rearward end within the compartment l8 and a short nozzle 21 rigidly secured to the backhead II in any suit able manner and communicating with the lower 30 portion of the ?ring opening l2. The transfer conduit 26 slopes upwardly and forwardly and extends through the cab deck IS, the’ bottom in side surface of the conduit being substantially straight along the medial vertical plane of the 35 conduit. At its forward end the conduit 26 is , Fig. 3 is a longitudinal vertical central section ' provided with a ball member 28, arranged to be through adjacent portions of the locomotive and received in the socket portion 29 of the nozzle 21, locomotive and tender shown in section; . tender, with the stoker applied thereto and shown 40 in similar section; Fig. 4 is a view in end elevation of the locomo tive with the locomotive unit of the stoker applied thereto; Fig. 5 is a sectional view taken on the line 45 5—5 of Fig. 3; ' Fig. 6 is a sectional view taken on the line 6-6 of Fig. 3; and , Fig. 7 is an enlarged fragmentary sectional view of a portion of the structure shown in 50 Fi . 5. i ‘ gteferring to the drawings, a locomotive is in dicated generally by the letter A and a tender by B, the two being connected by a coupling C to permit articulation therebetween. ‘ ' The locomotive A is provided with a boiler ?re thereby providing for universal movement be tween the conduit and nozzle. The conduit 26 40 is provided at its lower end with rollers 30 mounted on the bearings 14, preferably formed integral with the lower end of the transfer con duit 26. The rollers 30 are movable along the tracks 3| of the tender frame ll to permit fore 45 and aft movement of the transfer conduit 26 with respect to the tender as relative longitudinal movement between the locomotive and tender occurs. The lower portion 32 of the conduit 26 is hop 50 per-like in construction. having diverging side walls 33 and 34, an upright front wall 35, and a rear wall 36 having an upright lower portion 31 and a rearwardly inclined upper portion 38. For ward of the front wall 35, the hopper 32 is pro 2 9,188,392 vided with an integral trough extension 38, an opening 58 in the front wall 35 providing com munication between the hopper 32 and the ex tension 38. ' A tubular member 5| constitutes the of the angle bars 58. The bottom wall 53 of the chute extends downwardly and forwardly from the rear slope sheet 22 of the bin over the in clined upper ,wall portion 38 of the hopper 32. forward portion of the transfer conduit 28 and ' The side walls 55 and 55 of the chute extend is received by and rigidly secured, in any suitable upwardly and embrace the lower edge of the ta manner, with the extension 88. pered portion of the side walls of the spout 51, ' A single screw conveyor 82 is mounted in the transfer conduit 25 and terminates at its forward 10 end within the nozzle 21, making substantially a direct delivery of fuel from the hopper 32 to the distributing mechanism ,53. The substan tially straight delivery avoids any sharp turns or angles which wouldtend to cause impacting of 15 the fuel and consequent undesirable crushing of the fuel and permits the use of a single continu ous screw conveyor, thus obviating the use of universal joints in the screw conveying system which also tend to cause undesirable crushing 7 20 of the fuel. The screw conveyor - 52 is driven from its rear ward end by a motor 54, mounted on the locomo tive frame 45. The motor shaft 55 is universally connected to’ a shaft 51 comprising telescopical 25 ly related sections 88 and 58, which in turn is universally connected with ‘a shaft 58 journaled in_ a bracket 5|, mounted on the conduit 25. The shaft 58 is universally connected with a shaft 52, journaled in the gear casing 53, and gearing 30 54 operatively connects the shaft 52 with the shaft 55, which inturn is connected with the screw conveyor 52. 35 40 45 50 a - In the practical application to a locomoti and tender of a stoker having a straight inclined transfer conduit delivering fuel from the tender to the firing opening, as best shown in Figures 1 and 3, it is clear that the transfer conduit can extend rearwardly into the tender a limited dis tance only. It is desirable, however, to have the opening in the fuel bin floor extend to the rear ward end of the bin to make the entire bin avail able for stoker ?ring of .fuel. In the patent to Fahnestock 1,792,216 the fuel must be conveyed forwardly from beneath the rear of the bin to the hopper of the transfer conveyor by another eon veyor. Such added conveying means is obviated in the present construction, and fuel is delivered by gravity from all parts of the bin directly to the hopper 32 of the transfer conduit 25. Elimi nation of added conveying means provides addi tional water space without in any way limiting the coal carrying space. In applicant’s novel construction a shorter section of the screw‘ is re ceiving coal from the fuel bin, thus less power is 55 required to operate the stoker. ' Angle bars 55 are secured to the under side of the bin floor 23 and extend longitudinally along the opposite sides of the opening 28. Secured to the inner sides of the angle bars 55 is a spout 51 embracing the opening 25, having a sloping front wall 58 and side walls 58 and 50. The side walls 58 and Gil extend downwardly a greater distance near the front wall 58 and taper off to ward the rear of the bin. The height of the front and side walls 58, 58 and 581s of course limited so that sufficient clearance is provided to permit pulling the transfer conduit 25 out of the tender or inserting it therein through the front end thereof. 70 . , In order to permit the fuel in the rearward portion of the bin to fall by gravity into the hopper of the transfer conduit, a chute 5| is pro vided. The chute 5| is pivotally mounted at its rearward end subjacent the rearward end of the 75 bin ?oor on pins 52 secured in the outer sides so that the chute can be raised about its pivotal connection to telescope the rearward portion of the spout 51. 10 - A spout 85 is pivotally mounted on a bar 51 ex tending transversely of and secured to the for ward ends of the angle bars 55. The spout 55 has a front wall 58 fitting within the hopper 32 and outside of the front wall of the spout 51. 15 The side walls 58 and 18 of the spout 55 fit outside of and telescope the front end of the chute 5| and likewise ?t outside of and telescope the lower edge of the forward portion of the side walls of the spout 51. A bar 1| extends transversely 20 of and is secured to the extreme lower rearward ends of the side walls 58 and 10 of the spout 55. The lower rearward end of the spout 55 rests on the inclined wall portion 38 of the hopper 32 and is free to move therealong as longitudinal move 25 ment of the transfer conduit with respect to the tender occurs. ‘The lower end of the chute 5| rests on the bar 1| permitting the chute 5| to slide within the 'spout 55. The motion of the hopper, it will be seen, causes movement of the 30 pivotally mounted chute 5|, since the latter is supported ‘at its end opposite its pivotally mounted end on the inclined wall portion 38 of the hopper 32, thereby keeping the fuel agitated which will cause it to be fed onto the screw con veyor 52 more uniformly. 35. ' The spouts 51 and 55 and the chute 5| thus form guides insuring the delivery of all the fuel to the hopper 32. The pivotal-connections of the spout 55 and the chute 5| permit them to be 40 raised when the transfer conduit is either re moved or placed in position in the tender. To prevent the chute 5| and spout 55 from coming apart and dropping down after the transfer con— duit is removed, a slot 12 is provided in each of 45 the side walls 54 and 55 of the chute 5| arranged to receive the pins 13 secured to the side walls 58 and 10 of the spout 55. The lower. forward wall of the nozzle 21 is provided with a slightly upturned transversely extending rolled edge || | and the lower rearward end of the distributing device 43 is provided with an arcuate indentation “2 arranged to receive the rolled edge “I, permitting partial rotation of the distributing mechanism 43_ about a trans 55 verse horizontal axis. When the lock nuts 8| are loosened, the distributing mechanism can be rotated a distance corresponding to the length of the arcuate slot 82 and adjusted to any one of a number of positions and secured in that 60 position by tightening the lock nuts 8|. Thus the trajectory of the propelled fuel particles can be adjusted by increasing or decreasing the slope of the distributing table. , The adjustable feature of the distributing 65 mechanism together with the short nozzle 43 and its universal connection with the tubular con duit 8| permits the stoker to be applied to any backhead whether it be a sloping backhead, or a straight backhead. Thus all parts of the 70 stoker can be made of uniform and standard con struction with the exception of the tubular con duit 5|, which can be conveniently and simply made to required length. I claim: _ 75 3 2,132,392 tudinally extending central opening in the ?oor thereof, a spout having side walls depending spout, and said second named spout having side walls the upper portions of which overlap the lower front edges of the sidewalls of said ?rst from the under side of said ?oor adjacent corre named spout. 1. In a tender having a fuel bin’ with a longi sponding edges of the opening therein, an open mouth stoker trough mounted on the tender be neath the forward portion of the opening in said bin floor and below the'lower marginal edge of said spout side walls, means forming a passage 10 for fuel from said spout to said trough including walls overlapping the walls of said spout and ex tending into said trough, said means being pivot ally mounted on the tender for upward swinging movement for withdrawing the walls thereof from 15 said trough. 2. In a tender having a fuel bin with a longi tudinally extending central opening in the ?oor thereof, a spout having side walls depending from the under side of said ?oor adjacent correspond ing edges of the opening therein, an open mouth stoker trough mounted on the tender below the lower marginal edge of said spout side walls, a chute and a second spout mounted subjacent the rearward and‘ forward ends of the bin, respec tively, for pivotal movement about transversely extending axes, said ‘chute and said second named spout at their free ends being supported by said trough and having walls forming a passage for fuel from said ?rst named spout to said trough, 30 the walls of said second named spout and chute overlapping the lower edges of said ?rst named spout and extending at their lower ends into said trough. ' 3. In a tender having a fuel bin with a longi tudinally extending central opening in the floor thereof, a spout having side walls depending from the under side of said ?oor adjacent correspond ing edges of the opening therein, a chute and a second spout mounted subjacent the rearward 40 and forward ends of the bin, respectively, for pivotal movement about transversely extending axes, means loosely holding said chute and said second named spout together at their free ends in overlapping relation, said chute having side walls 45 the upper portions of which overlap the lower rear edges of the side walls of said ?rst named _ 4. ‘In a tender having a fuel bin with a longi tudinally extending central opening in the ?oor thereof, a spout having side walls and a front wall depending from the under side of said ?oor adja cent the marginal side and front edges of the opening therein, a chute mounted beneath the 10 rearward end of said bin for pivotal movement about a transversely extending axis, said ‘chute having side walls arranged to overlap the'side walls of said spout and a bottornwall, a second spout mounted beneath the forward end of said 15 bin for pivotal movement about a transversely extending axis, said second named spout having side walls and a front wall arranged to-overlap the side walls and front wall of said first named spout, the side walls of said second named spout 20 at their forward "ends overlapping the forward‘ end of said chute and means for loosely retaining said spouts and chute in overlapping engagement. 5. In a tender having a fuel bin with an open-. - ing in the ?oor thereof, an open mouth trough 25 mounted on the tender beneath the level of said fuel bin floor, the rearward end of said trough . being disposed forward of the marginal rear edge ~ of the opening in said vfloor, means‘forming a passage for fuel from said bin to said trough ‘in 30 cluding a chute pivotally mounted subjacent the rearward end of said bin, said chute extending forwardly and downwardly into said trough and at its free end being supported by said trough. 6. In a tender having a fuel bin with an open 35 ing in the floor thereof, an open mouth trough mounted on the tender beneath the level of said fuel bin floor, the rearward end of.’v said trough being disposed forward of the marginal rear edge of the opening in said floor, means forming a 40 passage for fuel from said bin to said trough in cluding a chute and a spout pivotally mounted subjacent the rearward and forward ends of the bin, respectively, said chute and spout overlapping at their free ends and extending into said trough, . - ALBERT R. CHALKER.